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[bgp-stats] Routing Table Report - RouteViews-3 view
Routing Table Report 00:00 GMT Wed 21 May, 2008
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 266056
Prefixes after maximum aggregation: 128561
Deaggregation factor: 2.07
Unique aggregates announced to Internet: 124057
Total ASes present in the Internet Routing Table: 28264
Prefixes per ASN: 9.41
Origin-only ASes present in the Internet Routing Table: 24570
Origin ASes announcing only one prefix: 11846
Transit ASes present in the Internet Routing Table: 3694
Transit-only ASes present in the Internet Routing Table: 86
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 27
Max AS path prepend of ASN (12026) 22
Prefixes from unregistered ASNs in the Routing Table: 620
Unregistered ASNs in the Routing Table: 236
Number of 32-bit ASNs allocated by the RIRs: 47
Prefixes from 32-bit ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 4
Prefixes being announced from unallocated address space: 789
Number of addresses announced to Internet: 1887602734
Equivalent to 112 /8s, 130 /16s and 136 /24s
Percentage of available address space announced: 50.9
Percentage of allocated address space announced: 62.5
Percentage of available address space allocated: 81.4
Percentage of address space in use by end-sites: 71.9
Total number of prefixes smaller than registry allocations: 130515
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 63210
Total APNIC prefixes after maximum aggregation: 21654
APNIC Deaggregation factor: 2.92
Prefixes being announced from the APNIC address blocks: 60362
Unique aggregates announced from the APNIC address blocks: 23806
APNIC Region origin ASes present in the Internet Routing Table: 3248
APNIC Prefixes per ASN: 18.58
APNIC Region origin ASes announcing only one prefix: 866
APNIC Region transit ASes present in the Internet Routing Table: 506
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 349447840
Equivalent to 20 /8s, 212 /16s and 38 /24s
Percentage of available APNIC address space announced: 80.1
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, 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: 120899
Total ARIN prefixes after maximum aggregation: 66400
ARIN Deaggregation factor: 1.82
Prefixes being announced from the ARIN address blocks: 89770
Unique aggregates announced from the ARIN address blocks: 34311
ARIN Region origin ASes present in the Internet Routing Table: 12193
ARIN Prefixes per ASN: 7.36
ARIN Region origin ASes announcing only one prefix: 4692
ARIN Region transit ASes present in the Internet Routing Table: 1181
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 25
Number of ARIN addresses announced to Internet: 358874369
Equivalent to 21 /8s, 99 /16s and 253 /24s
Percentage of available ARIN address space announced: 73.8
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, 173/8, 174/8,
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: 55577
Total RIPE prefixes after maximum aggregation: 33752
RIPE Deaggregation factor: 1.65
Prefixes being announced from the RIPE address blocks: 50914
Unique aggregates announced from the RIPE address blocks: 33604
RIPE Region origin ASes present in the Internet Routing Table: 11338
RIPE Prefixes per ASN: 4.49
RIPE Region origin ASes announcing only one prefix: 5907
RIPE Region transit ASes present in the Internet Routing Table: 1732
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 357373504
Equivalent to 21 /8s, 77 /16s and 22 /24s
Percentage of available RIPE address space announced: 81.9
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, 47104-48127
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, 193/8,
194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 21936
Total LACNIC prefixes after maximum aggregation: 5063
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 20283
Unique aggregates announced from the LACNIC address blocks: 10073
LACNIC Region origin ASes present in the Internet Routing Table: 947
LACNIC Prefixes per ASN: 21.42
LACNIC Region origin ASes announcing only one prefix: 307
LACNIC Region transit ASes present in the Internet Routing Table: 163
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 27
Number of LACNIC addresses announced to Internet: 51352072
Equivalent to 3 /8s, 15 /16s and 146 /24s
Percentage of available LACNIC address space announced: 51.0
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: 3817
Total AfriNIC prefixes after maximum aggregation: 1192
AfriNIC Deaggregation factor: 3.20
Prefixes being announced from the AfriNIC address blocks: 4139
Unique aggregates announced from the AfriNIC address blocks: 1849
AfriNIC Region origin ASes present in the Internet Routing Table: 238
AfriNIC Prefixes per ASN: 17.39
AfriNIC Region origin ASes announcing only one prefix: 74
AfriNIC Region transit ASes present in the Internet Routing Table: 46
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 12220160
Equivalent to 0 /8s, 186 /16s and 119 /24s
Percentage of available AfriNIC address space announced: 36.4
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 3586 12661 319 CHINANET-BACKBONE
4538 2038 3134 41 China Education and Research
4755 1636 387 90 Videsh Sanchar Nigam Ltd. Aut
9498 1176 550 62 BHARTI BT INTERNET LTD.
