Weekly Routing Table Report
Routing Table Analysis
cscora at thyme.apnic.net
Fri Jun 28 06:05:12 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 28 Jun, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113461
Prefixes after maximum aggregation: 73552
Unique aggregates announced to Internet: 54191
Total ASes present in the Internet Routing Table: 13300
Origin-only ASes present in the Internet Routing Table: 11517
Origin ASes announcing only one prefix: 5099
Transit ASes present in the Internet Routing Table: 1783
Transit-only ASes present in the Internet Routing Table: 49
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 16
Illegal AS announcements present in the Routing Table: 3
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 36
Number of addresses announced to Internet: 1195266012
Equivalent to 71 /8s, 62 /16s and 79 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 60.1
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 45931
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18539
Total APNIC prefixes after maximum aggregation: 11056
Prefixes being announced from the APNIC address blocks: 17010
Unique aggregates announced from the APNIC address blocks: 10442
APNIC Region origin ASes present in the Internet Routing Table: 1544
APNIC Region origin ASes announcing only one prefix: 501
APNIC Region transit ASes present in the Internet Routing Table: 275
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 87593312
Equivalent to 5 /8s, 56 /16s and 145 /24s
Percentage of available APNIC address space announced: 64.8
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 220/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 75682
Total ARIN prefixes after maximum aggregation: 47908
Prefixes being announced from the ARIN address blocks: 53850
Unique aggregates announced from the ARIN address blocks: 17635
ARIN Region origin ASes present in the Internet Routing Table: 7832
ARIN Region origin ASes announcing only one prefix: 2510
ARIN Region transit ASes present in the Internet Routing Table: 771
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 192501588
Equivalent to 11 /8s, 121 /16s and 87 /24s
Percentage of available ARIN address space announced: 71.7
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: 19238
Total RIPE prefixes after maximum aggregation: 14588
Prefixes being announced from the RIPE address blocks: 15939
Unique aggregates announced from the RIPE address blocks: 10568
RIPE Region origin ASes present in the Internet Routing Table: 3876
RIPE Region origin ASes announcing only one prefix: 2088
RIPE Region transit ASes present in the Internet Routing Table: 722
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 111988256
Equivalent to 6 /8s, 172 /16s and 206 /24s
Percentage of available RIPE address space announced: 74.2
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 1265 1223 905 Telstra Pty Ltd
4538 424 1194 16 China Education and Research
703 400 357 318 UUNET Technologies, Inc.
2764 369 359 338 connect.com.au pty ltd
2907 366 1864 340 SINET Japan
7474 313 292 208 Optus Communications Pty Ltd
17557 302 20 114 Pakistan Telecom
4755 296 117 82 Videsh Sanchar Nigam Ltd. Aut
4134 289 2114 105 Data Communications Bureau
9443 252 45 66 Primus Telecommunications
4713 226 1009 106 NTT Communications Corporatio
4766 216 1504 154 Korea Internet Exchange for "
4814 201 79 14 China Telecom (Group) - Beiji
9583 177 32 5 Satyam Infoway Ltd.,
7539 155 219 149 TANet2, sponsored by NSC, TAI
17676 152 2354 23 XTAGE CORPORATION
9768 145 386 74 Korea Telecom
7657 139 22 88 The Internet Group Limited
9800 125 191 18 CHINA UNICOM
4621 112 11 61 UNINET-TH
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1023 2615 846 UUNET Technologies, Inc.
3301 402 925 351 TeliaNet Sweden
3352 277 535 26 Ibernet, Internet Access Netw
3215 266 598 165 France Telecom / &Equant
3320 241 1947 193 Deutsche Telekom AG
680 233 2149 230 DFN-IP service G-WiN
5515 206 783 172 Sonera Finland Autonomous Sys
5400 205 83 94 Concert European Core Network
1257 204 430 201 SWIPnet Swedish IP Network
719 192 306 130 LANLINK autonomous system
786 177 1857 176 The JANET IP Service
8708 141 23 138 Romania Data Systems S.A.
3303 136 546 135 Swisscom Ltd
12302 128 18 35 MobiFon S.A.
