BGP Routing: 2011-11-13

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 19, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sun 20 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: 385661
Prefixes after maximum aggregation: 168171
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 187860
Total ASes present in the Internet Routing Table: 39337
Prefixes per ASN: 9.80
Origin-only ASes present in the Internet Routing Table: 32508
Origin ASes announcing only one prefix: 15485
Transit ASes present in the Internet Routing Table: 5180
Transit-only ASes present in the Internet Routing Table: 125
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5578
Unregistered ASNs in the Routing Table: 908
Number of 32-bit ASNs allocated by the RIRs: 1971
Number of 32-bit ASNs visible in the Routing Table: 1649
Prefixes from 32-bit ASNs in the Routing Table: 3823
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 85
Number of addresses announced to Internet: 2491005476
Equivalent to 148 /8s, 121 /16s and 186 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
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: 161855

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

Prefixes being announced by APNIC Region ASes: 93178
Total APNIC prefixes after maximum aggregation: 30084
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 89671
Unique aggregates announced from the APNIC address blocks: 38423
APNIC Region origin ASes present in the Internet Routing Table: 4598
APNIC Prefixes per ASN: 19.50
APNIC Region origin ASes announcing only one prefix: 1285
APNIC Region transit ASes present in the Internet Routing Table: 715
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 110
Number of APNIC addresses announced to Internet: 630311936
Equivalent to 37 /8s, 145 /16s and 204 /24s
Percentage of available APNIC address space announced: 79.9

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: 148599
Total ARIN prefixes after maximum aggregation: 76616
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120560
Unique aggregates announced from the ARIN address blocks: 48566
ARIN Region origin ASes present in the Internet Routing Table: 14741
ARIN Prefixes per ASN: 8.18
ARIN Region origin ASes announcing only one prefix: 5608
ARIN Region transit ASes present in the Internet Routing Table: 1516
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: 803226888
Equivalent to 47 /8s, 224 /16s and 69 /24s
Percentage of available ARIN address space announced: 63.8

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: 94393
Total RIPE prefixes after maximum aggregation: 51369
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 85782
Unique aggregates announced from the RIPE address blocks: 54488
RIPE Region origin ASes present in the Internet Routing Table: 16134
RIPE Prefixes per ASN: 5.32
RIPE Region origin ASes announcing only one prefix: 7990
RIPE Region transit ASes present in the Internet Routing Table: 2489
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 20
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1150
Number of RIPE addresses announced to Internet: 492472524
Equivalent to 29 /8s, 90 /16s and 136 /24s
Percentage of available RIPE address space announced: 79.3

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: 36846
Total LACNIC prefixes after maximum aggregation: 7975
LACNIC Deaggregation factor: 4.62
Prefixes being announced from the LACNIC address blocks: 36229
Unique aggregates announced from the LACNIC address blocks: 18608
LACNIC Region origin ASes present in the Internet Routing Table: 1549
LACNIC Prefixes per ASN: 23.39
LACNIC Region origin ASes announcing only one prefix: 448
LACNIC Region transit ASes present in the Internet Routing Table: 282
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 373
Number of LACNIC addresses announced to Internet: 93145608
Equivalent to 5 /8s, 141 /16s and 74 /24s
Percentage of available LACNIC address space announced: 61.7

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: 8632
Total AfriNIC prefixes after maximum aggregation: 2054
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 6677
Unique aggregates announced from the AfriNIC address blocks: 2045
AfriNIC Region origin ASes present in the Internet Routing Table: 498
AfriNIC Prefixes per ASN: 13.41
AfriNIC Region origin ASes announcing only one prefix: 154
AfriNIC Region transit ASes present in the Internet Routing Table: 110
Average AfriNIC Region AS path length visible: 3.9
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: 27604224
Equivalent to 1 /8s, 165 /16s and 53 /24s
Percentage of available AfriNIC address space announced: 41.1

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 1951 11101 662 Korea Telecom (KIX)
17974 1648 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1624 303 87 TPG Internet Pty Ltd
4755 1530 377 169 Videsh Sanchar Nigam Ltd. Aut
7552 1394 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1095 81 495 Sify Limited
24560 965 343 218 Bharti Airtel Ltd.
18101 953 119 148 Reliance Infocom Ltd Internet
4808 929 1913 267 CNCGROUP IP network: China169

