BGP Routing: 2012-03-18

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, March 24, 2012

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sun 25 Mar, 2012

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: 407569
Prefixes after maximum aggregation: 172777
Deaggregation factor: 2.36
Unique aggregates announced to Internet: 195565
Total ASes present in the Internet Routing Table: 40511
Prefixes per ASN: 10.06
Origin-only ASes present in the Internet Routing Table: 32926
Origin ASes announcing only one prefix: 15504
Transit ASes present in the Internet Routing Table: 5450
Transit-only ASes present in the Internet Routing Table: 141
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 28
Max AS path prepend of ASN (19202) 25
Prefixes from unregistered ASNs in the Routing Table: 5747
Unregistered ASNs in the Routing Table: 261
Number of 32-bit ASNs allocated by the RIRs: 2330
Number of 32-bit ASNs visible in the Routing Table: 2135
Prefixes from 32-bit ASNs in the Routing Table: 5207
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 909
Number of addresses announced to Internet: 2528128850
Equivalent to 150 /8s, 176 /16s and 47 /24s
Percentage of available address space announced: 68.2
Percentage of allocated address space announced: 68.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 172638

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

Prefixes being announced by APNIC Region ASes: 96560
Total APNIC prefixes after maximum aggregation: 30954
APNIC Deaggregation factor: 3.12
Prefixes being announced from the APNIC address blocks: 93034
Unique aggregates announced from the APNIC address blocks: 39399
APNIC Region origin ASes present in the Internet Routing Table: 4658
APNIC Prefixes per ASN: 19.97
APNIC Region origin ASes announcing only one prefix: 1248
APNIC Region transit ASes present in the Internet Routing Table: 741
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 167
Number of APNIC addresses announced to Internet: 641374976
Equivalent to 38 /8s, 58 /16s and 155 /24s
Percentage of available APNIC address space announced: 81.3

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: 153241
Total ARIN prefixes after maximum aggregation: 78059
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 124370
Unique aggregates announced from the ARIN address blocks: 49930
ARIN Region origin ASes present in the Internet Routing Table: 14964
ARIN Prefixes per ASN: 8.31
ARIN Region origin ASes announcing only one prefix: 5688
ARIN Region transit ASes present in the Internet Routing Table: 1570
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 28
Number of ARIN region 32-bit ASNs visible in the Routing Table: 16
Number of ARIN addresses announced to Internet: 805267712
Equivalent to 47 /8s, 255 /16s and 105 /24s
Percentage of available ARIN address space announced: 64.0

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: 103494
Total RIPE prefixes after maximum aggregation: 53303
RIPE Deaggregation factor: 1.94
Prefixes being announced from the RIPE address blocks: 93984
Unique aggregates announced from the RIPE address blocks: 57181
RIPE Region origin ASes present in the Internet Routing Table: 16370
RIPE Prefixes per ASN: 5.74
RIPE Region origin ASes announcing only one prefix: 7976
RIPE Region transit ASes present in the Internet Routing Table: 2642
Average RIPE Region AS path length visible: 4.9
Max RIPE Region AS path length visible: 23
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1453
Number of RIPE addresses announced to Internet: 502257288
Equivalent to 29 /8s, 239 /16s and 214 /24s
Percentage of available RIPE address space announced: 80.9

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: 39771
Total LACNIC prefixes after maximum aggregation: 8131
LACNIC Deaggregation factor: 4.89
Prefixes being announced from the LACNIC address blocks: 39472
Unique aggregates announced from the LACNIC address blocks: 19713
LACNIC Region origin ASes present in the Internet Routing Table: 1568
LACNIC Prefixes per ASN: 25.17
LACNIC Region origin ASes announcing only one prefix: 434
LACNIC Region transit ASes present in the Internet Routing Table: 299
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 495
Number of LACNIC addresses announced to Internet: 98605320
Equivalent to 5 /8s, 224 /16s and 153 /24s
Percentage of available LACNIC address space announced: 65.3

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: 8912
Total AfriNIC prefixes after maximum aggregation: 2126
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6978
Unique aggregates announced from the AfriNIC address blocks: 2182
AfriNIC Region origin ASes present in the Internet Routing Table: 520
AfriNIC Prefixes per ASN: 13.42
AfriNIC Region origin ASes announcing only one prefix: 158
AfriNIC Region transit ASes present in the Internet Routing Table: 118
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: 31509249
Equivalent to 1 /8s, 224 /16s and 203 /24s
Percentage of available AfriNIC address space announced: 47.0

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 1924 11101 675 Korea Telecom (KIX)
17974 1760 503 64 PT TELEKOMUNIKASI INDONESIA
7545 1652 303 89 TPG Internet Pty Ltd
4755 1574 386 160 Videsh Sanchar Nigam Ltd. Aut
9583 1241 95 543 Sify Limited
9829 1208 1025 29 BSNL National Internet Backbo
7552 1167 1062 11 Vietel Corporation
24560 1014 384 166 Bharti Airtel Ltd.
18101 947 130 159 Reliance Infocom Ltd Internet
4808 923 1874 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
7029 3374 990 155 Windstream Communications Inc
6389 3371 3807 196 bellsouth.net, inc.
4323 2956 1074 377 Time Warner Telecom
18566 2093 383 179 Covad Communications
1785 1882 680 128 AppliedTheory Corporation
20115 1635 1559 627 Charter Communications
22773 1547 2910 111 Cox Communications, Inc.
30036 1402 253 744 Mediacom Communications Corp
7018 1282 13743 835 AT&T WorldNet Services
11492 1165 212 413 Cable One