2856 126 786 116 BTnet UK Regional network
3269 111 690 68 TELECOM ITALIA
3246 110 301 105 Song Networks / Clinet
8297 105 52 58 Teleglobe Autonomous System i
2874 103 85 39 Global One Services AB
3233 102 6 56 RNC - Romanian Natioanal R&D
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1862 9258 1387 UUNET Technologies, Inc.
7018 1296 7469 933 AT&T
3908 916 1642 496 Supernet, Inc.
1239 820 3360 645 Sprint
1 699 8131 450 GENUITY
852 678 1173 448 Telus Advanced Communications
4323 632 438 259 Time Warner Communications, I
209 613 2003 350 Qwest
7843 608 354 242 Adelphia Corp.
7046 590 876 377 UUNET Technologies, Inc.
7132 579 659 133 Southwestern Bell Internet Se
690 511 75 317 Merit Network
7029 478 167 58 Alltel Information Services,
7066 468 202 250 Virginia Polytechnic Institut
3549 439 836 314 Global Crossing
2149 422 195 320 Performance Systems, Inc.
2914 389 2100 382 Verio, Inc.
15290 381 297 196 AT&T Canada IES
6197 347 248 169 BellSouth Network Solutions,
6347 342 370 80 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7132 579 446 Southwestern Bell Internet Se
3908 916 420 Supernet, Inc.
7029 478 420 Alltel Information Services,
4538 424 408 China Education and Research
4323 632 373 Time Warner Communications, I
7843 608 366 Adelphia Corp.
7018 1296 363 AT&T
1221 1265 360 Telstra Pty Ltd
11371 292 286 Rhythms NetConnections
4151 289 273 USDA
209 613 263 Qwest
6347 342 262 SAVVIS Communications Corpora
4355 306 253 EarthLink, Inc.
3352 277 251 Ibernet, Internet Access Netw
1 699 249 GENUITY
852 678 230 Telus Advanced Communications
4454 248 225 OIR Telecommunications, State
18566 228 224 Covad Communications
7066 468 218 Virginia Polytechnic Institut
6198 322 217 BellSouth Network Solutions,
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65111 PRIVATE 64.200.152.0/23 7911 Williams Communicati
65111 PRIVATE 64.200.154.0/23 7911 Williams Communicati
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
192.26.98.0/24 1239 Sprint
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 /8:20 /9:6 /10:7 /11:12 /12:36
/13:87 /14:232 /15:417 /16:7241 /17:1449 /18:2640
/19:7692 /20:7306 /21:5130 /22:7870 /23:9605 /24:63043
/25:188 /26:168 /27:78 /28:83 /29:44 /30:83
/31:0 /32:24
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 631 1023 UUNET Technologies, Inc.
701 514 1862 UUNET Technologies, Inc.
3908 504 916 Supernet, Inc.
690 452 511 Merit Network
7843 418 608 Adelphia Corp.
7029 376 478 Alltel Information Services,
7066 373 468 Virginia Polytechnic Institut
7018 353 1296 AT&T
209 270 613 Qwest
6197 249 347 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
3301 238 402 TeliaNet Sweden
6198 235 322 BellSouth Network Solutions,
7046 232 590 UUNET Technologies, Inc.
18566 224 228 Covad Communications
6517 213 235 Yipes Communications, Inc.
1239 203 820 Sprint
1580 203 233 HQ, 5th Signal Command
3352 201 277 Ibernet, Internet Access Netw
3215 200 266 France Telecom / &Equant
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:502 13:10 15:2 17:6
20:2 24:799 25:1 32:41 38:9 40:6
44:1 57:13 61:269 62:217 63:1905 64:1244
65:1405 66:998 67:89 68:47 80:259 81:30
128:60 129:133 130:22 131:47 132:11 133:3
134:121 135:8 136:244 137:92 138:145 139:69
140:175 141:121 142:83 143:40 144:153 145:14
146:180 147:138 148:223 149:89 150:40 151:67
152:261 153:33 154:14 155:106 156:77 157:127
158:69 159:128 160:18 161:69 162:214 163:100
164:261 165:134 166:223 167:172 168:131 169:60
170:358 171:3 192:5482 193:2360 194:2072 195:938
196:397 198:3649 199:3193 200:2555 202:3235 203:4654
204:3249 205:2160 206:2690 207:2602 208:2674 209:2647
210:585 211:226 212:897 213:646 214:9 215:19
216:2826 217:458 218:44 219:81
End of report
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