Routing Table Report 00:00 GMT Sun 08 Jun, 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: 264657
Prefixes after maximum aggregation: 129078
Deaggregation factor: 2.05
Unique aggregates announced to Internet: 126094
Total ASes present in the Internet Routing Table: 28414
Prefixes per ASN: 9.31
Origin-only ASes present in the Internet Routing Table: 24659
Origin ASes announcing only one prefix: 11939
Transit ASes present in the Internet Routing Table: 3755
Transit-only ASes present in the Internet Routing Table: 82
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 29
Max AS path prepend of ASN (17957) 20
Prefixes from unregistered ASNs in the Routing Table: 637
Unregistered ASNs in the Routing Table: 241
Number of 32-bit ASNs allocated by the RIRs: 49
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: 778
Number of addresses announced to Internet: 1894285227
Equivalent to 112 /8s, 232 /16s and 127 /24s
Percentage of available address space announced: 51.1
Percentage of allocated address space announced: 62.1
Percentage of available address space allocated: 82.3
Percentage of address space in use by end-sites: 72.1
Total number of prefixes smaller than registry allocations: 129433
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 60856
Total APNIC prefixes after maximum aggregation: 22087
APNIC Deaggregation factor: 2.76
Prefixes being announced from the APNIC address blocks: 57973
Unique aggregates announced from the APNIC address blocks: 24969
APNIC Region origin ASes present in the Internet Routing Table: 3266
APNIC Prefixes per ASN: 17.75
APNIC Region origin ASes announcing only one prefix: 868
APNIC Region transit ASes present in the Internet Routing Table: 520
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 24
Number of APNIC addresses announced to Internet: 351813024
Equivalent to 20 /8s, 248 /16s and 61 /24s
Percentage of available APNIC address space announced: 74.9
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, 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: 121058
Total ARIN prefixes after maximum aggregation: 66155
ARIN Deaggregation factor: 1.83
Prefixes being announced from the ARIN address blocks: 90334
Unique aggregates announced from the ARIN address blocks: 34552
ARIN Region origin ASes present in the Internet Routing Table: 12203
ARIN Prefixes per ASN: 7.40
ARIN Region origin ASes announcing only one prefix: 4723
ARIN Region transit ASes present in the Internet Routing Table: 1197
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 358891521
Equivalent to 21 /8s, 100 /16s and 64 /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: 56252
Total RIPE prefixes after maximum aggregation: 34011
RIPE Deaggregation factor: 1.65
Prefixes being announced from the RIPE address blocks: 51628
Unique aggregates announced from the RIPE address blocks: 33927
RIPE Region origin ASes present in the Internet Routing Table: 11442
RIPE Prefixes per ASN: 4.51
RIPE Region origin ASes announcing only one prefix: 5974
RIPE Region transit ASes present in the Internet Routing Table: 1761
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 29
Number of RIPE addresses announced to Internet: 360852032
Equivalent to 21 /8s, 130 /16s and 42 /24s
Percentage of available RIPE address space announced: 82.7
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: 21973
Total LACNIC prefixes after maximum aggregation: 5105
LACNIC Deaggregation factor: 4.30
Prefixes being announced from the LACNIC address blocks: 20201
Unique aggregates announced from the LACNIC address blocks: 10352
LACNIC Region origin ASes present in the Internet Routing Table: 957
LACNIC Prefixes per ASN: 21.11
LACNIC Region origin ASes announcing only one prefix: 300
LACNIC Region transit ASes present in the Internet Routing Table: 163
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 27
Number of LACNIC addresses announced to Internet: 52403077
Equivalent to 3 /8s, 31 /16s and 155 /24s
Percentage of available LACNIC address space announced: 52.1
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: 3886
Total AfriNIC prefixes after maximum aggregation: 1201
AfriNIC Deaggregation factor: 3.24
Prefixes being announced from the AfriNIC address blocks: 4127
Unique aggregates announced from the AfriNIC address blocks: 1867
AfriNIC Region origin ASes present in the Internet Routing Table: 239
AfriNIC Prefixes per ASN: 17.27
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: 4.1
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 12247552
Equivalent to 0 /8s, 186 /16s and 226 /24s
Percentage of available AfriNIC address space announced: 36.5
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
4538 2061 3134 41 China Education and Research
4755 1639 387 87 Videsh Sanchar Nigam Ltd. Aut
9498 1175 550 61 BHARTI BT INTERNET LTD.
9583 1117 111 412 Sify Limited
17488 1099 72 73 Hathway IP Over Cable Interne
4134 835 12917 322 CHINANET-BACKBONE
23577 833 33 740 Korea Telecom (ATM-MPLS)
4766 815 6005 344 Korea Telecom (KIX)
18101 691 167 36 Reliance Infocom Ltd Internet
9829 597 450 12 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 2207 3103 182 bellsouth.net, inc.
