Routing Table Report 04:00 +10GMT Tue 26 Oct, 2010
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 334595
Prefixes after maximum aggregation: 152797
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 164674
Total ASes present in the Internet Routing Table: 35111
Prefixes per ASN: 9.53
Origin-only ASes present in the Internet Routing Table: 30287
Origin ASes announcing only one prefix: 14797
Transit ASes present in the Internet Routing Table: 4824
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: 350
Unregistered ASNs in the Routing Table: 163
Number of 32-bit ASNs allocated by the RIRs: 840
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: 195
Number of addresses announced to Internet: 2325042848
Equivalent to 138 /8s, 149 /16s and 86 /24s
Percentage of available address space announced: 62.7
Percentage of allocated address space announced: 66.3
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: 137481
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82047
Total APNIC prefixes after maximum aggregation: 27983
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 78954
Unique aggregates announced from the APNIC address blocks: 34609
APNIC Region origin ASes present in the Internet Routing Table: 4221
APNIC Prefixes per ASN: 18.71
APNIC Region origin ASes announcing only one prefix: 1172
APNIC Region transit ASes present in the Internet Routing Table: 674
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 560483872
Equivalent to 33 /8s, 104 /16s and 78 /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: 137441
Total ARIN prefixes after maximum aggregation: 71023
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 108848
Unique aggregates announced from the ARIN address blocks: 43543
ARIN Region origin ASes present in the Internet Routing Table: 13997
ARIN Prefixes per ASN: 7.78
ARIN Region origin ASes announcing only one prefix: 5376
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: 737941760
Equivalent to 43 /8s, 252 /16s and 25 /24s
Percentage of available ARIN address space announced: 62.8
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: 77057
Total RIPE prefixes after maximum aggregation: 44618
RIPE Deaggregation factor: 1.73
Prefixes being announced from the RIPE address blocks: 70482
Unique aggregates announced from the RIPE address blocks: 46212
RIPE Region origin ASes present in the Internet Routing Table: 14925
RIPE Prefixes per ASN: 4.72
RIPE Region origin ASes announcing only one prefix: 7693
RIPE Region transit ASes present in the Internet Routing Table: 2302
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 442628224
Equivalent to 26 /8s, 97 /16s and 248 /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: 30277
Total LACNIC prefixes after maximum aggregation: 7188
LACNIC Deaggregation factor: 4.21
Prefixes being announced from the LACNIC address blocks: 28967
Unique aggregates announced from the LACNIC address blocks: 15402
LACNIC Region origin ASes present in the Internet Routing Table: 1374
LACNIC Prefixes per ASN: 21.08
LACNIC Region origin ASes announcing only one prefix: 431
LACNIC Region transit ASes present in the Internet Routing Table: 240
Average LACNIC Region AS path length visible: 4.3
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 76557440
Equivalent to 4 /8s, 144 /16s and 44 /24s
Percentage of available LACNIC address space announced: 57.0
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: 7543
Total AfriNIC prefixes after maximum aggregation: 1865
AfriNIC Deaggregation factor: 4.04
Prefixes being announced from the AfriNIC address blocks: 5853
Unique aggregates announced from the AfriNIC address blocks: 1724
AfriNIC Region origin ASes present in the Internet Routing Table: 411
AfriNIC Prefixes per ASN: 14.24
AfriNIC Region origin ASes announcing only one prefix: 125
AfriNIC Region transit ASes present in the Internet Routing Table: 90
Average AfriNIC Region AS path length visible: 5.2
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 20924160
Equivalent to 1 /8s, 63 /16s and 71 /24s
Percentage of available AfriNIC address space announced: 62.4
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 1866 9452 516 Korea Telecom (KIX)
7545 1416 299 74 TPG Internet Pty Ltd
4755 1374 382 158 TATA Communications formerly
17488 1364 156 121 Hathway IP Over Cable Interne
17974 1272 303 78 PT TELEKOMUNIKASI INDONESIA
24560 1053 309 173 Bharti Airtel Ltd., Telemedia
9583 1030 76 493 Sify Limited
4808 976 1721 265 CNCGROUP IP network: China169
18101 893 116 134 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 3762 3666 282 bellsouth.net, inc.
4323 2618 1103 393 Time Warner Telecom
1785 1794 698 130 PaeTec Communications, Inc.
19262 1777 4833 279 Verizon Global Networks
20115 1506 1528 647 Charter Communications
7018 1438 5692 920 AT&T WorldNet Services
6478 1388 279 96 AT&T Worldnet Services
2386 1315 556 930 AT&T Data Communications Serv
11492 1237 231 74 Cable One
22773 1209 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 444 2027 389 TDC Tele Danmark
8866 422 133 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 376 80 205 Evolva Telecom
12479 365 576 5 Uni2 Autonomous System
31148 358 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 1329 247 150 TVCABLE BOGOTA
8151 1327 2597 363 UniNet S.A. de C.V.