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 3489 3814 220 bellsouth.net, inc.
7029 2947 1046 212 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1851 680 121 AppliedTheory Corporation
4323 1613 1094 389 Time Warner Telecom
20115 1597 1546 624 Charter Communications
22773 1499 2909 103 Cox Communications, Inc.
30036 1429 257 671 Mediacom Communications Corp
19262 1386 4683 401 Verizon Global Networks
7018 1319 7063 865 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 1523 416 14 Corbina telecom
286 1092 810 198 KPNQwest Backbone AS
6830 647 1927 411 UPC Distribution Services
34984 601 112 188 Tellcom Iletisim Hizmetleri
20940 561 185 440 Akamai Technologies European
9116 541 326 31 Goldenlines main autonomous s
3292 532 2106 410 TDC Tele Danmark
3320 512 8168 389 Deutsche Telekom AG
12479 484 596 9 Uni2 Autonomous System
8866 461 133 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 1695 314 176 TVCABLE BOGOTA
8151 1492 2953 343 Uninet S.A. de C.V.
28573 1490 1044 70 Types of queries are: POCs, o
7303 1238 751 173 Telecom Argentina Stet-France
27947 615 72 87 Telconet S.A
22047 580 322 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 542 234 97 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
24863 776 146 34 LINKdotNET AS number
8452 685 446 12 TEDATA
15475 455 74 8 Nile Online
36992 283 415 21 Etisalat MISR
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
33776 212 13 14 Starcomms Nigeria Limited
12258 197 28 58 YEBO-AS

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 3489 3814 220 bellsouth.net, inc.
7029 2947 1046 212 Windstream Communications Inc
18566 2093 383 177 Covad Communications
4766 1951 11101 662 Korea Telecom (KIX)
1785 1851 680 121 AppliedTheory Corporation
10620 1695 314 176 TVCABLE BOGOTA
17974 1648 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1624 303 87 TPG Internet Pty Ltd
4323 1613 1094 389 Time Warner Telecom
20115 1597 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 2947 2735 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1851 1730 AppliedTheory Corporation
17974 1648 1612 PT TELEKOMUNIKASI INDONESIA
7545 1624 1537 TPG Internet Pty Ltd
10620 1695 1519 TVCABLE BOGOTA
8402 1523 1509 Corbina telecom
28573 1490 1420 Types of queries are: POCs, o
22773 1499 1396 Cox Communications, Inc.
7552 1394 1387 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 /8:20 /9:12 /10:27 /11:81 /12:236
/13:465 /14:811 /15:1456 /16:12151 /17:6345 /18:10408
/19:20519 /20:28825 /21:28219 /22:38261 /23:35970 /24:200127
/25:67 /26:85 /27:111 /28:285 /29:115 /30:527
/31:53 /32:485

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

ASN No of nets Total ann. Description
7029 2559 2947 Windstream Communications Inc
6389 2130 3489 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1590 1695 TVCABLE BOGOTA
8402 1500 1523 Corbina telecom
30036 1389 1429 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1058 1851 AppliedTheory Corporation
7011 1050 1167 Citizens Utilities
22773 959 1499 Cox Communications, Inc.

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

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

1:412 2:488 4:19 5:1 6:3 8:358
12:1955 13:1 14:553 15:11 16:3 17:7
20:9 23:63 24:1691 27:1027 31:710 32:120
33:2 34:2 36:4 38:765 39:1 40:108
41:2700 42:61 43:1 44:3 46:1055 47:3
49:295 50:456 52:13 55:7 56:2 57:59
58:930 59:490 60:360 61:1159 62:1106 63:1981
64:4095 65:2303 66:4358 67:2046 68:1354 69:3253
70:952 71:383 72:1845 73:1 74:2695 75:444
76:331 77:892 78:893 79:461 80:1137 81:844
82:528 83:523 84:623 85:1151 86:413 87:913
88:360 89:1614 90:235 91:4288 92:539 93:1446
94:1318 95:1110 96:432 97:285 98:803 99:37
101:242 103:495 106:1 107:95 108:84 109:1196
110:676 111:807 112:363 113:499 114:598 115:716
116:895 117:721 118:897 119:1266 120:354 121:689
122:1576 123:1029 124:1367 125:1353 128:248 129:187
130:178 131:636 132:155 133:21 134:228 135:54
136:212 137:146 138:285 139:133 140:494 141:250
142:387 143:403 144:489 145:65 146:474 147:229
148:684 149:263 150:163 151:192 152:449 153:172
154:7 155:390 156:208 157:359 158:157 159:493
160:330 161:215 162:371 163:174 164:514 165:386
166:542 167:443 168:824 169:147 170:825 171:87
172:4 173:1768 174:596 175:436 176:292 177:388
178:1126 180:1156 181:39 182:663 183:239 184:396
185:1 186:1406 187:778 188:982 189:1160 190:5179
192:5961 193:5071 194:3572 195:3127 196:1286 197:168
198:3628 199:4224 200:5536 201:1710 202:8565 203:8560
204:4276 205:2405 206:2622 207:2822 208:4042 209:3601
210:2745 211:1472 212:2055 213:1814 214:797 215:93
216:4956 217:1612 218:582 219:341 220:1260 221:520
222:328 223:280

