Routing Table Report 04:00 +10GMT Tue 01 Apr, 2008
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 250613
Prefixes after maximum aggregation: 125982
Deaggregation factor: 1.99
Unique aggregates announced to Internet: 121735
Total ASes present in the Internet Routing Table: 27765
Prefixes per ASN: 9.03
Origin-only ASes present in the Internet Routing Table: 24185
Origin ASes announcing only one prefix: 11220
Transit ASes present in the Internet Routing Table: 3580
Transit-only ASes present in the Internet Routing Table: 78
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 18
Max AS path prepend of ASN (43380) 13
Prefixes from unregistered ASNs in the Routing Table: 25065
Unregistered ASNs in the Routing Table: 1916
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: 0
Prefixes being announced from unallocated address space: 849
Number of addresses announced to Internet: 1853013792
Equivalent to 110 /8s, 114 /16s and 191 /24s
Percentage of available address space announced: 50.0
Percentage of allocated address space announced: 61.4
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: 119501
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 42481
Total APNIC prefixes after maximum aggregation: 13348
APNIC Deaggregation factor: 3.18
Prefixes being announced from the APNIC address blocks: 54704
Unique aggregates announced from the APNIC address blocks: 23336
APNIC Region origin ASes present in the Internet Routing Table: 1912
APNIC Prefixes per ASN: 28.61
APNIC Region origin ASes announcing only one prefix: 551
APNIC Region transit ASes present in the Internet Routing Table: 352
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 337576544
Equivalent to 20 /8s, 31 /16s and 2 /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: 106750
Total ARIN prefixes after maximum aggregation: 58812
ARIN Deaggregation factor: 1.82
Prefixes being announced from the ARIN address blocks: 85557
Unique aggregates announced from the ARIN address blocks: 33903
ARIN Region origin ASes present in the Internet Routing Table: 11667
ARIN Prefixes per ASN: 7.33
ARIN Region origin ASes announcing only one prefix: 4531
ARIN Region transit ASes present in the Internet Routing Table: 1044
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 361095552
Equivalent to 21 /8s, 133 /16s and 225 /24s
Percentage of available ARIN address space announced: 74.2
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: 53564
Total RIPE prefixes after maximum aggregation: 33074
RIPE Deaggregation factor: 1.62
Prefixes being announced from the RIPE address blocks: 48861
Unique aggregates announced from the RIPE address blocks: 32711
RIPE Region origin ASes present in the Internet Routing Table: 11088
RIPE Prefixes per ASN: 4.41
RIPE Region origin ASes announcing only one prefix: 5785
RIPE Region transit ASes present in the Internet Routing Table: 1696
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 350996480
Equivalent to 20 /8s, 235 /16s and 200 /24s
Percentage of available RIPE address space announced: 80.5
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: 19182
Total LACNIC prefixes after maximum aggregation: 4822
LACNIC Deaggregation factor: 3.98
Prefixes being announced from the LACNIC address blocks: 17529
Unique aggregates announced from the LACNIC address blocks: 9625
LACNIC Region origin ASes present in the Internet Routing Table: 883
LACNIC Prefixes per ASN: 19.85
LACNIC Region origin ASes announcing only one prefix: 276
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: 49936896
Equivalent to 2 /8s, 249 /16s and 250 /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: 3570
Total AfriNIC prefixes after maximum aggregation: 1124
AfriNIC Deaggregation factor: 3.18
Prefixes being announced from the AfriNIC address blocks: 3962
Unique aggregates announced from the AfriNIC address blocks: 1801
AfriNIC Region origin ASes present in the Internet Routing Table: 231
AfriNIC Prefixes per ASN: 17.15
AfriNIC Region origin ASes announcing only one prefix: 77
AfriNIC Region transit ASes present in the Internet Routing Table: 45
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 10132736
Equivalent to 0 /8s, 154 /16s and 157 /24s
Percentage of available AfriNIC address space announced: 30.2
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 1619 387 87 Videsh Sanchar Nigam Ltd. Aut
9583 1150 140 16 Sify Limited
9498 1140 550 63 BHARTI BT INTERNET LTD.
