Routing Table Report 04:00 +10GMT Tue 18 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 378248
Prefixes after maximum aggregation: 169498
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 185128
Total ASes present in the Internet Routing Table: 39095
Prefixes per ASN: 9.68
Origin-only ASes present in the Internet Routing Table: 32337
Origin ASes announcing only one prefix: 15499
Transit ASes present in the Internet Routing Table: 5240
Transit-only ASes present in the Internet Routing Table: 137
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 1457
Unregistered ASNs in the Routing Table: 803
Number of 32-bit ASNs allocated by the RIRs: 1866
Number of 32-bit ASNs visible in the Routing Table: 1518
Prefixes from 32-bit ASNs in the Routing Table: 3477
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 89
Number of addresses announced to Internet: 2484356320
Equivalent to 148 /8s, 20 /16s and 68 /24s
Percentage of available address space announced: 67.0
Percentage of allocated address space announced: 67.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.5
Total number of prefixes smaller than registry allocations: 159086
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94609
Total APNIC prefixes after maximum aggregation: 30905
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 91082
Unique aggregates announced from the APNIC address blocks: 37980
APNIC Region origin ASes present in the Internet Routing Table: 4585
APNIC Prefixes per ASN: 19.87
APNIC Region origin ASes announcing only one prefix: 1260
APNIC Region transit ASes present in the Internet Routing Table: 709
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 93
Number of APNIC addresses announced to Internet: 628726624
Equivalent to 37 /8s, 121 /16s and 155 /24s
Percentage of available APNIC address space announced: 79.7
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 145732
Total ARIN prefixes after maximum aggregation: 74280
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 117719
Unique aggregates announced from the ARIN address blocks: 47820
ARIN Region origin ASes present in the Internet Routing Table: 14730
ARIN Prefixes per ASN: 7.99
ARIN Region origin ASes announcing only one prefix: 5665
ARIN Region transit ASes present in the Internet Routing Table: 1560
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804676608
Equivalent to 47 /8s, 246 /16s and 100 /24s
Percentage of available ARIN address space announced: 63.9
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, 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: 90711
Total RIPE prefixes after maximum aggregation: 50620
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 83403
Unique aggregates announced from the RIPE address blocks: 54163
RIPE Region origin ASes present in the Internet Routing Table: 16049
RIPE Prefixes per ASN: 5.20
RIPE Region origin ASes announcing only one prefix: 7972
RIPE Region transit ASes present in the Internet Routing Table: 2515
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1067
Number of RIPE addresses announced to Internet: 490712192
Equivalent to 29 /8s, 63 /16s and 172 /24s
Percentage of available RIPE address space announced: 79.1
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: 34997
Total LACNIC prefixes after maximum aggregation: 7855
LACNIC Deaggregation factor: 4.46
Prefixes being announced from the LACNIC address blocks: 34392
Unique aggregates announced from the LACNIC address blocks: 17894
LACNIC Region origin ASes present in the Internet Routing Table: 1540
LACNIC Prefixes per ASN: 22.33
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 281
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 342
Number of LACNIC addresses announced to Internet: 91006592
Equivalent to 5 /8s, 108 /16s and 166 /24s
Percentage of available LACNIC address space announced: 60.3
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: 8550
Total AfriNIC prefixes after maximum aggregation: 2019
AfriNIC Deaggregation factor: 4.23
Prefixes being announced from the AfriNIC address blocks: 6616
Unique aggregates announced from the AfriNIC address blocks: 1994
AfriNIC Region origin ASes present in the Internet Routing Table: 490
AfriNIC Prefixes per ASN: 13.50
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 107
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27845632
Equivalent to 1 /8s, 168 /16s and 228 /24s
Percentage of available AfriNIC address space announced: 41.5
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 2497 11079 958 Korea Telecom (KIX)
17974 1945 519 33 PT TELEKOMUNIKASI INDONESIA
7545 1612 303 86 TPG Internet Pty Ltd
4755 1539 639 173 TATA Communications formerly
7552 1388 1064 7 Vietel Corporation
9829 1162 989 28 BSNL National Internet Backbo
9583 1087 80 503 Sify Limited
4808 1080 2100 308 CNCGROUP IP network: China169
24560 988 336 234 Bharti Airtel Ltd., Telemedia
18101 953 165 143 Reliance Infocom Ltd Internet
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 3547 3815 221 bellsouth.net, inc.
7029 2150 1016 197 Windstream Communications Inc
18566 2098 383 177 Covad Communications
1785 1837 680 121 PaeTec Communications, Inc.
4323 1630 1083 391 Time Warner Telecom
20115 1592 1541 635 Charter Communications
22773 1462 2907 100 Cox Communications, Inc.
19262 1395 4728 400 Verizon Global Networks
30036 1391 251 673 Mediacom Communications Corp
7018 1342 7079 849 AT&T WorldNet Services
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
8402 1505 352 13 Corbina telecom
6830 653 1927 415 UPC Distribution Services
34984 582 108 180 BILISIM TELEKOM
20940 546 183 420 Akamai Technologies European
3320 500 8169 382 Deutsche Telekom AG
12479 482 593 7 Uni2 Autonomous System
3292 481 2080 407 TDC Tele Danmark
8866 458 133 26 Bulgarian Telecommunication C
29049 423 31 55 AzerSat LLC.
