Routing Table Report 04:00 +10GMT Fri 25 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 348201
Prefixes after maximum aggregation: 157060
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 171757
Total ASes present in the Internet Routing Table: 35948
Prefixes per ASN: 9.69
Origin-only ASes present in the Internet Routing Table: 30985
Origin ASes announcing only one prefix: 14952
Transit ASes present in the Internet Routing Table: 4963
Transit-only ASes present in the Internet Routing Table: 121
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: 342
Unregistered ASNs in the Routing Table: 142
Number of 32-bit ASNs allocated by the RIRs: 1141
Prefixes from 32-bit ASNs in the Routing Table: 2
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 203
Number of addresses announced to Internet: 2365933536
Equivalent to 141 /8s, 5 /16s and 71 /24s
Percentage of available address space announced: 63.8
Percentage of allocated address space announced: 63.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.1
Total number of prefixes smaller than registry allocations: 144311
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86576
Total APNIC prefixes after maximum aggregation: 29513
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 83381
Unique aggregates announced from the APNIC address blocks: 35951
APNIC Region origin ASes present in the Internet Routing Table: 4337
APNIC Prefixes per ASN: 19.23
APNIC Region origin ASes announcing only one prefix: 1202
APNIC Region transit ASes present in the Internet Routing Table: 690
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 592260128
Equivalent to 35 /8s, 77 /16s and 44 /24s
Percentage of available APNIC address space announced: 75.1
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, 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: 139901
Total ARIN prefixes after maximum aggregation: 71561
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 110589
Unique aggregates announced from the ARIN address blocks: 45026
ARIN Region origin ASes present in the Internet Routing Table: 14215
ARIN Prefixes per ASN: 7.78
ARIN Region origin ASes announcing only one prefix: 5400
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: 787462016
Equivalent to 46 /8s, 239 /16s and 183 /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, 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: 82334
Total RIPE prefixes after maximum aggregation: 46709
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 75627
Unique aggregates announced from the RIPE address blocks: 49275
RIPE Region origin ASes present in the Internet Routing Table: 15346
RIPE Prefixes per ASN: 4.93
RIPE Region origin ASes announcing only one prefix: 7782
RIPE Region transit ASes present in the Internet Routing Table: 2388
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 460694848
Equivalent to 27 /8s, 117 /16s and 165 /24s
Percentage of available RIPE address space announced: 74.2
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: 31749
Total LACNIC prefixes after maximum aggregation: 7371
LACNIC Deaggregation factor: 4.31
Prefixes being announced from the LACNIC address blocks: 30538
Unique aggregates announced from the LACNIC address blocks: 15854
LACNIC Region origin ASes present in the Internet Routing Table: 1436
LACNIC Prefixes per ASN: 21.27
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 262
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 80922496
Equivalent to 4 /8s, 210 /16s and 199 /24s
Percentage of available LACNIC address space announced: 53.6
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: 7424
Total AfriNIC prefixes after maximum aggregation: 1792
AfriNIC Deaggregation factor: 4.14
Prefixes being announced from the AfriNIC address blocks: 5849
Unique aggregates announced from the AfriNIC address blocks: 1829
AfriNIC Region origin ASes present in the Internet Routing Table: 433
AfriNIC Prefixes per ASN: 13.51
AfriNIC Region origin ASes announcing only one prefix: 132
AfriNIC Region transit ASes present in the Internet Routing Table: 92
Average AfriNIC Region AS path length visible: 5.5
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21857280
Equivalent to 1 /8s, 77 /16s and 132 /24s
Percentage of available AfriNIC address space announced: 32.6
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 2381 9499 869 Korea Telecom (KIX)
7545 1616 302 87 TPG Internet Pty Ltd
4755 1418 634 164 TATA Communications formerly
17974 1412 475 29 PT TELEKOMUNIKASI INDONESIA
24560 1115 323 184 Bharti Airtel Ltd., Telemedia
4808 1046 2142 294 CNCGROUP IP network: China169
9583 1045 77 488 Sify Limited
17488 944 161 102 Hathway IP Over Cable Interne
18101 932 117 139 Reliance Infocom Ltd Internet
9829 895 761 45 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 3691 3855 261 bellsouth.net, inc.
