Routing Table Report 00:00 GMT Thu 28 Dec, 2006
Analysis Summary
----------------
BGP routing table entries examined: 214727
Prefixes after maximum aggregation: 113179
Unique aggregates announced to Internet: 99601
Total ASes present in the Internet Routing Table: 24040
Origin-only ASes present in the Internet Routing Table: 20928
Origin ASes announcing only one prefix: 10077
Transit ASes present in the Internet Routing Table: 3112
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 3.4
Max AS path length visible: 31
Max AS path prepend of ASN (32609) 16
Prefixes from unregistered ASNs in the Routing Table: 21
Unregistered ASNs in the Routing Table: 15
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1649193768
Equivalent to 98 /8s, 76 /16s and 179 /24s
Percentage of available address space announced: 44.5
Percentage of allocated address space announced: 63.1
Percentage of available address space allocated: 70.5
Total number of prefixes smaller than registry allocations: 112488
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 45150
Total APNIC prefixes after maximum aggregation: 18128
Prefixes being announced from the APNIC address blocks: 42638
Unique aggregates announced from the APNIC address blocks: 18314
APNIC Region origin ASes present in the Internet Routing Table: 2779
APNIC Region origin ASes announcing only one prefix: 784
APNIC Region transit ASes present in the Internet Routing Table: 418
Average APNIC Region AS path length visible: 3.9
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 271855168
Equivalent to 16 /8s, 52 /16s and 46 /24s
Percentage of available APNIC address space announced: 85.0
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911
APNIC Address Blocks 58/7, 60/7, 121/8, 122/7, 124/7, 126/8, 202/7
210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 109493
Total ARIN prefixes after maximum aggregation: 61826
Prefixes being announced from the ARIN address blocks: 81645
Unique aggregates announced from the ARIN address blocks: 28688
ARIN Region origin ASes present in the Internet Routing Table: 11249
ARIN Region origin ASes announcing only one prefix: 4281
ARIN Region transit ASes present in the Internet Routing Table: 1028
Average ARIN Region AS path length visible: 3.1
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 311544800
Equivalent to 18 /8s, 145 /16s and 203 /24s
Percentage of available ARIN address space announced: 68.8
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
ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 96/6, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 43977
Total RIPE prefixes after maximum aggregation: 28294
Prefixes being announced from the RIPE address blocks: 40951
Unique aggregates announced from the RIPE address blocks: 26453
RIPE Region origin ASes present in the Internet Routing Table: 9015
RIPE Region origin ASes announcing only one prefix: 4712
RIPE Region transit ASes present in the Internet Routing Table: 1462
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 31
Number of RIPE addresses announced to Internet: 283046528
Equivalent to 16 /8s, 222 /16s and 242 /24s
Percentage of available RIPE address space announced: 76.7
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
40960-43007
RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 13465
Total LACNIC prefixes after maximum aggregation: 3958
Prefixes being announced from the LACNIC address blocks: 11524
Unique aggregates announced from the LACNIC address blocks: 6716
LACNIC Region origin ASes present in the Internet Routing Table: 753
LACNIC Region origin ASes announcing only one prefix: 248
LACNIC Region transit ASes present in the Internet Routing Table: 134
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 35660800
Equivalent to 2 /8s, 32 /16s and 36 /24s
Percentage of available LACNIC address space announced: 53.1
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 2622
Total AfriNIC prefixes after maximum aggregation: 973
Prefixes being announced from the AfriNIC address blocks: 1869
Unique aggregates announced from the AfriNIC address blocks: 1069
AfriNIC Region origin ASes present in the Internet Routing Table: 172
AfriNIC Region origin ASes announcing only one prefix: 52
AfriNIC Region transit ASes present in the Internet Routing Table: 30
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5328128
Equivalent to 0 /8s, 81 /16s and 77 /24s
Percentage of available AfriNIC address space announced: 15.9
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 1285 8609 260 CHINANET-BACKBONE
4755 1066 383 67 Videsh Sanchar Nigam Ltd. Aut
9583 1032 109 16 Sify Limited
9498 891 211 63 BHARTI BT INTERNET LTD.