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 20 Nov, 2011

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

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

BGP routing table entries examined: 382305
Prefixes after maximum aggregation: 166896
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 187837
Total ASes present in the Internet Routing Table: 39323
Prefixes per ASN: 9.72
Origin-only ASes present in the Internet Routing Table: 32407
Origin ASes announcing only one prefix: 15466
Transit ASes present in the Internet Routing Table: 5275
Transit-only ASes present in the Internet Routing Table: 134
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: 1733
Unregistered ASNs in the Routing Table: 896
Number of 32-bit ASNs allocated by the RIRs: 1971
Number of 32-bit ASNs visible in the Routing Table: 1641
Prefixes from 32-bit ASNs in the Routing Table: 3808
Special use prefixes present in the Routing Table: 3
Prefixes being announced from unallocated address space: 85
Number of addresses announced to Internet: 2490513024
Equivalent to 148 /8s, 114 /16s and 54 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
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: 161493

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

Prefixes being announced by APNIC Region ASes: 95303
Total APNIC prefixes after maximum aggregation: 31172
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 91754
Unique aggregates announced from the APNIC address blocks: 38445
APNIC Region origin ASes present in the Internet Routing Table: 4610
APNIC Prefixes per ASN: 19.90
APNIC Region origin ASes announcing only one prefix: 1272
APNIC Region transit ASes present in the Internet Routing Table: 712
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 110
Number of APNIC addresses announced to Internet: 630274656
Equivalent to 37 /8s, 145 /16s and 58 /24s
Percentage of available APNIC address space announced: 79.9

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

Prefixes being announced by ARIN Region ASes: 145790
Total ARIN prefixes after maximum aggregation: 74444
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118008
Unique aggregates announced from the ARIN address blocks: 48575
ARIN Region origin ASes present in the Internet Routing Table: 14733
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5616
ARIN Region transit ASes present in the Internet Routing Table: 1568
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: 803139520
Equivalent to 47 /8s, 222 /16s and 239 /24s
Percentage of available ARIN address space announced: 63.8

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

Prefixes being announced by RIPE Region ASes: 92388
Total RIPE prefixes after maximum aggregation: 51238
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 84665
Unique aggregates announced from the RIPE address blocks: 54559
RIPE Region origin ASes present in the Internet Routing Table: 16120
RIPE Prefixes per ASN: 5.25
RIPE Region origin ASes announcing only one prefix: 7984
RIPE Region transit ASes present in the Internet Routing Table: 2533
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: 1141
Number of RIPE addresses announced to Internet: 492191936
Equivalent to 29 /8s, 86 /16s and 64 /24s
Percentage of available RIPE address space announced: 79.3

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

Prefixes being announced by LACNIC Region ASes: 36219
Total LACNIC prefixes after maximum aggregation: 7926
LACNIC Deaggregation factor: 4.57
Prefixes being announced from the LACNIC address blocks: 35669
Unique aggregates announced from the LACNIC address blocks: 18595
LACNIC Region origin ASes present in the Internet Routing Table: 1547
LACNIC Prefixes per ASN: 23.06
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 283
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 21
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 374
Number of LACNIC addresses announced to Internet: 93097088
Equivalent to 5 /8s, 140 /16s and 140 /24s
Percentage of available LACNIC address space announced: 61.7

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: 8616
Total AfriNIC prefixes after maximum aggregation: 2043
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 6668
Unique aggregates announced from the AfriNIC address blocks: 2045
AfriNIC Region origin ASes present in the Internet Routing Table: 495
AfriNIC Prefixes per ASN: 13.47
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 109
Average AfriNIC Region AS path length visible: 4.6
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: 27670528
Equivalent to 1 /8s, 166 /16s and 56 /24s
Percentage of available AfriNIC address space announced: 41.2

