Routing Table Report 04:00 +10GMT Thu 27 Jan, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 343114
Prefixes after maximum aggregation: 154781
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 169290
Total ASes present in the Internet Routing Table: 35736
Prefixes per ASN: 9.60
Origin-only ASes present in the Internet Routing Table: 30808
Origin ASes announcing only one prefix: 14970
Transit ASes present in the Internet Routing Table: 4928
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: 321
Unregistered ASNs in the Routing Table: 127
Number of 32-bit ASNs allocated by the RIRs: 1040
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 209
Number of addresses announced to Internet: 2348008672
Equivalent to 139 /8s, 243 /16s and 196 /24s
Percentage of available address space announced: 63.3
Percentage of allocated address space announced: 65.4
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 87.9
Total number of prefixes smaller than registry allocations: 141027
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85271
Total APNIC prefixes after maximum aggregation: 28815
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 82047
Unique aggregates announced from the APNIC address blocks: 35531
APNIC Region origin ASes present in the Internet Routing Table: 4312
APNIC Prefixes per ASN: 19.03
APNIC Region origin ASes announcing only one prefix: 1215
APNIC Region transit ASes present in the Internet Routing Table: 693
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 583854624
Equivalent to 34 /8s, 204 /16s and 234 /24s
Percentage of available APNIC address space announced: 79.1
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: 137890
Total ARIN prefixes after maximum aggregation: 70688
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 108913
Unique aggregates announced from the ARIN address blocks: 44423
ARIN Region origin ASes present in the Internet Routing Table: 14147
ARIN Prefixes per ASN: 7.70
ARIN Region origin ASes announcing only one prefix: 5409
ARIN Region transit ASes present in the Internet Routing Table: 1468
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 750354816
Equivalent to 44 /8s, 185 /16s and 129 /24s
Percentage of available ARIN address space announced: 63.0
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, 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, 100/8,
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: 80676
Total RIPE prefixes after maximum aggregation: 46087
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 74142
Unique aggregates announced from the RIPE address blocks: 48193
RIPE Region origin ASes present in the Internet Routing Table: 15241
RIPE Prefixes per ASN: 4.86
RIPE Region origin ASes announcing only one prefix: 7783
RIPE Region transit ASes present in the Internet Routing Table: 2367
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 456688960
Equivalent to 27 /8s, 56 /16s and 133 /24s
Percentage of available RIPE address space announced: 75.6
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, 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, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 31606
Total LACNIC prefixes after maximum aggregation: 7242
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 30281
Unique aggregates announced from the LACNIC address blocks: 15786
LACNIC Region origin ASes present in the Internet Routing Table: 1420
LACNIC Prefixes per ASN: 21.32
LACNIC Region origin ASes announcing only one prefix: 428
LACNIC Region transit ASes present in the Internet Routing Table: 250
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 80184448
Equivalent to 4 /8s, 199 /16s and 132 /24s
Percentage of available LACNIC address space announced: 59.7
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: 7443
Total AfriNIC prefixes after maximum aggregation: 1829
AfriNIC Deaggregation factor: 4.07
Prefixes being announced from the AfriNIC address blocks: 5829
Unique aggregates announced from the AfriNIC address blocks: 1797
AfriNIC Region origin ASes present in the Internet Routing Table: 436
AfriNIC Prefixes per ASN: 13.37
AfriNIC Region origin ASes announcing only one prefix: 135
AfriNIC Region transit ASes present in the Internet Routing Table: 96
Average AfriNIC Region AS path length visible: 5.4
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21613312
Equivalent to 1 /8s, 73 /16s and 203 /24s
Percentage of available AfriNIC address space announced: 42.9
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1913 9485 524 Korea Telecom (KIX)
7545 1589 301 84 TPG Internet Pty Ltd
4755 1401 636 159 TATA Communications formerly
17974 1388 467 27 PT TELEKOMUNIKASI INDONESIA
24560 1095 317 181 Bharti Airtel Ltd., Telemedia
9583 1043 76 486 Sify Limited
4808 1020 2108 287 CNCGROUP IP network: China169
17488 949 162 103 Hathway IP Over Cable Interne
18101 923 117 142 Reliance Infocom Ltd Internet
9829 864 731 49 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 3710 3855 265 bellsouth.net, inc.
4323 2642 1077 403 Time Warner Telecom
19262 1840 4943 284 Verizon Global Networks
1785 1788 697 134 PaeTec Communications, Inc.
20115 1519 1529 643 Charter Communications
6478 1474 291 72 AT&T Worldnet Services
7018 1361 6674 877 AT&T WorldNet Services
2386 1298 553 934 AT&T Data Communications Serv
22773 1274 2864 77 Cox Communications, Inc.
