Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Mar 23 18:03:04 UTC 2007
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats at lists.apnic.net
For historical data, please see http://thyme.apnic.net.
If you have any comments please contact Philip Smith <pfs at cisco.com>.
Routing Table Report 04:00 +10GMT Sat 24 Mar, 2007
Analysis Summary
----------------
BGP routing table entries examined: 216399
Prefixes after maximum aggregation: 115792
Deaggregation factor: 1.87
Unique aggregates announced to Internet: 105231
Total ASes present in the Internet Routing Table: 24708
Origin-only ASes present in the Internet Routing Table: 21519
Origin ASes announcing only one prefix: 10383
Transit ASes present in the Internet Routing Table: 3189
Transit-only ASes present in the Internet Routing Table: 69
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 32
Max AS path prepend of ASN (31269) 23
Prefixes from unregistered ASNs in the Routing Table: 5
Unregistered ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1694597580
Equivalent to 101 /8s, 1 /16s and 129 /24s
Percentage of available address space announced: 45.7
Percentage of allocated address space announced: 62.8
Percentage of available address space allocated: 72.8
Total number of prefixes smaller than registry allocations: 112657
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 49615
Total APNIC prefixes after maximum aggregation: 19960
APNIC Deaggregation factor: 2.49
Prefixes being announced from the APNIC address blocks: 46658
Unique aggregates announced from the APNIC address blocks: 20953
APNIC Region origin ASes present in the Internet Routing Table: 2911
APNIC Region origin ASes announcing only one prefix: 786
APNIC Region transit ASes present in the Internet Routing Table: 428
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 289529280
Equivalent to 17 /8s, 65 /16s and 221 /24s
Percentage of available APNIC address space announced: 71.7
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, 116/6, 120/6, 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: 105361
Total ARIN prefixes after maximum aggregation: 61649
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 77367
Unique aggregates announced from the ARIN address blocks: 29985
ARIN Region origin ASes present in the Internet Routing Table: 11429
ARIN Region origin ASes announcing only one prefix: 4376
ARIN Region transit ASes present in the Internet Routing Table: 1044
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 323592832
Equivalent to 19 /8s, 73 /16s and 162 /24s
Percentage of available ARIN address space announced: 71.4
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: 44550
Total RIPE prefixes after maximum aggregation: 29101
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 41178
Unique aggregates announced from the RIPE address blocks: 27441
RIPE Region origin ASes present in the Internet Routing Table: 9337
RIPE Region origin ASes announcing only one prefix: 4908
RIPE Region transit ASes present in the Internet Routing Table: 1515
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 295806084
Equivalent to 17 /8s, 161 /16s and 164 /24s
Percentage of available RIPE address space announced: 80.1
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: 14345
Total LACNIC prefixes after maximum aggregation: 4099
LACNIC Deaggregation factor: 3.50
Prefixes being announced from the LACNIC address blocks: 12403
Unique aggregates announced from the LACNIC address blocks: 7140
LACNIC Region origin ASes present in the Internet Routing Table: 776
LACNIC Region origin ASes announcing only one prefix: 254
LACNIC Region transit ASes present in the Internet Routing Table: 136
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 38409472
Equivalent to 2 /8s, 74 /16s and 21 /24s
Percentage of available LACNIC address space announced: 57.2
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: 2523
Total AfriNIC prefixes after maximum aggregation: 981
AfriNIC Deaggregation factor: 2.57
Prefixes being announced from the AfriNIC address blocks: 1874
Unique aggregates announced from the AfriNIC address blocks: 1146
AfriNIC Region origin ASes present in the Internet Routing Table: 185
AfriNIC Region origin ASes announcing only one prefix: 58
AfriNIC Region transit ASes present in the Internet Routing Table: 35
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5435648
Equivalent to 0 /8s, 82 /16s and 241 /24s
Percentage of available AfriNIC address space announced: 16.2
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 1282 9389 277 CHINANET-BACKBONE
4755 1160 383 77 Videsh Sanchar Nigam Ltd. Aut
9583 1102 78 366 Sify Limited
9498 970 468 70 BHARTI BT INTERNET LTD.
23577 786 35 715 Korea Telecom (ATM-MPLS)
4766 782 4943 313 Korea Telecom (KIX)
17488 620 41 29 Hathway IP Over Cable Interne
1221 577 1973 451 Telstra Pty Ltd
7545 541 141 62 TPG Internet Pty Ltd
18101 537 116 26 Reliance Infocom Ltd Internet
17676 503 10935 65 Softbank BB Corp.