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 2512 11105 969 Korea Telecom (KIX)
17974 1646 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1627 303 87 TPG Internet Pty Ltd
4755 1527 377 169 TATA Communications formerly
7552 1394 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
4808 1099 2073 311 CNCGROUP IP network: China169
9583 1095 81 495 Sify Limited
24560 965 343 218 Bharti Airtel Ltd., Telemedia
18101 952 119 148 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 3486 3814 219 bellsouth.net, inc.
7029 2907 1016 199 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1848 680 121 PaeTec Communications, Inc.
4323 1614 1078 389 Time Warner Telecom
20115 1598 1546 624 Charter Communications
22773 1499 2909 103 Cox Communications, Inc.
30036 1429 257 671 Mediacom Communications Corp
19262 1386 4683 401 Verizon Global Networks
7018 1310 7013 858 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 1542 416 14 Corbina telecom
6830 646 1927 411 UPC Distribution Services
34984 601 112 188 BILISIM TELEKOM
20940 554 183 436 Akamai Technologies European
3320 512 8168 389 Deutsche Telekom AG
12479 484 596 9 Uni2 Autonomous System
3292 480 2106 408 TDC Tele Danmark
8866 461 133 26 Bulgarian Telecommunication C
8551 415 366 45 Bezeq International
31148 409 22 114 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 1695 314 176 TVCABLE BOGOTA
28573 1501 1044 70 NET Servicos de Comunicao S.A
8151 1447 2972 345 UniNet S.A. de C.V.
7303 1238 751 173 Telecom Argentina Stet-France
27947 602 72 86 Telconet S.A
22047 580 322 17 VTR PUNTO NET S.A.
6503 555 434 68 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 539 234 96 Empresa Nacional de Telecomun
11172 529 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
24863 778 146 36 LINKdotNET AS number
8452 685 446 12 TEDATA
15475 444 74 8 Nile Online
36992 283 415 21 Etisalat MISR
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
33776 212 13 14 Starcomms Nigeria Limited
12258 196 28 57 Vodacom Internet Company

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 3486 3814 219 bellsouth.net, inc.
7029 2907 1016 199 Windstream Communications Inc
4766 2512 11105 969 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1848 680 121 PaeTec Communications, Inc.
10620 1695 314 176 TVCABLE BOGOTA
17974 1646 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1627 303 87 TPG Internet Pty Ltd
4323 1614 1078 389 Time Warner Telecom
20115 1598 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 2907 2708 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1848 1727 PaeTec Communications, Inc.
17974 1646 1610 PT TELEKOMUNIKASI INDONESIA
4766 2512 1543 Korea Telecom (KIX)
7545 1627 1540 TPG Internet Pty Ltd
8402 1542 1528 Corbina telecom
10620 1695 1519 TVCABLE BOGOTA
28573 1501 1431 NET Servicos de Comunicao S.A
22773 1499 1396 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
128.0.0.0/16 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 /14:806 /15:1425 /16:12010 /17:6084 /18:10122
/19:19994 /20:27657 /21:27844 /22:37902 /23:35496 /24:198683
/25:1153 /26:1360 /27:759 /28:161 /29:4 /30:0
/31:0 /32:5

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

ASN No of nets Total ann. Description
7029 2536 2907 Windstream Communications Inc
6389 2128 3486 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1590 1695 TVCABLE BOGOTA
8402 1518 1542 Corbina telecom
30036 1389 1429 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1058 1848 PaeTec Communications, Inc.
7011 1050 1167 Citizens Utilities
22773 959 1499 Cox Communications, Inc.

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

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

1:412 2:488 4:15 5:1 6:3 8:357
12:1953 13:1 14:551 15:11 16:3 17:7
20:9 23:63 24:1683 27:1027 31:702 32:65
33:2 34:2 36:4 38:764 39:1 40:108
41:2685 42:61 43:1 44:3 46:1052 47:3
49:295 50:454 52:13 55:7 56:2 57:49
58:928 59:490 60:360 61:1153 62:1095 63:1962
64:4075 65:2300 66:4331 67:2015 68:1170 69:3144
70:903 71:383 72:1815 74:2641 75:431 76:319
77:891 78:890 79:451 80:1130 81:839 82:514
83:518 84:621 85:1150 86:405 87:907 88:356
89:1597 90:235 91:4276 92:539 93:1445 94:1306
95:1108 96:428 97:285 98:796 99:37 101:242
103:495 106:1 107:95 108:81 109:1188 110:672
111:806 112:363 113:498 114:595 115:716 116:879
117:721 118:893 119:1269 120:354 121:669 122:1575
123:1028 124:1367 125:1352 128:247 129:184 130:176
131:634 132:155 133:21 134:227 135:54 136:212
137:146 138:285 139:122 140:494 141:250 142:386
143:402 144:489 145:65 146:472 147:219 148:630
149:263 150:163 151:192 152:449 153:172 154:7
155:390 156:208 157:358 158:157 159:493 160:325
161:215 162:371 163:174 164:513 165:369 166:541
167:443 168:823 169:146 170:824 171:87 172:4
173:1750 174:590 175:436 176:294 177:386 178:1116
180:1149 181:39 182:658 183:240 184:396 185:1
186:1400 187:765 188:980 189:1149 190:5174 192:5932
193:5045 194:3549 195:3110 196:1274 197:168 198:3616
199:4214 200:5531 201:1707 202:8532 203:8550 204:4266
205:2397 206:2591 207:2815 208:4029 209:3572 210:2741
211:1466 212:2014 213:1805 214:805 215:97 216:4916
217:1607 218:580 219:339 220:1253 221:520 222:327
223:280

