Routing Table Report 00:00 GMT Sat 07 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: 264395
Prefixes after maximum aggregation: 129198
Deaggregation factor: 2.05
Unique aggregates announced to Internet: 126018
Total ASes present in the Internet Routing Table: 28392
Prefixes per ASN: 9.31
Origin-only ASes present in the Internet Routing Table: 24733
Origin ASes announcing only one prefix: 11920
Transit ASes present in the Internet Routing Table: 3659
Transit-only ASes present in the Internet Routing Table: 78
Average AS path length visible in the Internet Routing Table: 3.7
Max AS path length visible: 28
Max AS path prepend of ASN (13791) 17
Prefixes from unregistered ASNs in the Routing Table: 650
Unregistered ASNs in the Routing Table: 245
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: 783
Number of addresses announced to Internet: 1894142126
Equivalent to 112 /8s, 230 /16s and 80 /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: 129245
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 60786
Total APNIC prefixes after maximum aggregation: 22158
APNIC Deaggregation factor: 2.74
Prefixes being announced from the APNIC address blocks: 57908
Unique aggregates announced from the APNIC address blocks: 24965
APNIC Region origin ASes present in the Internet Routing Table: 3270
APNIC Prefixes per ASN: 17.71
APNIC Region origin ASes announcing only one prefix: 868
APNIC Region transit ASes present in the Internet Routing Table: 516
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 25
Number of APNIC addresses announced to Internet: 351776928
Equivalent to 20 /8s, 247 /16s and 176 /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: 120903
Total ARIN prefixes after maximum aggregation: 66198
ARIN Deaggregation factor: 1.83
Prefixes being announced from the ARIN address blocks: 90197
Unique aggregates announced from the ARIN address blocks: 34503
ARIN Region origin ASes present in the Internet Routing Table: 12195
ARIN Prefixes per ASN: 7.40
ARIN Region origin ASes announcing only one prefix: 4726
ARIN Region transit ASes present in the Internet Routing Table: 1150
Average ARIN Region AS path length visible: 3.2
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 358827009
Equivalent to 21 /8s, 99 /16s and 68 /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: 56205
Total RIPE prefixes after maximum aggregation: 34005
RIPE Deaggregation factor: 1.65
Prefixes being announced from the RIPE address blocks: 51570
Unique aggregates announced from the RIPE address blocks: 33884
RIPE Region origin ASes present in the Internet Routing Table: 11428
RIPE Prefixes per ASN: 4.51
RIPE Region origin ASes announcing only one prefix: 5954
RIPE Region transit ASes present in the Internet Routing Table: 1728
Average RIPE Region AS path length visible: 3.8
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 360579648
Equivalent to 21 /8s, 126 /16s and 2 /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: 21966
Total LACNIC prefixes after maximum aggregation: 5114
LACNIC Deaggregation factor: 4.30
Prefixes being announced from the LACNIC address blocks: 20201
Unique aggregates announced from the LACNIC address blocks: 10353
LACNIC Region origin ASes present in the Internet Routing Table: 955
LACNIC Prefixes per ASN: 21.15
LACNIC Region origin ASes announcing only one prefix: 297
LACNIC Region transit ASes present in the Internet Routing Table: 161
Average LACNIC Region AS path length visible: 4.3
Max LACNIC Region AS path length visible: 28
Number of LACNIC addresses announced to Internet: 52367752
Equivalent to 3 /8s, 31 /16s and 17 /24s
Percentage of available LACNIC address space announced: 52.0
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: 3890
Total AfriNIC prefixes after maximum aggregation: 1204
AfriNIC Deaggregation factor: 3.23
Prefixes being announced from the AfriNIC address blocks: 4132
Unique aggregates announced from the AfriNIC address blocks: 1855
AfriNIC Region origin ASes present in the Internet Routing Table: 241
AfriNIC Prefixes per ASN: 17.15
AfriNIC Region origin ASes announcing only one prefix: 75
AfriNIC Region transit ASes present in the Internet Routing Table: 48
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 12243968
Equivalent to 0 /8s, 186 /16s and 212 /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 1585 382 133 Videsh Sanchar Nigam Ltd. Aut
9498 1172 550 61 BHARTI BT INTERNET LTD.
