Routing Table Report 00:00 GMT Sun 29 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: 266828
Prefixes after maximum aggregation: 129570
Deaggregation factor: 2.06
Unique aggregates announced to Internet: 127136
Total ASes present in the Internet Routing Table: 28636
Prefixes per ASN: 9.32
Origin-only ASes present in the Internet Routing Table: 24817
Origin ASes announcing only one prefix: 12061
Transit ASes present in the Internet Routing Table: 3819
Transit-only ASes present in the Internet Routing Table: 92
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 27
Max AS path prepend of ASN (17957) 20
Prefixes from unregistered ASNs in the Routing Table: 619
Unregistered ASNs in the Routing Table: 229
Number of 32-bit ASNs allocated by the RIRs: 48
Prefixes from 32-bit ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 5
Prefixes being announced from unallocated address space: 792
Number of addresses announced to Internet: 1883704244
Equivalent to 112 /8s, 71 /16s and 11 /24s
Percentage of available address space announced: 50.8
Percentage of allocated address space announced: 61.7
Percentage of available address space allocated: 82.3
Percentage of address space in use by end-sites: 72.4
Total number of prefixes smaller than registry allocations: 130941
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 61664
Total APNIC prefixes after maximum aggregation: 22160
APNIC Deaggregation factor: 2.78
Prefixes being announced from the APNIC address blocks: 58777
Unique aggregates announced from the APNIC address blocks: 24943
APNIC Region origin ASes present in the Internet Routing Table: 3288
APNIC Prefixes per ASN: 17.88
APNIC Region origin ASes announcing only one prefix: 888
APNIC Region transit ASes present in the Internet Routing Table: 527
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 360169376
Equivalent to 21 /8s, 119 /16s and 191 /24s
Percentage of available APNIC address space announced: 76.7
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: 121352
Total ARIN prefixes after maximum aggregation: 66224
ARIN Deaggregation factor: 1.83
Prefixes being announced from the ARIN address blocks: 90241
Unique aggregates announced from the ARIN address blocks: 34834
ARIN Region origin ASes present in the Internet Routing Table: 12265
ARIN Prefixes per ASN: 7.36
ARIN Region origin ASes announcing only one prefix: 4745
ARIN Region transit ASes present in the Internet Routing Table: 1212
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 355393537
Equivalent to 21 /8s, 46 /16s and 224 /24s
Percentage of available ARIN address space announced: 73.0
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: 57001
Total RIPE prefixes after maximum aggregation: 34300
RIPE Deaggregation factor: 1.66
Prefixes being announced from the RIPE address blocks: 52468
Unique aggregates announced from the RIPE address blocks: 34428
RIPE Region origin ASes present in the Internet Routing Table: 11562
RIPE Prefixes per ASN: 4.54
RIPE Region origin ASes announcing only one prefix: 6040
RIPE Region transit ASes present in the Internet Routing Table: 1792
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 362028352
Equivalent to 21 /8s, 148 /16s and 29 /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, 47104-48127
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: 22132
Total LACNIC prefixes after maximum aggregation: 5178
LACNIC Deaggregation factor: 4.27
Prefixes being announced from the LACNIC address blocks: 20360
Unique aggregates announced from the LACNIC address blocks: 10534
LACNIC Region origin ASes present in the Internet Routing Table: 968
LACNIC Prefixes per ASN: 21.03
LACNIC Region origin ASes announcing only one prefix: 310
LACNIC Region transit ASes present in the Internet Routing Table: 165
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 27
Number of LACNIC addresses announced to Internet: 52751500
Equivalent to 3 /8s, 36 /16s and 236 /24s
Percentage of available LACNIC address space announced: 52.4
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: 4068
Total AfriNIC prefixes after maximum aggregation: 1205
AfriNIC Deaggregation factor: 3.38
Prefixes being announced from the AfriNIC address blocks: 4343
Unique aggregates announced from the AfriNIC address blocks: 1888
AfriNIC Region origin ASes present in the Internet Routing Table: 244
AfriNIC Prefixes per ASN: 17.80
AfriNIC Region origin ASes announcing only one prefix: 78
AfriNIC Region transit ASes present in the Internet Routing Table: 50
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 12237824
Equivalent to 0 /8s, 186 /16s and 188 /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 2089 3134 41 China Education and Research
4755 1662 387 87 Videsh Sanchar Nigam Ltd. Aut
17488 1188 82 91 Hathway IP Over Cable Interne
9583 1157 110 418 Sify Limited
9498 1081 550 63 BHARTI BT INTERNET LTD.
4134 842 12995 328 CHINANET-BACKBONE
23577 833 34 738 Korea Telecom (ATM-MPLS)
4766 814 6005 344 Korea Telecom (KIX)
4780 709 351 63 Digital United Inc.
18101 688 167 33 Reliance Infocom Ltd Internet
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 2671 3260 199 bellsouth.net, inc.
