BGP Routing: 2011-11-20

The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Saturday, November 26, 2011

[bgp-stats] Routing Table Report - RouteViews-3 view

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sun 27 Nov, 2011

NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/

Analysis Summary
----------------

BGP routing table entries examined: 386372
Prefixes after maximum aggregation: 168407
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 188308
Total ASes present in the Internet Routing Table: 39393
Prefixes per ASN: 9.81
Origin-only ASes present in the Internet Routing Table: 32473
Origin ASes announcing only one prefix: 15484
Transit ASes present in the Internet Routing Table: 5261
Transit-only ASes present in the Internet Routing Table: 135
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 29
Max AS path prepend of ASN (56677) 25
Prefixes from unregistered ASNs in the Routing Table: 5754
Unregistered ASNs in the Routing Table: 925
Number of 32-bit ASNs allocated by the RIRs: 2001
Number of 32-bit ASNs visible in the Routing Table: 1659
Prefixes from 32-bit ASNs in the Routing Table: 3925
Special use prefixes present in the Routing Table: 86
Prefixes being announced from unallocated address space: 84
Number of addresses announced to Internet: 2494430500
Equivalent to 148 /8s, 173 /16s and 253 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.6
Total number of prefixes smaller than registry allocations: 162013

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 93220
Total APNIC prefixes after maximum aggregation: 30095
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 89720
Unique aggregates announced from the APNIC address blocks: 38569
APNIC Region origin ASes present in the Internet Routing Table: 4588
APNIC Prefixes per ASN: 19.56
APNIC Region origin ASes announcing only one prefix: 1273
APNIC Region transit ASes present in the Internet Routing Table: 724
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 110
Number of APNIC addresses announced to Internet: 630719488
Equivalent to 37 /8s, 152 /16s and 4 /24s
Percentage of available APNIC address space announced: 80.0

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 175/8, 180/8,
182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8,
219/8, 220/8, 221/8, 222/8, 223/8,

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 148741
Total ARIN prefixes after maximum aggregation: 76734
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120759
Unique aggregates announced from the ARIN address blocks: 48629
ARIN Region origin ASes present in the Internet Routing Table: 14768
ARIN Prefixes per ASN: 8.18
ARIN Region origin ASes announcing only one prefix: 5628
ARIN Region transit ASes present in the Internet Routing Table: 1530
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803642376
Equivalent to 47 /8s, 230 /16s and 156 /24s
Percentage of available ARIN address space announced: 63.9

ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 393216-394239
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8,
53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8,
65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8,
72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8,
98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 173/8,
174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8,
208/8, 209/8, 214/8, 215/8, 216/8,

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 94722
Total RIPE prefixes after maximum aggregation: 51449
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 86041
Unique aggregates announced from the RIPE address blocks: 54532
RIPE Region origin ASes present in the Internet Routing Table: 16144
RIPE Prefixes per ASN: 5.33
RIPE Region origin ASes announcing only one prefix: 7982
RIPE Region transit ASes present in the Internet Routing Table: 2526
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1156
Number of RIPE addresses announced to Internet: 492959692
Equivalent to 29 /8s, 97 /16s and 247 /24s
Percentage of available RIPE address space announced: 79.4

RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 37189
Total LACNIC prefixes after maximum aggregation: 8002
LACNIC Deaggregation factor: 4.65
Prefixes being announced from the LACNIC address blocks: 36513
Unique aggregates announced from the LACNIC address blocks: 18781
LACNIC Region origin ASes present in the Internet Routing Table: 1551
LACNIC Prefixes per ASN: 23.54
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 287
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 26
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 377
Number of LACNIC addresses announced to Internet: 93828360
Equivalent to 5 /8s, 151 /16s and 181 /24s
Percentage of available LACNIC address space announced: 62.1

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 8366
Total AfriNIC prefixes after maximum aggregation: 2052
AfriNIC Deaggregation factor: 4.08
Prefixes being announced from the AfriNIC address blocks: 6415
Unique aggregates announced from the AfriNIC address blocks: 2025
AfriNIC Region origin ASes present in the Internet Routing Table: 504
AfriNIC Prefixes per ASN: 12.73
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 113
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27879424
Equivalent to 1 /8s, 169 /16s and 104 /24s
Percentage of available AfriNIC address space announced: 41.5

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 1955 11102 667 Korea Telecom (KIX)
17974 1638 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1623 303 86 TPG Internet Pty Ltd
4755 1515 381 157 Videsh Sanchar Nigam Ltd. Aut
7552 1389 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1096 81 493 Sify Limited
24560 966 343 218 Bharti Airtel Ltd.
18101 954 119 149 Reliance Infocom Ltd Internet
17488 907 170 208 Hathway IP Over Cable Interne

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3482 3814 218 bellsouth.net, inc.
7029 2906 1020 199 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1850 680 122 AppliedTheory Corporation
4323 1610 1078 387 Time Warner Telecom
20115 1599 1546 624 Charter Communications
22773 1502 2909 104 Cox Communications, Inc.
30036 1438 258 678 Mediacom Communications Corp
19262 1387 4683 401 Verizon Global Networks
7018 1317 7062 863 AT&T WorldNet Services