9583 1112 111 414 Sify Limited
17488 1093 72 78 Hathway IP Over Cable Interne
4134 835 12917 322 CHINANET-BACKBONE
23577 834 33 741 Korea Telecom (ATM-MPLS)
4766 815 6005 344 Korea Telecom (KIX)
18101 691 167 36 Reliance Infocom Ltd Internet
9829 598 450 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 2209 3102 180 bellsouth.net, inc.
4323 1467 1045 377 Time Warner Telecom
2386 1433 643 876 AT&T Data Communications Serv
3549 1423 540 207 Global Crossing
7018 1367 9902 972 AT&T WorldNet Services
11492 1228 148 12 Cable One
1803 1194 7 941 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 315 7043 264 Deutsche Telekom AG
8866 315 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 272 46 11 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 1645 229 67 Telecom Argentina Stet-France
8151 1234 2416 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 409 102 68 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 471 61 27 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 2209 3102 180 bellsouth.net, inc.
4538 2061 3134 41 China Education and Research
7303 1645 229 67 Telecom Argentina Stet-France
4755 1585 382 133 Videsh Sanchar Nigam Ltd. Aut
4323 1467 1045 377 Time Warner Telecom
2386 1433 643 876 AT&T Data Communications Serv
3549 1423 540 207 Global Crossing
7018 1367 9902 972 AT&T WorldNet Services
8151 1234 2416 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 1645 1578 Telecom Argentina Stet-France
4755 1585 1452 Videsh Sanchar Nigam Ltd. Aut
3549 1423 1216 Global Crossing
11492 1228 1216 Cable One
9498 1172 1111 BHARTI BT INTERNET LTD.
4323 1467 1090 Time Warner Telecom
18566 1044 1034 Covad Communications
17488 1093 1015 Hathway IP Over Cable Interne
8151 1234 1007 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 /15:1034 /16:10015 /17:4387 /18:7375
/19:15605 /20:18354 /21:17773 /22:22811 /23:23379 /24:138783
/25:878 /26:1108 /27:369 /28:710 /29:355 /30:211
/31:0 /32:214
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 1359 2209 bellsouth.net, inc.
11492 1210 1228 Cable One
1803 1172 1194 SPRINT
7303 1150 1645 Telecom Argentina Stet-France
2386 1132 1433 AT&T Data Communications Serv
3549 1050 1423 Global Crossing
18566 1025 1044 Covad Communications
4538 975 2061 China Education and Research
9583 966 1112 Sify Limited
4755 957 1585 Videsh Sanchar Nigam Ltd. Aut
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:111 12:2066 13:1 14:1 15:22
16:3 17:5 18:13 20:37 24:1077 25:1
32:200 33:3 38:436 40:93 41:638 43:1
44:2 47:12 52:3 55:4 56:3 57:46
58:577 59:500 60:442 61:1001 62:1151 63:1939
64:3552 65:2419 66:3746 67:1220 68:695 69:2233
70:681 71:125 72:1816 73:5 74:968 75:221
76:313 77:707 78:701 79:187 80:915 81:846
82:580 83:399 84:574 85:1012 86:422 87:690
88:315 89:1258 90:11 91:1288 92:180 93:521
96:32 97:22 98:194 99:3 111:1 114:20
116:663 117:336 118:143 119:446 120:58 121:535
122:785 123:345 124:848 125:1144 128:324 129:205
130:131 131:402 132:67 133:9 134:173 135:33
136:219 137:90 138:152 139:78 140:496 141:99
142:401 143:321 144:351 145:51 146:376 147:153
148:506 149:193 150:130 151:192 152:144 153:135
154:11 155:243 156:174 157:273 158:168 159:222
160:256 161:114 162:232 163:186 164:525 165:458
166:333 167:329 168:616 169:131 170:447 171:29
172:11 189:205 190:2250 192:5802 193:4113 194:3231
195:2507 196:1077 198:3748 199:3258 200:5964 201:1615
202:8155 203:7901 204:3983 205:2098 206:2488 207:2813
208:3519 209:3548 210:2897 211:1182 212:1407 213:1630
214:164 215:49 216:4426 217:1197 218:396 219:487
220:1080 221:464 222:368
End of report