28573 1221 920 84 NET Servicos de Comunicao S.A
7303 832 441 108 Telecom Argentina Stet-France
6503 790 223 258 AVANTEL, S.A.
22047 563 310 15 VTR PUNTO NET S.A.
14420 545 39 76 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 1083 445 10 TEDATA
24863 743 147 39 LINKdotNET AS number
36992 643 278 160 Etisalat MISR
3741 268 907 225 The Internet Solution
24835 210 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 3762 3666 282 bellsouth.net, inc.
4323 2618 1103 393 Time Warner Telecom
4766 1866 9452 516 Korea Telecom (KIX)
1785 1794 698 130 PaeTec Communications, Inc.
19262 1777 4833 279 Verizon Global Networks
20115 1506 1528 647 Charter Communications
7018 1438 5692 920 AT&T WorldNet Services
7545 1416 299 74 TPG Internet Pty Ltd
6478 1388 279 96 AT&T Worldnet Services
4755 1374 382 158 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 2618 2225 Time Warner Telecom
1785 1794 1664 PaeTec Communications, Inc.
19262 1777 1498 Verizon Global Networks
4766 1866 1350 Korea Telecom (KIX)
7545 1416 1342 TPG Internet Pty Ltd
6478 1388 1292 AT&T Worldnet Services
17488 1364 1243 Hathway IP Over Cable Interne
4755 1374 1216 TATA Communications formerly
17974 1272 1194 PT TELEKOMUNIKASI INDONESIA
10620 1329 1179 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
40331 UNALLOCATED 8.11.167.0/24 7018 AT&T WorldNet Servic
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
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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
42.0.0.0/8 237 Merit Network
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
64.21.192.0/20 11610 Internet Nebraska Corporation
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 /12:207
/13:420 /14:745 /15:1345 /16:11371 /17:5508 /18:9358
/19:18569 /20:23801 /21:23857 /22:31444 /23:30641 /24:174326
/25:997 /26:1125 /27:581 /28:155 /29:12 /30:2
/31:0 /32:7
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2327 3762 bellsouth.net, inc.
4323 1407 2618 Time Warner Telecom
6478 1350 1388 AT&T Worldnet Services
10620 1220 1329 TVCABLE BOGOTA
11492 1194 1237 Cable One
1785 1077 1794 PaeTec Communications, Inc.
18566 1069 1088 Covad Communications
7011 1058 1159 Citizens Utilities
8452 988 1083 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)
----------------------------------------------
1:90 2:11 4:13 8:312 12:2012 13:8
14:44 15:20 16:3 17:9 20:9 24:1392
27:382 31:1 32:61 33:12 38:696 40:97
41:2590 44:3 46:172 47:10 49:4 50:1
52:12 55:6 56:2 57:31 58:837 59:498
60:480 61:1115 62:1003 63:1963 64:3749 65:2345
66:4062 67:1821 68:1136 69:2851 70:757 71:376
72:1935 73:2 74:2335 75:295 76:326 77:875
78:691 79:444 80:1055 81:804 82:501 83:453
84:687 85:1020 86:476 87:694 88:326 89:1571
90:109 91:3128 92:435 93:1007 94:1112 95:698
96:390 97:222 98:634 99:32 101:3 108:64
109:709 110:438 111:616 112:305 113:305 114:482
115:608 116:1138 117:662 118:553 119:979 120:164
121:720 122:1599 123:918 124:1224 125:1271 128:228
129:152 130:165 131:566 132:275 133:20 134:207
135:46 136:212 137:138 138:279 139:109 140:487
141:198 142:348 143:384 144:497 145:55 146:431
147:178 148:621 149:308 150:145 151:231 152:293
153:175 154:3 155:369 156:166 157:338 158:112
159:361 160:312 161:198 162:274 163:164 164:424
165:337 166:470 167:425 168:682 169:154 170:718
171:61 172:2 173:1047 174:499 175:242 176:1
177:1 178:537 180:681 181:1 182:250 183:236
184:132 186:740 187:546 188:850 189:808 190:4188
192:5766 193:4750 194:3436 195:2820 196:1194 198:3539
199:3632 200:5411 201:1585 202:8165 203:8270 204:4008
205:2325 206:2567 207:3024 208:3905 209:3476 210:2558
211:1283 212:1800 213:1719 214:669 215:66 216:4770
217:1559 218:527 219:401 220:1182 221:430 222:343
223:58
End of report