Routing Table Report 04:00 +10GMT Wed 19 Jan, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 341786
Prefixes after maximum aggregation: 154475
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 168808
Total ASes present in the Internet Routing Table: 35665
Prefixes per ASN: 9.58
Origin-only ASes present in the Internet Routing Table: 30730
Origin ASes announcing only one prefix: 14938
Transit ASes present in the Internet Routing Table: 4935
Transit-only ASes present in the Internet Routing Table: 123
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: 319
Unregistered ASNs in the Routing Table: 128
Number of 32-bit ASNs allocated by the RIRs: 1010
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: 216
Number of addresses announced to Internet: 2437847904
Equivalent to 145 /8s, 78 /16s and 155 /24s
Percentage of available address space announced: 65.8
Percentage of allocated address space announced: 67.9
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 87.7
Total number of prefixes smaller than registry allocations: 140475
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 84772
Total APNIC prefixes after maximum aggregation: 28734
APNIC Deaggregation factor: 2.95
Prefixes being announced from the APNIC address blocks: 81572
Unique aggregates announced from the APNIC address blocks: 35415
APNIC Region origin ASes present in the Internet Routing Table: 4304
APNIC Prefixes per ASN: 18.95
APNIC Region origin ASes announcing only one prefix: 1214
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: 580695584
Equivalent to 34 /8s, 156 /16s and 182 /24s
Percentage of available APNIC address space announced: 78.7
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: 137617
Total ARIN prefixes after maximum aggregation: 70491
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 108622
Unique aggregates announced from the ARIN address blocks: 44325
ARIN Region origin ASes present in the Internet Routing Table: 14125
ARIN Prefixes per ASN: 7.69
ARIN Region origin ASes announcing only one prefix: 5396
ARIN Region transit ASes present in the Internet Routing Table: 1480
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 778500224
Equivalent to 46 /8s, 102 /16s and 248 /24s
Percentage of available ARIN address space announced: 65.4
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: 80504
Total RIPE prefixes after maximum aggregation: 45961
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 73941
Unique aggregates announced from the RIPE address blocks: 48004
RIPE Region origin ASes present in the Internet Routing Table: 15200
RIPE Prefixes per ASN: 4.86
RIPE Region origin ASes announcing only one prefix: 7758
RIPE Region transit ASes present in the Internet Routing Table: 2364
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 33
Number of RIPE addresses announced to Internet: 455523392
Equivalent to 27 /8s, 38 /16s and 188 /24s
Percentage of available RIPE address space announced: 75.4
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: 31232
Total LACNIC prefixes after maximum aggregation: 7206
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 30000
Unique aggregates announced from the LACNIC address blocks: 15660
LACNIC Region origin ASes present in the Internet Routing Table: 1416
LACNIC Prefixes per ASN: 21.19
LACNIC Region origin ASes announcing only one prefix: 433
LACNIC Region transit ASes present in the Internet Routing Table: 248
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 79082496
Equivalent to 4 /8s, 182 /16s and 180 /24s
Percentage of available LACNIC address space announced: 58.9
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: 7438
Total AfriNIC prefixes after maximum aggregation: 1967
AfriNIC Deaggregation factor: 3.78
Prefixes being announced from the AfriNIC address blocks: 5772
Unique aggregates announced from the AfriNIC address blocks: 1872
AfriNIC Region origin ASes present in the Internet Routing Table: 436
AfriNIC Prefixes per ASN: 13.24
AfriNIC Region origin ASes announcing only one prefix: 137
AfriNIC Region transit ASes present in the Internet Routing Table: 93
Average AfriNIC Region AS path length visible: 5.4
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21745408
Equivalent to 1 /8s, 75 /16s and 207 /24s
Percentage of available AfriNIC address space announced: 43.2
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 1909 9484 521 Korea Telecom (KIX)
7545 1565 300 79 TPG Internet Pty Ltd
17974 1412 459 28 PT TELEKOMUNIKASI INDONESIA
4755 1396 636 159 TATA Communications formerly
24560 1095 317 181 Bharti Airtel Ltd., Telemedia
9583 1041 76 486 Sify Limited
4808 1020 2108 287 CNCGROUP IP network: China169
17488 949 162 103 Hathway IP Over Cable Interne
18101 920 117 142 Reliance Infocom Ltd Internet
9829 850 726 50 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 3711 3855 266 bellsouth.net, inc.
4323 2646 1077 403 Time Warner Telecom
19262 1838 4941 286 Verizon Global Networks
1785 1788 697 133 PaeTec Communications, Inc.
20115 1525 1530 641 Charter Communications
6478 1452 288 68 AT&T Worldnet Services
7018 1370 5651 883 AT&T WorldNet Services
2386 1299 553 934 AT&T Data Communications Serv
22773 1274 2864 77 Cox Communications, Inc.