End of report
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Friday, November 18, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sat 19 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: 385744
Prefixes after maximum aggregation: 168139
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 188007
Total ASes present in the Internet Routing Table: 39350
Prefixes per ASN: 9.80
Origin-only ASes present in the Internet Routing Table: 32536
Origin ASes announcing only one prefix: 15494
Transit ASes present in the Internet Routing Table: 5163
Transit-only ASes present in the Internet Routing Table: 129
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5561
Unregistered ASNs in the Routing Table: 906
Number of 32-bit ASNs allocated by the RIRs: 1966
Number of 32-bit ASNs visible in the Routing Table: 1651
Prefixes from 32-bit ASNs in the Routing Table: 3833
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 86
Number of addresses announced to Internet: 2491635236
Equivalent to 148 /8s, 131 /16s and 86 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
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: 161960

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

Prefixes being announced by APNIC Region ASes: 93113
Total APNIC prefixes after maximum aggregation: 30052
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 89595
Unique aggregates announced from the APNIC address blocks: 38395
APNIC Region origin ASes present in the Internet Routing Table: 4592
APNIC Prefixes per ASN: 19.51
APNIC Region origin ASes announcing only one prefix: 1279
APNIC Region transit ASes present in the Internet Routing Table: 703
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 110
Number of APNIC addresses announced to Internet: 630307328
Equivalent to 37 /8s, 145 /16s and 186 /24s
Percentage of available APNIC address space announced: 79.9

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

Prefixes being announced by ARIN Region ASes: 148732
Total ARIN prefixes after maximum aggregation: 76667
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120644
Unique aggregates announced from the ARIN address blocks: 48615
ARIN Region origin ASes present in the Internet Routing Table: 14755
ARIN Prefixes per ASN: 8.18
ARIN Region origin ASes announcing only one prefix: 5622
ARIN Region transit ASes present in the Internet Routing Table: 1516
Average ARIN Region AS path length visible: 3.6
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: 803375624
Equivalent to 47 /8s, 226 /16s and 138 /24s
Percentage of available ARIN address space announced: 63.8

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

Prefixes being announced by RIPE Region ASes: 94355
Total RIPE prefixes after maximum aggregation: 51343
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 85739
Unique aggregates announced from the RIPE address blocks: 54574
RIPE Region origin ASes present in the Internet Routing Table: 16134
RIPE Prefixes per ASN: 5.31
RIPE Region origin ASes announcing only one prefix: 7993
RIPE Region transit ASes present in the Internet Routing Table: 2496
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1152
Number of RIPE addresses announced to Internet: 492518860
Equivalent to 29 /8s, 91 /16s and 61 /24s
Percentage of available RIPE address space announced: 79.3

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

Prefixes being announced by LACNIC Region ASes: 36926
Total LACNIC prefixes after maximum aggregation: 7953
LACNIC Deaggregation factor: 4.64
Prefixes being announced from the LACNIC address blocks: 36287
Unique aggregates announced from the LACNIC address blocks: 18645
LACNIC Region origin ASes present in the Internet Routing Table: 1550
LACNIC Prefixes per ASN: 23.41
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 278
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 373
Number of LACNIC addresses announced to Internet: 93170952
Equivalent to 5 /8s, 141 /16s and 173 /24s
Percentage of available LACNIC address space announced: 61.7

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: 8618
Total AfriNIC prefixes after maximum aggregation: 2051
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 6685
Unique aggregates announced from the AfriNIC address blocks: 2049
AfriNIC Region origin ASes present in the Internet Routing Table: 496
AfriNIC Prefixes per ASN: 13.48
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 109
Average AfriNIC Region AS path length visible: 4.0
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: 27745280
Equivalent to 1 /8s, 167 /16s and 92 /24s
Percentage of available AfriNIC address space announced: 41.3

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 1944 11101 661 Korea Telecom (KIX)
17974 1649 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1624 303 87 TPG Internet Pty Ltd
4755 1525 377 167 Videsh Sanchar Nigam Ltd. Aut
7552 1394 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1094 80 494 Sify Limited
4808 969 1928 268 CNCGROUP IP network: China169
24560 965 343 218 Bharti Airtel Ltd.
18101 953 119 148 Reliance Infocom Ltd Internet