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1501 480 15 Corbina telecom
286 1092 811 201 KPNQwest Backbone AS
6830 652 1927 412 UPC Distribution Services
34984 612 114 193 Tellcom Iletisim Hizmetleri
20940 564 188 443 Akamai Technologies European
9116 541 326 31 Goldenlines main autonomous s
3292 532 2106 408 TDC Tele Danmark
3320 512 8168 389 Deutsche Telekom AG
12479 504 606 23 Uni2 Autonomous System
8866 462 133 26 Bulgarian Telecommunication C

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
10620 1700 315 179 TVCABLE BOGOTA
28573 1506 1045 71 Types of queries are: POCs, o
8151 1487 2954 339 Uninet S.A. de C.V.
7303 1236 751 173 Telecom Argentina Stet-France
27947 623 72 88 Telconet S.A
22047 581 322 17 Types of queries are: POCs, o
6503 563 434 70 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
10481 546 429 25 Prima S.A.
3816 545 236 87 COLOMBIA TELECOMUNICACIONES S

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8452 902 446 12 TEDATA
24863 781 146 36 LINKdotNET AS number
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
12258 197 28 58 YEBO-AS
24835 192 80 8 RAYA Telecom - Egypt
36923 157 20 4 Swift Networks Limited

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3482 3814 218 bellsouth.net, inc.
7029 2906 1020 199 Windstream Communications Inc
18566 2093 383 177 Covad Communications
4766 1955 11102 667 Korea Telecom (KIX)
1785 1850 680 122 AppliedTheory Corporation
10620 1700 315 179 TVCABLE BOGOTA
17974 1638 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1623 303 86 TPG Internet Pty Ltd
4323 1610 1078 387 Time Warner Telecom
20115 1599 1546 624 Charter Communications

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
7029 2906 2707 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1850 1728 AppliedTheory Corporation
17974 1638 1602 PT TELEKOMUNIKASI INDONESIA
7545 1623 1537 TPG Internet Pty Ltd
10620 1700 1521 TVCABLE BOGOTA
8402 1501 1486 Corbina telecom
28573 1506 1435 Types of queries are: POCs, o
22773 1502 1398 Cox Communications, Inc.
7552 1389 1382 Vietel Corporation

Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 7018 AT&T WorldNet Servic

Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
10.29.244.56/29 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS

Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 37345 MEDALLION Communications
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless

Complete listing at http://thyme.rand.apnic.net/rviews/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:12 /10:27 /11:81 /12:236
/13:465 /14:814 /15:1465 /16:12171 /17:6349 /18:10422
/19:20552 /20:28889 /21:28287 /22:38401 /23:36082 /24:200373
/25:67 /26:83 /27:112 /28:287 /29:112 /30:526
/31:53 /32:487

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
7029 2537 2906 Windstream Communications Inc
6389 2125 3482 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1595 1700 TVCABLE BOGOTA
8402 1477 1501 Corbina telecom
30036 1398 1438 Mediacom Communications Corp
11492 1118 1155 Cable One
1785 1058 1850 AppliedTheory Corporation
7011 1050 1163 Citizens Utilities
22773 962 1502 Cox Communications, Inc.

Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:424 2:483 4:19 5:1 6:3 8:359
12:1954 13:1 14:549 15:11 16:3 17:7
20:9 23:68 24:1701 27:1034 31:693 32:121
33:2 34:2 36:4 38:768 39:1 40:109
41:2893 42:64 43:1 44:3 46:1105 47:3
49:298 50:451 52:13 55:6 56:2 57:59
58:929 59:484 60:358 61:1173 62:929 63:1984
64:4099 65:2311 66:4372 67:2041 68:1357 69:3259
70:953 71:359 72:1844 73:1 74:2704 75:443
76:332 77:900 78:890 79:461 80:1137 81:850
82:533 83:525 84:479 85:1153 86:410 87:913
88:356 89:1606 90:246 91:4294 92:537 93:1432
94:1328 95:1085 96:400 97:285 98:770 99:37
101:247 103:518 106:7 107:97 108:89 109:1211
110:683 111:811 112:364 113:504 114:633 115:715
116:897 117:722 118:882 119:1282 120:292 121:687
122:1561 123:1021 124:1364 125:1346 128:266 129:187
130:178 131:634 132:155 133:21 134:224 135:54
136:212 137:145 138:285 139:133 140:492 141:250
142:380 143:403 144:498 145:66 146:477 147:231
148:692 149:274 150:163 151:191 152:449 153:172
154:7 155:394 156:208 157:362 158:156 159:499
160:333 161:215 162:365 163:175 164:518 165:402
166:540 167:448 168:827 169:146 170:826 171:87
172:4 173:1769 174:581 175:436 176:320 177:405
178:1135 180:1185 181:39 182:669 183:249 184:395
185:1 186:1465 187:787 188:996 189:1162 190:5253
192:5960 193:5065 194:3578 195:3138 196:1290 197:170
198:3628 199:4239 200:5539 201:1702 202:8572 203:8535
204:4317 205:2416 206:2687 207:2843 208:4028 209:3612
210:2758 211:1478 212:2060 213:1814 214:786 215:96
216:4959 217:1486 218:578 219:342 220:1259 221:523
222:328 223:280