17488 1045 67 83 Hathway IP Over Cable Interne
4134 856 12471 318 CHINANET-BACKBONE
4766 850 6005 341 Korea Telecom (KIX)
18101 673 126 52 Reliance Infocom Ltd Internet
9829 596 450 12 BSNL National Internet Backbo
4812 562 969 92 China Telecom (Shanghai)
1221 539 1950 415 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 1433 5927 1016 AT&T WorldNet Services
2386 1398 658 851 AT&T Data Communications Serv
4323 1397 1028 368 Time Warner Telecom
11492 1220 147 23 Cable One
7011 1080 315 614 Citizens Utilities
18566 1044 296 10 Covad Communications
1785 1013 479 107 AppliedTheory Corporation
6197 990 740 466 BellSouth Network Solutions,
174 966 6834 812 Cogent Communications
20115 914 858 507 Charter Communications
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 399 1779 363 TDC Tele Danmark
8452 352 188 7 TEDATA
3301 339 1443 308 TeliaNet Sweden
3320 323 7045 268 Deutsche Telekom AG
8866 293 78 24 Bulgarian Telecommunication C
5462 292 666 26 Telewest Broadband
8551 279 267 42 Bezeq International
3215 278 2671 91 France Telecom Transpac
6746 268 127 245 Dynamic Network Technologies,
680 259 2046 258 DFN-IP service G-WiN
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 1188 2448 222 UniNet S.A. de C.V.
11830 555 299 9 Instituto Costarricense de El
7303 452 220 60 Telecom Argentina Stet-France
16814 426 27 10 NSS, S.A.
11172 410 117 70 Servicios Alestra S.A de C.V
10620 399 104 51 TVCABLE BOGOTA
6471 396 85 39 ENTEL CHILE S.A.
14117 352 25 15 Telefonica del Sur S.A.
22047 323 270 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 453 61 27 LINKdotNET AS number
3741 288 869 224 The Internet Solution
20858 216 34 3 EgyNet
2018 198 276 111 Tertiary Education Network
6713 143 135 11 Itissalat Al-MAGHRIB
33783 130 9 21 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 1920 3009 94 bellsouth.net, inc.
23577 1634 34 699 Korea Telecom (ATM-MPLS)
4755 1619 387 87 Videsh Sanchar Nigam Ltd. Aut
7018 1433 5927 1016 AT&T WorldNet Services
2386 1398 658 851 AT&T Data Communications Serv
4323 1397 1028 368 Time Warner Telecom
11492 1220 147 23 Cable One
8151 1188 2448 222 UniNet S.A. de C.V.
9583 1150 140 16 Sify Limited
9498 1140 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 1619 1532 Videsh Sanchar Nigam Ltd. Aut
11492 1220 1197 Cable One
9583 1150 1134 Sify Limited
9498 1140 1077 BHARTI BT INTERNET LTD.
18566 1044 1034 Covad Communications
4323 1397 1029 Time Warner Telecom
8151 1188 966 UniNet S.A. de C.V.
17488 1045 962 Hathway IP Over Cable Interne
17676 1018 952 Softbank BB Corp.
23577 1634 935 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 /14:498 /15:1001 /16:9815 /17:4312 /18:7284
/19:15262 /20:17576 /21:16771 /22:21336 /23:22320 /24:131659
/25:778 /26:894 /27:483 /28:107 /29:9 /30:1
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1206 1220 Cable One
2386 1098 1398 AT&T Data Communications Serv
18566 1025 1044 Covad Communications
9583 985 1150 Sify Limited
4755 962 1619 Videsh Sanchar Nigam Ltd. Aut
7011 962 1080 Citizens Utilities
6478 893 894 AT&T Worldnet Services
17488 860 1045 Hathway IP Over Cable Interne
9498 812 1140 BHARTI BT INTERNET LTD.
23577 808 1634 Korea Telecom (ATM-MPLS)
Complete listing at http://thyme.apnic.net/current/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:102 12:1998 13:1 15:20 16:3
17:6 18:13 20:35 24:1047 25:1 32:60
33:4 38:407 40:95 41:629 44:2 47:8
52:3 55:3 56:3 57:22 58:515 59:429
60:423 61:987 62:1089 63:1956 64:3360 65:2378
66:3614 67:1098 68:651 69:2118 70:539 71:127
72:1541 73:6 74:903 75:221 76:284 77:614
78:550 79:131 80:889 81:828 82:604 83:369
84:561 85:948 86:396 87:630 88:323 89:1212
90:11 91:1134 92:240 93:198 96:21 97:16
98:108 99:3 116:584 117:280 118:103 119:375
120:1 121:473 122:730 123:309 124:839 125:1125
128:323 129:199 130:124 131:405 132:69 133:9
134:188 135:32 136:221 137:119 138:155 139:65
140:484 141:110 142:380 143:281 144:347 145:50
146:337 147:133 148:495 149:180 150:119 151:159
152:142 153:127 154:11 155:268 156:207 157:253
158:169 159:223 160:243 161:110 162:210 163:218
164:573 165:432 166:296 167:314 168:594 169:130
170:427 171:28 172:3 189:167 190:1585 192:5775
193:4090 194:3259 195:2372 196:1023 198:3758 199:3236
200:5482 201:1328 202:7555 203:7791 204:3992 205:2095
206:2408 207:2722 208:3223 209:3471 210:2529 211:1034
212:1337 213:1616 214:453 215:48 216:4281 217:1202
218:363 219:404 220:1067 221:400 222:316
End of report