Weekly Routing Table Report
Routing Table Analysis
cscora at apnic.net
Fri Dec 10 18:06:14 UTC 2004
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 11 Dec, 2004
Analysis Summary
----------------
BGP routing table entries examined: 152879
Prefixes after maximum aggregation: 89593
Unique aggregates announced to Internet: 73091
Total ASes present in the Internet Routing Table: 18626
Origin-only ASes present in the Internet Routing Table: 16151
Origin ASes announcing only one prefix: 7585
Transit ASes present in the Internet Routing Table: 2475
Transit-only ASes present in the Internet Routing Table: 76
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 17
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: 16
Number of addresses announced to Internet: 1357811304
Equivalent to 80 /8s, 238 /16s and 142 /24s
Percentage of available address space announced: 36.6
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 70601
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30023
Total APNIC prefixes after maximum aggregation: 14602
Prefixes being announced from the APNIC address blocks: 28078
Unique aggregates announced from the APNIC address blocks: 14488
APNIC Region origin ASes present in the Internet Routing Table: 2176
APNIC Region origin ASes announcing only one prefix: 647
APNIC Region transit ASes present in the Internet Routing Table: 332
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 168393472
Equivalent to 10 /8s, 9 /16s and 123 /24s
Percentage of available APNIC address space announced: 76.8
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 86261
Total ARIN prefixes after maximum aggregation: 52104
Prefixes being announced from the ARIN address blocks: 66033
Unique aggregates announced from the ARIN address blocks: 23747
ARIN Region origin ASes present in the Internet Routing Table: 9767
ARIN Region origin ASes announcing only one prefix: 3524
ARIN Region transit ASes present in the Internet Routing Table: 972
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 236478976
Equivalent to 14 /8s, 24 /16s and 98 /24s
Percentage of available ARIN address space announced: 70.5
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
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,
26624-27647,29695-30719, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 28565
Total RIPE prefixes after maximum aggregation: 19796
Prefixes being announced from the RIPE address blocks: 25446
Unique aggregates announced from the RIPE address blocks: 16691
RIPE Region origin ASes present in the Internet Routing Table: 6109
RIPE Region origin ASes announcing only one prefix: 3274
RIPE Region transit ASes present in the Internet Routing Table: 1045
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 181889536
Equivalent to 10 /8s, 215 /16s and 106 /24s
Percentage of available RIPE address space announced: 63.8
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-34815
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6779
Total LACNIC prefixes after maximum aggregation: 2394
Prefixes being announced from the LACNIC address blocks: 6606
Unique aggregates announced from the LACNIC address blocks: 4042
LACNIC Region origin ASes present in the Internet Routing Table: 407
LACNIC Region origin ASes announcing only one prefix: 119
LACNIC Region transit ASes present in the Internet Routing Table: 82
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 16878848
Equivalent to 1 /8s, 1 /16s and 141 /24s
Percentage of available LACNIC address space announced: 50.3
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1243
Total AfriNIC prefixes after maximum aggregation: 697
Prefixes being announced from the AfriNIC address blocks: 844
Unique aggregates announced from the AfriNIC address blocks: 676
AfriNIC Region origin ASes present in the Internet Routing Table: 94
AfriNIC Region origin ASes announcing only one prefix: 21
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2084096
Equivalent to 0 /8s, 31 /16s and 205 /24s
Percentage of available AfriNIC address space announced: 12.4
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 863 4413 165 Data Communications Bureau
1221 796 1184 570 Telstra Pty Ltd
9583 567 47 37 Satyam Infoway Ltd.,
4766 548 3409 270 Korea Internet Exchange for "
4755 415 142 79 Videsh Sanchar Nigam Ltd. Aut
17676 390 5852 60 XTAGE CORPORATION
9443 356 69 80 Primus Telecommunications
2907 354 1857 328 SINET Japan
9929 353 163 39 China Netcom Corp.
703 322 350 247 UUNET
17557 322 23 158 Pakistan Telecom
2764 286 272 232 connect.com.au pty ltd
7474 271 268 201 Optus Communications Pty Ltd
17974 249 62 10 PT TELEKOMUNIKASI INDONESIA
9800 232 381 71 CHINA UNICOM
4802 230 28 139 Wantree Development
9498 227 81 52 BHARTI BT INTERNET LTD.
7563 226 48 164 Korea Internet Infrastructure
4780 216 225 26 Digital United Inc.
10036 216 20 198 C&M Communication Co. Ltd.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1429 6618 987 AT&T WorldNet Services
701 1069 8382 883 UUNET Technologies, Inc.
721 1045 21808 297 DLA Systems Automation Center
1239 931 2883 620 Sprint
2386 862 529 613 AT&T Data Communications Serv
6197 822 384 354 BellSouth Network Solutions,
4323 809 670 220 Time Warner Telecom
18566 755 208 6 Covad Communications
209 653 3422 508 Qwest
3356 644 10930 459 Level 3 Communications, LLC
20115 592 462 317 Charter Communications
3561 546 2369 415 Cable & Wireless USA
852 522 1142 404 Telus Advanced Communications
7843 481 726 92 Adelphia Corp.
6478 461 806 96 AT&T Worldnet Services
7132 452 8292 384 SBC Internet Services
6198 447 382 203 BellSouth Network Solutions,
27364 441 36 19 Armstrong Cable Services
5668 422 87 18 Century Telephone
22909 416 897 60 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 628 2023 519 UUNET - Commercial IP service
3320 305 2997 242 Deutsche Telekom AG
3301 279 1098 270 TeliaNet Sweden
8220 279 464 264 COLT Internet - International
21502 272 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 224 482 220 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 210 722 175 SWIPnet Swedish IP Network
8708 201 116 186 Romania Data Systems S.A.
