Routing Table Report 04:00 +10GMT Fri 18 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 346985
Prefixes after maximum aggregation: 156519
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 171402
Total ASes present in the Internet Routing Table: 35901
Prefixes per ASN: 9.67
Origin-only ASes present in the Internet Routing Table: 30933
Origin ASes announcing only one prefix: 14973
Transit ASes present in the Internet Routing Table: 4968
Transit-only ASes present in the Internet Routing Table: 122
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 31
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 333
Unregistered ASNs in the Routing Table: 133
Number of 32-bit ASNs allocated by the RIRs: 1130
Prefixes from 32-bit ASNs in the Routing Table: 1
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 207
Number of addresses announced to Internet: 2395737664
Equivalent to 142 /8s, 204 /16s and 14 /24s
Percentage of available address space announced: 64.6
Percentage of allocated address space announced: 64.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.0
Total number of prefixes smaller than registry allocations: 143670
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85954
Total APNIC prefixes after maximum aggregation: 29252
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 82732
Unique aggregates announced from the APNIC address blocks: 35828
APNIC Region origin ASes present in the Internet Routing Table: 4327
APNIC Prefixes per ASN: 19.12
APNIC Region origin ASes announcing only one prefix: 1206
APNIC Region transit ASes present in the Internet Routing Table: 696
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 589546528
Equivalent to 35 /8s, 35 /16s and 196 /24s
Percentage of available APNIC address space announced: 74.8
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 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, 133/8, 175/8, 180/8,
182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8,
219/8, 220/8, 221/8, 222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 139597
Total ARIN prefixes after maximum aggregation: 71388
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 110410
Unique aggregates announced from the ARIN address blocks: 44948
ARIN Region origin ASes present in the Internet Routing Table: 14209
ARIN Prefixes per ASN: 7.77
ARIN Region origin ASes announcing only one prefix: 5417
ARIN Region transit ASes present in the Internet Routing Table: 1468
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 787266176
Equivalent to 46 /8s, 236 /16s and 186 /24s
Percentage of available ARIN address space announced: 62.6
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
53248-55295, 393216-394239
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8,
53/8, 54/8, 55/8, 56/8, 57/8, 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, 100/8, 104/8, 107/8, 108/8, 173/8,
174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8,
208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 82047
Total RIPE prefixes after maximum aggregation: 46586
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 75405
Unique aggregates announced from the RIPE address blocks: 49027
RIPE Region origin ASes present in the Internet Routing Table: 15317
RIPE Prefixes per ASN: 4.92
RIPE Region origin ASes announcing only one prefix: 7781
RIPE Region transit ASes present in the Internet Routing Table: 2389
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 460084288
Equivalent to 27 /8s, 108 /16s and 84 /24s
Percentage of available RIPE address space announced: 74.1
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, 47104-52223, 56320-58367
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
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, 109/8,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 31741
Total LACNIC prefixes after maximum aggregation: 7375
LACNIC Deaggregation factor: 4.30
Prefixes being announced from the LACNIC address blocks: 30502
Unique aggregates announced from the LACNIC address blocks: 15935
LACNIC Region origin ASes present in the Internet Routing Table: 1429
LACNIC Prefixes per ASN: 21.34
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 260
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 80772736
Equivalent to 4 /8s, 208 /16s and 126 /24s
Percentage of available LACNIC address space announced: 53.5
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 7430
Total AfriNIC prefixes after maximum aggregation: 1806
AfriNIC Deaggregation factor: 4.11
Prefixes being announced from the AfriNIC address blocks: 5833
Unique aggregates announced from the AfriNIC address blocks: 1855
AfriNIC Region origin ASes present in the Internet Routing Table: 437
AfriNIC Prefixes per ASN: 13.35
AfriNIC Region origin ASes announcing only one prefix: 132
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 5.4
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21848832
Equivalent to 1 /8s, 77 /16s and 99 /24s
Percentage of available AfriNIC address space announced: 32.6
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 2257 9496 790 Korea Telecom (KIX)
7545 1628 302 87 TPG Internet Pty Ltd
4755 1416 633 163 TATA Communications formerly
17974 1404 467 28 PT TELEKOMUNIKASI INDONESIA
24560 1113 323 182 Bharti Airtel Ltd., Telemedia
9583 1044 77 488 Sify Limited
4808 1042 2142 294 CNCGROUP IP network: China169
17488 950 162 103 Hathway IP Over Cable Interne
18101 928 117 141 Reliance Infocom Ltd Internet
9829 895 762 45 BSNL National Internet Backbo
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3694 3855 261 bellsouth.net, inc.
4323 2624 1109 405 Time Warner Telecom
19262 1843 4955 283 Verizon Global Networks
1785 1784 697 131 PaeTec Communications, Inc.
20115 1527 1534 646 Charter Communications
6478 1511 295 74 AT&T Worldnet Services
7018 1358 6673 874 AT&T WorldNet Services
18566 1305 312 118 Covad Communications
2386 1297 553 934 AT&T Data Communications Serv
11492 1277 236 76 Cable One
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6830 513 1764 318 UPC Distribution Services
9198 466 267 15 Kazakhtelecom Data Network Ad
34984 463 98 143 BILISIM TELEKOM
3292 447 1996 388 TDC Tele Danmark
8866 440 133 23 Bulgarian Telecommunication C
3320 410 7620 357 Deutsche Telekom AG
20940 409 96 315 Akamai Technologies European
8551 403 353 46 Bezeq International
702 396 1800 309 UUNET - Commercial IP service
3301 383 1822 341 TeliaNet Sweden
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1374 255 166 TVCABLE BOGOTA
8151 1344 2680 358 UniNet S.A. de C.V.