2386 1496 664 877 AT&T Data Communications Serv
4323 1471 1045 377 Time Warner Telecom
3549 1430 540 206 Global Crossing
7018 1400 9910 977 AT&T WorldNet Services
11492 1232 150 12 Cable One
1803 1221 7 967 SPRINT
1785 1080 510 104 AppliedTheory Corporation
20115 1048 1068 561 Charter Communications
18566 1045 296 10 Covad 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 417 1788 372 TDC Tele Danmark
8452 344 188 11 TEDATA
3301 335 1460 305 TeliaNet Sweden
3320 319 7046 268 Deutsche Telekom AG
8866 319 77 21 Bulgarian Telecommunication C
5462 308 666 27 Telewest Broadband
3215 286 2742 89 France Telecom Transpac
8551 286 269 38 Bezeq International
680 274 2047 264 DFN-IP service G-WiN
6746 267 125 242 Dynamic Network Technologies,
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 1660 231 65 Telecom Argentina Stet-France
8151 1273 2464 227 UniNet S.A. de C.V.
11830 604 299 9 Instituto Costarricense de El
22047 565 270 14 VTR PUNTO NET S.A.
16814 426 27 10 NSS, S.A.
6471 411 85 48 ENTEL CHILE S.A.
11172 410 118 70 Servicios Alestra S.A de C.V
10620 402 104 65 TVCABLE BOGOTA
14117 375 23 9 Telefonica del Sur S.A.
16735 372 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 475 61 30 LINKdotNET AS number
20858 397 34 3 EgyNet
3741 277 853 224 The Internet Solution
2018 201 205 85 Tertiary Education Network
5713 155 558 93 Telkom SA Ltd
6713 144 135 11 Itissalat Al-MAGHRIB
33783 135 10 12 EEPAD TISP TELECOM & INTERNET
5536 121 8 16 Internet Egypt Network
29571 102 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 2671 3260 199 bellsouth.net, inc.
4538 2089 3134 41 China Education and Research
4755 1662 387 87 Videsh Sanchar Nigam Ltd. Aut
7303 1660 231 65 Telecom Argentina Stet-France
2386 1496 664 877 AT&T Data Communications Serv
4323 1471 1045 377 Time Warner Telecom
3549 1430 540 206 Global Crossing
7018 1400 9910 977 AT&T WorldNet Services
8151 1273 2464 227 UniNet S.A. de C.V.
11492 1232 150 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 2089 2048 China Education and Research
7303 1660 1595 Telecom Argentina Stet-France
4755 1662 1575 Videsh Sanchar Nigam Ltd. Aut
3549 1430 1224 Global Crossing
11492 1232 1220 Cable One
17488 1188 1097 Hathway IP Over Cable Interne
4323 1471 1094 Time Warner Telecom
8151 1273 1046 UniNet S.A. de C.V.
18566 1045 1035 Covad Communications
9498 1081 1018 BHARTI BT INTERNET LTD.
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 7018 AT&T WorldNet Servic
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
10.29.246.47/32 286 KPNQwest Backbone AS
10.29.246.48/32 286 KPNQwest Backbone AS
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
Complete listing at http://thyme.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.48.244.0/23 7843 Adelphia Corp.
24.51.159.0/24 7843 Adelphia Corp.
24.54.23.0/24 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
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 /8:19 /9:9 /10:16 /11:45 /12:144
/13:286 /14:520 /15:1046 /16:10035 /17:4374 /18:7404
/19:15668 /20:18454 /21:17990 /22:23063 /23:23630 /24:140209
/25:909 /26:1106 /27:377 /28:723 /29:361 /30:216
/31:0 /32:224
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 1670 2671 bellsouth.net, inc.
11492 1212 1232 Cable One
1803 1199 1221 SPRINT
2386 1190 1496 AT&T Data Communications Serv
7303 1163 1660 Telecom Argentina Stet-France
3549 1062 1430 Global Crossing
18566 1026 1045 Covad Communications
4755 1009 1662 Videsh Sanchar Nigam Ltd. Aut
9583 1008 1157 Sify Limited
17488 1002 1188 Hathway IP Over Cable Interne
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:7 8:120 12:2079 13:2 14:1 15:22
16:3 17:5 18:13 20:37 24:1077 25:1
32:200 38:443 40:92 41:643 43:1 44:2
47:12 52:3 55:3 56:3 57:48 58:530
59:529 60:448 61:1010 62:1218 63:1961 64:3531
65:2381 66:3583 67:1226 68:694 69:2280 70:686
71:120 72:1815 73:5 74:1030 75:160 76:315
77:739 78:706 79:197 80:955 81:849 82:628
83:399 84:576 85:1020 86:418 87:707 88:336
89:1290 90:14 91:1308 92:207 93:597 94:52
96:37 97:27 98:168 99:3 112:1 113:1
114:57 116:764 117:340 118:183 119:452 120:55
121:556 122:796 123:365 124:860 125:1158 128:362
129:205 130:131 131:409 132:67 133:9 134:177
135:33 136:220 137:87 138:145 139:100 140:489
141:98 142:415 143:306 144:362 145:51 146:374
147:156 148:506 149:201 150:129 151:191 152:134
153:143 154:11 155:277 156:174 157:278 158:186
159:240 160:276 161:114 162:239 163:187 164:521
165:461 166:334 167:327 168:630 169:136 170:453
171:30 172:10 189:262 190:2323 192:5797 193:4180
194:3266 195:2571 196:1050 198:3742 199:3278 200:5944
201:1625 202:8150 203:8023 204:3976 205:2144 206:2476
207:2793 208:3568 209:3579 210:2958 211:1213 212:1448
213:1652 214:148 215:49 216:4429 217:1206 218:396
219:500 220:1076 221:471 222:372
End of report