End of report
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[bgp-stats] Routing Table Report - London view

* BGP Routing Table Analysis Reports *
Routing Table Report 08:00 +10GMT Sun 27 Nov, 2011

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/

Analysis Summary
----------------

BGP routing table entries examined: 377207
Prefixes after maximum aggregation: 165223
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 188102
Total ASes present in the Internet Routing Table: 37563
Prefixes per ASN: 10.04
Origin-only ASes present in the Internet Routing Table: 32376
Origin ASes announcing only one prefix: 15466
Transit ASes present in the Internet Routing Table: 5187
Transit-only ASes present in the Internet Routing Table: 125
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2520
Unregistered ASNs in the Routing Table: 979
Number of 32-bit ASNs allocated by the RIRs: 2001
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3912
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 84
Number of addresses announced to Internet: 2511194880
Equivalent to 149 /8s, 173 /16s and 203 /24s
Percentage of available address space announced: 67.8
Percentage of allocated address space announced: 67.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.6
Total number of prefixes smaller than registry allocations: 157874

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 90316
Total APNIC prefixes after maximum aggregation: 29936
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 87719
Unique aggregates announced from the APNIC address blocks: 38615
APNIC Region origin ASes present in the Internet Routing Table: 4547
APNIC Prefixes per ASN: 19.29
APNIC Region origin ASes announcing only one prefix: 1266
APNIC Region transit ASes present in the Internet Routing Table: 700
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 630503936
Equivalent to 37 /8s, 148 /16s and 186 /24s
Percentage of available APNIC address space announced: 80.0

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 144767
Total ARIN prefixes after maximum aggregation: 74090
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 117314
Unique aggregates announced from the ARIN address blocks: 48598
ARIN Region origin ASes present in the Internet Routing Table: 14685
ARIN Prefixes per ASN: 7.99
ARIN Region origin ASes announcing only one prefix: 5620
ARIN Region transit ASes present in the Internet Routing Table: 1495
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 803355904
Equivalent to 47 /8s, 226 /16s and 61 /24s
Percentage of available ARIN address space announced: 63.8

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 93141
Total RIPE prefixes after maximum aggregation: 51226
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 85314
Unique aggregates announced from the RIPE address blocks: 54495
RIPE Region origin ASes present in the Internet Routing Table: 16122
RIPE Prefixes per ASN: 5.29
RIPE Region origin ASes announcing only one prefix: 7981
RIPE Region transit ASes present in the Internet Routing Table: 2538
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 22
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 492663040
Equivalent to 29 /8s, 93 /16s and 113 /24s
Percentage of available RIPE address space announced: 79.4

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 36050
Total LACNIC prefixes after maximum aggregation: 7865
LACNIC Deaggregation factor: 4.58
Prefixes being announced from the LACNIC address blocks: 35605
Unique aggregates announced from the LACNIC address blocks: 18770
LACNIC Region origin ASes present in the Internet Routing Table: 1538
LACNIC Prefixes per ASN: 23.15
LACNIC Region origin ASes announcing only one prefix: 442
LACNIC Region transit ASes present in the Internet Routing Table: 270
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 93778944
Equivalent to 5 /8s, 150 /16s and 244 /24s
Percentage of available LACNIC address space announced: 62.1

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 8321
Total AfriNIC prefixes after maximum aggregation: 2031
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 6392
Unique aggregates announced from the AfriNIC address blocks: 2016
AfriNIC Region origin ASes present in the Internet Routing Table: 502
AfriNIC Prefixes per ASN: 12.73
AfriNIC Region origin ASes announcing only one prefix: 157
AfriNIC Region transit ASes present in the Internet Routing Table: 113
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 27874048
Equivalent to 1 /8s, 169 /16s and 83 /24s
Percentage of available AfriNIC address space announced: 41.5

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 1955 11102 667 Korea Telecom (KIX)
7545 1623 303 86 TPG Internet Pty Ltd
17974 1574 511 36 PT Telekomunikasi Indonesia
4755 1503 381 157 TATA Communications formerly
9829 1166 989 28 National Internet Backbone
9583 1096 81 493 Sify Limited
7552 977 1062 11 Vietel Corporation
24560 966 343 218 Bharti Airtel Ltd., Telemedia
18101 954 119 149 Reliance Infocom Ltd Internet
4808 940 1978 276 CNCGROUP IP network China169

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3479 3814 218 BellSouth.net Inc.
7029 2943 1042 212 Windstream Communications Inc
18566 2093 382 176 Covad Communications Co.
1785 1852 680 121 PaeTec Communications, Inc.
4323 1613 1094 390 tw telecom holdings, inc.
20115 1599 1546 624 Charter Communications
22773 1501 2909 104 Cox Communications Inc.
30036 1437 257 677 Mediacom Communications Corp
19262 1387 4683 401 Verizon Online LLC
7018 1322 7063 868 AT&T Services, Inc.