4323 1469 1043 378 Time Warner Telecom
2386 1438 644 879 AT&T Data Communications Serv
3549 1429 540 207 Global Crossing
7018 1378 9903 983 AT&T WorldNet Services
11492 1228 148 12 Cable One
1803 1192 7 940 SPRINT
7011 1051 291 584 Citizens Utilities
18566 1044 296 10 Covad Communications
20115 1039 1062 563 Charter Communications
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 413 1772 369 TDC Tele Danmark
3301 338 1460 308 TeliaNet Sweden
8452 327 188 7 TEDATA
3320 316 7043 265 Deutsche Telekom AG
8866 316 77 21 Bulgarian Telecommunication C
5462 297 666 26 Telewest Broadband
3215 287 2742 91 France Telecom Transpac
8551 283 269 38 Bezeq International
680 274 2047 264 DFN-IP service G-WiN
9155 268 45 12 QualityNet AS number
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 1646 229 68 Telecom Argentina Stet-France
8151 1236 2464 227 UniNet S.A. de C.V.
11830 603 299 9 Instituto Costarricense de El
22047 565 270 14 VTR PUNTO NET S.A.
16814 426 27 10 NSS, S.A.
6471 413 85 46 ENTEL CHILE S.A.
11172 412 118 69 Servicios Alestra S.A de C.V
10620 384 98 80 TVCABLE BOGOTA
14117 375 23 9 Telefonica del Sur S.A.
16735 365 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 28 LINKdotNET AS number
3741 282 853 223 The Internet Solution
20858 224 34 3 EgyNet
2018 191 189 82 Tertiary Education Network
5713 163 558 99 Telkom SA Ltd
6713 146 136 12 Itissalat Al-MAGHRIB
33783 134 10 12 EEPAD TISP TELECOM & INTERNET
5536 121 8 16 Internet Egypt Network
29571 103 13 8 Ci Telecom Autonomous system
33776 100 6 3 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
6389 2207 3103 182 bellsouth.net, inc.
4538 2061 3134 41 China Education and Research
7303 1646 229 68 Telecom Argentina Stet-France
4755 1639 387 87 Videsh Sanchar Nigam Ltd. Aut
4323 1469 1043 378 Time Warner Telecom
2386 1438 644 879 AT&T Data Communications Serv
3549 1429 540 207 Global Crossing
7018 1378 9903 983 AT&T WorldNet Services
8151 1236 2464 227 UniNet S.A. de C.V.
11492 1228 148 12 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 2061 2020 China Education and Research
7303 1646 1578 Telecom Argentina Stet-France
4755 1639 1552 Videsh Sanchar Nigam Ltd. Aut
3549 1429 1222 Global Crossing
11492 1228 1216 Cable One
9498 1175 1114 BHARTI BT INTERNET LTD.
4323 1469 1091 Time Warner Telecom
18566 1044 1034 Covad Communications
17488 1099 1026 Hathway IP Over Cable Interne
8151 1236 1009 UniNet S.A. de C.V.
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 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
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 /12:143
/13:284 /14:519 /15:1035 /16:10016 /17:4395 /18:7398
/19:15612 /20:18360 /21:17777 /22:22836 /23:23402 /24:138955
/25:877 /26:1106 /27:369 /28:710 /29:352 /30:210
/31:0 /32:213
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 1355 2207 bellsouth.net, inc.
11492 1210 1228 Cable One
1803 1170 1192 SPRINT
7303 1150 1646 Telecom Argentina Stet-France
2386 1136 1438 AT&T Data Communications Serv
3549 1056 1429 Global Crossing
18566 1025 1044 Covad Communications
4755 989 1639 Videsh Sanchar Nigam Ltd. Aut
4538 975 2061 China Education and Research
9583 971 1117 Sify Limited
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:111 12:2072 13:1 14:1 15:22
16:3 17:5 18:13 20:37 24:1078 25:1
32:199 33:3 38:438 40:93 41:634 43:1
44:2 47:12 52:3 55:4 56:3 57:46
58:577 59:506 60:443 61:1010 62:1146 63:1953
64:3568 65:2425 66:3746 67:1220 68:695 69:2252
70:680 71:126 72:1815 73:5 74:994 75:221
76:313 77:707 78:701 79:187 80:923 81:846
82:581 83:399 84:575 85:1020 86:421 87:690
88:315 89:1259 90:11 91:1289 92:179 93:522
96:32 97:22 98:194 99:3 111:1 114:20
116:667 117:337 118:143 119:439 120:58 121:535
122:785 123:346 124:849 125:1146 128:324 129:205
130:130 131:402 132:67 133:9 134:177 135:33
136:219 137:90 138:152 139:78 140:484 141:98
142:403 143:323 144:352 145:51 146:376 147:153
148:505 149:193 150:129 151:192 152:144 153:136
154:10 155:267 156:174 157:276 158:168 159:222
160:256 161:114 162:232 163:186 164:525 165:458
166:322 167:329 168:614 169:131 170:448 171:29
172:11 189:206 190:2247 192:5801 193:4107 194:3232
195:2509 196:1068 198:3743 199:3265 200:5964 201:1615
202:8154 203:7911 204:3988 205:2111 206:2490 207:2812
208:3519 209:3552 210:2899 211:1182 212:1408 213:1629
214:164 215:49 216:4428 217:1198 218:396 219:507
220:1080 221:468 222:368
End of report