Routing Table Report 04:00 +10GMT Mon 17 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 377879
Prefixes after maximum aggregation: 169496
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 184981
Total ASes present in the Internet Routing Table: 39074
Prefixes per ASN: 9.67
Origin-only ASes present in the Internet Routing Table: 32334
Origin ASes announcing only one prefix: 15489
Transit ASes present in the Internet Routing Table: 5223
Transit-only ASes present in the Internet Routing Table: 134
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: 1450
Unregistered ASNs in the Routing Table: 799
Number of 32-bit ASNs allocated by the RIRs: 1866
Number of 32-bit ASNs visible in the Routing Table: 1517
Prefixes from 32-bit ASNs in the Routing Table: 3473
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 88
Number of addresses announced to Internet: 2483704544
Equivalent to 148 /8s, 10 /16s and 82 /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: 158918
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94497
Total APNIC prefixes after maximum aggregation: 30939
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 90957
Unique aggregates announced from the APNIC address blocks: 37957
APNIC Region origin ASes present in the Internet Routing Table: 4586
APNIC Prefixes per ASN: 19.83
APNIC Region origin ASes announcing only one prefix: 1261
APNIC Region transit ASes present in the Internet Routing Table: 703
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: 628441952
Equivalent to 37 /8s, 117 /16s and 67 /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: 145635
Total ARIN prefixes after maximum aggregation: 74259
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 117637
Unique aggregates announced from the ARIN address blocks: 47790
ARIN Region origin ASes present in the Internet Routing Table: 14724
ARIN Prefixes per ASN: 7.99
ARIN Region origin ASes announcing only one prefix: 5660
ARIN Region transit ASes present in the Internet Routing Table: 1554
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: 804633600
Equivalent to 47 /8s, 245 /16s and 188 /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: 90601
Total RIPE prefixes after maximum aggregation: 50596
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 83296
Unique aggregates announced from the RIPE address blocks: 54124
RIPE Region origin ASes present in the Internet Routing Table: 16043
RIPE Prefixes per ASN: 5.19
RIPE Region origin ASes announcing only one prefix: 7968
RIPE Region transit ASes present in the Internet Routing Table: 2511
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: 490813568
Equivalent to 29 /8s, 65 /16s and 56 /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: 34998
Total LACNIC prefixes after maximum aggregation: 7864
LACNIC Deaggregation factor: 4.45
Prefixes being announced from the LACNIC address blocks: 34403
Unique aggregates announced from the LACNIC address blocks: 17873
LACNIC Region origin ASes present in the Internet Routing Table: 1540
LACNIC Prefixes per ASN: 22.34
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 280
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: 341
Number of LACNIC addresses announced to Internet: 90836864
Equivalent to 5 /8s, 106 /16s and 15 /24s
Percentage of available LACNIC address space announced: 60.2
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: 8514
Total AfriNIC prefixes after maximum aggregation: 2021
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6599
Unique aggregates announced from the AfriNIC address blocks: 1968
AfriNIC Region origin ASes present in the Internet Routing Table: 484
AfriNIC Prefixes per ASN: 13.63
AfriNIC Region origin ASes announcing only one prefix: 151
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: 27805696
Equivalent to 1 /8s, 168 /16s and 72 /24s
Percentage of available AfriNIC address space announced: 41.4
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 2499 11063 960 Korea Telecom (KIX)
17974 1937 519 33 PT TELEKOMUNIKASI INDONESIA
7545 1612 303 86 TPG Internet Pty Ltd
4755 1537 639 173 TATA Communications formerly
7552 1387 1064 7 Vietel Corporation
9829 1165 989 28 BSNL National Internet Backbo
9583 1087 80 503 Sify Limited
4808 1081 2100 308 CNCGROUP IP network: China169
24560 1018 342 229 Bharti Airtel Ltd., Telemedia
18101 952 165 142 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.
18566 2098 383 177 Covad Communications
7029 2093 1008 196 Windstream Communications Inc
1785 1836 680 121 PaeTec Communications, Inc.
4323 1630 1083 391 Time Warner Telecom
20115 1589 1541 635 Charter Communications
22773 1461 2907 100 Cox Communications, Inc.