28573 1237 961 82 NET Servicos de Comunicao S.A
6503 1186 354 73 AVANTEL, S.A.
7303 901 464 142 Telecom Argentina Stet-France
14420 638 57 92 CORPORACION NACIONAL DE TELEC
22047 543 310 15 VTR PUNTO NET S.A.
3816 508 221 96 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 460 34 34 Telefonica del Sur S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 763 147 39 LINKdotNET AS number
8452 727 445 11 TEDATA
15475 496 90 12 Nile Online
36992 301 271 14 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 219 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
16637 148 422 85 MTN Network Solutions
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3694 3855 261 bellsouth.net, inc.
4323 2624 1109 405 Time Warner Telecom
4766 2257 9496 790 Korea Telecom (KIX)
19262 1843 4955 283 Verizon Global Networks
1785 1784 697 131 PaeTec Communications, Inc.
7545 1628 302 87 TPG Internet Pty Ltd
20115 1527 1534 646 Charter Communications
6478 1511 295 74 AT&T Worldnet Services
4755 1416 633 163 TATA Communications formerly
17974 1404 467 28 PT TELEKOMUNIKASI INDONESIA
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2624 2219 Time Warner Telecom
1785 1784 1653 PaeTec Communications, Inc.
19262 1843 1560 Verizon Global Networks
7545 1628 1541 TPG Internet Pty Ltd
4766 2257 1467 Korea Telecom (KIX)
6478 1511 1437 AT&T Worldnet Services
17974 1404 1376 PT TELEKOMUNIKASI INDONESIA
4755 1416 1253 TATA Communications formerly
10620 1374 1208 TVCABLE BOGOTA
11492 1277 1201 Cable One
Complete listing at http://thyme.rand.apnic.net/current/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
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
5.0.0.0/16 12654 RIPE NCC RIS Project
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Continental Cablevision
37.0.0.0/16 12654 RIPE NCC RIS Project
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
39.0.0.0/8 237 Merit Network
41.57.192.0/18 22750 BCSNET
41.222.79.0/24 36938 >>UNKNOWN<<
Complete listing at http://thyme.rand.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 /8:21 /9:10 /10:26 /11:72 /12:215
/13:445 /14:764 /15:1366 /16:11515 /17:5650 /18:9324
/19:18846 /20:24392 /21:24886 /22:32997 /23:31736 /24:181527
/25:1083 /26:1251 /27:663 /28:169 /29:16 /30:3
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2281 3694 bellsouth.net, inc.
6478 1465 1511 AT&T Worldnet Services
4323 1414 2624 Time Warner Telecom
18566 1283 1305 Covad Communications
10620 1265 1374 TVCABLE BOGOTA
11492 1234 1277 Cable One
7011 1057 1160 Citizens Utilities
1785 1054 1784 PaeTec Communications, Inc.
6503 968 1186 AVANTEL, S.A.
19262 954 1843 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:191 2:44 4:13 5:1 8:334 12:2029
13:1 14:413 15:15 16:3 17:8 20:9
23:1 24:1491 27:587 32:60 33:4 34:2
37:1 38:706 40:101 41:2238 44:3 46:613
47:4 49:147 50:93 52:12 55:2 56:2
57:32 58:864 59:476 60:390 61:1113 62:1052
63:1943 64:3807 65:2359 66:4172 67:1785 68:1028
69:2913 70:735 71:402 72:2011 73:1 74:2322
75:292 76:346 77:873 78:707 79:447 80:1060
81:828 82:523 83:468 84:633 85:1054 86:551
87:750 88:355 89:1577 90:157 91:3505 92:493
93:1038 94:1202 95:770 96:454 97:252 98:789
99:33 101:31 107:3 108:88 109:926 110:480
111:705 112:311 113:362 114:499 115:655 116:929
117:677 118:670 119:1024 120:242 121:702 122:1629
123:1052 124:1281 125:1257 128:265 129:156 130:170
131:571 132:111 133:20 134:217 135:49 136:215
137:146 138:292 139:119 140:495 141:203 142:359
143:381 144:486 145:51 146:430 147:212 148:638
149:275 150:161 151:229 152:298 153:180 154:3
155:350 156:176 157:342 158:129 159:380 160:314
161:206 162:274 163:161 164:486 165:338 166:503
167:422 168:742 169:150 170:755 171:69 172:2
173:1322 174:530 175:308 176:1 177:7 178:781
180:810 182:360 183:247 184:211 186:1006 187:820
188:890 189:1053 190:4381 192:5803 193:4801 194:3508
195:2955 196:1182 197:3 198:3575 199:3833 200:5594
201:1583 202:8274 203:8444 204:4096 205:2342 206:2638
207:3082 208:3902 209:3500 210:2627 211:1338 212:1923
213:1728 214:760 215:62 216:4892 217:1630 218:537
219:379 220:1201 221:452 222:313 223:99
End of report
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