Routing Table Report 04:00 +10GMT Sun 30 Mar, 2008
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 250353
Prefixes after maximum aggregation: 125953
Deaggregation factor: 1.99
Unique aggregates announced to Internet: 121654
Total ASes present in the Internet Routing Table: 27757
Prefixes per ASN: 9.02
Origin-only ASes present in the Internet Routing Table: 24179
Origin ASes announcing only one prefix: 11215
Transit ASes present in the Internet Routing Table: 3578
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: 18
Max AS path prepend of ASN (43380) 13
Prefixes from unregistered ASNs in the Routing Table: 25314
Unregistered ASNs in the Routing Table: 1914
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: 854
Number of addresses announced to Internet: 1852524192
Equivalent to 110 /8s, 107 /16s and 70 /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: 119284
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 42383
Total APNIC prefixes after maximum aggregation: 13329
APNIC Deaggregation factor: 3.18
Prefixes being announced from the APNIC address blocks: 54591
Unique aggregates announced from the APNIC address blocks: 23306
APNIC Region origin ASes present in the Internet Routing Table: 1909
APNIC Prefixes per ASN: 28.60
APNIC Region origin ASes announcing only one prefix: 548
APNIC Region transit ASes present in the Internet Routing Table: 353
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 337560416
Equivalent to 20 /8s, 30 /16s and 195 /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: 106701
Total ARIN prefixes after maximum aggregation: 58790
ARIN Deaggregation factor: 1.81
Prefixes being announced from the ARIN address blocks: 85525
Unique aggregates announced from the ARIN address blocks: 33902
ARIN Region origin ASes present in the Internet Routing Table: 11661
ARIN Prefixes per ASN: 7.33
ARIN Region origin ASes announcing only one prefix: 4528
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: 361030016
Equivalent to 21 /8s, 132 /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: 53197
Total RIPE prefixes after maximum aggregation: 33044
RIPE Deaggregation factor: 1.61
Prefixes being announced from the RIPE address blocks: 48779
Unique aggregates announced from the RIPE address blocks: 32661
RIPE Region origin ASes present in the Internet Routing Table: 11086
RIPE Prefixes per ASN: 4.40
RIPE Region origin ASes announcing only one prefix: 5783
RIPE Region transit ASes present in the Internet Routing Table: 1695
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 350569088
Equivalent to 20 /8s, 229 /16s and 66 /24s
Percentage of available RIPE address space announced: 80.4
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: 19206
Total LACNIC prefixes after maximum aggregation: 4816
LACNIC Deaggregation factor: 3.99
Prefixes being announced from the LACNIC address blocks: 17555
Unique aggregates announced from the LACNIC address blocks: 9631
LACNIC Region origin ASes present in the Internet Routing Table: 884
LACNIC Prefixes per ASN: 19.86
LACNIC Region origin ASes announcing only one prefix: 277
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: 49914368
Equivalent to 2 /8s, 249 /16s and 162 /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: 3551
Total AfriNIC prefixes after maximum aggregation: 1125
AfriNIC Deaggregation factor: 3.16
Prefixes being announced from the AfriNIC address blocks: 3946
Unique aggregates announced from the AfriNIC address blocks: 1805
AfriNIC Region origin ASes present in the Internet Routing Table: 233
AfriNIC Prefixes per ASN: 16.94
AfriNIC Region origin ASes announcing only one prefix: 79
AfriNIC Region transit ASes present in the Internet Routing Table: 44
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 10160896
Equivalent to 0 /8s, 155 /16s and 11 /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 1619 387 87 Videsh Sanchar Nigam Ltd. Aut
9583 1151 140 16 Sify Limited
9498 1128 550 63 BHARTI BT INTERNET LTD.
