Routing Table Report 04:00 +10GMT Mon 24 Jan, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 343046
Prefixes after maximum aggregation: 154752
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 169153
Total ASes present in the Internet Routing Table: 35674
Prefixes per ASN: 9.62
Origin-only ASes present in the Internet Routing Table: 30748
Origin ASes announcing only one prefix: 14931
Transit ASes present in the Internet Routing Table: 4926
Transit-only ASes present in the Internet Routing Table: 120
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 317
Unregistered ASNs in the Routing Table: 128
Number of 32-bit ASNs allocated by the RIRs: 1037
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: 208
Number of addresses announced to Internet: 2341659744
Equivalent to 139 /8s, 146 /16s and 228 /24s
Percentage of available address space announced: 63.2
Percentage of allocated address space announced: 65.2
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 87.8
Total number of prefixes smaller than registry allocations: 141135
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85163
Total APNIC prefixes after maximum aggregation: 28792
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 81957
Unique aggregates announced from the APNIC address blocks: 35490
APNIC Region origin ASes present in the Internet Routing Table: 4304
APNIC Prefixes per ASN: 19.04
APNIC Region origin ASes announcing only one prefix: 1212
APNIC Region transit ASes present in the Internet Routing Table: 690
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 582314528
Equivalent to 34 /8s, 181 /16s and 106 /24s
Percentage of available APNIC address space announced: 78.9
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: 137991
Total ARIN prefixes after maximum aggregation: 70650
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 108838
Unique aggregates announced from the ARIN address blocks: 44386
ARIN Region origin ASes present in the Internet Routing Table: 14132
ARIN Prefixes per ASN: 7.70
ARIN Region origin ASes announcing only one prefix: 5389
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: 746050176
Equivalent to 44 /8s, 119 /16s and 210 /24s
Percentage of available ARIN address space announced: 62.6
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: 80718
Total RIPE prefixes after maximum aggregation: 46019
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 74127
Unique aggregates announced from the RIPE address blocks: 48057
RIPE Region origin ASes present in the Internet Routing Table: 15207
RIPE Prefixes per ASN: 4.87
RIPE Region origin ASes announcing only one prefix: 7765
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: 33
Number of RIPE addresses announced to Internet: 456116800
Equivalent to 27 /8s, 47 /16s and 202 /24s
Percentage of available RIPE address space announced: 75.5
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: 31470
Total LACNIC prefixes after maximum aggregation: 7222
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 30271
Unique aggregates announced from the LACNIC address blocks: 15738
LACNIC Region origin ASes present in the Internet Routing Table: 1417
LACNIC Prefixes per ASN: 21.36
LACNIC Region origin ASes announcing only one prefix: 428
LACNIC Region transit ASes present in the Internet Routing Table: 249
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 79569408
Equivalent to 4 /8s, 190 /16s and 34 /24s
Percentage of available LACNIC address space announced: 59.3
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: 7480
Total AfriNIC prefixes after maximum aggregation: 1950
AfriNIC Deaggregation factor: 3.84
Prefixes being announced from the AfriNIC address blocks: 5830
Unique aggregates announced from the AfriNIC address blocks: 1818
AfriNIC Region origin ASes present in the Internet Routing Table: 433
AfriNIC Prefixes per ASN: 13.46
AfriNIC Region origin ASes announcing only one prefix: 137
AfriNIC Region transit ASes present in the Internet Routing Table: 92
Average AfriNIC Region AS path length visible: 5.4
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21703936
Equivalent to 1 /8s, 75 /16s and 45 /24s
Percentage of available AfriNIC address space announced: 43.1
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 1911 9485 522 Korea Telecom (KIX)
7545 1587 301 83 TPG Internet Pty Ltd
4755 1400 636 160 TATA Communications formerly
17974 1380 467 27 PT TELEKOMUNIKASI INDONESIA
24560 1095 317 181 Bharti Airtel Ltd., Telemedia
9583 1072 80 509 Sify Limited
4808 1020 2108 287 CNCGROUP IP network: China169
17488 949 162 103 Hathway IP Over Cable Interne
18101 921 117 141 Reliance Infocom Ltd Internet
9829 863 729 48 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 266 bellsouth.net, inc.
4323 2647 1077 403 Time Warner Telecom
19262 1839 4943 283 Verizon Global Networks
1785 1790 697 133 PaeTec Communications, Inc.
20115 1524 1530 640 Charter Communications
6478 1467 290 91 AT&T Worldnet Services
7018 1366 5650 879 AT&T WorldNet Services
2386 1298 553 934 AT&T Data Communications Serv
22773 1275 2864 77 Cox Communications, Inc.
