Weekly Routing Table Report
Routing Table Analysis
cscora at thyme.apnic.net
Fri Jul 12 06:05:10 EDT 2002
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 a graphical representation, please see http://www.apnic.net/stats/bgp.
If you have any comments please contact Philip Smith <pfs at cisco.com>.
Routing Table Report 20:00 +10GMT Fri 12 Jul, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113808
Prefixes after maximum aggregation: 73632
Unique aggregates announced to Internet: 53854
Total ASes present in the Internet Routing Table: 13333
Origin-only ASes present in the Internet Routing Table: 11543
Origin ASes announcing only one prefix: 5110
Transit ASes present in the Internet Routing Table: 1790
Transit-only ASes present in the Internet Routing Table: 50
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 22
Illegal AS announcements present in the Routing Table: 8
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 35
Number of addresses announced to Internet: 1180975672
Equivalent to 70 /8s, 100 /16s and 66 /24s
Percentage of available address space announced: 31.9
Percentage of allocated address space announced: 58.9
Percentage of available address space allocated: 54.1
Total number of prefixes smaller than registry allocations: 46022
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18655
Total APNIC prefixes after maximum aggregation: 11077
Prefixes being announced from the APNIC address blocks: 17207
Unique aggregates announced from the APNIC address blocks: 10502
APNIC Region origin ASes present in the Internet Routing Table: 1558
APNIC Region origin ASes announcing only one prefix: 506
APNIC Region transit ASes present in the Internet Routing Table: 275
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 13
Number of APNIC addresses announced to Internet: 88702624
Equivalent to 5 /8s, 73 /16s and 126 /24s
Percentage of available APNIC address space announced: 58.3
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 75831
Total ARIN prefixes after maximum aggregation: 48036
Prefixes being announced from the ARIN address blocks: 53877
Unique aggregates announced from the ARIN address blocks: 17995
ARIN Region origin ASes present in the Internet Routing Table: 7845
ARIN Region origin ASes announcing only one prefix: 2517
ARIN Region transit ASes present in the Internet Routing Table: 773
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 189355856
Equivalent to 11 /8s, 73 /16s and 87 /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 - 26623
ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19315
Total RIPE prefixes after maximum aggregation: 14519
Prefixes being announced from the RIPE address blocks: 16050
Unique aggregates announced from the RIPE address blocks: 9821
RIPE Region origin ASes present in the Internet Routing Table: 3881
RIPE Region origin ASes announcing only one prefix: 2087
RIPE Region transit ASes present in the Internet Routing Table: 719
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 116950816
Equivalent to 6 /8s, 248 /16s and 135 /24s
Percentage of available RIPE address space announced: 77.5
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
RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1257 1207 899 Telstra Pty Ltd
4538 466 1258 18 China Education and Research
703 408 358 323 UUNET Technologies, Inc.
2907 366 1865 341 SINET Japan
2764 361 358 332 connect.com.au pty ltd
7474 311 291 207 Optus Communications Pty Ltd
17557 307 20 109 Pakistan Telecom
4755 301 116 82 Videsh Sanchar Nigam Ltd. Aut
4134 289 2112 106 Data Communications Bureau
9443 253 45 67 Primus Telecommunications
4766 248 1506 155 Korea Internet Exchange for "
4814 212 79 14 China Telecom (Group) - Beiji
9583 176 32 5 Satyam Infoway Ltd.,
17676 160 2482 27 XTAGE CORPORATION
9768 143 384 73 Korea Telecom
7657 129 22 87 The Internet Group Limited
9800 125 191 18 CHINA UNICOM
4780 123 186 39 Digital United Inc.
4713 115 1009 106 NTT Communications Corporatio
4739 111 56 102 Commerical Internet eXchange
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 940 2443 778 UUNET Technologies, Inc.
3301 396 924 346 TeliaNet Sweden
3352 277 535 29 Ibernet, Internet Access Netw
3215 266 628 166 France Telecom / &Equant
3320 254 1946 193 Deutsche Telekom AG
5515 245 783 172 Sonera Finland Autonomous Sys
680 233 2149 230 DFN-IP service G-WiN
1257 206 430 203 SWIPnet Swedish IP Network
5400 205 83 94 Concert European Core Network
719 189 306 128 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
8708 139 23 136 Romania Data Systems S.A.
3303 137 547 136 Swisscom Ltd
2856 128 787 118 BTnet UK Regional network
12302 122 17 34 MobiFon S.A.
3269 113 690 68 TELECOM ITALIA
3246 112 317 107 Song Networks / Clinet
5511 109 192 87 France Telecom
3233 104 10 9 RNC - Romanian Natioanal R&D
2874 102 85 39 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1852 9240 1378 UUNET Technologies, Inc.
7018 1294 7390 935 AT&T
3908 923 1643 501 Supernet, Inc.
1239 845 3355 660 Sprint
852 757 1175 451 Telus Advanced Communications
1 698 8075 447 GENUITY
7843 643 360 238 Adelphia Corp.
4323 626 438 257 Time Warner Communications, I
7132 579 659 133 Southwestern Bell Internet Se
7046 558 885 357 UUNET Technologies, Inc.
