Routing Table Report 04:00 +10GMT Wed 26 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 381121
Prefixes after maximum aggregation: 166184
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 185800
Total ASes present in the Internet Routing Table: 39171
Prefixes per ASN: 9.73
Origin-only ASes present in the Internet Routing Table: 32362
Origin ASes announcing only one prefix: 15515
Transit ASes present in the Internet Routing Table: 5255
Transit-only ASes present in the Internet Routing Table: 131
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: 1519
Unregistered ASNs in the Routing Table: 829
Number of 32-bit ASNs allocated by the RIRs: 1889
Number of 32-bit ASNs visible in the Routing Table: 1554
Prefixes from 32-bit ASNs in the Routing Table: 3581
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 90
Number of addresses announced to Internet: 2487438176
Equivalent to 148 /8s, 67 /16s and 75 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
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: 161118
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94788
Total APNIC prefixes after maximum aggregation: 30964
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 91239
Unique aggregates announced from the APNIC address blocks: 37999
APNIC Region origin ASes present in the Internet Routing Table: 4589
APNIC Prefixes per ASN: 19.88
APNIC Region origin ASes announcing only one prefix: 1266
APNIC Region transit ASes present in the Internet Routing Table: 713
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: 97
Number of APNIC addresses announced to Internet: 629346912
Equivalent to 37 /8s, 131 /16s and 18 /24s
Percentage of available APNIC address space announced: 79.8
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: 145729
Total ARIN prefixes after maximum aggregation: 74496
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 117633
Unique aggregates announced from the ARIN address blocks: 48124
ARIN Region origin ASes present in the Internet Routing Table: 14749
ARIN Prefixes per ASN: 7.98
ARIN Region origin ASes announcing only one prefix: 5666
ARIN Region transit ASes present in the Internet Routing Table: 1558
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: 804667392
Equivalent to 47 /8s, 246 /16s and 64 /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: 92998
Total RIPE prefixes after maximum aggregation: 50729
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 85651
Unique aggregates announced from the RIPE address blocks: 54220
RIPE Region origin ASes present in the Internet Routing Table: 16068
RIPE Prefixes per ASN: 5.33
RIPE Region origin ASes announcing only one prefix: 7980
RIPE Region transit ASes present in the Internet Routing Table: 2526
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: 1089
Number of RIPE addresses announced to Internet: 491150272
Equivalent to 29 /8s, 70 /16s and 91 /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: 35313
Total LACNIC prefixes after maximum aggregation: 7896
LACNIC Deaggregation factor: 4.47
Prefixes being announced from the LACNIC address blocks: 34756
Unique aggregates announced from the LACNIC address blocks: 18086
LACNIC Region origin ASes present in the Internet Routing Table: 1542
LACNIC Prefixes per ASN: 22.54
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 279
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 352
Number of LACNIC addresses announced to Internet: 91392704
Equivalent to 5 /8s, 114 /16s and 138 /24s
Percentage of available LACNIC address space announced: 60.5
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: 8541
Total AfriNIC prefixes after maximum aggregation: 2021
AfriNIC Deaggregation factor: 4.23
Prefixes being announced from the AfriNIC address blocks: 6616
Unique aggregates announced from the AfriNIC address blocks: 1988
AfriNIC Region origin ASes present in the Internet Routing Table: 493
AfriNIC Prefixes per ASN: 13.42
AfriNIC Region origin ASes announcing only one prefix: 158
AfriNIC Region transit ASes present in the Internet Routing Table: 108
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: 27851520
Equivalent to 1 /8s, 168 /16s and 251 /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 2504 11096 965 Korea Telecom (KIX)
17974 1896 519 33 PT TELEKOMUNIKASI INDONESIA
7545 1614 303 87 TPG Internet Pty Ltd
4755 1540 637 174 TATA Communications formerly
7552 1390 1064 8 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1091 80 499 Sify Limited
4808 1088 2097 311 CNCGROUP IP network: China169
24560 964 342 218 Bharti Airtel Ltd., Telemedia
18101 953 166 150 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 3544 3814 222 bellsouth.net, inc.
7029 2327 1016 197 Windstream Communications Inc
18566 2098 383 177 Covad Communications
1785 1841 680 122 PaeTec Communications, Inc.
4323 1623 1078 388 Time Warner Telecom
20115 1595 1546 620 Charter Communications
22773 1462 2907 100 Cox Communications, Inc.
30036 1397 253 672 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1314 7029 864 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
3352 2193 2317 51 Ibernet, Internet Access Netw
8402 1527 352 13 Corbina telecom
6830 653 1927 415 UPC Distribution Services
34984 589 108 179 BILISIM TELEKOM
20940 548 182 422 Akamai Technologies European
3320 504 8169 384 Deutsche Telekom AG
3292 482 2080 409 TDC Tele Danmark
12479 481 595 8 Uni2 Autonomous System
8866 459 133 26 Bulgarian Telecommunication C
29049 423 31 55 AzerSat LLC.