23577 770 34 700 KRNIC
4766 751 4945 306 Korea Telecom (KIX)
1221 613 1714 456 Telstra Pty Ltd
17488 565 35 21 Hathway IP Over Cable Interne
17676 503 10935 66 Softbank BB Corp.
18101 493 87 26 Reliance Infocom Ltd Internet
9942 440 81 132 COMindico Australia
9443 439 111 74 Primus Telecommunications
4812 438 758 69 China Telecom (Shanghai)
7545 438 125 69 TPG Internet Pty Ltd
17849 411 36 126 Telecommunications Technology
4802 399 85 138 Wantree Development
17557 367 35 171 Pakistan Telecom
17974 338 129 13 PT TELEKOMUNIKASI INDONESIA
2907 336 1749 311 SINET Japan
4837 331 3911 147 chinanet IDC center beijing n
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 546 1912 425 UUNET - Commercial IP service
3215 390 2104 96 France Telecom Transpac
24863 386 45 16 LINKdotNET AS number
3301 310 1199 292 TeliaNet Sweden
3320 300 4994 248 Deutsche Telekom AG
8220 274 474 264 COLT Telecommunications
6746 264 93 242 Dynamic Network Technologies,
680 253 2041 248 DFN-IP service G-WiN
1257 249 1069 172 SWIPnet Swedish IP Network
5089 244 1657 52 NTL Group Limited
9116 233 134 23 Goldenlines main autonomous s
8708 231 282 218 Romania Data Systems S.A.
3269 210 2373 73 TELECOM ITALIA
30890 208 19 90 SC Kappa Invexim SRL
5416 206 13 9 BATELCO-BH
3246 205 353 192 Song Networks
8551 199 197 24 Bezeq International
3300 188 172 101 AUCS Communications Services
3352 175 1767 31 Ibernet, Internet Access Netw
12479 175 578 6 Uni2 Autonomous System
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 4872 6691 762 UUNET Technologies, Inc.
7018 1549 10268 1004 AT&T WorldNet Services
705 1408 554 610 UUNET Technologies, Inc.
2386 1111 587 735 AT&T Data Communications Serv
4323 1057 820 298 Time Warner Telecom
6197 1018 636 498 BellSouth Network Solutions,
18566 983 272 8 Covad Communications
174 959 6807 872 Cogent Communications
11492 863 98 13 Cable One
1239 814 2713 571 Sprint
19262 804 2496 181 Verizon Global Networks
7046 802 251 660 UUNET Technologies, Inc.
721 779 21885 292 DLA Systems Automation Center
20115 767 667 406 Charter Communications
209 711 3763 558 Qwest
22773 710 1744 40 Cox Communications, Inc.
7011 686 211 431 Citizens Utilities
852 617 1092 391 Telus Advanced Communications
577 576 744 214 Bell Advanced Communications
19916 567 48 57 OLM LLC
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4134 1285 1025 CHINANET-BACKBONE
9583 1032 1016 Sify Limited
4755 1066 999 Videsh Sanchar Nigam Ltd. Aut
18566 983 975 Covad Communications
11492 863 850 Cable One
9498 891 828 BHARTI BT INTERNET LTD.
705 1408 798 UUNET Technologies, Inc.
4323 1057 759 Time Warner Telecom
22773 710 670 Cox Communications, Inc.
19262 804 623 Verizon Global Networks
8151 779 577 UniNet S.A. de C.V.
