Routing Table Report 04:00 +10GMT Fri 28 Mar, 2008
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 250342
Prefixes after maximum aggregation: 126111
Deaggregation factor: 1.99
Unique aggregates announced to Internet: 121819
Total ASes present in the Internet Routing Table: 27748
Prefixes per ASN: 9.02
Origin-only ASes present in the Internet Routing Table: 24182
Origin ASes announcing only one prefix: 11214
Transit ASes present in the Internet Routing Table: 3566
Transit-only ASes present in the Internet Routing Table: 77
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (43380) 13
Prefixes from unregistered ASNs in the Routing Table: 25285
Unregistered ASNs in the Routing Table: 1920
Number of 32-bit ASNs allocated by the RIRs: 46
Prefixes from 32-bit ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 855
Number of addresses announced to Internet: 1851726624
Equivalent to 110 /8s, 95 /16s and 27 /24s
Percentage of available address space announced: 50.0
Percentage of allocated address space announced: 61.3
Percentage of available address space allocated: 81.4
Percentage of address space in use by end-sites: 71.0
Total number of prefixes smaller than registry allocations: 119184
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 42327
Total APNIC prefixes after maximum aggregation: 13448
APNIC Deaggregation factor: 3.15
Prefixes being announced from the APNIC address blocks: 54491
Unique aggregates announced from the APNIC address blocks: 23515
APNIC Region origin ASes present in the Internet Routing Table: 1906
APNIC Prefixes per ASN: 28.59
APNIC Region origin ASes announcing only one prefix: 551
APNIC Region transit ASes present in the Internet Routing Table: 349
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 337497952
Equivalent to 20 /8s, 29 /16s and 207 /24s
Percentage of available APNIC address space announced: 77.4
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: 106607
Total ARIN prefixes after maximum aggregation: 58779
ARIN Deaggregation factor: 1.81
Prefixes being announced from the ARIN address blocks: 85439
Unique aggregates announced from the ARIN address blocks: 33810
ARIN Region origin ASes present in the Internet Routing Table: 11652
ARIN Prefixes per ASN: 7.33
ARIN Region origin ASes announcing only one prefix: 4522
ARIN Region transit ASes present in the Internet Routing Table: 1039
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 360706432
Equivalent to 21 /8s, 127 /16s and 241 /24s
Percentage of available ARIN address space announced: 74.1
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
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: 53271
Total RIPE prefixes after maximum aggregation: 33073
RIPE Deaggregation factor: 1.61
Prefixes being announced from the RIPE address blocks: 48838
Unique aggregates announced from the RIPE address blocks: 32748
RIPE Region origin ASes present in the Internet Routing Table: 11083
RIPE Prefixes per ASN: 4.41
RIPE Region origin ASes announcing only one prefix: 5781
RIPE Region transit ASes present in the Internet Routing Table: 1690
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 350412288
Equivalent to 20 /8s, 226 /16s and 222 /24s
Percentage of available RIPE address space announced: 80.3
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
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: 19241
Total LACNIC prefixes after maximum aggregation: 4803
LACNIC Deaggregation factor: 4.01
Prefixes being announced from the LACNIC address blocks: 17575
Unique aggregates announced from the LACNIC address blocks: 9580
LACNIC Region origin ASes present in the Internet Routing Table: 884
LACNIC Prefixes per ASN: 19.88
LACNIC Region origin ASes announcing only one prefix: 280
LACNIC Region transit ASes present in the Internet Routing Table: 154
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 49881344
Equivalent to 2 /8s, 249 /16s and 33 /24s
Percentage of available LACNIC address space announced: 49.6
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: 3610
Total AfriNIC prefixes after maximum aggregation: 1123
AfriNIC Deaggregation factor: 3.21
Prefixes being announced from the AfriNIC address blocks: 4013
Unique aggregates announced from the AfriNIC address blocks: 1813
AfriNIC Region origin ASes present in the Internet Routing Table: 233
AfriNIC Prefixes per ASN: 17.22
AfriNIC Region origin ASes announcing only one prefix: 80
AfriNIC Region transit ASes present in the Internet Routing Table: 46
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 10165504
Equivalent to 0 /8s, 155 /16s and 29 /24s
Percentage of available AfriNIC address space announced: 30.3
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
4755 1617 387 87 Videsh Sanchar Nigam Ltd. Aut
9583 1149 133 154 Sify Limited
9498 1128 550 63 BHARTI BT INTERNET LTD.
17488 1044 67 83 Hathway IP Over Cable Interne
4134 859 12487 319 CHINANET-BACKBONE
4766 849 6005 340 Korea Telecom (KIX)
18101 672 126 51 Reliance Infocom Ltd Internet
9829 596 450 12 BSNL National Internet Backbo
4812 562 969 92 China Telecom (Shanghai)
1221 543 1950 418 Telstra Pty Ltd
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
7018 1425 5927 1006 AT&T WorldNet Services
2386 1399 658 852 AT&T Data Communications Serv
4323 1395 1028 368 Time Warner Telecom
11492 1216 146 23 Cable One
7011 1082 315 615 Citizens Utilities
18566 1046 296 10 Covad Communications
1785 1007 479 107 AppliedTheory Corporation
6197 990 728 477 BellSouth Network Solutions,
174 965 6834 812 Cogent Communications
22773 905 2394 66 Cox Communications, Inc.
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
3292 396 1776 360 TDC Tele Danmark
8452 358 188 7 TEDATA
3301 341 1459 310 TeliaNet Sweden
3320 322 7045 267 Deutsche Telekom AG
8866 293 78 24 Bulgarian Telecommunication C
5462 288 666 26 Telewest Broadband
3215 278 2671 91 France Telecom Transpac
6746 264 127 242 Dynamic Network Technologies,
680 259 2046 258 DFN-IP service G-WiN
9155 255 46 11 QualityNet AS number
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 1189 2448 220 UniNet S.A. de C.V.
