From: Routing Analysis Role Account
Subject: [bgp-stats] Routing Table Report - Japan view
To: bgp-stats@lists.apnic.net
Message-ID: <200902281814.n1SIE1F4026745@thyme.apnic.net>
Routing Table Report 04:00 +10GMT Sun 01 Mar, 2009
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 281459
Prefixes after maximum aggregation: 133681
Deaggregation factor: 2.11
Unique aggregates announced to Internet: 137911
Total ASes present in the Internet Routing Table: 30689
Prefixes per ASN: 9.17
Origin-only ASes present in the Internet Routing Table: 26709
Origin ASes announcing only one prefix: 12989
Transit ASes present in the Internet Routing Table: 3980
Transit-only ASes present in the Internet Routing Table: 95
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (18678) 21
Prefixes from unregistered ASNs in the Routing Table: 499
Unregistered ASNs in the Routing Table: 170
Number of 32-bit ASNs allocated by the RIRs: 116
Prefixes from 32-bit ASNs in the Routing Table: 17
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 212
Number of addresses announced to Internet: 2008987072
Equivalent to 119 /8s, 190 /16s and 181 /24s
Percentage of available address space announced: 54.2
Percentage of allocated address space announced: 63.4
Percentage of available address space allocated: 85.5
Percentage of address space in use by end-sites: 76.0
Total number of prefixes smaller than registry allocations: 138403
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 65060
Total APNIC prefixes after maximum aggregation: 23338
APNIC Deaggregation factor: 2.79
Prefixes being announced from the APNIC address blocks: 61901
Unique aggregates announced from the APNIC address blocks: 28207
APNIC Region origin ASes present in the Internet Routing Table: 3541
APNIC Prefixes per ASN: 17.48
APNIC Region origin ASes announcing only one prefix: 954
APNIC Region transit ASes present in the Internet Routing Table: 540
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 403874208
Equivalent to 24 /8s, 18 /16s and 161 /24s
Percentage of available APNIC address space announced: 80.2
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
APNIC Address Blocks 58/8, 59/8, 60/8, 61/8, 110/8, 111/8, 112/8,
113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8,
120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8,
202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8,
221/8, 222/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 123914
Total ARIN prefixes after maximum aggregation: 65374
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 93402
Unique aggregates announced from the ARIN address blocks: 35782
ARIN Region origin ASes present in the Internet Routing Table: 12802
ARIN Prefixes per ASN: 7.30
ARIN Region origin ASes announcing only one prefix: 4923
ARIN Region transit ASes present in the Internet Routing Table: 1239
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 416388160
Equivalent to 24 /8s, 209 /16s and 148 /24s
Percentage of available ARIN address space announced: 80.1
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, 39936-40959, 46080-47103
ARIN Address Blocks 24/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8,
69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8,
76/8, 96/8, 97/8, 98/8, 99/8, 108/8, 173/8,
174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8,
208/8, 209/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 64077
Total RIPE prefixes after maximum aggregation: 37517
RIPE Deaggregation factor: 1.71
Prefixes being announced from the RIPE address blocks: 58625
Unique aggregates announced from the RIPE address blocks: 38957
RIPE Region origin ASes present in the Internet Routing Table: 12736
RIPE Prefixes per ASN: 4.60
RIPE Region origin ASes announcing only one prefix: 6682
RIPE Region transit ASes present in the Internet Routing Table: 1918
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 389861856
Equivalent to 23 /8s, 60 /16s and 209 /24s
Percentage of available RIPE address space announced: 83.0
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
40960-45055, 47104-49151
RIPE Address Blocks 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8,
178/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 23340
Total LACNIC prefixes after maximum aggregation: 5687
LACNIC Deaggregation factor: 4.10
Prefixes being announced from the LACNIC address blocks: 21524
Unique aggregates announced from the LACNIC address blocks: 11864
LACNIC Region origin ASes present in the Internet Routing Table: 1070
LACNIC Prefixes per ASN: 20.12
LACNIC Region origin ASes announcing only one prefix: 345
LACNIC Region transit ASes present in the Internet Routing Table: 177
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 61109632
Equivalent to 3 /8s, 164 /16s and 117 /24s
Percentage of available LACNIC address space announced: 60.7
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 186/8, 187/8, 189/8, 190/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 4600
Total AfriNIC prefixes after maximum aggregation: 1379
AfriNIC Deaggregation factor: 3.34
Prefixes being announced from the AfriNIC address blocks: 4334
Unique aggregates announced from the AfriNIC address blocks: 1395
AfriNIC Region origin ASes present in the Internet Routing Table: 285
AfriNIC Prefixes per ASN: 15.21
AfriNIC Region origin ASes announcing only one prefix: 85
AfriNIC Region transit ASes present in the Internet Routing Table: 55
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 10044160
Equivalent to 0 /8s, 153 /16s and 67 /24s
Percentage of available AfriNIC address space announced: 29.9
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1684 6928 395 Korea Telecom (KIX)
17488 1527 119 96 Hathway IP Over Cable Interne
4755 1216 430 182 TATA Communications formerly
9583 1092 86 519 Sify Limited
4134 926 16239 366 CHINANET-BACKBONE
18101 751 198 28 Reliance Infocom Ltd Internet
7545 731 158 101 TPG Internet Pty Ltd
9498 691 297 53 BHARTI BT INTERNET LTD.