9583 1145 140 15 Sify Limited
17488 1064 70 76 Hathway IP Over Cable Interne
23577 840 34 746 Korea Telecom (ATM-MPLS)
4766 813 6005 344 Korea Telecom (KIX)
18101 680 149 51 Reliance Infocom Ltd Internet
9829 598 451 13 BSNL National Internet Backbo
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 1856 3045 168 bellsouth.net, inc.
4323 1460 1046 380 Time Warner Telecom
2386 1440 645 881 AT&T Data Communications Serv
3549 1430 540 208 Global Crossing
7018 1386 10044 984 AT&T WorldNet Services
11492 1221 148 14 Cable One
1803 1159 6 910 SPRINT
7011 1088 302 617 Citizens Utilities
18566 1044 296 10 Covad Communications
1785 1021 510 105 AppliedTheory Corporation
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3292 412 1788 369 TDC Tele Danmark
9198 394 74 9 Kazakhtelecom Data Network Ad
8452 356 188 7 TEDATA
3301 338 1458 306 TeliaNet Sweden
3320 316 7043 265 Deutsche Telekom AG
5462 297 666 26 Telewest Broadband
8866 297 77 21 Bulgarian Telecommunication C
8551 282 269 37 Bezeq International
3215 279 2686 90 France Telecom Transpac
680 275 2047 265 DFN-IP service G-WiN
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7303 1622 225 65 Telecom Argentina Stet-France
8151 1214 2464 227 UniNet S.A. de C.V.
11830 601 299 9 Instituto Costarricense de El
22047 565 270 14 VTR PUNTO NET S.A.
16814 426 27 10 NSS, S.A.
6471 420 85 47 ENTEL CHILE S.A.
11172 409 117 67 Servicios Alestra S.A de C.V
10620 390 99 69 TVCABLE BOGOTA
14117 375 23 9 Telefonica del Sur S.A.
16735 361 92 11 Companhia de Telecomunicacoes
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 472 61 27 LINKdotNET AS number
3741 277 853 223 The Internet Solution
20858 223 34 3 EgyNet
2018 182 173 82 Tertiary Education Network
5713 174 575 108 Telkom SA Ltd
6713 144 135 11 Itissalat Al-MAGHRIB
33783 134 10 12 EEPAD TISP TELECOM & INTERNET
5536 121 8 16 Internet Egypt Network
29571 100 13 8 Ci Telecom Autonomous system
33776 97 6 7 Starcomms Nigeria Limited
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 3586 12661 319 CHINANET-BACKBONE
4538 2038 3134 41 China Education and Research
6389 1856 3045 168 bellsouth.net, inc.
4755 1636 387 90 Videsh Sanchar Nigam Ltd. Aut
7303 1622 225 65 Telecom Argentina Stet-France
4323 1460 1046 380 Time Warner Telecom
2386 1440 645 881 AT&T Data Communications Serv
3549 1430 540 208 Global Crossing
7018 1386 10044 984 AT&T WorldNet Services
11492 1221 148 14 Cable One
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 2038 1997 China Education and Research
6389 1856 1688 bellsouth.net, inc.
7303 1622 1557 Telecom Argentina Stet-France
4755 1636 1546 Videsh Sanchar Nigam Ltd. Aut
3549 1430 1222 Global Crossing
11492 1221 1207 Cable One
9583 1145 1130 Sify Limited
9498 1176 1114 BHARTI BT INTERNET LTD.