8551 404 354 44 Bezeq International
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 1681 310 155 TVCABLE BOGOTA
8151 1423 2861 350 UniNet S.A. de C.V.
28573 1378 1031 68 NET Servicos de Comunicao S.A
7303 1164 683 175 Telecom Argentina Stet-France
22047 580 322 17 VTR PUNTO NET S.A.
27947 579 72 83 Telconet S.A
6503 574 450 69 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 538 233 96 Empresa Nacional de Telecomun
11172 522 85 95 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
24863 801 146 36 LINKdotNET AS number
8452 653 446 12 TEDATA
15475 443 74 8 Nile Online
36992 300 415 21 Etisalat MISR
3741 281 939 232 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 240 32 6 Sudatel Internet Exchange Aut
29571 217 17 13 Ci Telecom Autonomous system
33776 207 13 14 Starcomms Nigeria Limited
12258 198 28 58 Vodacom Internet Company
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 3547 3815 221 bellsouth.net, inc.
4766 2497 11079 958 Korea Telecom (KIX)
7029 2150 1016 197 Windstream Communications Inc
18566 2098 383 177 Covad Communications
17974 1945 519 33 PT TELEKOMUNIKASI INDONESIA
1785 1837 680 121 PaeTec Communications, Inc.
10620 1681 310 155 TVCABLE BOGOTA
4323 1630 1083 391 Time Warner Telecom
7545 1612 303 86 TPG Internet Pty Ltd
20115 1592 1541 635 Charter Communications
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2150 1953 Windstream Communications Inc
18566 2098 1921 Covad Communications
17974 1945 1912 PT TELEKOMUNIKASI INDONESIA
1785 1837 1716 PaeTec Communications, Inc.
4766 2497 1539 Korea Telecom (KIX)
10620 1681 1526 TVCABLE BOGOTA
7545 1612 1526 TPG Internet Pty Ltd
8402 1505 1492 Corbina telecom
7552 1388 1381 Vietel Corporation
4755 1539 1366 TATA Communications formerly
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
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 /9:12 /10:27 /11:81 /12:235
/13:464 /14:808 /15:1426 /16:11999 /17:6032 /18:10050
/19:19942 /20:27280 /21:27347 /22:36998 /23:35111 /24:197005
/25:1151 /26:1339 /27:745 /28:168 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2186 3547 bellsouth.net, inc.
18566 2047 2098 Covad Communications
7029 1837 2150 Windstream Communications Inc
10620 1576 1681 TVCABLE BOGOTA
8402 1482 1505 Corbina telecom
30036 1353 1391 Mediacom Communications Corp
11492 1117 1155 Cable One
1785 1057 1837 PaeTec Communications, Inc.
7011 1048 1166 Citizens Utilities
22773 950 1462 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:399 2:484 4:15 5:1 6:3 8:359
12:1953 13:1 14:539 15:11 16:3 17:7
20:9 23:58 24:1686 27:964 31:596 32:65
33:4 34:2 36:4 38:752 40:109 41:2665
42:52 44:3 46:995 47:3 49:299 50:444
52:13 55:5 56:2 57:37 58:884 59:491
60:363 61:1183 62:1090 63:1929 64:4108 65:2308
66:4278 67:1966 68:1157 69:3228 70:887 71:377
72:1864 74:2583 75:381 76:346 77:884 78:868
79:474 80:1124 81:825 82:500 83:529 84:637
85:1116 86:400 87:890 88:354 89:1595 90:269
91:4201 92:528 93:1525 94:1299 95:1069 96:437
97:283 98:908 99:37 101:216 103:372 106:70
107:69 108:68 109:1055 110:668 111:788 112:327
113:482 114:607 115:698 116:881 117:714 118:900
119:1258 120:339 121:692 122:1568 123:1020 124:1363
125:1386 128:248 129:180 130:166 131:585 132:145
133:21 134:217 135:54 136:212 137:139 138:290
139:120 140:487 141:295 142:382 143:428 144:495
145:63 146:473 147:216 148:641 149:258 150:167
151:192 152:448 153:178 154:7 155:386 156:206
157:359 158:152 159:476 160:324 161:214 162:339
163:174 164:509 165:371 166:536 167:436 168:737
169:145 170:873 171:86 172:4 173:1697 174:672
175:424 176:281 177:323 178:1057 180:1109 181:36
182:636 183:218 184:373 185:1 186:1248 187:692
188:930 189:868 190:5101 192:5906 193:5029 194:3557
195:3104 196:1255 197:167 198:3629 199:4161 200:5507
201:1658 202:8566 203:8485 204:4291 205:2372 206:2677
207:2824 208:4064 209:3625 210:2691 211:1455 212:2067
213:1767 214:788 215:90 216:5021 217:1614 218:562
219:335 220:1241 221:515 222:346 223:278
End of report
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