24560 675 228 174 Bharti Airtel Ltd.
9829 638 491 18 BSNL National Internet Backbo
Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 4363 3688 342 bellsouth.net, inc.
209 2833 4147 615 Qwest
4323 1772 1081 377 Time Warner Telecom
1785 1752 733 139 PaeTec Communications, Inc.
20115 1607 1427 719 Charter Communications
7018 1442 5879 1005 AT&T WorldNet Services
2386 1261 681 900 AT&T Data Communications Serv
6478 1256 296 522 AT&T Worldnet Services
11492 1202 192 12 Cable One
3356 1133 10975 435 Level 3 Communications, LLC
Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1233 188 7 TEDATA
30890 445 88 202 SC Kappa Invexim SRL
3292 444 1762 389 TDC Tele Danmark
12479 397 578 6 Uni2 Autonomous System
3320 350 7081 293 Deutsche Telekom AG
3301 340 1669 305 TeliaNet Sweden
8866 337 109 22 Bulgarian Telecommunication C
3215 334 2978 103 France Telecom Transpac
29049 328 26 3 AzerSat LLC.
8551 313 288 40 Bezeq International
Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1431 2829 233 UniNet S.A. de C.V.
10620 792 175 99 TVCABLE BOGOTA
11830 696 299 9 Instituto Costarricense de El
22047 606 302 14 VTR PUNTO NET S.A.
7303 513 256 80 Telecom Argentina Stet-France
6471 438 95 32 ENTEL CHILE S.A.
16814 427 27 11 NSS, S.A.
11172 405 118 74 Servicios Alestra S.A de C.V
7738 397 794 28 Telecomunicacoes da Bahia S.A
28573 373 506 23 NET Servicos de Comunicao S.A
Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 665 75 29 LINKdotNET AS number
20858 292 34 3 This AS will be used to conne
3741 271 857 229 The Internet Solution
2018 242 215 142 Tertiary Education Network
33783 150 10 8 EEPAD TISP TELECOM & INTERNET
6713 144 135 11 Itissalat Al-MAGHRIB
29571 130 15 8 Ci Telecom Autonomous system
5536 119 7 20 Internet Egypt Network
33776 118 6 3 Starcomms Nigeria Limited
5713 117 523 65 Telkom SA Ltd
Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 4363 3688 342 bellsouth.net, inc.
209 2833 4147 615 Qwest
4323 1772 1081 377 Time Warner Telecom
1785 1752 733 139 PaeTec Communications, Inc.
4766 1684 6928 395 Korea Telecom (KIX)
20115 1607 1427 719 Charter Communications
17488 1527 119 96 Hathway IP Over Cable Interne
7018 1442 5879 1005 AT&T WorldNet Services
8151 1431 2829 233 UniNet S.A. de C.V.
2386 1261 681 900 AT&T Data Communications Serv
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
209 2833 2218 Qwest
1785 1752 1613 PaeTec Communications, Inc.