4323 1460 1080 Time Warner Telecom
18566 1044 1034 Covad Communications
Complete listing at http://thyme.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
16927 UNALLOCATED 12.0.252.0/23 701 UUNET Technologies,
22492 UNALLOCATED 12.2.46.0/24 1239 Sprint
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13632 UNALLOCATED 12.20.55.0/24 6517 Yipes Communications
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic
13632 UNALLOCATED 12.31.25.0/24 6517 Yipes Communications
27220 UNALLOCATED 12.35.204.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.246.49/32 286 KPNQwest Backbone AS
10.29.248.65/32 286 KPNQwest Backbone AS
10.29.248.71/32 286 KPNQwest Backbone AS
172.30.254.0/24 4771 Netgate
Complete listing at http://thyme.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.51.159.0/24 7843 Adelphia Corp.
24.54.224.0/19 20001 HoldCo LLC - Road Runner
24.75.160.0/19 7843 Adelphia Corp.
24.75.192.0/18 7843 Adelphia Corp.
24.142.40.0/21 7018 AT&T WorldNet Services
24.142.160.0/19 7018 AT&T WorldNet Services
24.246.0.0/17 7018 AT&T WorldNet Services
24.246.128.0/18 7018 AT&T WorldNet Services
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
63.140.213.0/24 22555 Universal Talkware Corporatio
Complete listing at http://thyme.apnic.net/rviews/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 /8:20 /9:9 /10:16 /11:43 /12:142
/13:286 /14:519 /15:1015 /16:9983 /17:4464 /18:7428
/19:15654 /20:18443 /21:17976 /22:23064 /23:23571 /24:139758
/25:845 /26:990 /27:371 /28:695 /29:350 /30:208
/31:0 /32:206
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
4134 2339 3586 CHINANET-BACKBONE
11492 1204 1221 Cable One
6389 1143 1856 bellsouth.net, inc.
1803 1139 1159 SPRINT
2386 1138 1440 AT&T Data Communications Serv
7303 1128 1622 Telecom Argentina Stet-France
3549 1057 1430 Global Crossing
18566 1025 1044 Covad Communications
4755 985 1636 Videsh Sanchar Nigam Ltd. Aut
9583 983 1145 Sify Limited
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:109 12:2061 13:1 14:1 15:20
16:3 17:5 18:13 20:37 24:1070 25:1
32:199 33:3 38:424 40:93 41:646 44:2
47:12 52:3 55:3 56:3 57:46 58:579
59:510 60:442 61:1190 62:1146 63:1963 64:3626
65:2421 66:3696 67:1199 68:678 69:2231 70:635
71:114 72:1753 73:5 74:970 75:215 76:320
77:666 78:599 79:153 80:882 81:866 82:620
83:403 84:574 85:1008 86:412 87:655 88:337
89:1292 90:11 91:1225 92:269 93:449 96:29
97:17 98:167 99:3 114:5 116:652 117:338
118:178 119:425 120:37 121:535 122:770 123:348
124:874 125:1445 128:325 129:203 130:130 131:405
132:66 133:9 134:174 135:33 136:220 137:88
138:151 139:71 140:484 141:98 142:401 143:293
144:358 145:50 146:377 147:152 148:501 149:185
150:131 151:180 152:144 153:134 154:11 155:272
156:174 157:272 158:163 159:221 160:255 161:113
162:213 163:186 164:522 165:458 166:320 167:323
168:625 169:131 170:444 171:28 172:23 189:178
190:2194 192:5796 193:4112 194:3248 195:2480 196:1051
198:3747 199:3264 200:6056 201:1629 202:8238 203:7848
204:4008 205:2095 206:2496 207:2823 208:3504 209:3542
210:2875 211:1213 212:1397 213:1630 214:472 215:50
216:4425 217:1208 218:516 219:529 220:1198 221:524
222:594
End of report