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 1724 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
286 1067 853 198 KPNQwest Backbone AS
15557 1034 2247 55 LDCOM NETWORKS
31148 672 37 9 FreeNet ISP
34984 666 188 174 Tellcom Iletisim Hizmetleri
12479 645 654 56 Uni2 Autonomous System
6830 642 1943 413 UPC Distribution Services
20940 626 205 492 Akamai Technologies European
8551 602 360 81 Bezeq International

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 1807 329 130 TVCABLE BOGOTA
28573 1727 1099 60 Types of queries are: POCs, o
8151 1536 3000 335 Uninet S.A. de C.V.
7303 1351 826 190 Telecom Argentina Stet-France
26615 901 684 29 Types of queries are: POCs, o
27947 689 69 111 Telconet S.A
11172 636 91 73 Alestra
22047 584 326 15 Types of queries are: POCs, o
6503 568 418 66 AVANTEL, S.A.
3816 562 239 96 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 1261 958 13 TEDATA
24863 842 274 35 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 271 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 YEBO-AS
24835 178 80 8 RAYA Telecom - Egypt
33776 168 12 20 Starcomms Nigeria Limited
16637 161 664 84 Johnnic e-Ventures
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
7029 3374 990 155 Windstream Communications Inc
6389 3371 3807 196 bellsouth.net, inc.
4323 2956 1074 377 Time Warner Telecom
18566 2093 383 179 Covad Communications
4766 1924 11101 675 Korea Telecom (KIX)
1785 1882 680 128 AppliedTheory Corporation
10620 1807 329 130 TVCABLE BOGOTA
17974 1760 503 64 PT TELEKOMUNIKASI INDONESIA
28573 1727 1099 60 Types of queries are: POCs, o
8402 1724 544 16 Corbina telecom

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

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

ASN No of nets Net Savings Description
6389 3371 3175 bellsouth.net, inc.
4323 2956 2579 Time Warner Telecom
18566 2093 1914 Covad Communications
1785 1882 1754 AppliedTheory Corporation
8402 1724 1708 Corbina telecom
17974 1760 1696 PT TELEKOMUNIKASI INDONESIA
10620 1807 1677 TVCABLE BOGOTA
28573 1727 1667 Types of queries are: POCs, o
7545 1652 1563 TPG Internet Pty Ltd
22773 1547 1436 Cox Communications, Inc.

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

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

Bad AS Designation Network Transit AS Description
23456 UNALLOCATED 8.14.101.0/24 6461 AboveNet Communicati
54439 UNALLOCATED 8.25.174.0/24 3356 Level 3 Communicatio
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 12.45.103.0/24 209 Qwest
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,

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

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

Prefix Origin AS Description
10.29.245.1/32 286 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
10.29.245.27/32 286 KPNQwest Backbone AS

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

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

Network Origin AS Description
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
23.27.0.0/20 54500 EGIHosting
23.27.16.0/20 54500 EGIHosting

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 /10:28 /11:81 /12:234
/13:458 /14:829 /15:1509 /16:12328 /17:6520 /18:10859
/19:21092 /20:29896 /21:30056 /22:40581 /23:37995 /24:213442
/25:68 /26:76 /27:110 /28:279 /29:105 /30:509
/31:20 /32:462

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

ASN No of nets Total ann. Description
7029 3034 3374 Windstream Communications Inc
6389 2088 3371 bellsouth.net, inc.
18566 2042 2093 Covad Communications
4323 1790 2956 Time Warner Telecom
10620 1704 1807 TVCABLE BOGOTA
8402 1701 1724 Corbina telecom
30036 1350 1402 Mediacom Communications Corp
11492 1128 1165 Cable One
8452 1071 1261 TEDATA
1785 1064 1882 AppliedTheory Corporation

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

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

1:535 2:752 4:18 6:3 8:393 12:1972
13:1 14:602 15:12 16:3 17:7 20:8
23:147 24:1762 27:1251 31:965 32:124 33:2
34:2 36:8 37:290 38:787 39:4 40:120
41:3041 42:130 44:3 46:1462 47:3 49:347
50:642 52:13 54:6 55:10 56:3 57:44
58:964 59:493 60:278 61:1211 62:984 63:2008
64:4367 65:2277 66:4854 67:2045 68:1331 69:3301
70:948 71:438 72:1829 73:1 74:2763 75:504
76:332 77:968 78:985 79:513 80:1239 81:914
82:672 83:555 84:626 85:1195 86:734 87:918
88:346 89:1624 90:296 91:4644 92:521 93:1460
94:1461 95:1162 96:378 97:386 98:827 99:37
100:6 101:157 103:926 106:64 107:178 108:212
109:1562 110:762 111:902 112:445 113:564 114:634
115:782 116:920 117:724 118:920 119:1187 120:339
121:719 122:1662 123:1100 124:1367 125:1260 128:557
129:193 130:263 131:597 132:173 133:21 134:244
135:63 136:212 137:194 138:351 139:155 140:493
141:240 142:389 143:409 144:498 145:69 146:492
147:253 148:757 149:297 150:156 151:174 152:459
153:171 154:7 155:445 156:213 157:378 158:164
159:523 160:326 161:249 162:343 163:186 164:546
165:411 166:560 167:463 168:860 169:149 170:845
171:124 172:2 173:1854 174:729 175:447 176:463
177:592 178:1298 180:1171 181:73 182:763 183:277
184:447 185:1 186:2131 187:860 188:1148 189:1185
190:5570 192:6019 193:5624 194:4597 195:3688 196:1297
197:175 198:3637 199:4485 200:5772 201:1661 202:8475
203:8621 204:4352 205:2475 206:2827 207:2843 208:4078
209:3721 210:2783 211:1480 212:2032 213:1917 214:861
215:108 216:5106 217:1538 218:543 219:345 220:1237
221:552 222:330 223:327