17488 1527 1431 Hathway IP Over Cable Interne
4323 1772 1395 Time Warner Telecom
4766 1684 1289 Korea Telecom (KIX)
8452 1233 1226 TEDATA
8151 1431 1198 UniNet S.A. de C.V.
11492 1202 1190 Cable One
18566 1061 1051 Covad Communications
4755 1216 1034 TATA Communications formerly
Complete listing at http://thyme.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
32326 UNALLOCATED 12.40.49.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.75.116.0/22 10796 ServiceCo LLC - Road Runner
24.75.160.0/19 7843 Adelphia Corp.
24.246.0.0/17 7018 AT&T WorldNet Services
24.246.128.0/18 7018 AT&T WorldNet Services
41.220.16.0/20 8668 TelOne Zimbabwe P/L
41.223.112.0/22 5713 Telkom SA Ltd
41.223.188.0/24 22351 Intelsat
41.223.189.0/24 26452 Local Communications Networks
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
Complete listing at http://thyme.apnic.net/current/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:10 /10:20 /11:55 /12:162
/13:317 /14:577 /15:1128 /16:10337 /17:4596 /18:7921
/19:16922 /20:19955 /21:19670 /22:24950 /23:25172 /24:147371
/25:715 /26:853 /27:586 /28:105 /29:8 /30:3
/31:0 /32:7
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2842 4363 bellsouth.net, inc.
209 1571 2833 Qwest
4766 1391 1684 Korea Telecom (KIX)
17488 1296 1527 Hathway IP Over Cable Interne
8452 1212 1233 TEDATA
11492 1162 1202 Cable One
1785 1158 1752 PaeTec Communications, Inc.
18566 1042 1061 Covad Communications
2386 954 1261 AT&T Data Communications Serv
9583 944 1092 Sify Limited
Complete listing at http://thyme.apnic.net/current/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:13 8:170 12:2204 13:2 15:20 16:3
17:4 20:35 24:1120 32:51 38:541 40:96
41:1977 43:1 44:2 47:19 52:3 55:2
56:3 57:25 58:530 59:620 60:458 61:1097
62:1110 63:2013 64:3531 65:2425 66:3548 67:1446
68:660 69:2472 70:504 71:158 72:1617 73:2
74:1423 75:201 76:310 77:787 78:560 79:326
80:971 81:834 82:554 83:415 84:586 85:1011
86:398 87:626 88:349 89:1411 90:42 91:2017
92:272 93:1130 94:1134 95:464 96:94 97:181
98:192 99:16 109:1 112:74 113:78 114:197
115:230 116:1125 117:490 118:286 119:638 120:133
121:707 122:962 123:526 124:938 125:1289 128:219
129:222 130:135 131:411 132:73 133:9 134:336
135:38 136:223 137:139 138:145 139:79 140:416
141:105 142:384 143:322 144:315 145:40 146:372
147:151 148:534 149:233 150:141 151:199 152:151
153:133 154:10 155:260 156:170 157:294 158:127
159:242 160:282 161:138 162:269 163:144 164:517
165:503 166:274 167:357 168:678 169:163 170:473
171:39 172:10 173:233 174:86 178:1 186:9
187:43 188:6 189:301 190:2614 192:5812 193:4217
194:3326 195:2719 196:1055 198:3699 199:3287 200:5499
201:1509 202:7832 203:8017 204:3937 205:2159 206:2347
207:2822 208:3854 209:3464 210:2644 211:1124 212:1502
213:1698 214:67 215:26 216:4549 217:1217 218:366
219:410 220:1210 221:456 222:319
End of report
経路は既に28万経路。
Deaggregation factorをみるとARIN地域、RIPE/NCC地域はそこそこ良いが
APNIC地域は良くない。AfriNIC地域やLACNIC地域に関しては悪い状態。
しかしながら経済状況やIPプレフィックスの取得状況も違うので一概に酷いとは言えないが・・・。
この状況でIPプレフィックスの移転/譲渡が始まるともっと細切れになる恐れも。
超巨大ルータを買える超大手企業以外はPeeringの世界から撤退して超大手企業のTier-2以下になるしか方策がなくなるかもしれない。
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