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1495 480 15 Corbina telecom
6830 650 1927 412 UPC Broadband
34984 611 114 192 BILISIM TELEKOM
20940 558 186 440 Akamai Technologies European
9116 541 326 31 Goldenlines main autonomous s
3320 511 8168 388 Deutsche Telekom AG
12479 504 606 23 France Telecom Espana SA
3292 480 2106 408 TDC Data Networks
8866 462 133 26 Bulgarian Telecommunication C
8551 417 367 39 Bezeq International

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
10620 1700 315 179 Types of queries are: POCs, o
28573 1509 1045 71 Types of queries are: POCs, o
8151 1313 2954 337 Uninet S.A. de C.V.
7303 1236 751 173 Telecom Argentina S.A.
27947 599 72 88 Telconet S.A
22047 581 322 17 Types of queries are: POCs, o
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 548 237 87 Types of queries are: POCs, o
6503 542 434 69 Axtel, S.A.B. de C.V.
11172 528 101 96 Alestra, S. de R.L. de C.V.

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8452 902 446 12 TEDATA
24863 777 146 33 LINKdotNET AS number
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
12258 197 28 58 Vodacom Internet Company
24835 192 80 8 RAYA Telecom - Egypt
36923 157 20 4 Swift Networks Limited

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3479 3814 218 BellSouth.net Inc.
7029 2943 1042 212 Windstream Communications Inc
18566 2093 382 176 Covad Communications Co.
4766 1955 11102 667 Korea Telecom (KIX)
1785 1852 680 121 PaeTec Communications, Inc.
10620 1700 315 179 Types of queries are: POCs, o
7545 1623 303 86 TPG Internet Pty Ltd
4323 1613 1094 390 tw telecom holdings, inc.
20115 1599 1546 624 Charter Communications
17974 1574 511 36 PT Telekomunikasi Indonesia

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
7029 2943 2731 Windstream Communications Inc
18566 2093 1917 Covad Communications Co.
1785 1852 1731 PaeTec Communications, Inc.
17974 1574 1538 PT Telekomunikasi Indonesia
7545 1623 1537 TPG Internet Pty Ltd
10620 1700 1521 Types of queries are: POCs, o
8402 1495 1480 Corbina telecom
28573 1509 1438 Types of queries are: POCs, o
22773 1501 1397 Cox Communications Inc.
4755 1503 1346 TATA Communications formerly

Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T Services, Inc.

Complete listing at http://thyme.rand.apnic.net/london/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut

Complete listing at http://thyme.rand.apnic.net/london/data-dsua

Advertised Unallocated Addresses
--------------------------------

Complete listing at http://thyme.rand.apnic.net/london/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:20 /9:12 /10:27 /11:81 /12:237
/13:465 /14:806 /15:1430 /16:11987 /17:6077 /18:10109
/19:20123 /20:27691 /21:27850 /22:37707 /23:35303 /24:196744
/25:11 /26:21 /27:21 /28:154 /29:133 /30:63
/31:0 /32:135

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
7029 2556 2943 Windstream Communications Inc
6389 2122 3479 BellSouth.net Inc.
18566 2043 2093 Covad Communications Co.
10620 1595 1700 Types of queries are: POCs, o
8402 1470 1495 Corbina telecom
30036 1397 1437 Mediacom Communications Corp
11492 1118 1155 CABLE ONE, INC.
1785 1058 1852 PaeTec Communications, Inc.
7011 1050 1167 Frontier Communications of Am
22773 961 1501 Cox Communications Inc.

Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:424 2:482 4:15 5:1 6:3 8:358
12:1947 13:1 14:544 15:11 16:3 17:7
20:9 23:68 24:1689 27:1029 31:683 32:61
33:2 34:2 36:4 38:762 40:109 41:2876
42:64 44:3 46:1098 47:3 49:295 50:448
52:13 55:6 56:2 57:45 58:869 59:479
60:354 61:1064 62:917 63:1962 64:4056 65:2307
66:4335 67:2010 68:1172 69:3148 70:902 71:359
72:1814 74:2648 75:430 76:320 77:898 78:887
79:460 80:1133 81:843 82:525 83:525 84:469
85:1159 86:409 87:912 88:353 89:1597 90:246
91:4284 92:537 93:1431 94:1325 95:1081 96:391
97:285 98:762 99:37 101:125 103:506 106:7
107:97 108:86 109:1199 110:657 111:805 112:355
113:481 114:617 115:687 116:847 117:694 118:864
119:1219 120:348 121:651 122:1555 123:1025 124:1298
125:1295 128:231 129:176 130:170 131:630 132:147
133:21 134:215 135:54 136:210 137:142 138:285
139:120 140:467 141:249 142:362 143:395 144:495
145:66 146:470 147:221 148:618 149:273 150:156
151:191 152:447 153:172 154:6 155:394 156:205
157:329 158:156 159:427 160:332 161:205 162:362
163:165 164:514 165:380 166:540 167:448 168:821
169:144 170:826 171:87 172:4 173:1750 174:576
175:415 176:320 177:401 178:1127 180:1173 181:36
182:652 183:241 184:394 185:1 186:1462 187:788
188:990 189:1163 190:5226 192:5882 193:5049 194:3544
195:3112 196:1262 197:170 198:3564 199:4185 200:5461
201:1695 202:8259 203:8418 204:4237 205:2393 206:2569
207:2769 208:4011 209:3557 210:2664 211:1442 212:2026
213:1809 214:786 215:95 216:4897 217:1481 218:557
219:334 220:1215 221:503 222:298 223:277