11492 1258 233 81 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 501 1763 307 UPC Distribution Services
34984 457 97 137 BILISIM TELEKOM
3292 443 2010 386 TDC Tele Danmark
8866 437 133 23 Bulgarian Telecommunication C
9198 433 266 14 Kazakhtelecom Data Network Ad
12479 403 577 6 Uni2 Autonomous System
8551 402 353 46 Bezeq International
3320 401 7618 350 Deutsche Telekom AG
702 398 1849 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 1349 251 165 TVCABLE BOGOTA
8151 1323 2607 360 UniNet S.A. de C.V.
28573 1240 952 80 NET Servicos de Comunicao S.A
6503 1147 355 79 AVANTEL, S.A.
7303 886 461 113 Telecom Argentina Stet-France
14420 603 50 88 CORPORACION NACIONAL DE TELEC
22047 566 310 15 VTR PUNTO NET S.A.
3816 500 218 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 792 445 11 TEDATA
24863 754 147 39 LINKdotNET AS number
36992 636 281 156 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 215 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 194 19 11 Ci Telecom Autonomous system
33776 184 12 14 Starcomms Nigeria Limited
2018 166 277 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 3711 3855 266 bellsouth.net, inc.
4323 2646 1077 403 Time Warner Telecom
4766 1909 9484 521 Korea Telecom (KIX)
19262 1838 4941 286 Verizon Global Networks
1785 1788 697 133 PaeTec Communications, Inc.
7545 1565 300 79 TPG Internet Pty Ltd
20115 1525 1530 641 Charter Communications
6478 1452 288 68 AT&T Worldnet Services
17974 1412 459 28 PT TELEKOMUNIKASI INDONESIA
4755 1396 636 159 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 2646 2243 Time Warner Telecom
1785 1788 1655 PaeTec Communications, Inc.
19262 1838 1552 Verizon Global Networks
7545 1565 1486 TPG Internet Pty Ltd
4766 1909 1388 Korea Telecom (KIX)
6478 1452 1384 AT&T Worldnet Services
17974 1412 1384 PT TELEKOMUNIKASI INDONESIA
4755 1396 1237 TATA Communications formerly
22773 1274 1197 Cox Communications, Inc.
10620 1349 1184 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
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
5.0.0.0/8 237 Merit Network
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
37.0.0.0/8 237 Merit Network
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
41.75.144.0/20 37165 WebRunner Limited
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 /8:25 /9:10 /10:25 /11:70 /12:213
/13:438 /14:759 /15:1351 /16:11480 /17:5603 /18:9287
/19:18749 /20:24149 /21:24499 /22:32342 /23:31269 /24:178702
/25:978 /26:1082 /27:573 /28:156 /29:16 /30:2
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2290 3711 bellsouth.net, inc.
4323 1429 2646 Time Warner Telecom
6478 1408 1452 AT&T Worldnet Services
10620 1240 1349 TVCABLE BOGOTA
11492 1214 1258 Cable One
18566 1098 1117 Covad Communications
7011 1068 1171 Citizens Utilities
1785 1060 1788 PaeTec Communications, Inc.
19262 952 1838 Verizon Global Networks
6503 933 1147 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 2:23 4:13 5:1 8:325 12:2030
13:6 14:362 15:15 16:3 17:8 20:9
23:1 24:1454 27:539 32:61 33:5 34:2
36:1 37:1 38:688 40:101 41:2309 42:1
44:3 46:510 47:5 49:139 50:49 52:12
55:5 56:2 57:29 58:867 59:483 60:389
61:1121 62:1047 63:1931 64:3742 65:2343 66:4088
67:1753 68:1001 69:2857 70:717 71:390 72:1958
73:1 74:2296 75:291 76:327 77:852 78:697
79:437 80:1038 81:814 82:531 83:457 84:638
85:1039 86:524 87:727 88:348 89:1557 90:153
91:3401 92:486 93:1027 94:1153 95:751 96:412
97:248 98:751 99:33 101:21 107:3 108:77
109:846 110:467 111:698 112:310 113:365 114:491
115:625 116:882 117:675 118:632 119:1027 120:239
121:707 122:1596 123:1037 124:1255 125:1209 128:247
129:157 130:171 131:569 132:112 133:20 134:217
135:50 136:216 137:146 138:290 139:129 140:483
141:198 142:360 143:375 144:488 145:51 146:425
147:194 148:626 149:303 150:152 151:230 152:302
153:175 154:3 155:345 156:173 157:340 158:126
159:376 160:313 161:193 162:278 163:161 164:460
165:334 166:473 167:421 168:741 169:151 170:745
171:68 172:2 173:1215 174:505 175:306 176:1
177:3 178:737 180:752 182:389 183:252 184:203
186:920 187:764 188:883 189:1016 190:4322 192:5774
193:4795 194:3496 195:2925 196:1245 197:1 198:3548
199:3723 200:5595 201:1573 202:8264 203:8435 204:4064
205:2335 206:2519 207:2973 208:3853 209:3472 210:2625
211:1333 212:1864 213:1720 214:744 215:62 216:4809
217:1626 218:527 219:383 220:1197 221:444 222:318
223:88
End of report
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