Routing Table Report 04:00 +10GMT Fri 29 Oct, 2010
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 334833
Prefixes after maximum aggregation: 152984
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 164888
Total ASes present in the Internet Routing Table: 35145
Prefixes per ASN: 9.53
Origin-only ASes present in the Internet Routing Table: 30314
Origin ASes announcing only one prefix: 14800
Transit ASes present in the Internet Routing Table: 4831
Transit-only ASes present in the Internet Routing Table: 118
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: 299
Unregistered ASNs in the Routing Table: 126
Number of 32-bit ASNs allocated by the RIRs: 851
Prefixes from 32-bit ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 204
Number of addresses announced to Internet: 2326236960
Equivalent to 138 /8s, 167 /16s and 143 /24s
Percentage of available address space announced: 62.8
Percentage of allocated address space announced: 66.4
Percentage of available address space allocated: 94.6
Percentage of address space in use by end-sites: 85.6
Total number of prefixes smaller than registry allocations: 137469
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82164
Total APNIC prefixes after maximum aggregation: 28015
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 79059
Unique aggregates announced from the APNIC address blocks: 34672
APNIC Region origin ASes present in the Internet Routing Table: 4227
APNIC Prefixes per ASN: 18.70
APNIC Region origin ASes announcing only one prefix: 1177
APNIC Region transit ASes present in the Internet Routing Table: 676
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 560599328
Equivalent to 33 /8s, 106 /16s and 17 /24s
Percentage of available APNIC address space announced: 75.9
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, 42/8, 43/8, 49/8,
58/8, 59/8, 60/8, 61/8, 101/8, 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: 137481
Total ARIN prefixes after maximum aggregation: 71088
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 108876
Unique aggregates announced from the ARIN address blocks: 43606
ARIN Region origin ASes present in the Internet Routing Table: 14002
ARIN Prefixes per ASN: 7.78
ARIN Region origin ASes announcing only one prefix: 5371
ARIN Region transit ASes present in the Internet Routing Table: 1478
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 738319616
Equivalent to 44 /8s, 1 /16s and 221 /24s
Percentage of available ARIN address space announced: 62.9
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, 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, 54/8,
55/8, 56/8, 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, 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: 77167
Total RIPE prefixes after maximum aggregation: 44696
RIPE Deaggregation factor: 1.73
Prefixes being announced from the RIPE address blocks: 70632
Unique aggregates announced from the RIPE address blocks: 46363
RIPE Region origin ASes present in the Internet Routing Table: 14941
RIPE Prefixes per ASN: 4.73
RIPE Region origin ASes announcing only one prefix: 7693
RIPE Region transit ASes present in the Internet Routing Table: 2303
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 442901248
Equivalent to 26 /8s, 102 /16s and 35 /24s
Percentage of available RIPE address space announced: 77.6
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, 196608-197631
RIPE Address Blocks 2/8, 25/8, 31/8, 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,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 30225
Total LACNIC prefixes after maximum aggregation: 7193
LACNIC Deaggregation factor: 4.20
Prefixes being announced from the LACNIC address blocks: 28908
Unique aggregates announced from the LACNIC address blocks: 15345
LACNIC Region origin ASes present in the Internet Routing Table: 1378
LACNIC Prefixes per ASN: 20.98
LACNIC Region origin ASes announcing only one prefix: 430
LACNIC Region transit ASes present in the Internet Routing Table: 239
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 76744320
Equivalent to 4 /8s, 147 /16s and 6 /24s
Percentage of available LACNIC address space announced: 57.2
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 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: 7567
Total AfriNIC prefixes after maximum aggregation: 1872
AfriNIC Deaggregation factor: 4.04
Prefixes being announced from the AfriNIC address blocks: 5848
Unique aggregates announced from the AfriNIC address blocks: 1718
AfriNIC Region origin ASes present in the Internet Routing Table: 414
AfriNIC Prefixes per ASN: 14.13
AfriNIC Region origin ASes announcing only one prefix: 129
AfriNIC Region transit ASes present in the Internet Routing Table: 88
Average AfriNIC Region AS path length visible: 5.2
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21441280
Equivalent to 1 /8s, 71 /16s and 43 /24s
Percentage of available AfriNIC address space announced: 63.9
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1867 9453 512 Korea Telecom (KIX)
4755 1381 383 159 TATA Communications formerly
7545 1374 298 68 TPG Internet Pty Ltd
17488 1364 156 121 Hathway IP Over Cable Interne
17974 1274 304 81 PT TELEKOMUNIKASI INDONESIA
24560 1053 309 173 Bharti Airtel Ltd., Telemedia
9583 1038 77 499 Sify Limited
4808 977 1720 265 CNCGROUP IP network: China169
18101 893 116 133 Reliance Infocom Ltd Internet
9829 827 694 27 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 3761 3666 279 bellsouth.net, inc.
4323 2610 1103 392 Time Warner Telecom
1785 1796 698 130 PaeTec Communications, Inc.
19262 1777 4833 279 Verizon Global Networks
20115 1507 1528 644 Charter Communications
7018 1429 5691 917 AT&T WorldNet Services
6478 1398 280 71 AT&T Worldnet Services
2386 1315 556 930 AT&T Data Communications Serv
11492 1237 231 74 Cable One
22773 1224 2859 62 Cox Communications, Inc.