4668 502 68 10 LG-EDS Systems Inc.
9443 453 111 73 Primus Telecommunications
4812 450 790 71 China Telecom (Shanghai)
7474 381 216 260 SingTel Optus Pty Ltd
17557 361 35 175 Pakistan Telecom
4802 360 86 149 Wantree Development
4837 342 4580 153 chinanet IDC center beijing n
17974 339 129 14 PT TELEKOMUNIKASI INDONESIA
2907 336 1733 309 SINET Japan
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1505 6128 982 AT&T WorldNet Services
4323 1299 1021 355 Time Warner Telecom
6478 1138 434 189 AT&T Worldnet Services
2386 1092 558 734 AT&T Data Communications Serv
6197 1034 675 499 BellSouth Network Solutions,
11492 1014 102 12 Cable One
18566 997 288 9 Covad Communications
701 971 6661 741 UUNET Technologies, Inc.
174 940 6791 861 Cogent Communications
20115 844 716 422 Charter Communications
1239 820 2715 572 Sprint
7011 776 225 458 Citizens Utilities
22773 740 1872 41 Cox Communications, Inc.
19262 726 2603 160 Verizon Global Networks
209 720 3733 571 Qwest
721 618 21756 274 DLA Systems Automation Center
852 589 1087 377 Telus Advanced Communications
5668 580 160 16 CenturyTel Internet Holdings,
855 568 250 71 Canadian Research Network
19916 567 49 59 OLM LLC
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 522 1877 415 UUNET - Commercial IP service
24863 337 46 30 LINKdotNET AS number
3301 312 1199 291 TeliaNet Sweden
3320 301 4993 249 Deutsche Telekom AG
6746 270 95 249 Dynamic Network Technologies,
8220 269 469 258 COLT Telecommunications
680 257 2044 251 DFN-IP service G-WiN
5416 253 16 12 BATELCO-BH
3215 235 2208 96 France Telecom Transpac
8708 235 284 228 Romania Data Systems S.A.
1257 222 1180 168 SWIPnet Swedish IP Network
3269 215 2583 72 TELECOM ITALIA
3246 207 356 197 Song Networks
8551 206 196 30 Bezeq International
30890 206 17 96 SC Kappa Invexim SRL
20858 199 34 4 EgyNet
3352 192 1795 36 Ibernet, Internet Access Netw
3300 185 171 90 AUCS Communications Services
12479 184 578 6 Uni2 Autonomous System
786 174 1795 174 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1075 2040 210 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 354 109 87 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 307 206 11 VTR PUNTO NET S.A.
7303 257 142 23 Telecom Argentina Stet-France
6471 256 74 30 ENTEL CHILE S.A.
14117 240 17 14 Telefonica del Sur S.A.
11556 236 128 3 Cable-Wireless Panama
6147 230 182 20 Telefonica Del Peru
6503 205 170 79 AVANTEL, S.A.
20299 182 25 25 NEWCOM AMERICAS
10481 181 72 8 Prima S.A.
21826 156 28 55 INTERCABLE
23216 155 19 42 RAMtelecom Telecomunicaciones
7910 154 11 33 ANDINET ON LINE
10620 150 45 19 TVCABLE BOGOTA
19429 146 91 37 E.T.B.
14522 145 22 5 SatNet S.A.
18822 145 9 10 TELEFONICA MANQUEHUE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 291 868 232 The Internet Solution
8452 205 60 6 TEDATA
6713 143 135 11 Itissalat Al-MAGHRIB
2018 138 309 113 Tertiary Education Network
15475 128 84 4 Nile Online
5536 123 8 15 Internet Egypt Network
33783 106 6 5 EEPAD TISP TELECOM & INTERNET
2905 85 176 74 The Internetworking Company o
24835 85 48 6 RAYA Telecom - Egypt
2561 61 6 2 Egyptian Universities Network
15706 54 12 4 Sudatel Internet Exchange Aut
23889 49 16 13 MAURITIUS TELECOM
5713 44 294 34 Telkom SA Ltd
33774 41 12 22 AS Number for Telecom Algeria
16637 33 21 25 Johnnic e-Ventures
33766 33 2 1 Nyala Communications Pty Ltd
8524 30 2 6 AUCEGYPT Autonomous System
12455 27 6 3 Jambonet Autonomous system
21280 27 4 4 Swift Global Kenya Ltd.Is an
33776 27 2 5 Starcomms Nigeria Limited
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1160 1083 Videsh Sanchar Nigam Ltd. Aut
4134 1282 1005 CHINANET-BACKBONE
11492 1014 1002 Cable One
18566 997 988 Covad Communications
6478 1138 949 AT&T Worldnet Services
4323 1299 944 Time Warner Telecom
9498 970 900 BHARTI BT INTERNET LTD.