19262 1395 4728 400 Verizon Global Networks
30036 1391 251 673 Mediacom Communications Corp
7018 1344 7080 850 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 1476 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 502 8169 384 Deutsche Telekom AG
3292 482 2082 408 TDC Tele Danmark
12479 481 593 7 Uni2 Autonomous System
8866 459 133 26 Bulgarian Telecommunication C
29049 424 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 1418 2860 346 UniNet S.A. de C.V.
28573 1377 1015 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 578 72 83 Telconet S.A
6503 573 450 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 655 446 12 TEDATA
15475 443 74 8 Nile Online
36992 300 415 21 Etisalat MISR
3741 279 938 230 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
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 2499 11063 960 Korea Telecom (KIX)
18566 2098 383 177 Covad Communications
7029 2093 1008 196 Windstream Communications Inc
17974 1937 519 33 PT TELEKOMUNIKASI INDONESIA
1785 1836 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 1589 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
18566 2098 1921 Covad Communications
17974 1937 1904 PT TELEKOMUNIKASI INDONESIA
7029 2093 1897 Windstream Communications Inc
1785 1836 1715 PaeTec Communications, Inc.
4766 2499 1539 Korea Telecom (KIX)
10620 1681 1526 TVCABLE BOGOTA
7545 1612 1526 TPG Internet Pty Ltd
8402 1476 1463 Corbina telecom
7552 1387 1380 Vietel Corporation
4755 1537 1364 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 /15:1425 /16:11993 /17:6030 /18:10046
/19:19945 /20:27269 /21:27290 /22:36978 /23:35071 /24:196772
/25:1147 /26:1346 /27:746 /28:166 /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 1783 2093 Windstream Communications Inc
10620 1576 1681 TVCABLE BOGOTA
8402 1453 1476 Corbina telecom
30036 1353 1391 Mediacom Communications Corp
11492 1114 1152 Cable One
1785 1056 1836 PaeTec Communications, Inc.
7011 1048 1166 Citizens Utilities
22773 949 1461 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 2:479 4:15 5:1 6:3 8:359
12:1956 13:1 14:538 15:11 16:3 17:7
20:9 23:58 24:1684 27:965 31:597 32:65
33:4 34:2 36:4 38:751 40:109 41:2645
42:50 44:3 46:988 47:3 49:265 50:445
52:13 55:6 56:2 57:36 58:875 59:491
60:363 61:1169 62:1093 63:1929 64:4113 65:2307
66:4266 67:1963 68:1154 69:3228 70:880 71:377
72:1867 74:2578 75:377 76:346 77:885 78:865
79:479 80:1125 81:825 82:500 83:531 84:638
85:1118 86:400 87:889 88:354 89:1593 90:269
91:4196 92:525 93:1522 94:1301 95:1057 96:438
97:283 98:910 99:37 101:217 103:366 106:70
107:68 108:56 109:1053 110:665 111:788 112:327
113:480 114:609 115:698 116:878 117:713 118:899
119:1237 120:339 121:692 122:1570 123:1020 124:1363
125:1387 128:248 129:179 130:164 131:585 132:144
133:21 134:217 135:54 136:213 137:139 138:290
139:120 140:488 141:294 142:382 143:428 144:493
145:63 146:472 147:214 148:633 149:258 150:167
151:192 152:448 153:178 154:7 155:387 156:203
157:359 158:152 159:476 160:324 161:214 162:339
163:175 164:509 165:372 166:536 167:438 168:737
169:145 170:872 171:86 172:4 173:1695 174:668
175:423 176:278 177:323 178:1053 180:1111 181:36
182:636 183:217 184:371 185:1 186:1283 187:691
188:929 189:857 190:5107 192:5910 193:5020 194:3559
195:3097 196:1240 197:171 198:3630 199:4154 200:5510
201:1652 202:8556 203:8488 204:4289 205:2372 206:2676
207:2822 208:4065 209:3620 210:2690 211:1454 212:2066
213:1767 214:786 215:90 216:5010 217:1614 218:561
219:336 220:1242 221:515 222:346 223:279
End of report
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