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 25 Mar, 2012

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

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

BGP routing table entries examined: 396010
Prefixes after maximum aggregation: 169391
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 195371
Total ASes present in the Internet Routing Table: 38211
Prefixes per ASN: 10.36
Origin-only ASes present in the Internet Routing Table: 32955
Origin ASes announcing only one prefix: 15501
Transit ASes present in the Internet Routing Table: 5256
Transit-only ASes present in the Internet Routing Table: 122
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 26
Max AS path prepend of ASN (51742) 24
Prefixes from unregistered ASNs in the Routing Table: 1344
Unregistered ASNs in the Routing Table: 321
Number of 32-bit ASNs allocated by the RIRs: 2330
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 5158
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 901
Number of addresses announced to Internet: 2545202688
Equivalent to 151 /8s, 180 /16s and 182 /24s
Percentage of available address space announced: 68.7
Percentage of allocated address space announced: 68.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 167034

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

Prefixes being announced by APNIC Region ASes: 92900
Total APNIC prefixes after maximum aggregation: 30647
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 90300
Unique aggregates announced from the APNIC address blocks: 39432
APNIC Region origin ASes present in the Internet Routing Table: 4630
APNIC Prefixes per ASN: 19.50
APNIC Region origin ASes announcing only one prefix: 1257
APNIC Region transit ASes present in the Internet Routing Table: 698
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 17
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 641170688
Equivalent to 38 /8s, 55 /16s and 125 /24s
Percentage of available APNIC address space announced: 81.3

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

Prefixes being announced by ARIN Region ASes: 147819
Total ARIN prefixes after maximum aggregation: 75327
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119470
Unique aggregates announced from the ARIN address blocks: 49872
ARIN Region origin ASes present in the Internet Routing Table: 14872
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5667
ARIN Region transit ASes present in the Internet Routing Table: 1503
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 16
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 805125376
Equivalent to 47 /8s, 253 /16s and 61 /24s
Percentage of available ARIN address space announced: 64.0

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

Prefixes being announced by RIPE Region ASes: 101802
Total RIPE prefixes after maximum aggregation: 53087
RIPE Deaggregation factor: 1.92
Prefixes being announced from the RIPE address blocks: 93224
Unique aggregates announced from the RIPE address blocks: 57145
RIPE Region origin ASes present in the Internet Routing Table: 16354
RIPE Prefixes per ASN: 5.70
RIPE Region origin ASes announcing only one prefix: 7981
RIPE Region transit ASes present in the Internet Routing Table: 2584
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 502125824
Equivalent to 29 /8s, 237 /16s and 213 /24s
Percentage of available RIPE address space announced: 80.9

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

Prefixes being announced by LACNIC Region ASes: 38515
Total LACNIC prefixes after maximum aggregation: 8021
LACNIC Deaggregation factor: 4.80
Prefixes being announced from the LACNIC address blocks: 38479
Unique aggregates announced from the LACNIC address blocks: 19770
LACNIC Region origin ASes present in the Internet Routing Table: 1562
LACNIC Prefixes per ASN: 24.63
LACNIC Region origin ASes announcing only one prefix: 434
LACNIC Region transit ASes present in the Internet Routing Table: 288
Average LACNIC Region AS path length visible: 3.9
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 98563840
Equivalent to 5 /8s, 223 /16s and 247 /24s
Percentage of available LACNIC address space announced: 65.3

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: 8845
Total AfriNIC prefixes after maximum aggregation: 2113
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6938
Unique aggregates announced from the AfriNIC address blocks: 2179
AfriNIC Region origin ASes present in the Internet Routing Table: 521
AfriNIC Prefixes per ASN: 13.32
AfriNIC Region origin ASes announcing only one prefix: 162
AfriNIC Region transit ASes present in the Internet Routing Table: 115
Average AfriNIC Region AS path length visible: 3.5
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: 31514624
Equivalent to 1 /8s, 224 /16s and 224 /24s
Percentage of available AfriNIC address space announced: 47.0

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 1928 11106 678 Korea Telecom (KIX)
17974 1676 502 63 PT Telekomunikasi Indonesia
7545 1653 303 90 TPG Internet Pty Ltd
4755 1552 385 159 TATA Communications formerly
9583 1234 94 539 Sify Limited
9829 1208 1025 29 National Internet Backbone
7552 1110 1062 11 Vietel Corporation
24560 1012 384 166 Bharti Airtel Ltd., Telemedia
4808 982 1945 281 CNCGROUP IP network China169
18101 949 131 160 Reliance Infocom Ltd Internet

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
7029 3407 1016 168 Windstream Communications Inc
6389 3372 3807 197 BellSouth.net Inc.
18566 2094 383 179 Covad Communications Co.
1785 1888 680 128 PaeTec Communications, Inc.
20115 1633 1559 626 Charter Communications
4323 1600 1076 382 tw telecom holdings, inc.
22773 1546 2910 111 Cox Communications Inc.
30036 1401 253 743 Mediacom Communications Corp
7018 1289 9809 842 AT&T Services, Inc.
11492 1164 212 415 CABLE ONE, 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 1673 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
15557 1034 2247 55 NEUF CEGETEL (formerly LDCOM
31148 672 37 9 FreeNet ISP
34984 665 188 173 BILISIM TELEKOM
6830 641 1943 412 UPC Broadband
12479 641 654 56 France Telecom Espana SA
20940 616 200 484 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 525 8441 398 Deutsche Telekom AG