11492 1270 235 71 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 503 1763 308 UPC Distribution Services
9198 465 266 14 Kazakhtelecom Data Network Ad
34984 457 97 137 BILISIM TELEKOM
3292 444 2010 387 TDC Tele Danmark
8866 438 133 23 Bulgarian Telecommunication C
12479 407 577 6 Uni2 Autonomous System
3320 403 7619 352 Deutsche Telekom AG
8551 402 353 46 Bezeq International
702 396 1816 309 UUNET - Commercial IP service
20940 393 92 303 Akamai Technologies European
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 1357 252 165 TVCABLE BOGOTA
8151 1328 2619 355 UniNet S.A. de C.V.
28573 1245 959 82 NET Servicos de Comunicao S.A
6503 1148 355 78 AVANTEL, S.A.
7303 887 461 114 Telecom Argentina Stet-France
14420 612 54 89 CORPORACION NACIONAL DE TELEC
22047 567 310 15 VTR PUNTO NET S.A.
3816 523 222 99 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 455 33 33 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 772 445 11 TEDATA
24863 761 147 39 LINKdotNET AS number
36992 640 329 19 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 216 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 193 17 11 Ci Telecom Autonomous system
16637 161 440 90 MTN Network Solutions
2018 155 277 64 Tertiary Education Network
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 3710 3855 265 bellsouth.net, inc.
4323 2642 1077 403 Time Warner Telecom
4766 1913 9485 524 Korea Telecom (KIX)
19262 1840 4943 284 Verizon Global Networks
1785 1788 697 134 PaeTec Communications, Inc.
7545 1589 301 84 TPG Internet Pty Ltd
20115 1519 1529 643 Charter Communications
6478 1474 291 72 AT&T Worldnet Services
4755 1401 636 159 TATA Communications formerly
17974 1388 467 27 PT TELEKOMUNIKASI INDONESIA
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 2642 2239 Time Warner Telecom
1785 1788 1654 PaeTec Communications, Inc.
19262 1840 1556 Verizon Global Networks
7545 1589 1505 TPG Internet Pty Ltd
6478 1474 1402 AT&T Worldnet Services
4766 1913 1389 Korea Telecom (KIX)
17974 1388 1361 PT TELEKOMUNIKASI INDONESIA
4755 1401 1242 TATA Communications formerly
11492 1270 1199 Cable One
22773 1274 1197 Cox Communications, Inc.
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
5.0.0.0/16 12654 RIPE NCC RIS Project
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Continental Cablevision
37.0.0.0/16 12654 RIPE NCC RIS Project
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
41.57.192.0/18 22750 BCSNET
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
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 /11:70 /12:215
/13:439 /14:763 /15:1360 /16:11484 /17:5593 /18:9258
/19:18953 /20:24211 /21:24636 /22:32555 /23:31481 /24:179216
/25:976 /26:1092 /27:573 /28:158 /29:16 /30:2
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2289 3710 bellsouth.net, inc.
4323 1429 2642 Time Warner Telecom
6478 1428 1474 AT&T Worldnet Services
10620 1248 1357 TVCABLE BOGOTA
11492 1226 1270 Cable One
18566 1119 1138 Covad Communications
7011 1068 1174 Citizens Utilities
1785 1059 1788 PaeTec Communications, Inc.
19262 953 1840 Verizon Global Networks
6503 933 1148 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:166 2:30 4:13 5:1 8:329 12:2032
13:1 14:378 15:15 16:3 17:8 20:9
23:1 24:1463 27:555 32:61 33:5 34:2
36:1 37:1 38:693 40:101 41:2304 42:1
44:3 46:510 47:5 49:143 50:58 52:12
55:6 56:2 57:30 58:871 59:483 60:391
61:1133 62:1021 63:1921 64:3762 65:2333 66:4075
67:1753 68:997 69:2866 70:717 71:392 72:1985
73:1 74:2298 75:292 76:329 77:817 78:711
79:436 80:1034 81:794 82:531 83:459 84:642
85:1044 86:530 87:725 88:353 89:1567 90:157
91:3415 92:492 93:1012 94:1153 95:768 96:413
97:248 98:755 99:33 101:25 107:3 108:80
109:848 110:469 111:693 112:311 113:359 114:498
115:633 116:886 117:677 118:636 119:1011 120:241
121:709 122:1609 123:1047 124:1268 125:1213 128:247
129:157 130:172 131:570 132:110 133:20 134:218
135:49 136:216 137:147 138:293 139:119 140:489
141:198 142:364 143:381 144:487 145:51 146:424
147:195 148:626 149:273 150:152 151:230 152:303
153:175 154:3 155:346 156:174 157:341 158:129
159:377 160:314 161:203 162:277 163:151 164:469
165:334 166:481 167:422 168:752 169:150 170:747
171:68 172:2 173:1256 174:515 175:312 176:1
177:4 178:753 180:764 182:398 183:250 184:207
186:961 187:792 188:905 189:1037 190:4371 192:5783
193:4793 194:3494 195:2947 196:1186 197:2 198:3553
199:3746 200:5574 201:1580 202:8298 203:8408 204:4090
205:2343 206:2533 207:2967 208:3874 209:3477 210:2636
211:1334 212:1840 213:1709 214:755 215:62 216:4822
217:1611 218:543 219:374 220:1198 221:446 222:347
223:92
End of report
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