11492 1258 234 76 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 500 1763 306 UPC Distribution Services
9198 462 266 14 Kazakhtelecom Data Network Ad
34984 457 97 137 BILISIM TELEKOM
3292 443 2010 388 TDC Tele Danmark
8866 438 133 23 Bulgarian Telecommunication C
12479 404 577 6 Uni2 Autonomous System
3320 402 7619 351 Deutsche Telekom AG
8551 402 353 46 Bezeq International
702 398 1833 311 UUNET - Commercial IP service
20940 391 91 303 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 1334 250 169 TVCABLE BOGOTA
8151 1327 2613 363 UniNet S.A. de C.V.
28573 1244 954 80 NET Servicos de Comunicao S.A
6503 1148 355 78 AVANTEL, S.A.
7303 887 461 114 Telecom Argentina Stet-France
14420 604 50 89 CORPORACION NACIONAL DE TELEC
22047 567 310 15 VTR PUNTO NET S.A.
3816 521 222 102 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 756 445 11 TEDATA
24863 754 147 39 LINKdotNET AS number
36992 667 301 143 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 216 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 194 19 11 Ci Telecom Autonomous system
33776 191 12 13 Starcomms Nigeria Limited
2018 167 277 64 Tertiary Education Network
16637 160 440 90 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 3710 3855 266 bellsouth.net, inc.
4323 2647 1077 403 Time Warner Telecom
4766 1911 9485 522 Korea Telecom (KIX)
19262 1839 4943 283 Verizon Global Networks
1785 1790 697 133 PaeTec Communications, Inc.
7545 1587 301 83 TPG Internet Pty Ltd
20115 1524 1530 640 Charter Communications
6478 1467 290 91 AT&T Worldnet Services
4755 1400 636 160 TATA Communications formerly
17974 1380 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 2647 2244 Time Warner Telecom
1785 1790 1657 PaeTec Communications, Inc.
19262 1839 1556 Verizon Global Networks
7545 1587 1504 TPG Internet Pty Ltd
4766 1911 1389 Korea Telecom (KIX)
6478 1467 1376 AT&T Worldnet Services
17974 1380 1353 PT TELEKOMUNIKASI INDONESIA
4755 1400 1240 TATA Communications formerly
22773 1275 1198 Cox Communications, Inc.
11492 1258 1182 Cable One
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 /10:25 /11:70 /12:214
/13:438 /14:762 /15:1359 /16:11482 /17:5607 /18:9296
/19:18930 /20:24203 /21:24591 /22:32455 /23:31401 /24:179367
/25:980 /26:1079 /27:574 /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 1430 2647 Time Warner Telecom
6478 1421 1467 AT&T Worldnet Services
10620 1225 1334 TVCABLE BOGOTA
11492 1214 1258 Cable One
18566 1118 1137 Covad Communications
7011 1068 1174 Citizens Utilities
1785 1061 1790 PaeTec Communications, Inc.
19262 952 1839 Verizon Global Networks
6503 934 1148 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:165 2:25 4:13 5:1 8:331 12:2028
13:1 14:377 15:15 16:3 17:8 20:9
23:1 24:1453 27:549 32:61 33:5 34:2
36:1 37:1 38:692 40:100 41:2307 42:1
44:3 46:511 47:5 49:142 50:56 52:12
55:6 56:2 57:31 58:868 59:483 60:391
61:1133 62:1016 63:1923 64:3755 65:2334 66:4082
67:1754 68:997 69:2878 70:719 71:392 72:1990
73:1 74:2295 75:291 76:327 77:852 78:710
79:437 80:1037 81:816 82:530 83:456 84:642
85:1041 86:530 87:725 88:343 89:1563 90:154
91:3423 92:491 93:1048 94:1146 95:764 96:413
97:248 98:753 99:33 101:18 107:3 108:79
109:853 110:467 111:694 112:309 113:365 114:484
115:637 116:883 117:677 118:631 119:1022 120:240
121:707 122:1609 123:1043 124:1266 125:1211 128:247
129:157 130:171 131:568 132:109 133:20 134:217
135:50 136:216 137:146 138:292 139:127 140:484
141:198 142:361 143:376 144:487 145:52 146:415
147:194 148:624 149:273 150:150 151:230 152:303
153:175 154:3 155:346 156:173 157:341 158:126
159:377 160:312 161:200 162:276 163:159 164:468
165:334 166:600 167:421 168:746 169:151 170:747
171:69 172:2 173:1247 174:513 175:307 176:1
177:4 178:748 180:760 182:393 183:249 184:205
186:958 187:810 188:908 189:1037 190:4357 192:5781
193:4787 194:3491 195:2929 196:1232 197:2 198:3552
199:3746 200:5605 201:1578 202:8281 203:8424 204:4087
205:2339 206:2523 207:2971 208:3867 209:3464 210:2640
211:1335 212:1869 213:1708 214:751 215:62 216:4831
217:1623 218:546 219:374 220:1198 221:446 222:346
223:90
End of report
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