8151 1075 865 UniNet S.A. de C.V.
9583 1102 736 Sify Limited
22773 740 699 Cox Communications, Inc.
17488 620 591 Hathway IP Over Cable Interne
19262 726 566 Verizon Global Networks
5668 580 564 CenturyTel Internet Holdings,
6197 1034 535 BellSouth Network Solutions,
18101 537 511 Reliance Infocom Ltd Internet
19916 567 508 OLM LLC
855 568 497 Canadian Research Network
4668 502 492 LG-EDS Systems Inc.
7029 563 483 Alltel Information Services,
15270 515 481 PaeTec.net -a division of Pae
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
65520 PRIVATE 87.120.217.0/24 34224 Neterra Ltd.
64515 PRIVATE 195.47.27.0/24 6721 The Terminal Bar: In
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
22895 UNALLOCATED 216.174.38.0/24 19094 Adelphia Business So
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
7.1.1.0/24 1239 Sprint
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
180.190.0.0/16 24003 JUBILANT ORGANOSYS LTD., INDI
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
192.153.136.0/21 721 DLA Systems Automation Center
192.172.0.0/19 721 DLA Systems Automation Center
197.7.78.0/24 17557 Pakistan Telecom
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:9 /10:12 /11:33 /12:121
/13:231 /14:441 /15:844 /16:9320 /17:3805 /18:6254
/19:13407 /20:14989 /21:13558 /22:17536 /23:18904 /24:114576
/25:784 /26:819 /27:489 /28:71 /29:44 /30:91
/31:0 /32:42
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1094 1138 AT&T Worldnet Services
11492 1000 1014 Cable One
18566 979 997 Covad Communications
9583 943 1102 Sify Limited
7018 821 1505 AT&T WorldNet Services
2386 814 1092 AT&T Data Communications Serv
6197 802 1034 BellSouth Network Solutions,
23577 772 786 Korea Telecom (ATM-MPLS)
7011 679 776 Citizens Utilities
9498 637 970 BHARTI BT INTERNET LTD.
4766 590 782 Korea Telecom (KIX)
19916 562 567 OLM LLC
4755 558 1160 Videsh Sanchar Nigam Ltd. Aut
4323 526 1299 Time Warner Telecom
4668 492 502 LG-EDS Systems Inc.
15270 483 515 PaeTec.net -a division of Pae
855 466 568 Canadian Research Network
18101 462 537 Reliance Infocom Ltd Internet
5668 450 580 CenturyTel Internet Holdings,
17488 442 620 Hathway IP Over Cable Interne
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:65 9:1 12:1791 15:19
16:3 17:3 18:8 20:36 24:929 25:1
32:53 38:292 40:56 41:110 44:2 47:4
52:4 55:1 56:3 57:25 58:363 59:357
60:222 61:905 62:1004 63:1960 64:3083 65:2326
66:3160 67:759 68:664 69:1789 70:495 71:105
72:1239 73:1 74:307 75:103 76:12 77:105
80:844 81:783 82:663 83:361 84:507 85:756
86:409 87:473 88:252 89:839 90:19 91:221
97:1 116:2 117:1 118:1 119:1 120:1
121:146 122:521 123:57 124:751 125:932 128:272
129:223 130:123 131:351 132:51 133:10 134:188
135:38 136:181 137:87 138:137 139:56 140:481
141:144 142:374 143:210 144:281 145:43 146:320
147:146 148:382 149:188 150:114 151:123 152:93
153:120 154:5 155:248 156:155 157:177 158:162
159:153 160:104 161:91 162:234 163:174 164:448
165:397 166:244 167:293 168:520 169:119 170:390
171:15 172:1 189:240 190:496 192:5745 193:3750
194:3047 195:2195 196:910 197:1 198:3749 199:3286
200:4587 201:994 202:7248 203:7364 204:3980 205:2079
206:2452 207:2887 208:2594 209:3615 210:2383 211:928
212:1284 213:1421 214:409 215:39 216:3966 217:1149
218:354 219:292 220:889 221:390 222:271
End of report
Report Website: http://thyme.apnic.net
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