5515 193 842 140 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3215 172 990 75 France Telecom Transpac
6746 167 46 135 Dynamic Network Technologies,
8866 164 18 21 Bulgarian Telecommunication C
719 159 322 104 LANLINK autonomous system
3269 154 1329 68 TELECOM ITALIA
3300 154 165 78 AUCS Communications Services
25186 144 138 101 France Telecom Transpac's Tra
3303 132 611 128 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 351 139 72 ImpSat
8151 311 471 137 UniNet S.A. de C.V.
16814 218 14 6 NSS, S.A.
11172 215 99 55 Servicios Alestra S.A de C.V
6147 190 92 21 Telefonica Del Peru
7303 173 66 26 Telecom Argentina Stet-France
11664 171 14 20 Keytech SA
6505 138 90 95 Global One Communicaoes Ltda
6503 128 148 85 AVANTEL, S.A.
11992 102 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 97 48 3 Cable-Wireless Panama
11311 86 8 23 Sinectis S.A.
14420 85 6 41 ANDINATEL S.A.
6535 84 7 25 Chilesat Servicios Empresari
13999 83 52 9 Mega Cable S.A. de C.V.
10481 82 32 7 Prima S.A.
4270 80 18 9 Red de Interconexion Universi
5639 77 8 8 Telecommunications Services o
15311 77 23 37 Telefonica Empresas
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 636 226 The Internet Solution
5536 112 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
2905 75 271 68 The Internetworking Company o
20928 55 16 2 Noor Advanced Technologies AS
24835 42 34 7 RAYA Telecom - Egypt
6713 34 38 9 Itissalat Al-MAGHRIB
9129 32 3 2 UUNET Kenya
5713 27 141 24 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
12455 24 4 3 Jambonet Autonomous system
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
8452 17 20 5 TEDATA
21280 17 2 3 Swift Global Kenya Ltd.Is an
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21491 14 1 3 UTL On-line is RF broadband I
15808 13 1 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 755 749 Covad Communications
721 1045 748 DLA Systems Automation Center
4134 863 698 Data Communications Bureau
4323 809 589 Time Warner Telecom
9583 567 530 Satyam Infoway Ltd.,
6197 822 468 BellSouth Network Solutions,
27364 441 422 Armstrong Cable Services
5668 422 404 Century Telephone
7843 481 389 Adelphia Corp.
22773 410 388 Cox Communications, Inc. Atla
6478 461 365 AT&T Worldnet Services
22909 416 356 Comcast Cable Corporation
6467 377 346 E.Spire Communications, Inc.
4755 415 336 Videsh Sanchar Nigam Ltd. Aut
17676 390 330 XTAGE CORPORATION
9929 353 314 China Netcom Corp.
1239 931 311 Sprint
13609 328 294 Choice One Communications Inc
4355 392 293 EarthLink, Inc.
376 399 285 Reseau Interordinateurs Scien
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
64512 PRIVATE 199.213.17.0/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.213.17.128/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.216.97.0/28 15296 Netera Alliance Inc.
65002 PRIVATE 208.179.184.0/24 11509 The Pajo Group
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
65000 PRIVATE 217.68.56.0/22 29263 HAAGnet, municipalit
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
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 DLA Systems Automation Center
192.200.100.0/24 7018 AT&T WorldNet Services
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:7 /11:15 /12:59
/13:138 /14:313 /15:558 /16:8181 /17:2302 /18:4001
/19:9977 /20:10557 /21:8138 /22:11262 /23:13017 /24:83421
/25:267 /26:240 /27:124 /28:60 /29:40 /30:133
/31:0 /32:47
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 740 755 Covad Communications
6197 668 822 BellSouth Network Solutions,
2386 629 862 AT&T Data Communications Serv
7018 583 1429 AT&T WorldNet Services
27364 427 441 Armstrong Cable Services
9583 397 567 Satyam Infoway Ltd.,
702 384 628 UUNET - Commercial IP service
1239 370 931 Sprint
4766 368 548 Korea Internet Exchange for "
5668 365 422 Century Telephone
6198 326 447 BellSouth Network Solutions,
6467 287 377 E.Spire Communications, Inc.
13609 286 328 Choice One Communications Inc
9929 283 353 China Netcom Corp.
6517 281 304 Yipes Communications, Inc.
20115 271 592 Charter Communications
21502 269 272 NUMERICABLE is a cabled netwo
4323 259 809 Time Warner Telecom
11456 256 301 Carolina Online, Inc.
701 250 1069 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1455 13:1 15:5 16:2
17:3 18:4 20:5 24:738 32:67 33:3
38:86 40:54 44:3 47:2 52:3 55:1
56:3 57:23 60:11 61:683 62:512 63:1848
64:2511 65:2080 66:2516 67:473 68:523 69:833
70:44 72:16 80:525 81:581 82:364 83:212
84:69 85:4 128:119 129:163 130:88 131:193
132:36 134:190 135:30 136:187 137:71 138:189
139:35 140:226 141:110 142:136 143:118 144:165
145:40 146:283 147:96 148:262 149:124 150:92
151:63 152:121 153:69 154:2 155:132 156:62
157:71 158:136 159:162 160:61 161:60 162:379
163:83 164:218 165:168 166:125 167:219 168:366
169:125 170:314 171:8 192:5669 193:2985 194:2213
195:1557 196:585 198:3899 199:3307 200:3937 201:30
202:5062 203:5864 204:3576 205:2097 206:2317 207:2587
208:2105 209:3073 210:1544 211:677 212:1171 213:1235
214:229 215:31 216:3735 217:1070 218:180 219:103
220:297 221:79 222:33
End of report
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