[afnog] Weekly Routing Table Report
Routing Table Analysis
cscora at apnic.net
Fri Dec 2 21:07:33 EAT 2005
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
If you have any comments please contact Philip Smith <pfs at cisco.com>.
Routing Table Report 04:00 +10GMT Sat 03 Dec, 2005
Analysis Summary
----------------
BGP routing table entries examined: 176067
Prefixes after maximum aggregation: 99087
Unique aggregates announced to Internet: 85328
Total ASes present in the Internet Routing Table: 21035
Origin-only ASes present in the Internet Routing Table: 18309
Origin ASes announcing only one prefix: 8674
Transit ASes present in the Internet Routing Table: 2726
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 23
Prefixes from unregistered ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1469673344
Equivalent to 87 /8s, 153 /16s and 111 /24s
Percentage of available address space announced: 39.7
Percentage of allocated address space announced: 59.7
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 84502
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36873
Total APNIC prefixes after maximum aggregation: 15699
Prefixes being announced from the APNIC address blocks: 34622
Unique aggregates announced from the APNIC address blocks: 16944
APNIC Region origin ASes present in the Internet Routing Table: 2419
APNIC Region origin ASes announcing only one prefix: 699
APNIC Region transit ASes present in the Internet Routing Table: 364
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 208047808
Equivalent to 12 /8s, 102 /16s and 142 /24s
Percentage of available APNIC address space announced: 77.2
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, 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: 92966
Total ARIN prefixes after maximum aggregation: 55975
Prefixes being announced from the ARIN address blocks: 72481
Unique aggregates announced from the ARIN address blocks: 27556
ARIN Region origin ASes present in the Internet Routing Table: 10379
ARIN Region origin ASes announcing only one prefix: 3857
ARIN Region transit ASes present in the Internet Routing Table: 963
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 278432000
Equivalent to 16 /8s, 152 /16s and 137 /24s
Percentage of available ARIN address space announced: 69.1
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
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/6, 74/7, 76/8,
198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 34421
Total RIPE prefixes after maximum aggregation: 23247
Prefixes being announced from the RIPE address blocks: 31362
Unique aggregates announced from the RIPE address blocks: 21087
RIPE Region origin ASes present in the Internet Routing Table: 7370
RIPE Region origin ASes announcing only one prefix: 3865
RIPE Region transit ASes present in the Internet Routing Table: 1217
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 226078976
Equivalent to 13 /8s, 121 /16s and 177 /24s
Percentage of available RIPE address space announced: 67.4
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
RIPE Address Blocks 62/8, 80/5, 88/6, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 10032
Total LACNIC prefixes after maximum aggregation: 3316
Prefixes being announced from the LACNIC address blocks: 8323
Unique aggregates announced from the LACNIC address blocks: 4822
LACNIC Region origin ASes present in the Internet Routing Table: 651
LACNIC Region origin ASes announcing only one prefix: 208
LACNIC Region transit ASes present in the Internet Routing Table: 120
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 23
Number of LACNIC addresses announced to Internet: 22953984
Equivalent to 1 /8s, 94 /16s and 64 /24s
Percentage of available LACNIC address space announced: 34.2
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: 1767
Total AfriNIC prefixes after maximum aggregation: 850
Prefixes being announced from the AfriNIC address blocks: 1157
Unique aggregates announced from the AfriNIC address blocks: 834
AfriNIC Region origin ASes present in the Internet Routing Table: 144
AfriNIC Region origin ASes announcing only one prefix: 45
AfriNIC Region transit ASes present in the Internet Routing Table: 21
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2884608
Equivalent to 0 /8s, 44 /16s and 4 /24s
Percentage of available AfriNIC address space announced: 8.6
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 1014 6356 216 CHINANET-BACKBONE
9583 833 77 12 Sify Limited
4755 759 260 70 Videsh Sanchar Nigam Ltd. Aut
1221 692 1370 502 Telstra Pty Ltd
4766 653 3927 287 Korea Telecom (KIX)
7545 509 108 70 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
17488 425 25 23 Hathway IP Over Cable Interne
9498 408 216 65 BHARTI BT INTERNET LTD.
9443 394 87 80 Primus Telecommunications
4802 345 73 158 Wantree Development
2907 340 1764 317 SINET Japan
9929 331 217 49 China Netcom Corp.
