Routing Table Report 04:00 +10GMT Thu 03 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 348684
Prefixes after maximum aggregation: 157293
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 172015
Total ASes present in the Internet Routing Table: 35972
Prefixes per ASN: 9.69
Origin-only ASes present in the Internet Routing Table: 31001
Origin ASes announcing only one prefix: 14937
Transit ASes present in the Internet Routing Table: 4971
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: 361
Unregistered ASNs in the Routing Table: 153
Number of 32-bit ASNs allocated by the RIRs: 1159
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: 2368259680
Equivalent to 141 /8s, 40 /16s and 198 /24s
Percentage of available address space announced: 63.9
Percentage of allocated address space announced: 63.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.8
Total number of prefixes smaller than registry allocations: 144492
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86828
Total APNIC prefixes after maximum aggregation: 29597
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 83635
Unique aggregates announced from the APNIC address blocks: 36078
APNIC Region origin ASes present in the Internet Routing Table: 4342
APNIC Prefixes per ASN: 19.26
APNIC Region origin ASes announcing only one prefix: 1201
APNIC Region transit ASes present in the Internet Routing Table: 694
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 593470752
Equivalent to 35 /8s, 95 /16s and 165 /24s
Percentage of available APNIC address space announced: 75.3
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: 139810
Total ARIN prefixes after maximum aggregation: 71580
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 110435
Unique aggregates announced from the ARIN address blocks: 44885
ARIN Region origin ASes present in the Internet Routing Table: 14215
ARIN Prefixes per ASN: 7.77
ARIN Region origin ASes announcing only one prefix: 5397
ARIN Region transit ASes present in the Internet Routing Table: 1476
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 787561344
Equivalent to 46 /8s, 241 /16s and 59 /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: 46832
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 75716
Unique aggregates announced from the RIPE address blocks: 49343
RIPE Region origin ASes present in the Internet Routing Table: 15371
RIPE Prefixes per ASN: 4.93
RIPE Region origin ASes announcing only one prefix: 7782
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: 461607872
Equivalent to 27 /8s, 131 /16s and 147 /24s
Percentage of available RIPE address space announced: 74.4
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, 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: 31876
Total LACNIC prefixes after maximum aggregation: 7367
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 30800
Unique aggregates announced from the LACNIC address blocks: 16073
LACNIC Region origin ASes present in the Internet Routing Table: 1431
LACNIC Prefixes per ASN: 21.52
LACNIC Region origin ASes announcing only one prefix: 427
LACNIC Region transit ASes present in the Internet Routing Table: 261
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 81174400
Equivalent to 4 /8s, 214 /16s and 159 /24s
Percentage of available LACNIC address space announced: 53.8
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: 7527
Total AfriNIC prefixes after maximum aggregation: 1808
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 5915
Unique aggregates announced from the AfriNIC address blocks: 1831
AfriNIC Region origin ASes present in the Internet Routing Table: 432
AfriNIC Prefixes per ASN: 13.69
AfriNIC Region origin ASes announcing only one prefix: 130
AfriNIC Region transit ASes present in the Internet Routing Table: 92
Average AfriNIC Region AS path length visible: 5.5
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21886208
Equivalent to 1 /8s, 77 /16s and 245 /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 888 Korea Telecom (KIX)
7545 1604 301 82 TPG Internet Pty Ltd
4755 1420 634 164 TATA Communications formerly
17974 1397 475 29 PT TELEKOMUNIKASI INDONESIA
24560 1116 323 185 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 933 117 141 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 3684 3855 260 bellsouth.net, inc.
4323 2599 1109 402 Time Warner Telecom
1785 1788 697 131 PaeTec Communications, Inc.
19262 1786 4954 284 Verizon Global Networks
20115 1527 1534 650 Charter Communications
6478 1524 296 105 AT&T Worldnet Services
18566 1518 325 180 Covad Communications
7018 1361 6705 882 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 469 267 15 Kazakhtelecom Data Network Ad
34984 466 98 146 BILISIM TELEKOM
3292 447 1996 388 TDC Tele Danmark
8866 442 133 23 Bulgarian Telecommunication C
20940 411 98 315 Akamai Technologies European
3320 406 7604 354 Deutsche Telekom AG
8551 403 353 46 Bezeq International
702 396 1800 310 UUNET - Commercial IP service
12479 384 577 6 Uni2 Autonomous System
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 1351 2704 361 UniNet S.A. de C.V.
28573 1222 961 82 NET Servicos de Comunicao S.A
6503 1175 354 73 AVANTEL, S.A.