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 1807 329 130 Types of queries are: POCs, o
28573 1727 1099 60 Types of queries are: POCs, o
7303 1351 826 190 Telecom Argentina S.A.
8151 1349 2998 345 Uninet S.A. de C.V.
26615 901 684 29 Tim Celular S.A.
27947 664 69 111 Telconet S.A
11172 638 107 74 Alestra, S. de R.L. de C.V.
22047 584 326 15 Types of queries are: POCs, o
3816 565 239 96 Types of queries are: POCs, o
7738 550 1050 31 Telecomunicacoes da Bahia S.A

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 1261 958 13 TEDATA
24863 841 274 34 LINKdotNET AS number
6713 490 649 18 Itissalat Al-MAGHRIB
3741 271 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 Vodacom Internet Company
24835 178 80 8 RAYA Telecom - Egypt
33776 168 12 20 Starcomms Nigeria Limited
16637 161 664 84 MTN Network Solutions
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
7029 3407 1016 168 Windstream Communications Inc
6389 3372 3807 197 BellSouth.net Inc.
18566 2094 383 179 Covad Communications Co.
4766 1928 11106 678 Korea Telecom (KIX)
1785 1888 680 128 PaeTec Communications, Inc.
10620 1807 329 130 Types of queries are: POCs, o
28573 1727 1099 60 Types of queries are: POCs, o
17974 1676 502 63 PT Telekomunikasi Indonesia
8402 1673 544 16 Corbina telecom
7545 1653 303 90 TPG Internet Pty Ltd

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

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

ASN No of nets Net Savings Description
6389 3372 3175 BellSouth.net Inc.
18566 2094 1915 Covad Communications Co.
1785 1888 1760 PaeTec Communications, Inc.
10620 1807 1677 Types of queries are: POCs, o
28573 1727 1667 Types of queries are: POCs, o
8402 1673 1657 Corbina telecom
17974 1676 1613 PT Telekomunikasi Indonesia
7545 1653 1563 TPG Internet Pty Ltd
22773 1546 1435 Cox Communications Inc.
2118 1427 1414 EUnet/RELCOM Autonomous Syste

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

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

Bad AS Designation Network Transit AS Description
54439 UNALLOCATED 8.25.174.0/24 3356 Level 3 Communicatio
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.

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 /10:28 /11:81 /12:235
/13:458 /14:822 /15:1476 /16:12124 /17:6235 /18:10379
/19:20539 /20:28568 /21:29319 /22:39667 /23:37094 /24:208394
/25:11 /26:20 /27:20 /28:154 /29:143 /30:68
/31:0 /32:143

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

ASN No of nets Total ann. Description
7029 3050 3407 Windstream Communications Inc
6389 2088 3372 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1704 1807 Types of queries are: POCs, o
8402 1650 1673 Corbina telecom
30036 1349 1401 Mediacom Communications Corp
11492 1127 1164 CABLE ONE, INC.
8452 1071 1261 TEDATA
1785 1067 1888 PaeTec Communications, Inc.
7011 1049 1163 Frontier Communications of Am

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

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

1:529 2:712 4:14 6:3 8:391 12:1969
13:1 14:597 15:12 16:3 17:7 20:8
23:147 24:1748 27:1247 31:962 32:57 33:2
34:2 36:8 37:288 38:774 40:120 41:3025
42:129 44:3 46:1455 47:3 49:339 50:533
52:13 54:6 55:8 56:3 57:33 58:912
59:485 60:274 61:1075 62:973 63:1977 64:4172
65:2270 66:4494 67:2006 68:1145 69:3184 70:901
71:438 72:1802 74:2595 75:491 76:320 77:963
78:978 79:499 80:1234 81:905 82:664 83:551
84:615 85:1192 86:734 87:917 88:343 89:1616
90:296 91:4632 92:518 93:1456 94:1453 95:1157
96:370 97:316 98:825 99:37 100:6 101:153
103:903 106:63 107:178 108:207 109:1555 110:736
111:900 112:431 113:546 114:621 115:759 116:884
117:704 118:903 119:1184 120:335 121:670 122:1621
123:1083 124:1296 125:1255 128:522 129:183 130:255
131:593 132:161 133:21 134:232 135:63 136:210
137:191 138:351 139:142 140:468 141:239 142:370
143:396 144:494 145:69 146:486 147:243 148:701
149:296 150:149 151:175 152:457 153:171 154:6
155:442 156:210 157:331 158:164 159:450 160:325
161:231 162:340 163:176 164:542 165:392 166:559
167:463 168:803 169:147 170:844 171:124 172:2
173:1716 174:612 175:421 176:463 177:591 178:1296
180:1113 181:73 182:744 183:277 184:441 185:1
186:2124 187:855 188:1148 189:1178 190:5544 192:5950
193:5603 194:4561 195:3637 196:1267 197:176 198:3572
199:4426 200:5660 201:1655 202:8199 203:8490 204:4262
205:2452 206:2650 207:2733 208:4042 209:3585 210:2682
211:1443 212:1989 213:1907 214:842 215:103 216:5042
217:1534 218:523 219:323 220:1226 221:535 222:297
223:313