17488 1045 67 83 Hathway IP Over Cable Interne
4134 859 12487 319 CHINANET-BACKBONE
4766 850 6005 341 Korea Telecom (KIX)
18101 673 126 52 Reliance Infocom Ltd Internet
9829 586 450 12 BSNL National Internet Backbo
4812 562 969 92 China Telecom (Shanghai)
1221 542 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 1427 5927 1009 AT&T WorldNet Services
2386 1399 658 851 AT&T Data Communications Serv
4323 1396 1028 368 Time Warner Telecom
11492 1220 147 23 Cable One
7011 1081 315 615 Citizens Utilities
18566 1044 296 10 Covad Communications
1785 1010 479 107 AppliedTheory Corporation
6197 983 728 477 BellSouth Network Solutions,
174 966 6834 812 Cogent Communications
20115 915 859 508 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 398 1777 362 TDC Tele Danmark
8452 358 188 7 TEDATA
3301 341 1459 310 TeliaNet Sweden
3320 321 7045 267 Deutsche Telekom AG
8866 293 78 24 Bulgarian Telecommunication C
5462 292 666 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 254 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 1188 2448 221 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 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
20858 216 34 3 EgyNet
2018 192 276 112 Tertiary Education Network
6713 143 135 11 Itissalat Al-MAGHRIB
33783 130 9 18 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 1914 3009 94 bellsouth.net, inc.
23577 1636 34 699 Korea Telecom (ATM-MPLS)
4755 1619 387 87 Videsh Sanchar Nigam Ltd. Aut
7018 1427 5927 1009 AT&T WorldNet Services
2386 1399 658 851 AT&T Data Communications Serv
4323 1396 1028 368 Time Warner Telecom
11492 1220 147 23 Cable One
8151 1188 2448 221 UniNet S.A. de C.V.
9583 1151 140 16 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 1619 1532 Videsh Sanchar Nigam Ltd. Aut
11492 1220 1197 Cable One
9583 1151 1135 Sify Limited
9498 1128 1065 BHARTI BT INTERNET LTD.
18566 1044 1034 Covad Communications
4323 1396 1028 Time Warner Telecom
8151 1188 967 UniNet S.A. de C.V.
17488 1045 962 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 /14:498 /15:998 /16:9816 /17:4312 /18:7278
/19:15264 /20:17529 /21:16773 /22:21326 /23:22322 /24:131459
/25:775 /26:894 /27:484 /28:108 /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 1099 1399 AT&T Data Communications Serv
18566 1025 1044 Covad Communications
9583 986 1151 Sify Limited
7011 963 1081 Citizens Utilities
4755 962 1619 Videsh Sanchar Nigam Ltd. Aut
6478 893 894 AT&T Worldnet Services
17488 860 1045 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 12:2000 13:1 15:20 16:3
17:6 18:13 20:35 24:1047 25:1 32:60
33:4 38:407 40:95 41:627 44:2 47:8
52:3 55:3 56:3 57:22 58:513 59:423
60:423 61:985 62:1091 63:1957 64:3358 65:2373
66:3614 67:1092 68:650 69:2111 70:539 71:127
72:1539 73:6 74:899 75:221 76:284 77:616
78:549 79:120 80:895 81:832 82:605 83:370
84:547 85:940 86:395 87:627 88:322 89:1208
90:11 91:1127 92:238 93:167 96:19 97:16
98:108 99:3 116:581 117:277 118:103 119:381
121:468 122:727 123:303 124:833 125:1124 128:324
129:199 130:124 131:405 132:69 133:9 134:188
135:32 136:222 137:119 138:155 139:65 140:483
141:110 142:380 143:279 144:346 145:50 146:337
147:133 148:496 149:180 150:121 151:159 152:142
153:127 154:11 155:267 156:207 157:254 158:170
159:215 160:240 161:110 162:207 163:219 164:570
165:434 166:296 167:309 168:594 169:130 170:424
171:28 172:3 189:166 190:1582 192:5763 193:4087
194:3261 195:2376 196:1025 198:3758 199:3234 200:5517
201:1325 202:7548 203:7786 204:3989 205:2096 206:2415
207:2721 208:3224 209:3470 210:2526 211:1033 212:1319
213:1610 214:451 215:48 216:4274 217:1195 218:349
219:404 220:1064 221:402 222:311
End of report