11830 556 299 9 Instituto Costarricense de El
7303 452 220 60 Telecom Argentina Stet-France
16814 426 27 10 NSS, S.A.
11172 409 117 69 Servicios Alestra S.A de C.V
6471 396 85 39 ENTEL CHILE S.A.
10620 395 103 54 TVCABLE BOGOTA
14117 352 25 15 Telefonica del Sur S.A.
22047 322 270 14 VTR PUNTO NET S.A.
10481 310 152 10 Prima 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 452 60 27 LINKdotNET AS number
3741 287 869 223 The Internet Solution
2018 257 276 112 Tertiary Education Network
20858 216 34 3 EgyNet
6713 143 135 11 Itissalat Al-MAGHRIB
33783 130 9 16 EEPAD TISP TELECOM & INTERNET
5536 121 8 16 Internet Egypt Network
33776 99 6 7 Starcomms Nigeria Limited
24835 89 48 7 RAYA Telecom - Egypt
2905 83 176 74 The Internetworking Company o
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 1772 2992 85 bellsouth.net, inc.
23577 1636 34 699 Korea Telecom (ATM-MPLS)
4755 1617 387 87 Videsh Sanchar Nigam Ltd. Aut
7018 1425 5927 1006 AT&T WorldNet Services
2386 1399 658 852 AT&T Data Communications Serv
4323 1395 1028 368 Time Warner Telecom
11492 1216 146 23 Cable One
8151 1189 2448 220 UniNet S.A. de C.V.
9583 1149 133 154 Sify Limited
9498 1128 550 63 BHARTI BT INTERNET LTD.
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1617 1530 Videsh Sanchar Nigam Ltd. Aut
11492 1216 1193 Cable One
9498 1128 1065 BHARTI BT INTERNET LTD.
18566 1046 1036 Covad Communications
4323 1395 1027 Time Warner Telecom
9583 1149 995 Sify Limited
8151 1189 969 UniNet S.A. de C.V.
17488 1044 961 Hathway IP Over Cable Interne
17676 1018 952 Softbank BB Corp.
23577 1636 937 Korea Telecom (ATM-MPLS)
Complete listing at http://thyme.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
14780 UNALLOCATED 4.79.181.0/24 10310 Yahoo!
12180 UNALLOCATED 4.79.248.0/24 1239 Sprint
26478 UNALLOCATED 8.7.228.0/24 6461 AboveNet Communicati
12180 UNALLOCATED 8.10.16.0/24 3549 Global Crossing
12180 UNALLOCATED 8.10.58.0/23 3549 Global Crossing
14779 UNALLOCATED 8.12.144.0/24 10310 Yahoo!
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
22492 UNALLOCATED 12.2.46.0/24 1239 Sprint
14984 UNALLOCATED 12.2.192.0/24 7132 SBC Internet Service
15132 UNALLOCATED 12.9.150.0/24 701 UUNET Technologies,
Complete listing at http://thyme.apnic.net/current/data-badAS
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/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 /9:9 /10:16 /11:41 /12:137
/13:277 /14:499 /15:998 /16:9807 /17:4312 /18:7284
/19:15272 /20:17526 /21:16757 /22:21284 /23:22338 /24:131487
/25:776 /26:894 /27:484 /28:107 /29:9 /30:1
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1202 1216 Cable One
2386 1100 1399 AT&T Data Communications Serv
18566 1027 1046 Covad Communications
9583 987 1149 Sify Limited
7011 964 1082 Citizens Utilities
4755 961 1617 Videsh Sanchar Nigam Ltd. Aut
6478 893 894 AT&T Worldnet Services
17488 859 1044 Hathway IP Over Cable Interne
23577 809 1636 Korea Telecom (ATM-MPLS)
9498 803 1128 BHARTI BT INTERNET LTD.
Complete listing at http://thyme.apnic.net/current/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:102 11:1 12:2001 13:1 15:20
16:3 17:6 18:13 20:35 24:1048 25:1
32:60 33:4 38:405 40:95 41:633 44:2
47:8 52:3 55:3 56:3 57:22 58:512
59:429 60:423 61:986 62:1093 63:1956 64:3356
65:2363 66:3602 67:1076 68:654 69:2108 70:541
71:128 72:1538 73:6 74:899 75:221 76:276
77:629 78:548 79:121 80:899 81:831 82:606
83:370 84:546 85:937 86:388 87:633 88:320
89:1210 90:11 91:1133 92:236 93:169 96:19
97:16 98:108 99:3 116:581 117:279 118:99
119:363 121:466 122:721 123:305 124:834 125:1121
128:325 129:199 130:124 131:401 132:66 133:9
134:188 135:32 136:222 137:119 138:149 139:65
140:482 141:110 142:379 143:279 144:348 145:54
146:338 147:133 148:499 149:179 150:121 151:160
152:142 153:127 154:11 155:266 156:207 157:254
158:167 159:223 160:245 161:110 162:207 163:218
164:573 165:433 166:296 167:314 168:594 169:130
170:427 171:28 172:3 189:163 190:1565 192:5770
193:4110 194:3263 195:2376 196:1072 198:3763 199:3225
200:5510 201:1324 202:7543 203:7785 204:3989 205:2094
206:2412 207:2715 208:3214 209:3469 210:2525 211:1034
212:1321 213:1610 214:457 215:48 216:4280 217:1221
218:349 219:404 220:1059 221:402 222:312
End of report