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 25 Mar, 2012

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

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

BGP routing table entries examined: 404122
Prefixes after maximum aggregation: 171460
Deaggregation factor: 2.36
Unique aggregates announced to Internet: 195450
Total ASes present in the Internet Routing Table: 40475
Prefixes per ASN: 9.98
Origin-only ASes present in the Internet Routing Table: 32922
Origin ASes announcing only one prefix: 15477
Transit ASes present in the Internet Routing Table: 5432
Transit-only ASes present in the Internet Routing Table: 143
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 32
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 462
Unregistered ASNs in the Routing Table: 228
Number of 32-bit ASNs allocated by the RIRs: 2330
Number of 32-bit ASNs visible in the Routing Table: 2121
Prefixes from 32-bit ASNs in the Routing Table: 5192
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 901
Number of addresses announced to Internet: 2527483024
Equivalent to 150 /8s, 166 /16s and 84 /24s
Percentage of available address space announced: 68.2
Percentage of allocated address space announced: 68.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 172647

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

Prefixes being announced by APNIC Region ASes: 98519
Total APNIC prefixes after maximum aggregation: 32037
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 94917
Unique aggregates announced from the APNIC address blocks: 39417
APNIC Region origin ASes present in the Internet Routing Table: 4674
APNIC Prefixes per ASN: 20.31
APNIC Region origin ASes announcing only one prefix: 1236
APNIC Region transit ASes present in the Internet Routing Table: 730
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 167
Number of APNIC addresses announced to Internet: 641283424
Equivalent to 38 /8s, 57 /16s and 53 /24s
Percentage of available APNIC address space announced: 81.3

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

Prefixes being announced by ARIN Region ASes: 150529
Total ARIN prefixes after maximum aggregation: 75864
ARIN Deaggregation factor: 1.98
Prefixes being announced from the ARIN address blocks: 121852
Unique aggregates announced from the ARIN address blocks: 49906
ARIN Region origin ASes present in the Internet Routing Table: 14934
ARIN Prefixes per ASN: 8.16
ARIN Region origin ASes announcing only one prefix: 5676
ARIN Region transit ASes present in the Internet Routing Table: 1575
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 16
Number of ARIN addresses announced to Internet: 805165824
Equivalent to 47 /8s, 253 /16s and 219 /24s
Percentage of available ARIN address space announced: 64.0

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

Prefixes being announced by RIPE Region ASes: 101456
Total RIPE prefixes after maximum aggregation: 53095
RIPE Deaggregation factor: 1.91
Prefixes being announced from the RIPE address blocks: 92820
Unique aggregates announced from the RIPE address blocks: 57150
RIPE Region origin ASes present in the Internet Routing Table: 16359
RIPE Prefixes per ASN: 5.67
RIPE Region origin ASes announcing only one prefix: 7973
RIPE Region transit ASes present in the Internet Routing Table: 2632
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1442
Number of RIPE addresses announced to Internet: 502113032
Equivalent to 29 /8s, 237 /16s and 163 /24s
Percentage of available RIPE address space announced: 80.9

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

Prefixes being announced by LACNIC Region ASes: 39256
Total LACNIC prefixes after maximum aggregation: 8155
LACNIC Deaggregation factor: 4.81
Prefixes being announced from the LACNIC address blocks: 39019
Unique aggregates announced from the LACNIC address blocks: 19746
LACNIC Region origin ASes present in the Internet Routing Table: 1572
LACNIC Prefixes per ASN: 24.82
LACNIC Region origin ASes announcing only one prefix: 432
LACNIC Region transit ASes present in the Internet Routing Table: 294
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 21
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 492
Number of LACNIC addresses announced to Internet: 98598280
Equivalent to 5 /8s, 224 /16s and 125 /24s
Percentage of available LACNIC address space announced: 65.3

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: 8856
Total AfriNIC prefixes after maximum aggregation: 2110
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 6929
Unique aggregates announced from the AfriNIC address blocks: 2182
AfriNIC Region origin ASes present in the Internet Routing Table: 520
AfriNIC Prefixes per ASN: 13.32
AfriNIC Region origin ASes announcing only one prefix: 160
AfriNIC Region transit ASes present in the Internet Routing Table: 117
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: 31510272
Equivalent to 1 /8s, 224 /16s and 207 /24s
Percentage of available AfriNIC address space announced: 47.0

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 2490 11109 991 Korea Telecom (KIX)
17974 1759 503 64 PT TELEKOMUNIKASI INDONESIA
7545 1659 303 90 TPG Internet Pty Ltd
4755 1574 386 160 TATA Communications formerly
9583 1238 95 540 Sify Limited
9829 1208 1025 29 BSNL National Internet Backbo
7552 1167 1062 11 Vietel Corporation
4808 1097 2048 314 CNCGROUP IP network: China169
24560 1014 384 166 Bharti Airtel Ltd., Telemedia
18101 947 130 159 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
7029 3378 990 155 Windstream Communications Inc
6389 3371 3807 196 bellsouth.net, inc.
4323 2975 1060 385 Time Warner Telecom
18566 2093 383 179 Covad Communications
1785 1886 680 129 PaeTec Communications, Inc.
20115 1634 1559 626 Charter Communications
22773 1547 2910 111 Cox Communications, Inc.
30036 1402 253 744 Mediacom Communications Corp
7018 1282 9776 835 AT&T WorldNet Services
11492 1165 212 413 Cable One