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 3540 3814 225 bellsouth.net, inc.
7029 2947 1042 212 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1849 680 122 AppliedTheory Corporation
4323 1613 1093 388 Time Warner Telecom
20115 1596 1546 624 Charter Communications
22773 1500 2909 103 Cox Communications, Inc.
30036 1427 256 669 Mediacom Communications Corp
19262 1387 4683 401 Verizon Global Networks
7018 1318 7063 864 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 1530 416 14 Corbina telecom
286 1091 810 197 KPNQwest Backbone AS
6830 647 1927 411 UPC Distribution Services
34984 601 112 188 Tellcom Iletisim Hizmetleri
20940 560 185 439 Akamai Technologies European
9116 541 326 31 Goldenlines main autonomous s
3292 532 2106 410 TDC Tele Danmark
3320 511 8168 388 Deutsche Telekom AG
12479 484 596 9 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 1706 316 157 TVCABLE BOGOTA
28573 1495 1044 70 Types of queries are: POCs, o
8151 1492 2953 345 Uninet S.A. de C.V.
7303 1238 751 173 Telecom Argentina Stet-France
27947 615 72 87 Telconet S.A
22047 580 322 17 Types of queries are: POCs, o
6503 568 434 70 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
10481 547 429 25 Prima S.A.
3816 539 234 96 COLOMBIA TELECOMUNICACIONES S

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

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

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 3540 3814 225 bellsouth.net, inc.
7029 2947 1042 212 Windstream Communications Inc
18566 2093 383 177 Covad Communications
4766 1944 11101 661 Korea Telecom (KIX)
1785 1849 680 122 AppliedTheory Corporation
10620 1706 316 157 TVCABLE BOGOTA
17974 1649 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1624 303 87 TPG Internet Pty Ltd
4323 1613 1093 388 Time Warner Telecom
20115 1596 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 2947 2735 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1849 1727 AppliedTheory Corporation
17974 1649 1613 PT TELEKOMUNIKASI INDONESIA
10620 1706 1549 TVCABLE BOGOTA
7545 1624 1537 TPG Internet Pty Ltd
8402 1530 1516 Corbina telecom
28573 1495 1425 Types of queries are: POCs, o
22773 1500 1397 Cox Communications, Inc.
7552 1394 1387 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)
-----------------------------------------------------------

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 /14:812 /15:1457 /16:12153 /17:6347 /18:10413
/19:20529 /20:28822 /21:28216 /22:38279 /23:35955 /24:200191
/25:67 /26:85 /27:110 /28:285 /29:117 /30:527
/31:53 /32:485

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

ASN No of nets Total ann. Description
7029 2559 2947 Windstream Communications Inc
6389 2181 3540 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1601 1706 TVCABLE BOGOTA
8402 1507 1530 Corbina telecom
30036 1387 1427 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1058 1849 AppliedTheory Corporation
7011 1050 1167 Citizens Utilities
22773 960 1500 Cox Communications, Inc.

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

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

1:411 2:487 4:19 5:1 6:3 8:356
12:1961 13:1 14:553 15:11 16:3 17:7
20:9 23:63 24:1696 27:1027 31:705 32:120
33:2 34:2 36:4 38:763 39:1 40:109
41:2700 42:61 43:1 44:3 46:1054 47:3
49:295 50:457 52:13 55:8 56:2 57:59
58:929 59:479 60:360 61:1149 62:1106 63:1985
64:4094 65:2304 66:4361 67:2031 68:1352 69:3255
70:953 71:384 72:1846 73:1 74:2696 75:442
76:332 77:893 78:893 79:449 80:1135 81:843
82:527 83:523 84:624 85:1153 86:413 87:910
88:361 89:1614 90:235 91:4285 92:540 93:1448
94:1310 95:1117 96:432 97:285 98:810 99:37
101:240 103:488 106:1 107:94 108:84 109:1195
110:675 111:806 112:363 113:497 114:598 115:713
116:895 117:721 118:898 119:1269 120:354 121:690
122:1577 123:1029 124:1367 125:1353 128:248 129:187
130:178 131:632 132:154 133:21 134:229 135:54
136:212 137:146 138:285 139:133 140:494 141:251
142:390 143:401 144:489 145:65 146:476 147:229
148:684 149:263 150:161 151:192 152:449 153:172
154:7 155:390 156:208 157:359 158:158 159:494
160:330 161:215 162:368 163:175 164:511 165:386
166:542 167:444 168:824 169:146 170:879 171:87
172:4 173:1766 174:598 175:432 176:296 177:393
178:1126 180:1155 181:39 182:661 183:238 184:395
185:1 186:1409 187:780 188:983 189:1159 190:5212
192:5962 193:5053 194:3571 195:3127 196:1273 197:167
198:3632 199:4226 200:5540 201:1706 202:8560 203:8557
204:4318 205:2403 206:2623 207:2825 208:4044 209:3605
210:2744 211:1472 212:2053 213:1815 214:807 215:97
216:4960 217:1612 218:579 219:340 220:1256 221:520
222:328 223:278