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 1694 313 155 TVCABLE BOGOTA
8151 1429 2913 352 UniNet S.A. de C.V.
28573 1420 1032 69 NET Servicos de Comunicao S.A
7303 1229 747 177 Telecom Argentina Stet-France
27947 588 72 84 Telconet S.A
22047 580 322 17 VTR PUNTO NET S.A.
6503 571 450 69 AVANTEL, S.A.
7738 552 1050 31 Telecomunicacoes da Bahia S.A
3816 538 233 95 Empresa Nacional de Telecomun
11172 523 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 804 146 36 LINKdotNET AS number
8452 633 446 12 TEDATA
15475 443 74 8 Nile Online
36992 298 415 21 Etisalat MISR
3741 280 939 229 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
15706 240 32 6 Sudatel Internet Exchange Aut
29571 218 17 13 Ci Telecom Autonomous system
33776 199 12 16 Starcomms Nigeria Limited
12258 196 28 57 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 3544 3814 222 bellsouth.net, inc.
4766 2504 11096 965 Korea Telecom (KIX)
7029 2327 1016 197 Windstream Communications Inc
3352 2193 2317 51 Ibernet, Internet Access Netw
18566 2098 383 177 Covad Communications
17974 1896 519 33 PT TELEKOMUNIKASI INDONESIA
1785 1841 680 122 PaeTec Communications, Inc.
10620 1694 313 155 TVCABLE BOGOTA
4323 1623 1078 388 Time Warner Telecom
7545 1614 303 87 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
3352 2193 2142 Ibernet, Internet Access Netw
7029 2327 2130 Windstream Communications Inc
18566 2098 1921 Covad Communications
17974 1896 1863 PT TELEKOMUNIKASI INDONESIA
1785 1841 1719 PaeTec Communications, Inc.
4766 2504 1539 Korea Telecom (KIX)
10620 1694 1539 TVCABLE BOGOTA
7545 1614 1527 TPG Internet Pty Ltd
8402 1527 1514 Corbina telecom
7552 1390 1382 Vietel Corporation
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 /12:236
/13:464 /14:808 /15:1427 /16:12018 /17:6040 /18:10071
/19:19962 /20:27532 /21:27670 /22:37431 /23:35959 /24:197912
/25:1162 /26:1356 /27:758 /28:167 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2184 3544 bellsouth.net, inc.
18566 2047 2098 Covad Communications
7029 1998 2327 Windstream Communications Inc
3352 1742 2193 Ibernet, Internet Access Netw
10620 1589 1694 TVCABLE BOGOTA
8402 1503 1527 Corbina telecom
30036 1358 1397 Mediacom Communications Corp
11492 1118 1156 Cable One
1785 1057 1841 PaeTec Communications, Inc.
7011 1050 1168 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:408 2:488 4:15 5:1 6:3 8:361
12:1956 13:1 14:544 15:11 16:3 17:7
20:9 23:58 24:1671 27:965 31:614 32:65
33:4 34:2 36:4 38:755 40:110 41:2661
42:54 44:3 46:1006 47:3 49:291 50:442
52:13 55:6 56:2 57:39 58:888 59:494
60:363 61:1174 62:1085 63:1959 64:4051 65:2308
66:4287 67:1991 68:1153 69:3192 70:893 71:379
72:1801 74:2561 75:391 76:320 77:884 78:872
79:456 80:1590 81:956 82:500 83:576 84:623
85:1124 86:404 87:892 88:418 89:1601 90:237
91:4222 92:531 93:1538 94:1308 95:1095 96:435
97:284 98:922 99:37 101:220 103:398 106:70
107:75 108:72 109:1047 110:668 111:791 112:332
113:485 114:614 115:706 116:882 117:720 118:900
119:1261 120:339 121:692 122:1565 123:1016 124:1357
125:1363 128:243 129:184 130:165 131:589 132:146
133:21 134:218 135:54 136:213 137:140 138:284
139:123 140:485 141:300 142:389 143:426 144:491
145:63 146:475 147:223 148:641 149:267 150:166
151:192 152:447 153:178 154:7 155:388 156:208
157:362 158:153 159:481 160:326 161:215 162:339
163:173 164:510 165:370 166:537 167:438 168:742
169:146 170:864 171:86 172:4 173:1712 174:685
175:421 176:288 177:349 178:1065 180:1102 181:36
182:652 183:218 184:374 185:1 186:1291 187:723
188:936 189:874 190:5138 192:5926 193:5042 194:3560
195:3107 196:1254 197:161 198:3628 199:4174 200:5523
201:1685 202:8566 203:8493 204:4298 205:2363 206:2671
207:2829 208:4022 209:3572 210:2696 211:1458 212:2088
213:1802 214:790 215:94 216:4928 217:1612 218:562
219:343 220:1243 221:516 222:346 223:280
End of report
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