Routing Table Report 04:00 +10GMT Mon 28 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 348267
Prefixes after maximum aggregation: 157195
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 171834
Total ASes present in the Internet Routing Table: 35931
Prefixes per ASN: 9.69
Origin-only ASes present in the Internet Routing Table: 30968
Origin ASes announcing only one prefix: 14936
Transit ASes present in the Internet Routing Table: 4963
Transit-only ASes present in the Internet Routing Table: 120
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: 345
Unregistered ASNs in the Routing Table: 144
Number of 32-bit ASNs allocated by the RIRs: 1155
Prefixes from 32-bit ASNs in the Routing Table: 2
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 198
Number of addresses announced to Internet: 2366083040
Equivalent to 141 /8s, 7 /16s and 143 /24s
Percentage of available address space announced: 63.8
Percentage of allocated address space announced: 63.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.1
Total number of prefixes smaller than registry allocations: 144251
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86642
Total APNIC prefixes after maximum aggregation: 29562
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 83447
Unique aggregates announced from the APNIC address blocks: 35924
APNIC Region origin ASes present in the Internet Routing Table: 4333
APNIC Prefixes per ASN: 19.26
APNIC Region origin ASes announcing only one prefix: 1198
APNIC Region transit ASes present in the Internet Routing Table: 689
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 592080160
Equivalent to 35 /8s, 74 /16s and 109 /24s
Percentage of available APNIC address space announced: 75.1
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: 139683
Total ARIN prefixes after maximum aggregation: 71585
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 110353
Unique aggregates announced from the ARIN address blocks: 45040
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: 5394
ARIN Region transit ASes present in the Internet Routing Table: 1471
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 787494272
Equivalent to 46 /8s, 240 /16s and 53 /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: 82426
Total RIPE prefixes after maximum aggregation: 46739
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 75654
Unique aggregates announced from the RIPE address blocks: 49316
RIPE Region origin ASes present in the Internet Routing Table: 15339
RIPE Prefixes per ASN: 4.93
RIPE Region origin ASes announcing only one prefix: 7777
RIPE Region transit ASes present in the Internet Routing Table: 2385
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 460812096
Equivalent to 27 /8s, 119 /16s and 111 /24s
Percentage of available RIPE address space announced: 74.2
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: 31848
Total LACNIC prefixes after maximum aggregation: 7384
LACNIC Deaggregation factor: 4.31
Prefixes being announced from the LACNIC address blocks: 30665
Unique aggregates announced from the LACNIC address blocks: 15927
LACNIC Region origin ASes present in the Internet Routing Table: 1436
LACNIC Prefixes per ASN: 21.35
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 263
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 80967296
Equivalent to 4 /8s, 211 /16s and 118 /24s
Percentage of available LACNIC address space announced: 53.6
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: 7455
Total AfriNIC prefixes after maximum aggregation: 1814
AfriNIC Deaggregation factor: 4.11
Prefixes being announced from the AfriNIC address blocks: 5873
Unique aggregates announced from the AfriNIC address blocks: 1833
AfriNIC Region origin ASes present in the Internet Routing Table: 436
AfriNIC Prefixes per ASN: 13.47
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: 5.5
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21887488
Equivalent to 1 /8s, 77 /16s and 250 /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 2420 9501 886 Korea Telecom (KIX)
7545 1613 302 84 TPG Internet Pty Ltd
4755 1419 634 164 TATA Communications formerly
17974 1405 475 29 PT TELEKOMUNIKASI INDONESIA
24560 1115 323 184 Bharti Airtel Ltd., Telemedia
4808 1046 2142 294 CNCGROUP IP network: China169
9583 1045 77 488 Sify Limited
17488 940 161 102 Hathway IP Over Cable Interne
18101 931 117 139 Reliance Infocom Ltd Internet
9829 895 761 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 3689 3855 261 bellsouth.net, inc.
4323 2601 1109 403 Time Warner Telecom
19262 1787 4954 285 Verizon Global Networks
1785 1786 697 131 PaeTec Communications, Inc.
20115 1528 1535 647 Charter Communications
6478 1515 296 120 AT&T Worldnet Services
18566 1447 321 156 Covad Communications
7018 1362 6705 883 AT&T WorldNet Services
2386 1295 537 938 AT&T Data Communications Serv
11492 1285 236 70 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 514 1780 319 UPC Distribution Services
9198 470 267 15 Kazakhtelecom Data Network Ad
34984 465 98 145 BILISIM TELEKOM
3292 447 1996 388 TDC Tele Danmark
8866 442 133 23 Bulgarian Telecommunication C
20940 412 98 316 Akamai Technologies European
3320 409 7604 356 Deutsche Telekom AG
8551 403 353 46 Bezeq International
702 395 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 1383 257 166 TVCABLE BOGOTA
8151 1342 2685 362 UniNet S.A. de C.V.