7018 1549 545 AT&T WorldNet Services
17488 565 544 Hathway IP Over Cable Interne
5668 547 528 CenturyTel Internet Holdings,
6197 1018 520 BellSouth Network Solutions,
19916 567 510 OLM LLC
11830 504 495 Instituto Costarricense de El
721 779 487 DLA Systems Automation Center
18101 493 467 Reliance Infocom Ltd Internet
855 538 465 Canadian Research Network
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65515 PRIVATE 87.251.34.0/24 12859 Business Internet Tr
65515 PRIVATE 87.251.36.0/24 12859 Business Internet Tr
65010 PRIVATE 135.196.7.112/29 8190 VIATEL
65019 PRIVATE 135.196.106.208/28 8190 VIATEL
65014 PRIVATE 135.196.176.96/27 8190 VIATEL
65011 PRIVATE 203.116.243.0/24 4657 Starhub Internet, Si
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
65010 PRIVATE 212.2.12.160/28 8190 VIATEL
65016 PRIVATE 212.2.26.64/29 8190 VIATEL
65016 PRIVATE 212.2.31.184/30 8190 VIATEL
65515 PRIVATE 213.154.234.0/27 12859 Business Internet Tr
65517 PRIVATE 213.154.248.0/29 12859 Business Internet Tr
65517 PRIVATE 213.154.248.8/29 12859 Business Internet Tr
65018 PRIVATE 213.235.24.216/29 8190 VIATEL
65010 PRIVATE 213.235.29.224/29 8190 VIATEL
65013 PRIVATE 213.235.33.0/27 8190 VIATEL
65017 PRIVATE 213.235.48.96/28 8190 VIATEL
64512 PRIVATE 217.134.164.0/22 5428 Energis Communicatio
64512 PRIVATE 217.134.168.0/21 5428 Energis Communicatio
64512 PRIVATE 217.134.176.0/21 5428 Energis Communicatio
64512 PRIVATE 217.134.184.0/22 5428 Energis Communicatio
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
0.0.0.0/0 286 KPNQwest Backbone AS
192.0.2.0/24 2854 RoSprint AS (Global One Russi
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
172.33.1.0/24 7018 AT&T WorldNet Services
192.0.10.0/24 9498 BHARTI BT INTERNET LTD.
192.44.0.0/24 5501 Fraunhofer Gesellschaft
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.172.0.0/19 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
!!Default route being announced!!
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:10 /10:13 /11:30 /12:116
/13:240 /14:407 /15:801 /16:9137 /17:3682 /18:6010
/19:12997 /20:14737 /21:13187 /22:16913 /23:18365 /24:115428
/25:735 /26:531 /27:447 /28:196 /29:151 /30:477
/31:0 /32:97
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 3626 4872 UUNET Technologies, Inc.
18566 966 983 Covad Communications
705 871 1408 UUNET Technologies, Inc.
9583 860 1032 Sify Limited
11492 849 863 Cable One
7018 833 1549 AT&T WorldNet Services
2386 829 1111 AT&T Data Communications Serv
6197 794 1018 BellSouth Network Solutions,
23577 756 770 KRNIC
7011 591 686 Citizens Utilities
19916 562 567 OLM LLC
4766 560 751 Korea Telecom (KIX)
7046 559 802 UUNET Technologies, Inc.
9498 556 891 BHARTI BT INTERNET LTD.
4755 486 1066 Videsh Sanchar Nigam Ltd. Aut
15270 468 500 PaeTec.net -a division of Pae
855 435 538 Canadian Research Network
18101 428 493 Reliance Infocom Ltd Internet
5668 419 547 CenturyTel Internet Holdings,
17849 397 411 Telecommunications Technology
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:61 9:1 12:1671 13:1 15:15
16:3 17:3 18:5 20:34 24:858 25:1
32:176 38:274 40:57 41:57 44:2 47:10
52:4 53:1 55:1 56:3 57:52 58:279
59:353 60:227 61:985 62:1189 63:3339 64:3304
65:3633 66:3186 67:712 68:657 69:1705 70:406
71:130 72:1104 74:121 75:49 76:16 80:835
81:764 82:706 83:406 84:458 85:781 86:405
87:459 88:261 89:712 90:1 91:109 97:1
121:112 122:47 123:8 124:504 125:735 128:302
129:219 130:132 131:316 132:49 133:11 134:177
135:43 136:180 137:115 138:189 139:104 140:527
141:134 142:368 143:213 144:263 145:67 146:311
147:144 148:366 149:174 150:111 151:118 152:90
153:118 154:6 155:247 156:148 157:155 158:166
159:138 160:99 161:84 162:224 163:160 164:283
165:236 166:243 167:282 168:484 169:123 170:376
171:12 172:1 189:29 190:310 192:5784 193:3640
194:2930 195:2304 196:1005 198:3926 199:3355 200:4563
201:944 202:6697 203:6600 204:4114 205:2212 206:2661
207:3155 208:3081 209:3718 210:2238 211:927 212:1381
213:1467 214:384 215:39 216:4262 217:1323 218:354
219:261 220:818 221:376 222:264
End of report