End of report
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[bgp-stats] Routing Table Report - Japan view

* BGP Routing Table Analysis Reports *
Routing Table Report 04:00 +10GMT Sun 27 Nov, 2011

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/

Analysis Summary
----------------

BGP routing table entries examined: 382993
Prefixes after maximum aggregation: 166997
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 188179
Total ASes present in the Internet Routing Table: 39376
Prefixes per ASN: 9.73
Origin-only ASes present in the Internet Routing Table: 32415
Origin ASes announcing only one prefix: 15465
Transit ASes present in the Internet Routing Table: 5304
Transit-only ASes present in the Internet Routing Table: 137
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 1779
Unregistered ASNs in the Routing Table: 906
Number of 32-bit ASNs allocated by the RIRs: 2001
Number of 32-bit ASNs visible in the Routing Table: 1657
Prefixes from 32-bit ASNs in the Routing Table: 3921
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 85
Number of addresses announced to Internet: 2493774848
Equivalent to 148 /8s, 163 /16s and 252 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.6
Total number of prefixes smaller than registry allocations: 161695

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 95344
Total APNIC prefixes after maximum aggregation: 31121
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 91799
Unique aggregates announced from the APNIC address blocks: 38611
APNIC Region origin ASes present in the Internet Routing Table: 4600
APNIC Prefixes per ASN: 19.96
APNIC Region origin ASes announcing only one prefix: 1254
APNIC Region transit ASes present in the Internet Routing Table: 716
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 111
Number of APNIC addresses announced to Internet: 630813792
Equivalent to 37 /8s, 153 /16s and 116 /24s
Percentage of available APNIC address space announced: 80.0

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 145935
Total ARIN prefixes after maximum aggregation: 74526
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118211
Unique aggregates announced from the ARIN address blocks: 48621
ARIN Region origin ASes present in the Internet Routing Table: 14759
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5636
ARIN Region transit ASes present in the Internet Routing Table: 1565
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803295168
Equivalent to 47 /8s, 225 /16s and 79 /24s
Percentage of available ARIN address space announced: 63.8

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 92681
Total RIPE prefixes after maximum aggregation: 51289
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 84885
Unique aggregates announced from the RIPE address blocks: 54488
RIPE Region origin ASes present in the Internet Routing Table: 16126
RIPE Prefixes per ASN: 5.26
RIPE Region origin ASes announcing only one prefix: 7978
RIPE Region transit ASes present in the Internet Routing Table: 2549
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1152
Number of RIPE addresses announced to Internet: 492704064
Equivalent to 29 /8s, 94 /16s and 17 /24s
Percentage of available RIPE address space announced: 79.4

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 36587
Total LACNIC prefixes after maximum aggregation: 7955
LACNIC Deaggregation factor: 4.60
Prefixes being announced from the LACNIC address blocks: 36003
Unique aggregates announced from the LACNIC address blocks: 18782
LACNIC Region origin ASes present in the Internet Routing Table: 1552
LACNIC Prefixes per ASN: 23.20
LACNIC Region origin ASes announcing only one prefix: 442
LACNIC Region transit ASes present in the Internet Routing Table: 286
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 378
Number of LACNIC addresses announced to Internet: 93823360
Equivalent to 5 /8s, 151 /16s and 161 /24s
Percentage of available LACNIC address space announced: 62.1

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 8352
Total AfriNIC prefixes after maximum aggregation: 2031
AfriNIC Deaggregation factor: 4.11
Prefixes being announced from the AfriNIC address blocks: 6407
Unique aggregates announced from the AfriNIC address blocks: 2025
AfriNIC Region origin ASes present in the Internet Routing Table: 501
AfriNIC Prefixes per ASN: 12.79
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 109
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27879424
Equivalent to 1 /8s, 169 /16s and 104 /24s
Percentage of available AfriNIC address space announced: 41.5

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 2517 11105 974 Korea Telecom (KIX)
17974 1635 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1626 303 86 TPG Internet Pty Ltd
4755 1515 381 157 TATA Communications formerly
7552 1389 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1096 81 493 Sify Limited
4808 1081 2072 311 CNCGROUP IP network: China169
24560 966 343 218 Bharti Airtel Ltd., Telemedia
18101 953 119 149 Reliance Infocom Ltd Internet

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3479 3814 217 bellsouth.net, inc.
7029 2909 1016 199 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1849 680 121 PaeTec Communications, Inc.
4323 1613 1078 389 Time Warner Telecom
20115 1600 1546 624 Charter Communications
22773 1502 2909 104 Cox Communications, Inc.
30036 1438 258 678 Mediacom Communications Corp
19262 1388 4683 402 Verizon Global Networks
7018 1314 7030 860 AT&T WorldNet Services