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 Sat 19 Nov, 2011

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

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

BGP routing table entries examined: 382518
Prefixes after maximum aggregation: 166913
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 187922
Total ASes present in the Internet Routing Table: 39344
Prefixes per ASN: 9.72
Origin-only ASes present in the Internet Routing Table: 32426
Origin ASes announcing only one prefix: 15480
Transit ASes present in the Internet Routing Table: 5275
Transit-only ASes present in the Internet Routing Table: 133
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: 1738
Unregistered ASNs in the Routing Table: 898
Number of 32-bit ASNs allocated by the RIRs: 1966
Number of 32-bit ASNs visible in the Routing Table: 1643
Prefixes from 32-bit ASNs in the Routing Table: 3811
Special use prefixes present in the Routing Table: 3
Prefixes being announced from unallocated address space: 85
Number of addresses announced to Internet: 2491183488
Equivalent to 148 /8s, 124 /16s and 113 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
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: 161662

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

Prefixes being announced by APNIC Region ASes: 95270
Total APNIC prefixes after maximum aggregation: 31163
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 91712
Unique aggregates announced from the APNIC address blocks: 38427
APNIC Region origin ASes present in the Internet Routing Table: 4610
APNIC Prefixes per ASN: 19.89
APNIC Region origin ASes announcing only one prefix: 1269
APNIC Region transit ASes present in the Internet Routing Table: 709
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: 110
Number of APNIC addresses announced to Internet: 630281568
Equivalent to 37 /8s, 145 /16s and 85 /24s
Percentage of available APNIC address space announced: 79.9

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

Prefixes being announced by ARIN Region ASes: 145957
Total ARIN prefixes after maximum aggregation: 74487
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118097
Unique aggregates announced from the ARIN address blocks: 48616
ARIN Region origin ASes present in the Internet Routing Table: 14749
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5633
ARIN Region transit ASes present in the Internet Routing Table: 1567
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: 13
Number of ARIN addresses announced to Internet: 803282880
Equivalent to 47 /8s, 225 /16s and 31 /24s
Percentage of available ARIN address space announced: 63.8

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

Prefixes being announced by RIPE Region ASes: 92363
Total RIPE prefixes after maximum aggregation: 51229
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 84633
Unique aggregates announced from the RIPE address blocks: 54540
RIPE Region origin ASes present in the Internet Routing Table: 16120
RIPE Prefixes per ASN: 5.25
RIPE Region origin ASes announcing only one prefix: 7983
RIPE Region transit ASes present in the Internet Routing Table: 2536
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: 1143
Number of RIPE addresses announced to Internet: 492243904
Equivalent to 29 /8s, 87 /16s and 11 /24s
Percentage of available RIPE address space announced: 79.3

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

Prefixes being announced by LACNIC Region ASes: 36318
Total LACNIC prefixes after maximum aggregation: 7909
LACNIC Deaggregation factor: 4.59
Prefixes being announced from the LACNIC address blocks: 35776
Unique aggregates announced from the LACNIC address blocks: 18643
LACNIC Region origin ASes present in the Internet Routing Table: 1547
LACNIC Prefixes per ASN: 23.13
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 283
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: 373
Number of LACNIC addresses announced to Internet: 93166208
Equivalent to 5 /8s, 141 /16s and 154 /24s
Percentage of available LACNIC address space announced: 61.7

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: 8616
Total AfriNIC prefixes after maximum aggregation: 2052
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 6675
Unique aggregates announced from the AfriNIC address blocks: 2049
AfriNIC Region origin ASes present in the Internet Routing Table: 499
AfriNIC Prefixes per ASN: 13.38
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 108
Average AfriNIC Region AS path length visible: 4.6
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: 27745280
Equivalent to 1 /8s, 167 /16s and 92 /24s
Percentage of available AfriNIC address space announced: 41.3