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 1742 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
15557 1034 2247 55 LDCOM NETWORKS
31148 672 37 9 FreeNet ISP
34984 666 188 174 BILISIM TELEKOM
12479 645 654 56 Uni2 Autonomous System
6830 641 1943 412 UPC Distribution Services
20940 633 203 489 Akamai Technologies European
8551 577 360 81 Bezeq International
3320 532 8442 398 Deutsche Telekom AG

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 1807 329 130 TVCABLE BOGOTA
28573 1729 1099 60 NET Servicos de Comunicao S.A
8151 1495 3017 354 UniNet S.A. de C.V.
7303 1351 826 190 Telecom Argentina Stet-France
26615 901 684 29 Tim Brasil S.A.
27947 688 69 111 Telconet S.A
11172 636 91 73 Servicios Alestra S.A de C.V
22047 584 326 15 VTR PUNTO NET S.A.
3816 562 239 96 Empresa Nacional de Telecomun
6503 559 418 65 AVANTEL, S.A.

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 1261 958 13 TEDATA
24863 844 274 37 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 271 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 Vodacom Internet Company
24835 178 80 8 RAYA Telecom - Egypt
33776 168 12 20 Starcomms Nigeria Limited
16637 164 664 82 MTN Network Solutions
36923 157 20 4 Swift Networks Limited

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
7029 3378 990 155 Windstream Communications Inc
6389 3371 3807 196 bellsouth.net, inc.
4323 2975 1060 385 Time Warner Telecom
4766 2490 11109 991 Korea Telecom (KIX)
18566 2093 383 179 Covad Communications
1785 1886 680 129 PaeTec Communications, Inc.
10620 1807 329 130 TVCABLE BOGOTA
17974 1759 503 64 PT TELEKOMUNIKASI INDONESIA
8402 1742 544 16 Corbina telecom
28573 1729 1099 60 NET Servicos de Comunicao S.A

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

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

ASN No of nets Net Savings Description
6389 3371 3175 bellsouth.net, inc.
4323 2975 2590 Time Warner Telecom
18566 2093 1914 Covad Communications
1785 1886 1757 PaeTec Communications, Inc.
8402 1742 1726 Corbina telecom
17974 1759 1695 PT TELEKOMUNIKASI INDONESIA
10620 1807 1677 TVCABLE BOGOTA
28573 1729 1669 NET Servicos de Comunicao S.A
7545 1659 1569 TPG Internet Pty Ltd
4766 2490 1499 Korea Telecom (KIX)

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

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

Bad AS Designation Network Transit AS Description
54439 UNALLOCATED 8.25.174.0/24 3356 Level 3 Communicatio
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

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 /10:28 /11:81 /12:234
/13:458 /14:824 /15:1477 /16:12178 /17:6245 /18:10433
/19:20544 /20:28736 /21:29648 /22:40181 /23:37521 /24:211773
/25:1217 /26:1455 /27:794 /28:168 /29:60 /30:17
/31:0 /32:19

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

ASN No of nets Total ann. Description
7029 3038 3378 Windstream Communications Inc
6389 2088 3371 bellsouth.net, inc.
18566 2042 2093 Covad Communications
4323 1806 2975 Time Warner Telecom
8402 1719 1742 Corbina telecom
10620 1704 1807 TVCABLE BOGOTA
30036 1350 1402 Mediacom Communications Corp
11492 1128 1165 Cable One
8452 1071 1261 TEDATA
1785 1067 1886 PaeTec Communications, Inc.

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

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

1:532 2:761 4:14 6:3 8:390 12:1968
13:1 14:599 15:12 16:3 17:7 20:8
23:147 24:1754 27:1252 31:939 32:62 33:2
34:2 36:8 37:288 38:780 40:120 41:3016
42:129 44:3 46:1455 47:3 49:342 50:639
52:13 54:6 55:10 56:3 57:35 58:959
59:493 60:278 61:1198 62:974 63:1990 64:4346
65:2276 66:4828 67:2006 68:1147 69:3185 70:902
71:438 72:1799 74:2711 75:491 76:320 77:967
78:981 79:502 80:1234 81:908 82:659 83:553
84:614 85:1191 86:726 87:915 88:343 89:1614
90:296 91:4631 92:519 93:1456 94:1453 95:1160
96:375 97:386 98:826 99:37 100:6 101:157
103:919 106:64 107:178 108:210 109:1554 110:751
111:902 112:444 113:562 114:629 115:768 116:908
117:724 118:907 119:1199 120:336 121:695 122:1661
123:1093 124:1362 125:1259 128:556 129:190 130:261
131:596 132:173 133:21 134:242 135:63 136:212
137:194 138:351 139:143 140:493 141:240 142:388
143:408 144:498 145:69 146:491 147:243 148:722
149:297 150:156 151:174 152:459 153:171 154:7
155:428 156:213 157:376 158:164 159:523 160:326
161:249 162:343 163:186 164:547 165:392 166:560
167:463 168:860 169:148 170:845 171:124 172:2
173:1836 174:726 175:434 176:462 177:594 178:1295
180:1128 181:73 182:757 183:277 184:441 185:1
186:2135 187:859 188:1148 189:1173 190:5567 192:5989
193:5597 194:4567 195:3640 196:1293 197:175 198:3622
199:4475 200:5767 201:1658 202:8461 203:8583 204:4346
205:2470 206:2794 207:2836 208:4050 209:3690 210:2760
211:1466 212:1975 213:1903 214:866 215:108 216:5094
217:1531 218:537 219:333 220:1230 221:551 222:325
223:327