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1525 480 15 Corbina telecom
6830 651 1927 412 UPC Distribution Services
34984 612 114 193 BILISIM TELEKOM
20940 557 186 439 Akamai Technologies European
3320 512 8168 389 Deutsche Telekom AG
12479 504 606 23 Uni2 Autonomous System
3292 478 2106 406 TDC Tele Danmark
8866 463 133 26 Bulgarian Telecommunication C
8551 416 366 45 Bezeq International
31148 412 22 116 FreeNet ISP

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
10620 1700 315 179 TVCABLE BOGOTA
28573 1517 1045 71 NET Servicos de Comunicao S.A
8151 1445 2973 342 UniNet S.A. de C.V.
7303 1236 751 173 Telecom Argentina Stet-France
27947 610 72 87 Telconet S.A
22047 581 322 17 VTR PUNTO NET S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
6503 552 434 68 AVANTEL, S.A.
3816 545 236 87 Empresa Nacional de Telecomun
11172 528 85 95 Servicios Alestra S.A de C.V

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8452 902 446 12 TEDATA
24863 781 146 36 LINKdotNET AS number
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
12258 196 28 57 Vodacom Internet Company
24835 192 80 8 RAYA Telecom - Egypt
16637 157 664 83 MTN Network Solutions

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3479 3814 217 bellsouth.net, inc.
7029 2909 1016 199 Windstream Communications Inc
4766 2517 11105 974 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1849 680 121 PaeTec Communications, Inc.
10620 1700 315 179 TVCABLE BOGOTA
17974 1635 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1626 303 86 TPG Internet Pty Ltd
4323 1613 1078 389 Time Warner Telecom
20115 1600 1546 624 Charter Communications

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
7029 2909 2710 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1849 1728 PaeTec Communications, Inc.
17974 1635 1599 PT TELEKOMUNIKASI INDONESIA
4766 2517 1543 Korea Telecom (KIX)
7545 1626 1540 TPG Internet Pty Ltd
10620 1700 1521 TVCABLE BOGOTA
8402 1525 1510 Corbina telecom
28573 1517 1446 NET Servicos de Comunicao S.A
22773 1502 1398 Cox Communications, Inc.

Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser

Complete listing at http://thyme.rand.apnic.net/current/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project

Complete listing at http://thyme.rand.apnic.net/current/data-dsua

Advertised Unallocated Addresses
--------------------------------

Complete listing at http://thyme.rand.apnic.net/current/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:12 /10:27 /11:81 /12:236
/13:465 /14:808 /15:1432 /16:12027 /17:6092 /18:10147
/19:20010 /20:27716 /21:27921 /22:38039 /23:35604 /24:198908
/25:1160 /26:1350 /27:770 /28:161 /29:3 /30:0
/31:0 /32:5

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
7029 2538 2909 Windstream Communications Inc
6389 2123 3479 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1595 1700 TVCABLE BOGOTA
8402 1500 1525 Corbina telecom
30036 1398 1438 Mediacom Communications Corp
11492 1118 1155 Cable One
1785 1058 1849 PaeTec Communications, Inc.
7011 1048 1165 Citizens Utilities
22773 962 1502 Cox Communications, Inc.

Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:425 2:484 4:15 5:1 6:3 8:358
12:1952 13:1 14:553 15:11 16:3 17:7
20:9 23:68 24:1693 27:1034 31:684 32:66
33:2 34:2 36:4 38:767 39:1 40:109
41:2882 42:64 43:1 44:3 46:1101 47:3
49:298 50:449 52:13 55:6 56:2 57:49
58:927 59:484 60:358 61:1167 62:917 63:1966
64:4079 65:2308 66:4347 67:2011 68:1173 69:3148
70:904 71:359 72:1814 74:2650 75:430 76:320
77:898 78:888 79:458 80:1132 81:843 82:519
83:520 84:470 85:1152 86:402 87:910 88:353
89:1594 90:246 91:4276 92:537 93:1434 94:1324
95:1086 96:396 97:285 98:763 99:37 101:247
103:518 106:7 107:97 108:86 109:1201 110:677
111:810 112:364 113:502 114:631 115:715 116:881
117:720 118:878 119:1281 120:292 121:668 122:1557
123:1031 124:1357 125:1344 128:265 129:184 130:176
131:633 132:155 133:21 134:223 135:54 136:212
137:145 138:285 139:122 140:494 141:250 142:379
143:399 144:498 145:66 146:476 147:220 148:638
149:274 150:163 151:191 152:449 153:172 154:6
155:379 156:208 157:360 158:156 159:499 160:333
161:215 162:365 163:175 164:518 165:381 166:540
167:448 168:826 169:145 170:826 171:87 172:4
173:1751 174:576 175:436 176:321 177:403 178:1126
180:1178 181:39 182:664 183:249 184:394 185:1
186:1464 187:786 188:993 189:1162 190:5239 192:5931
193:5050 194:3542 195:3110 196:1278 197:169 198:3610
199:4228 200:5530 201:1710 202:8564 203:8518 204:4306
205:2413 206:2656 207:2836 208:4018 209:3583 210:2752
211:1451 212:2012 213:1806 214:786 215:96 216:4924
217:1480 218:568 219:341 220:1252 221:512 222:327
223:280