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 2506 11072 963 Korea Telecom (KIX)
17974 1647 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1627 303 87 TPG Internet Pty Ltd
4755 1528 378 169 TATA Communications formerly
7552 1394 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
4808 1097 2073 310 CNCGROUP IP network: China169
9583 1094 80 494 Sify Limited
24560 965 343 218 Bharti Airtel Ltd., Telemedia
18101 952 119 148 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 3543 3814 219 bellsouth.net, inc.
7029 2906 1016 199 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1848 680 121 PaeTec Communications, Inc.
4323 1613 1077 387 Time Warner Telecom
20115 1596 1546 624 Charter Communications
22773 1500 2909 103 Cox Communications, Inc.
30036 1428 257 670 Mediacom Communications Corp
19262 1387 4683 401 Verizon Global Networks
7018 1312 7029 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 1548 416 14 Corbina telecom
6830 646 1927 411 UPC Distribution Services
34984 601 112 188 BILISIM TELEKOM
20940 553 182 435 Akamai Technologies European
3320 512 8168 389 Deutsche Telekom AG
12479 484 596 9 Uni2 Autonomous System
3292 480 2106 408 TDC Tele Danmark
8866 462 133 26 Bulgarian Telecommunication C
8551 415 366 45 Bezeq International
31148 409 22 114 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 1706 316 157 TVCABLE BOGOTA
28573 1500 1044 70 NET Servicos de Comunicao S.A
8151 1448 2972 345 UniNet S.A. de C.V.
7303 1238 751 173 Telecom Argentina Stet-France
27947 602 72 86 Telconet S.A
22047 580 322 17 VTR PUNTO NET S.A.
6503 557 434 68 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 540 234 96 Empresa Nacional de Telecomun
11172 529 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
------------------------------------------

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 3543 3814 219 bellsouth.net, inc.
7029 2906 1016 199 Windstream Communications Inc
4766 2506 11072 963 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1848 680 121 PaeTec Communications, Inc.
10620 1706 316 157 TVCABLE BOGOTA
17974 1647 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1627 303 87 TPG Internet Pty Ltd
4323 1613 1077 387 Time Warner Telecom
20115 1596 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 2906 2707 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1848 1727 PaeTec Communications, Inc.
17974 1647 1611 PT TELEKOMUNIKASI INDONESIA
10620 1706 1549 TVCABLE BOGOTA
4766 2506 1543 Korea Telecom (KIX)
7545 1627 1540 TPG Internet Pty Ltd
8402 1548 1534 Corbina telecom
28573 1500 1430 NET Servicos de Comunicao S.A
22773 1500 1397 Cox Communications, Inc.

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

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

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
128.0.0.0/16 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 /14:807 /15:1426 /16:12011 /17:6087 /18:10125
/19:20002 /20:27673 /21:27853 /22:37927 /23:35487 /24:198837
/25:1153 /26:1361 /27:758 /28:162 /29:4 /30:0
/31:0 /32:5

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

ASN No of nets Total ann. Description
7029 2535 2906 Windstream Communications Inc
6389 2185 3543 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1601 1706 TVCABLE BOGOTA
8402 1524 1548 Corbina telecom
30036 1388 1428 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1058 1848 PaeTec Communications, Inc.
7011 1050 1167 Citizens Utilities
22773 960 1500 Cox Communications, Inc.

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

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

1:411 2:487 4:15 5:1 6:3 8:355
12:1959 13:1 14:551 15:11 16:3 17:7
20:9 23:63 24:1688 27:1027 31:697 32:65
33:2 34:2 36:4 38:762 39:1 40:109
41:2689 42:61 43:1 44:3 46:1051 47:3
49:295 50:455 52:13 55:8 56:2 57:49
58:927 59:479 60:360 61:1143 62:1095 63:1965
64:4075 65:2301 66:4334 67:2000 68:1170 69:3146
70:904 71:384 72:1816 74:2640 75:429 76:320
77:892 78:891 79:439 80:1123 81:838 82:513
83:518 84:622 85:1150 86:405 87:907 88:357
89:1597 90:235 91:4274 92:539 93:1446 94:1306
95:1115 96:428 97:285 98:805 99:37 101:240
103:489 106:1 107:94 108:81 109:1188 110:674
111:805 112:363 113:497 114:595 115:715 116:879
117:720 118:894 119:1271 120:353 121:670 122:1576
123:1028 124:1367 125:1352 128:247 129:184 130:176
131:630 132:155 133:21 134:228 135:54 136:212
137:146 138:285 139:122 140:492 141:251 142:389
143:400 144:489 145:65 146:470 147:219 148:632
149:263 150:161 151:192 152:449 153:172 154:7
155:390 156:208 157:358 158:158 159:494 160:330
161:215 162:368 163:175 164:511 165:369 166:542
167:444 168:823 169:145 170:879 171:87 172:4
173:1745 174:592 175:432 176:297 177:393 178:1117
180:1147 181:39 182:656 183:239 184:394 185:1
186:1409 187:779 188:980 189:1159 190:5209 192:5933
193:5038 194:3544 195:3108 196:1276 197:166 198:3623
199:4216 200:5533 201:1704 202:8546 203:8549 204:4307
205:2398 206:2592 207:2820 208:4030 209:3577 210:2740
211:1465 212:2010 213:1807 214:815 215:97 216:4923
217:1601 218:577 219:339 220:1253 221:520 222:327
223:279

End of report
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