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
3292 447 2028 391 TDC Tele Danmark
8866 424 133 25 Bulgarian Telecommunication C
8551 402 353 46 Bezeq International
702 397 1866 311 UUNET - Commercial IP service
34984 381 91 188 BILISIM TELEKOM
3301 379 1688 335 TeliaNet Sweden
3320 377 7332 330 Deutsche Telekom AG
30890 375 80 205 Evolva Telecom
12479 366 576 5 Uni2 Autonomous System
31148 359 19 81 FreeNet ISP
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 1330 248 155 TVCABLE BOGOTA
8151 1327 2597 365 UniNet S.A. de C.V.
28573 1202 928 84 NET Servicos de Comunicao S.A
7303 832 441 108 Telecom Argentina Stet-France
6503 794 225 259 AVANTEL, S.A.
22047 564 310 15 VTR PUNTO NET S.A.
14420 549 40 77 CORPORACION NACIONAL DE TELEC
3816 485 210 96 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 448 32 27 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
8452 1114 445 10 TEDATA
24863 744 147 39 LINKdotNET AS number
36992 644 278 160 Etisalat MISR
3741 268 907 225 The Internet Solution
24835 209 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 203 19 11 Ci Telecom Autonomous system
2018 197 277 64 Tertiary Education Network
33776 196 12 14 Starcomms Nigeria Limited
16637 154 440 91 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 3761 3666 279 bellsouth.net, inc.
4323 2610 1103 392 Time Warner Telecom
4766 1867 9453 512 Korea Telecom (KIX)
1785 1796 698 130 PaeTec Communications, Inc.
19262 1777 4833 279 Verizon Global Networks
20115 1507 1528 644 Charter Communications
7018 1429 5691 917 AT&T WorldNet Services
6478 1398 280 71 AT&T Worldnet Services
4755 1381 383 159 TATA Communications formerly
7545 1374 298 68 TPG Internet Pty Ltd
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 2610 2218 Time Warner Telecom
1785 1796 1666 PaeTec Communications, Inc.
19262 1777 1498 Verizon Global Networks
4766 1867 1355 Korea Telecom (KIX)
6478 1398 1327 AT&T Worldnet Services
7545 1374 1306 TPG Internet Pty Ltd
17488 1364 1243 Hathway IP Over Cable Interne
4755 1381 1222 TATA Communications formerly
17974 1274 1193 PT TELEKOMUNIKASI INDONESIA
10620 1330 1175 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
31.0.0.0/16 12654 RIPE NCC RIS Project
31.1.0.0/21 12654 RIPE NCC RIS Project
31.1.24.0/24 12654 RIPE NCC RIS Project
36.0.0.0/8 237 Merit Network
41.78.192.0/22 30999 Emtel is GSM, 3G and ISP in M
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
42.0.0.0/8 237 Merit Network
46.18.88.0/22 50535 EUSKILL SARL
46.36.128.0/22 39824 JSC AlmaTV
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 /10:25 /11:68 /12:206
/13:420 /14:744 /15:1346 /16:11366 /17:5531 /18:9360
/19:18579 /20:23850 /21:23867 /22:31478 /23:30592 /24:174510
/25:987 /26:1120 /27:579 /28:153 /29:12 /30:2
/31:0 /32:7
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2326 3761 bellsouth.net, inc.
4323 1400 2610 Time Warner Telecom
6478 1360 1398 AT&T Worldnet Services
10620 1222 1330 TVCABLE BOGOTA
11492 1194 1237 Cable One
1785 1078 1796 PaeTec Communications, Inc.
18566 1069 1088 Covad Communications
7011 1059 1160 Citizens Utilities
8452 1010 1114 TEDATA
19262 903 1777 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:91 2:13 4:13 8:313 12:1997 13:8
14:44 15:18 16:3 17:8 20:9 24:1395
27:389 31:1 32:61 33:11 38:696 40:101
41:2588 44:3 46:190 47:10 49:4 50:3
52:12 55:6 56:2 57:29 58:834 59:501
60:479 61:1115 62:1005 63:1965 64:3750 65:2346
66:4074 67:1825 68:1140 69:2866 70:758 71:376
72:1893 73:2 74:2340 75:295 76:321 77:835
78:683 79:444 80:1060 81:794 82:510 83:454
84:685 85:1023 86:476 87:695 88:329 89:1574
90:109 91:3135 92:439 93:983 94:1119 95:703
96:395 97:223 98:631 99:32 101:3 108:64
109:721 110:430 111:623 112:308 113:304 114:479
115:614 116:1143 117:660 118:555 119:1000 120:162
121:715 122:1606 123:950 124:1226 125:1269 128:229
129:152 130:169 131:565 132:274 133:20 134:207
135:46 136:211 137:139 138:278 139:109 140:485
141:198 142:347 143:361 144:498 145:55 146:432
147:177 148:620 149:308 150:146 151:231 152:293
153:175 154:3 155:362 156:166 157:338 158:111
159:361 160:311 161:199 162:274 163:166 164:424
165:349 166:469 167:426 168:681 169:155 170:719
171:62 172:2 173:1072 174:484 175:242 176:1
178:559 180:688 182:250 183:239 184:150 186:747
187:559 188:855 189:805 190:4177 192:5766 193:4753
194:3445 195:2827 196:1201 198:3534 199:3631 200:5415
201:1586 202:8167 203:8291 204:4014 205:2340 206:2567
207:3012 208:3900 209:3468 210:2558 211:1270 212:1810
213:1728 214:684 215:66 216:4763 217:1574 218:528
219:401 220:1184 221:428 222:343 223:59
End of report