End of report
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Friday, November 25, 2011

[bgp-stats] Routing Table Report - RouteViews-3 view

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sat 26 Nov, 2011

NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/

Analysis Summary
----------------

BGP routing table entries examined: 386362
Prefixes after maximum aggregation: 168469
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 188257
Total ASes present in the Internet Routing Table: 39385
Prefixes per ASN: 9.81
Origin-only ASes present in the Internet Routing Table: 32474
Origin ASes announcing only one prefix: 15478
Transit ASes present in the Internet Routing Table: 5256
Transit-only ASes present in the Internet Routing Table: 137
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 28
Max AS path prepend of ASN (56677) 25
Prefixes from unregistered ASNs in the Routing Table: 5728
Unregistered ASNs in the Routing Table: 923
Number of 32-bit ASNs allocated by the RIRs: 1995
Number of 32-bit ASNs visible in the Routing Table: 1655
Prefixes from 32-bit ASNs in the Routing Table: 3907
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 84
Number of addresses announced to Internet: 2494251812
Equivalent to 148 /8s, 171 /16s and 67 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.6
Total number of prefixes smaller than registry allocations: 162031

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 93241
Total APNIC prefixes after maximum aggregation: 30157
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 89754
Unique aggregates announced from the APNIC address blocks: 38604
APNIC Region origin ASes present in the Internet Routing Table: 4588
APNIC Prefixes per ASN: 19.56
APNIC Region origin ASes announcing only one prefix: 1265
APNIC Region transit ASes present in the Internet Routing Table: 719
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 108
Number of APNIC addresses announced to Internet: 630822912
Equivalent to 37 /8s, 153 /16s and 152 /24s
Percentage of available APNIC address space announced: 80.0

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 148754
Total ARIN prefixes after maximum aggregation: 76730
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120772
Unique aggregates announced from the ARIN address blocks: 48637
ARIN Region origin ASes present in the Internet Routing Table: 14764
ARIN Prefixes per ASN: 8.18
ARIN Region origin ASes announcing only one prefix: 5624
ARIN Region transit ASes present in the Internet Routing Table: 1532
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803634184
Equivalent to 47 /8s, 230 /16s and 124 /24s
Percentage of available ARIN address space announced: 63.9

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 94837
Total RIPE prefixes after maximum aggregation: 51452
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 86134
Unique aggregates announced from the RIPE address blocks: 54545
RIPE Region origin ASes present in the Internet Routing Table: 16148
RIPE Prefixes per ASN: 5.33
RIPE Region origin ASes announcing only one prefix: 7985
RIPE Region transit ASes present in the Internet Routing Table: 2521
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1155
Number of RIPE addresses announced to Internet: 492952780
Equivalent to 29 /8s, 97 /16s and 220 /24s
Percentage of available RIPE address space announced: 79.4

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 37082
Total LACNIC prefixes after maximum aggregation: 8012
LACNIC Deaggregation factor: 4.63
Prefixes being announced from the LACNIC address blocks: 36399
Unique aggregates announced from the LACNIC address blocks: 18694
LACNIC Region origin ASes present in the Internet Routing Table: 1550
LACNIC Prefixes per ASN: 23.48
LACNIC Region origin ASes announcing only one prefix: 448
LACNIC Region transit ASes present in the Internet Routing Table: 287
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 26
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 376
Number of LACNIC addresses announced to Internet: 93606152
Equivalent to 5 /8s, 148 /16s and 81 /24s
Percentage of available LACNIC address space announced: 62.0

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 8336
Total AfriNIC prefixes after maximum aggregation: 2044
AfriNIC Deaggregation factor: 4.08
Prefixes being announced from the AfriNIC address blocks: 6390
Unique aggregates announced from the AfriNIC address blocks: 2013
AfriNIC Region origin ASes present in the Internet Routing Table: 500
AfriNIC Prefixes per ASN: 12.78
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 112
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27873792
Equivalent to 1 /8s, 169 /16s and 82 /24s
Percentage of available AfriNIC address space announced: 41.5

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 1954 11102 666 Korea Telecom (KIX)
17974 1635 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1623 303 86 TPG Internet Pty Ltd
4755 1513 376 168 Videsh Sanchar Nigam Ltd. Aut
7552 1384 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1087 79 496 Sify Limited
24560 966 343 218 Bharti Airtel Ltd.
18101 954 119 149 Reliance Infocom Ltd Internet
17488 943 172 212 Hathway IP Over Cable Interne

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3482 3814 218 bellsouth.net, inc.
7029 2906 1020 199 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1850 680 122 AppliedTheory Corporation
4323 1610 1078 387 Time Warner Telecom
20115 1599 1546 624 Charter Communications
22773 1502 2909 104 Cox Communications, Inc.
30036 1440 258 676 Mediacom Communications Corp
19262 1388 4683 402 Verizon Global Networks
7018 1317 7062 863 AT&T WorldNet Services