17557 331 24 161 Pakistan Telecom
18302 329 152 25 SK Global co., Ltd
7474 325 225 224 SingTel Optus Pty Ltd
17974 281 65 16 PT TELEKOMUNIKASI INDONESIA
9837 272 78 174 Powertel Ltd
18101 271 68 19 Reliance Infocom Ltd Internet
9800 255 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1471 6314 962 AT&T WorldNet Services
4323 1190 706 233 Time Warner Telecom
174 1074 5846 993 Cogent Communications
721 999 21889 299 DLA Systems Automation Center
701 986 8133 829 UUNET Technologies, Inc.
6197 968 432 502 BellSouth Network Solutions,
2386 914 530 685 AT&T Data Communications Serv
18566 879 240 7 Covad Communications
1239 844 2801 598 Sprint
209 658 3607 521 Qwest
20115 656 533 344 Charter Communications
11492 632 81 10 Cable One
22773 585 1476 28 Cox Communications, Inc.
852 574 1093 382 Telus Advanced Communications
19262 565 1594 137 Verizon Global Networks
19916 563 49 54 OLM LLC
855 562 247 66 Canadian Research Network
3602 532 126 103 Sprint Canada, Inc.
3356 514 10633 401 Level 3 Communications, LLC
6478 502 1432 280 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 606 1959 479 UUNET - Commercial IP service
3301 306 1085 292 TeliaNet Sweden
3320 285 3230 240 Deutsche Telekom AG
8220 271 475 266 COLT Telecommunications
680 245 2040 239 DFN-IP service G-WiN
8708 236 274 217 Romania Data Systems S.A.
3246 230 477 223 Song Networks
6746 199 51 171 Dynamic Network Technologies,
1257 189 712 170 SWIPnet Swedish IP Network
3269 182 1829 68 TELECOM ITALIA
5515 180 840 127 Sonera Solution Autonomous Sy
786 174 1795 174 The JANET IP Service
5400 166 317 136 BT Ignite European Backbone
8866 163 37 9 Bulgarian Telecommunication C
6830 161 669 33 UPC Distribution Services
3300 158 169 92 AUCS Communications Services
12479 151 322 5 Uni2 Autonomous System
24863 151 37 6 LINKdotNET AS number
3215 150 1275 81 France Telecom Transpac
25186 147 211 103 France Telecom Transpac's Tra
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 397 709 170 UniNet S.A. de C.V.
16814 295 18 7 NSS, S.A.
11172 289 106 74 Servicios Alestra S.A de C.V
11664 219 22 28 Keytech SA
19632 196 14 5 Metropolis Intercom S.A.
14117 184 11 6 Telefonica del Sur S.A.
22047 179 128 7 VTR PUNTO NET S.A.
13999 174 52 9 Mega Cable S.A. de C.V.
6147 157 118 21 Telefonica Del Peru
7303 152 72 19 Telecom Argentina Stet-France
11556 132 64 3 Cable-Wireless Panama
19169 127 8 20 Telconet
10481 121 48 8 Prima S.A.
6503 114 148 75 AVANTEL, S.A.
18822 114 8 11 TELEFONICA MANQUEHUE
5639 112 12 9 Telecommunications Services o
21826 112 14 18 INTERCABLE
6505 107 88 80 Global One Communicaoes Ltda
11311 99 8 10 Sinectis S.A.
4270 94 17 9 Red de Interconexion Universi
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 271 812 229 The Internet Solution
8452 147 44 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
2905 74 155 67 The Internetworking Company o
6713 69 71 10 Itissalat Al-MAGHRIB
20928 61 16 2 Noor Advanced Technologies AS
24835 59 34 6 RAYA Telecom - Egypt
15475 57 84 4 Nile Online
5713 38 151 34 Telkom SA Ltd
33774 33 4 24 AS Number for Telecom Algeria
15706 31 8 3 Sudatel Internet Exchange Aut
8524 23 1 4 AUCEGYPT Autonomous System
16637 23 10 21 Johnnic e-Ventures
23889 23 5 9 MAURITIUS TELECOM
10798 22 1 13 Standard Bank of South Africa
21280 21 4 4 Swift Global Kenya Ltd.Is an
12258 17 3 11 Vodacom Internet Company
15808 17 2 2 Communication Solutions Ltd i
21491 17 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1190 957 Time Warner Telecom
18566 879 872 Covad Communications
9583 833 821 Sify Limited
4134 1014 798 CHINANET-BACKBONE
721 999 700 DLA Systems Automation Center
4755 759 689 Videsh Sanchar Nigam Ltd. Aut
11492 632 622 Cable One
22773 585 557 Cox Communications, Inc.