End of report
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Friday, March 23, 2012

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sat 24 Mar, 2012

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: 406854
Prefixes after maximum aggregation: 172699
Deaggregation factor: 2.36
Unique aggregates announced to Internet: 195528
Total ASes present in the Internet Routing Table: 40514
Prefixes per ASN: 10.04
Origin-only ASes present in the Internet Routing Table: 32921
Origin ASes announcing only one prefix: 15517
Transit ASes present in the Internet Routing Table: 5464
Transit-only ASes present in the Internet Routing Table: 141
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 28
Max AS path prepend of ASN (19202) 25
Prefixes from unregistered ASNs in the Routing Table: 5744
Unregistered ASNs in the Routing Table: 250
Number of 32-bit ASNs allocated by the RIRs: 2330
Number of 32-bit ASNs visible in the Routing Table: 2129
Prefixes from 32-bit ASNs in the Routing Table: 5217
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 895
Number of addresses announced to Internet: 2528264145
Equivalent to 150 /8s, 178 /16s and 63 /24s
Percentage of available address space announced: 68.2
Percentage of allocated address space announced: 68.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 171895

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

Prefixes being announced by APNIC Region ASes: 96588
Total APNIC prefixes after maximum aggregation: 30941
APNIC Deaggregation factor: 3.12
Prefixes being announced from the APNIC address blocks: 93080
Unique aggregates announced from the APNIC address blocks: 39410
APNIC Region origin ASes present in the Internet Routing Table: 4659
APNIC Prefixes per ASN: 19.98
APNIC Region origin ASes announcing only one prefix: 1247
APNIC Region transit ASes present in the Internet Routing Table: 742
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 166
Number of APNIC addresses announced to Internet: 641387520
Equivalent to 38 /8s, 58 /16s and 204 /24s
Percentage of available APNIC address space announced: 81.3

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

Prefixes being announced by ARIN Region ASes: 152518
Total ARIN prefixes after maximum aggregation: 78003
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 123706
Unique aggregates announced from the ARIN address blocks: 49934
ARIN Region origin ASes present in the Internet Routing Table: 14966
ARIN Prefixes per ASN: 8.27
ARIN Region origin ASes announcing only one prefix: 5687
ARIN Region transit ASes present in the Internet Routing Table: 1576
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 28
Number of ARIN region 32-bit ASNs visible in the Routing Table: 16
Number of ARIN addresses announced to Internet: 805178112
Equivalent to 47 /8s, 254 /16s and 11 /24s
Percentage of available ARIN address space announced: 64.0

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

Prefixes being announced by RIPE Region ASes: 103534
Total RIPE prefixes after maximum aggregation: 53294
RIPE Deaggregation factor: 1.94
Prefixes being announced from the RIPE address blocks: 94016
Unique aggregates announced from the RIPE address blocks: 57194
RIPE Region origin ASes present in the Internet Routing Table: 16378
RIPE Prefixes per ASN: 5.74
RIPE Region origin ASes announcing only one prefix: 7986
RIPE Region transit ASes present in the Internet Routing Table: 2653
Average RIPE Region AS path length visible: 4.9
Max RIPE Region AS path length visible: 23
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1446
Number of RIPE addresses announced to Internet: 502317192
Equivalent to 29 /8s, 240 /16s and 192 /24s
Percentage of available RIPE address space announced: 80.9

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

Prefixes being announced by LACNIC Region ASes: 39741
Total LACNIC prefixes after maximum aggregation: 8139
LACNIC Deaggregation factor: 4.88
Prefixes being announced from the LACNIC address blocks: 39442
Unique aggregates announced from the LACNIC address blocks: 19695
LACNIC Region origin ASes present in the Internet Routing Table: 1574
LACNIC Prefixes per ASN: 25.06
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 295
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 496
Number of LACNIC addresses announced to Internet: 98594824
Equivalent to 5 /8s, 224 /16s and 112 /24s
Percentage of available LACNIC address space announced: 65.3

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: 8886
Total AfriNIC prefixes after maximum aggregation: 2133
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6959
Unique aggregates announced from the AfriNIC address blocks: 2220
AfriNIC Region origin ASes present in the Internet Routing Table: 523
AfriNIC Prefixes per ASN: 13.31
AfriNIC Region origin ASes announcing only one prefix: 161
AfriNIC Region transit ASes present in the Internet Routing Table: 119
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 31515136
Equivalent to 1 /8s, 224 /16s and 226 /24s
Percentage of available AfriNIC address space announced: 47.0

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 1925 11101 676 Korea Telecom (KIX)
17974 1760 503 64 PT TELEKOMUNIKASI INDONESIA
7545 1652 303 89 TPG Internet Pty Ltd
4755 1574 386 160 Videsh Sanchar Nigam Ltd. Aut
9583 1241 95 543 Sify Limited
9829 1207 1025 29 BSNL National Internet Backbo
7552 1167 1062 11 Vietel Corporation
24560 1014 384 166 Bharti Airtel Ltd.
18101 948 130 160 Reliance Infocom Ltd Internet
4808 923 1874 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
7029 3375 990 155 Windstream Communications Inc
6389 3372 3807 198 bellsouth.net, inc.
4323 2327 1074 377 Time Warner Telecom
18566 2093 383 179 Covad Communications
1785 1882 680 128 AppliedTheory Corporation
20115 1634 1558 629 Charter Communications
22773 1547 2910 111 Cox Communications, Inc.
30036 1402 253 744 Mediacom Communications Corp
7018 1280 13743 834 AT&T WorldNet Services
11492 1165 212 413 Cable One