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1570 480 15 Corbina telecom
286 1093 811 202 KPNQwest Backbone AS
6830 652 1927 412 UPC Distribution Services
34984 612 114 193 Tellcom Iletisim Hizmetleri
20940 564 188 443 Akamai Technologies European
9116 541 326 31 Goldenlines main autonomous s
3292 532 2106 408 TDC Tele Danmark
3320 512 8168 389 Deutsche Telekom AG
12479 498 603 18 Uni2 Autonomous System
8866 462 133 26 Bulgarian Telecommunication C

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
10620 1700 315 179 TVCABLE BOGOTA
28573 1506 1045 71 Types of queries are: POCs, o
8151 1489 2954 339 Uninet S.A. de C.V.
7303 1238 751 173 Telecom Argentina Stet-France
27947 622 72 87 Telconet S.A
22047 581 322 17 Types of queries are: POCs, o
6503 565 434 70 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
10481 546 429 25 Prima S.A.
3816 545 236 87 COLOMBIA TELECOMUNICACIONES S

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8452 897 446 12 TEDATA
24863 781 146 36 LINKdotNET AS number
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
12258 197 28 58 YEBO-AS
24835 192 80 8 RAYA Telecom - Egypt
36923 157 20 4 Swift Networks Limited

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3482 3814 218 bellsouth.net, inc.
7029 2906 1020 199 Windstream Communications Inc
18566 2093 383 177 Covad Communications
4766 1954 11102 666 Korea Telecom (KIX)
1785 1850 680 122 AppliedTheory Corporation
10620 1700 315 179 TVCABLE BOGOTA
17974 1635 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1623 303 86 TPG Internet Pty Ltd
4323 1610 1078 387 Time Warner Telecom
20115 1599 1546 624 Charter Communications

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
7029 2906 2707 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1850 1728 AppliedTheory Corporation
17974 1635 1599 PT TELEKOMUNIKASI INDONESIA
8402 1570 1555 Corbina telecom
7545 1623 1537 TPG Internet Pty Ltd
10620 1700 1521 TVCABLE BOGOTA
28573 1506 1435 Types of queries are: POCs, o
22773 1502 1398 Cox Communications, Inc.
7552 1384 1377 Vietel Corporation

Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
10.0.1.0/24 286 KPNQwest Backbone AS
10.29.244.56/29 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS

Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua

Advertised Unallocated Addresses
--------------------------------

Complete listing at http://thyme.rand.apnic.net/rviews/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:20 /9:12 /10:27 /11:81 /12:236
/13:465 /14:814 /15:1465 /16:12170 /17:6345 /18:10425
/19:20557 /20:28884 /21:28267 /22:38371 /23:36058 /24:200436
/25:66 /26:84 /27:112 /28:290 /29:111 /30:526
/31:53 /32:487

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
7029 2537 2906 Windstream Communications Inc
6389 2125 3482 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1595 1700 TVCABLE BOGOTA
8402 1546 1570 Corbina telecom
30036 1400 1440 Mediacom Communications Corp
11492 1118 1155 Cable One
1785 1058 1850 AppliedTheory Corporation
7011 1050 1167 Citizens Utilities
22773 962 1502 Cox Communications, Inc.

Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:421 2:488 4:19 5:1 6:3 8:359
10:1 12:1954 13:1 14:557 15:11 16:3
17:7 20:9 23:68 24:1702 27:1036 31:693
32:121 33:2 34:2 36:4 38:768 39:1
40:109 41:2875 42:64 43:1 44:3 46:1101
47:3 49:296 50:452 52:13 55:6 56:2
57:59 58:930 59:486 60:360 61:1173 62:928
63:1984 64:4100 65:2312 66:4370 67:2040 68:1356
69:3259 70:953 71:359 72:1844 73:1 74:2705
75:443 76:332 77:900 78:892 79:464 80:1149
81:847 82:537 83:525 84:480 85:1152 86:409
87:911 88:356 89:1608 90:246 91:4302 92:538
93:1435 94:1329 95:1127 96:400 97:285 98:780
99:37 101:247 103:517 106:7 107:97 108:89
109:1211 110:681 111:813 112:363 113:505 114:634
115:714 116:923 117:722 118:859 119:1289 120:353
121:689 122:1563 123:1028 124:1355 125:1354 128:270
129:187 130:176 131:634 132:155 133:21 134:225
135:54 136:212 137:145 138:285 139:133 140:494
141:250 142:380 143:401 144:498 145:66 146:477
147:231 148:694 149:275 150:163 151:191 152:449
153:172 154:7 155:394 156:208 157:362 158:156
159:488 160:333 161:215 162:365 163:175 164:518
165:402 166:540 167:448 168:829 169:146 170:826
171:87 172:4 173:1770 174:586 175:435 176:333
177:403 178:1136 180:1181 181:39 182:669 183:247
184:395 185:1 186:1464 187:783 188:996 189:1138
190:5226 192:5961 193:5073 194:3578 195:3136 196:1290
197:171 198:3630 199:4238 200:5517 201:1704 202:8567
203:8530 204:4317 205:2414 206:2685 207:2843 208:4035
209:3612 210:2747 211:1478 212:2060 213:1811 214:784
215:91 216:4956 217:1484 218:577 219:342 220:1260
221:523 222:327 223:280

End of report
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