28573 1232 961 82 NET Servicos de Comunicao S.A
6503 1172 354 73 AVANTEL, S.A.
7303 906 463 144 Telecom Argentina Stet-France
14420 641 57 94 CORPORACION NACIONAL DE TELEC
22047 543 310 15 VTR PUNTO NET S.A.
3816 508 221 101 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
11172 463 83 82 Servicios Alestra S.A de C.V
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
8452 762 445 11 TEDATA
24863 691 147 39 LINKdotNET AS number
15475 473 90 12 Nile Online
36992 300 271 14 Etisalat MISR
3741 264 987 226 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 218 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 155 439 89 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 3689 3855 261 bellsouth.net, inc.
4323 2601 1109 403 Time Warner Telecom
4766 2420 9501 886 Korea Telecom (KIX)
19262 1787 4954 285 Verizon Global Networks
1785 1786 697 131 PaeTec Communications, Inc.
7545 1613 302 84 TPG Internet Pty Ltd
20115 1528 1535 647 Charter Communications
6478 1515 296 120 AT&T Worldnet Services
18566 1447 321 156 Covad Communications
4755 1419 634 164 TATA Communications formerly
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 2601 2198 Time Warner Telecom
1785 1786 1655 PaeTec Communications, Inc.
4766 2420 1534 Korea Telecom (KIX)
7545 1613 1529 TPG Internet Pty Ltd
19262 1787 1502 Verizon Global Networks
6478 1515 1395 AT&T Worldnet Services
17974 1405 1376 PT TELEKOMUNIKASI INDONESIA
18566 1447 1291 Covad Communications
4755 1419 1255 TATA Communications formerly
10620 1383 1217 TVCABLE BOGOTA
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
41.57.192.0/18 22750 BCSNET
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>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 /8:19 /9:10 /10:26 /11:72 /12:215
/13:444 /14:765 /15:1371 /16:11539 /17:5663 /18:9352
/19:18894 /20:24442 /21:25012 /22:33329 /23:31736 /24:181945
/25:1144 /26:1384 /27:712 /28:166 /29:16 /30:3
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2276 3689 bellsouth.net, inc.
6478 1469 1515 AT&T Worldnet Services
18566 1425 1447 Covad Communications
4323 1402 2601 Time Warner Telecom
10620 1274 1383 TVCABLE BOGOTA
11492 1242 1285 Cable One
7011 1056 1157 Citizens Utilities
1785 1054 1786 PaeTec Communications, Inc.
6503 954 1172 AVANTEL, S.A.
19262 899 1787 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:259 2:46 4:13 5:1 8:334 12:2028
13:1 14:414 15:15 16:3 17:8 20:9
23:1 24:1495 27:592 32:60 33:4 34:2
37:1 38:706 40:101 41:2302 44:3 46:642
47:4 49:154 50:96 52:12 55:2 56:2
57:31 58:864 59:475 60:383 61:1107 62:1043
63:1927 64:3848 65:2364 66:4257 67:1783 68:1045
69:2869 70:730 71:399 72:1991 73:1 74:2348
75:292 76:346 77:872 78:697 79:444 80:1069
81:812 82:522 83:472 84:632 85:1046 86:576
87:745 88:355 89:1576 90:157 91:3537 92:494
93:1047 94:1209 95:771 96:455 97:248 98:783
99:33 101:35 107:4 108:117 109:929 110:477
111:719 112:314 113:371 114:499 115:649 116:946
117:682 118:685 119:1036 120:248 121:696 122:1618
123:1059 124:1290 125:1259 128:266 129:156 130:173
131:568 132:108 133:20 134:219 135:49 136:215
137:146 138:292 139:117 140:490 141:203 142:355
143:385 144:487 145:51 146:439 147:200 148:631
149:263 150:169 151:229 152:297 153:180 154:3
155:377 156:176 157:344 158:128 159:381 160:315
161:208 162:277 163:156 164:486 165:341 166:503
167:410 168:739 169:156 170:755 171:69 172:2
173:1224 174:501 175:317 176:1 177:23 178:771
180:815 181:2 182:363 183:241 184:213 186:1023
187:824 188:898 189:1051 190:4430 192:5828 193:4803
194:3504 195:2962 196:1199 197:3 198:3585 199:3832
200:5601 201:1578 202:8288 203:8450 204:4088 205:2305
206:2647 207:3074 208:3927 209:3471 210:2643 211:1348
212:1934 213:1732 214:758 215:63 216:4860 217:1647
218:547 219:366 220:1203 221:452 222:314 223:104
End of report
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