209 535 2010 347 Qwest
690 515 74 327 Merit Network
7066 482 203 252 Virginia Polytechnic Institut
7029 463 165 56 Alltel Information Services,
3549 440 839 316 Global Crossing
2149 438 180 332 Performance Systems, Inc.
2914 409 2100 386 Verio, Inc.
15290 379 297 194 AT&T Canada IES
6197 370 547 36 BellSouth Network Solutions,
6347 347 370 77 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 466 448 China Education and Research
7132 579 446 Southwestern Bell Internet Se
3908 923 422 Supernet, Inc.
7029 463 407 Alltel Information Services,
7843 643 405 Adelphia Corp.
4323 626 369 Time Warner Communications, I
7018 1294 359 AT&T
1221 1257 358 Telstra Pty Ltd
6197 370 334 BellSouth Network Solutions,
852 757 306 Telus Advanced Communications
11371 292 286 Rhythms NetConnections
4151 287 271 USDA
6347 347 270 SAVVIS Communications Corpora
4355 308 256 EarthLink, Inc.
1 698 251 GENUITY
3352 277 248 Ibernet, Internet Access Netw
7066 482 230 Virginia Polytechnic Institut
18566 229 225 Covad Communications
4755 301 219 Videsh Sanchar Nigam Ltd. Aut
7303 273 211 Telecom Argentina Stet-France
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
55000 RESERVED 81.5.64.0/20 5467 MIPT-NET
65003 PRIVATE 202.92.84.0/24 9837 Powertel Ltd
65003 PRIVATE 202.92.84.0/22 9837 Powertel Ltd
65003 PRIVATE 202.92.85.0/24 9837 Powertel Ltd
65003 PRIVATE 202.92.119.0/24 9837 Powertel Ltd
65003 PRIVATE 203.56.32.0/24 9837 Powertel Ltd
65003 PRIVATE 203.56.33.0/24 9837 Powertel Ltd
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
134.137.0.0/16 7170 AT&T Government Markets
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
138.94.0.0/16 1 GENUITY
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
192.5.154.0/24 16588 Spider Web Hosting Solutions
192.44.0.0/19 702 UUNET Technologies, Inc.
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.83.16.0/20 5515 Sonera Finland Autonomous Sys
192.83.32.0/19 5515 Sonera Finland Autonomous Sys
192.83.96.0/22 5515 Sonera Finland Autonomous Sys
192.83.100.0/24 5515 Sonera Finland Autonomous Sys
192.91.198.0/24 2568 CTS Network Services
192.92.167.0/24 297 NASA Science Network
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.135.248.0/23 109 Cisco Systems, Inc.
192.136.79.0/24 719 LANLINK autonomous system
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.139.62.0/24 6539 GT Group Telecom Services Cor
192.140.0.0/16 5511 France Telecom
192.152.213.0/24 1239 Sprint
192.153.136.0/21 568 DISO-UNRRA
192.156.0.0/19 568 DISO-UNRRA
192.172.0.0/19 568 DISO-UNRRA
192.195.253.0/24 237 Merit Network
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
192.243.36.0/23 7168 Northwest Link
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:6 /10:7 /11:12 /12:36
/13:87 /14:233 /15:416 /16:7249 /17:1451 /18:2650
/19:7678 /20:7363 /21:5171 /22:7936 /23:9664 /24:63168
/25:204 /26:168 /27:86 /28:68 /29:45 /30:74
/31:0 /32:17
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 583 940 UUNET Technologies, Inc.
3908 510 923 Supernet, Inc.
701 507 1852 UUNET Technologies, Inc.
690 457 515 Merit Network
7843 449 643 Adelphia Corp.
7066 387 482 Virginia Polytechnic Institut
7029 366 463 Alltel Information Services,
7018 350 1294 AT&T
6197 256 370 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
6198 238 310 BellSouth Network Solutions,
3301 234 396 TeliaNet Sweden
18566 225 229 Covad Communications
1239 217 845 Sprint
7046 215 558 UUNET Technologies, Inc.
209 211 535 Qwest
3352 201 277 Ibernet, Internet Access Netw
1580 200 213 HQ, 5th Signal Command
3215 199 266 France Telecom / &Equant
1 191 698 GENUITY
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:504 13:10 15:2 17:6
20:3 24:798 25:1 32:41 38:9 40:6
44:1 57:13 61:277 62:221 63:1883 64:1258
65:1378 66:979 67:89 68:63 80:248 81:33
128:63 129:133 130:22 131:53 132:11 133:2
134:126 135:8 136:243 137:94 138:150 139:69
140:143 141:123 142:78 143:39 144:151 145:14
146:187 147:138 148:241 149:84 150:41 151:67
152:264 153:34 154:14 155:107 156:77 157:127
158:69 159:135 160:18 161:70 162:214 163:94
164:259 165:133 166:222 167:172 168:292 169:60
170:252 171:3 192:5456 193:2367 194:2093 195:905
196:410 198:3643 199:3192 200:2584 202:3313 203:4691
204:3281 205:2182 206:2686 207:2539 208:2647 209:2670
210:600 211:230 212:913 213:663 214:9 215:19
216:2854 217:471 218:27
End of report
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