19916 563 509 OLM LLC
855 562 496 Canadian Research Network
6197 968 466 BellSouth Network Solutions,
5668 486 460 CenturyTel Internet Holdings,
7545 509 439 TPG Internet Pty Ltd
3602 532 429 Sprint Canada, Inc.
19262 565 428 Verizon Global Networks
17488 425 402 Hathway IP Over Cable Interne
17676 470 370 Softbank BB Corp.
4766 653 366 Korea Telecom (KIX)
6467 411 363 E.Spire Communications, Inc.
9498 408 343 BHARTI BT INTERNET LTD.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
38976 UNALLOCATED 62.192.224.0/19 21166 Satgate autonomous s
38976 UNALLOCATED 62.192.232.0/24 21166 Satgate autonomous s
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
64720 PRIVATE 202.127.124.0/24 4837 chinanet IDC center
64720 PRIVATE 202.127.125.0/24 4837 chinanet IDC center
24406 UNALLOCATED 203.119.26.0/24 4808 CNCGROUP IP network:
24406 UNALLOCATED 203.119.27.0/24 4808 CNCGROUP IP network:
24406 UNALLOCATED 203.119.29.0/24 4808 CNCGROUP IP network:
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
175.98.111.0/24 6453 Teleglobe Inc.
192.43.230.0/24 7575 Australian Academic and Rease
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
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.172.0.0/19 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:5 /10:8 /11:19 /12:84
/13:190 /14:342 /15:668 /16:8609 /17:2906 /18:4893
/19:11062 /20:12227 /21:10256 /22:13524 /23:14646 /24:95662
/25:352 /26:291 /27:205 /28:25 /29:12 /30:30
/31:3 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 863 879 Covad Communications
6197 783 968 BellSouth Network Solutions,
7018 722 1471 AT&T WorldNet Services
9583 656 833 Sify Limited
2386 640 914 AT&T Data Communications Serv
11492 624 632 Cable One
4323 568 1190 Time Warner Telecom
19916 557 563 OLM LLC
4766 458 653 Korea Telecom (KIX)
855 434 562 Canadian Research Network
7011 402 466 Citizens Utilities
702 386 606 UUNET - Commercial IP service
5668 385 486 CenturyTel Internet Holdings,
1239 365 844 Sprint
6198 356 494 BellSouth Network Solutions,
6517 320 345 Yipes Communications, Inc.
15270 320 347 PaeTec.net -a division of Pae
22773 303 585 Cox Communications, Inc.
13609 298 340 Choice One Communications Inc
18302 298 329 SK Global co., Ltd
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:40 12:1624 13:1 15:11 16:3
17:3 18:3 20:42 24:711 30:2 32:64
38:187 40:54 44:3 47:3 52:4 55:1
56:3 57:35 58:94 59:103 60:160 61:805
62:801 63:1898 64:2925 65:2138 66:2903 67:643
68:686 69:1332 70:241 71:36 72:474 80:692
81:586 82:487 83:321 84:334 85:381 86:217
87:109 125:130 128:151 129:169 130:99 131:304
132:35 133:1 134:151 135:45 136:167 137:66
138:176 139:75 140:448 141:145 142:404 143:143
144:219 145:34 146:304 147:131 148:271 149:186
150:108 151:71 152:111 153:94 154:5 155:153
156:88 157:118 158:147 159:175 160:84 161:74
162:241 163:173 164:184 165:180 166:147 167:242
168:461 169:143 170:313 171:12 175:1 192:5740
193:3375 194:2432 195:1637 196:712 198:3914 199:3250
200:4313 201:467 202:6285 203:6602 204:3834 205:2092
206:2432 207:2928 208:2028 209:3446 210:1777 211:799
212:1223 213:1382 214:314 215:42 216:3774 217:1178
218:220 219:131 220:538 221:325 222:130
End of report
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