7303 908 464 145 Telecom Argentina Stet-France
14420 644 56 93 CORPORACION NACIONAL DE TELEC
22047 540 310 15 VTR PUNTO NET S.A.
3816 512 224 97 Empresa Nacional de Telecomun
7738 479 922 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 798 445 11 TEDATA
24863 770 147 39 LINKdotNET AS number
15475 439 90 10 Nile Online
36992 301 271 14 Etisalat MISR
3741 265 987 227 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 220 78 10 RAYA Telecom - Egypt
6713 212 199 12 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 147 439 87 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 3684 3855 260 bellsouth.net, inc.
4323 2599 1109 402 Time Warner Telecom
4766 2420 9501 888 Korea Telecom (KIX)
1785 1788 697 131 PaeTec Communications, Inc.
19262 1786 4954 284 Verizon Global Networks
7545 1604 301 82 TPG Internet Pty Ltd
20115 1527 1534 650 Charter Communications
6478 1524 296 105 AT&T Worldnet Services
18566 1518 325 180 Covad Communications
4755 1420 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 2599 2197 Time Warner Telecom
1785 1788 1657 PaeTec Communications, Inc.
4766 2420 1532 Korea Telecom (KIX)
7545 1604 1522 TPG Internet Pty Ltd
19262 1786 1502 Verizon Global Networks
6478 1524 1419 AT&T Worldnet Services
17974 1397 1368 PT TELEKOMUNIKASI INDONESIA
18566 1518 1338 Covad Communications
4755 1420 1256 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
24.129.192.0/19 7922 Continental Cablevision
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
31.29.0.0/19 12997 Kyrgyztelecom's Network
31.184.128.0/18 51074 Gostaresh Ertebatate Mabna Co
41.57.192.0/18 22750 BCSNET
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 /12:216
/13:444 /14:766 /15:1369 /16:11530 /17:5666 /18:9337
/19:18914 /20:24465 /21:25033 /22:33344 /23:31832 /24:182233
/25:1131 /26:1374 /27:710 /28:166 /29:16 /30:3
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2273 3684 bellsouth.net, inc.
18566 1495 1518 Covad Communications
6478 1478 1524 AT&T Worldnet Services
4323 1400 2599 Time Warner Telecom
10620 1274 1383 TVCABLE BOGOTA
11492 1242 1285 Cable One
1785 1055 1788 PaeTec Communications, Inc.
7011 1052 1153 Citizens Utilities
6503 957 1175 AVANTEL, S.A.
19262 898 1786 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:260 2:44 4:13 5:1 8:334 12:2027
13:1 14:414 15:15 16:3 17:8 20:9
23:1 24:1503 27:596 31:3 32:60 33:4
34:2 37:1 38:706 40:101 41:2315 44:3
46:642 47:4 49:156 50:101 52:12 55:2
56:2 57:31 58:862 59:477 60:384 61:1109
62:1020 63:1929 64:3849 65:2345 66:4312 67:1777
68:1065 69:2878 70:728 71:400 72:1999 73:1
74:2349 75:292 76:346 77:834 78:698 79:444
80:1071 81:796 82:521 83:463 84:634 85:1046
86:575 87:755 88:355 89:1579 90:160 91:3564
92:494 93:1052 94:1212 95:773 96:455 97:253
98:791 99:33 101:33 107:4 108:118 109:906
110:472 111:721 112:317 113:388 114:508 115:662
116:956 117:681 118:690 119:1041 120:247 121:696
122:1622 123:1056 124:1290 125:1260 128:266 129:156
130:171 131:562 132:108 133:20 134:211 135:49
136:215 137:146 138:295 139:118 140:485 141:203
142:373 143:383 144:490 145:51 146:437 147:200
148:632 149:274 150:169 151:229 152:297 153:180
154:3 155:376 156:177 157:315 158:128 159:382
160:313 161:208 162:278 163:155 164:486 165:343
166:501 167:409 168:729 169:157 170:759 171:69
172:2 173:1230 174:509 175:321 176:1 177:33
178:776 180:813 181:2 182:392 183:242 184:211
186:1030 187:832 188:907 189:1049 190:4597 192:5765
193:4801 194:3504 195:2967 196:1208 197:4 198:3579
199:3831 200:5601 201:1572 202:8282 203:8448 204:4092
205:2293 206:2648 207:3077 208:3901 209:3472 210:2646
211:1352 212:1929 213:1723 214:758 215:63 216:4860
217:1656 218:546 219:378 220:1204 221:476 222:316
223:104
End of report
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