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 1763 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
286 1067 853 198 KPNQwest Backbone AS
15557 1034 2247 55 LDCOM NETWORKS
31148 672 37 9 FreeNet ISP
34984 666 188 174 Tellcom Iletisim Hizmetleri
12479 644 653 56 Uni2 Autonomous System
6830 642 1943 413 UPC Distribution Services
20940 626 205 492 Akamai Technologies European
8551 602 360 81 Bezeq International

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 1807 329 130 TVCABLE BOGOTA
28573 1703 1099 60 Types of queries are: POCs, o
8151 1536 3000 334 Uninet S.A. de C.V.
7303 1351 826 190 Telecom Argentina Stet-France
26615 901 684 29 Types of queries are: POCs, o
27947 688 69 111 Telconet S.A
11172 637 91 73 Alestra
22047 584 326 15 Types of queries are: POCs, o
6503 568 418 66 AVANTEL, S.A.
3816 561 239 99 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 1260 958 13 TEDATA
24863 842 274 35 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 271 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 YEBO-AS
24835 178 80 8 RAYA Telecom - Egypt
33776 168 12 20 Starcomms Nigeria Limited
36923 157 20 4 Swift Networks Limited
16637 156 664 84 Johnnic e-Ventures

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
7029 3375 990 155 Windstream Communications Inc
6389 3372 3807 198 bellsouth.net, inc.
4323 2327 1074 377 Time Warner Telecom
18566 2093 383 179 Covad Communications
4766 1925 11101 676 Korea Telecom (KIX)
1785 1882 680 128 AppliedTheory Corporation
10620 1807 329 130 TVCABLE BOGOTA
8402 1763 544 16 Corbina telecom
17974 1760 503 64 PT TELEKOMUNIKASI INDONESIA
28573 1703 1099 60 Types of queries are: POCs, o

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

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

ASN No of nets Net Savings Description
6389 3372 3174 bellsouth.net, inc.
4323 2327 1950 Time Warner Telecom
18566 2093 1914 Covad Communications
1785 1882 1754 AppliedTheory Corporation
8402 1763 1747 Corbina telecom
17974 1760 1696 PT TELEKOMUNIKASI INDONESIA
10620 1807 1677 TVCABLE BOGOTA
28573 1703 1643 Types of queries are: POCs, o
7545 1652 1563 TPG Internet Pty Ltd
22773 1547 1436 Cox Communications, Inc.

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 /8:19 /9:12 /10:28 /11:81 /12:234
/13:458 /14:829 /15:1509 /16:12334 /17:6511 /18:10857
/19:21084 /20:29870 /21:30045 /22:40523 /23:37968 /24:212863
/25:69 /26:76 /27:110 /28:278 /29:105 /30:509
/31:20 /32:462

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

ASN No of nets Total ann. Description
7029 3035 3375 Windstream Communications Inc
6389 2088 3372 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1740 1763 Corbina telecom
10620 1704 1807 TVCABLE BOGOTA
30036 1350 1402 Mediacom Communications Corp
4323 1162 2327 Time Warner Telecom
11492 1128 1165 Cable One
8452 1070 1260 TEDATA
1785 1064 1882 AppliedTheory Corporation

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

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

1:536 2:758 4:18 6:3 8:395 12:1977
13:1 14:604 15:12 16:3 17:7 20:8
23:147 24:1761 27:1244 31:963 32:124 33:2
34:2 36:8 37:297 38:787 39:4 40:120
41:3030 42:129 44:3 46:1462 47:3 49:347
50:518 52:13 54:6 55:11 56:3 57:46
58:963 59:493 60:278 61:1211 62:990 63:2008
64:4218 65:2275 66:4529 67:2046 68:1331 69:3301
70:949 71:437 72:1834 73:1 74:2758 75:504
76:332 77:967 78:986 79:513 80:1240 81:914
82:669 83:555 84:626 85:1195 86:731 87:918
88:346 89:1622 90:296 91:4644 92:521 93:1491
94:1462 95:1161 96:378 97:386 98:828 99:38
100:6 101:154 103:927 106:64 107:178 108:212
109:1559 110:762 111:900 112:445 113:564 114:635
115:781 116:920 117:724 118:921 119:1207 120:341
121:719 122:1662 123:1102 124:1368 125:1261 128:553
129:193 130:266 131:596 132:173 133:21 134:244
135:63 136:212 137:194 138:275 139:157 140:494
141:241 142:389 143:406 144:499 145:69 146:490
147:253 148:758 149:295 150:157 151:176 152:459
153:171 154:7 155:445 156:213 157:382 158:163
159:522 160:326 161:249 162:343 163:186 164:546
165:411 166:562 167:464 168:860 169:149 170:844
171:123 172:2 173:1851 174:737 175:447 176:462
177:596 178:1292 180:1169 181:73 182:775 183:277
184:448 185:1 186:2135 187:870 188:1147 189:1189
190:5540 192:6023 193:5623 194:4594 195:3686 196:1295
197:183 198:3638 199:4484 200:5775 201:1661 202:8474
203:8633 204:4360 205:2471 206:2825 207:2843 208:4080
209:3722 210:2784 211:1479 212:2034 213:1918 214:869
215:107 216:5109 217:1539 218:542 219:347 220:1237
221:553 222:330 223:326

End of report
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