4323 2610 1109 405 Time Warner Telecom
19262 1789 4955 283 Verizon Global Networks
1785 1785 697 130 PaeTec Communications, Inc.
20115 1528 1535 647 Charter Communications
6478 1525 296 68 AT&T Worldnet Services
18566 1447 321 156 Covad Communications
7018 1366 6690 879 AT&T WorldNet Services
2386 1298 553 934 AT&T Data Communications Serv
11492 1281 236 74 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 514 1780 319 UPC Distribution Services
9198 470 267 15 Kazakhtelecom Data Network Ad
34984 464 98 144 BILISIM TELEKOM
3292 447 1996 388 TDC Tele Danmark
8866 440 133 23 Bulgarian Telecommunication C
3320 410 7620 357 Deutsche Telekom AG
20940 408 96 315 Akamai Technologies European
8551 403 353 46 Bezeq International
702 394 1800 308 UUNET - Commercial IP service
3301 383 1822 341 TeliaNet Sweden
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 1382 257 165 TVCABLE BOGOTA
8151 1350 2684 361 UniNet S.A. de C.V.
28573 1223 961 82 NET Servicos de Comunicao S.A
6503 1167 354 73 AVANTEL, S.A.
7303 907 464 145 Telecom Argentina Stet-France
14420 641 57 94 CORPORACION NACIONAL DE TELEC
22047 547 310 15 VTR PUNTO NET S.A.
3816 508 221 101 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
13489 462 209 121 Orbitel S.A. E.S.P.
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 770 445 11 TEDATA
24863 692 147 39 LINKdotNET AS number
15475 473 90 12 Nile Online
36992 300 271 14 Etisalat MISR
3741 264 987 226 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 218 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 134 416 81 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 3691 3855 261 bellsouth.net, inc.
4323 2610 1109 405 Time Warner Telecom
4766 2381 9499 869 Korea Telecom (KIX)
19262 1789 4955 283 Verizon Global Networks
1785 1785 697 130 PaeTec Communications, Inc.
7545 1616 302 87 TPG Internet Pty Ltd
20115 1528 1535 647 Charter Communications
6478 1525 296 68 AT&T Worldnet Services
18566 1447 321 156 Covad Communications
4755 1418 634 164 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 2610 2205 Time Warner Telecom
1785 1785 1655 PaeTec Communications, Inc.
7545 1616 1529 TPG Internet Pty Ltd
4766 2381 1512 Korea Telecom (KIX)
19262 1789 1506 Verizon Global Networks
6478 1525 1457 AT&T Worldnet Services
17974 1412 1383 PT TELEKOMUNIKASI INDONESIA
18566 1447 1291 Covad Communications
4755 1418 1254 TATA Communications formerly
10620 1382 1217 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
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Continental Cablevision
31.24.144.0/21 49855 PLUTEX GmbH
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<<
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 /11:72 /12:215
/13:444 /14:765 /15:1371 /16:11532 /17:5665 /18:9345
/19:18895 /20:24439 /21:24959 /22:33327 /23:31751 /24:181979
/25:1127 /26:1357 /27:707 /28:169 /29:16 /30:3
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2278 3691 bellsouth.net, inc.
6478 1479 1525 AT&T Worldnet Services
18566 1425 1447 Covad Communications
4323 1407 2610 Time Warner Telecom
10620 1273 1382 TVCABLE BOGOTA
11492 1238 1281 Cable One
7011 1056 1158 Citizens Utilities
1785 1053 1785 PaeTec Communications, Inc.
6503 950 1167 AVANTEL, S.A.
19262 900 1789 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:243 2:47 4:13 5:1 8:335 12:2030
13:1 14:413 15:15 16:3 17:8 20:9
23:1 24:1491 27:602 32:60 33:4 34:2
37:1 38:707 40:101 41:2298 44:3 46:655
47:4 49:151 50:95 52:12 55:2 56:2
57:31 58:862 59:475 60:383 61:1108 62:1043
63:1941 64:3858 65:2362 66:4249 67:1784 68:1030
69:2923 70:737 71:399 72:2014 73:1 74:2350
75:291 76:345 77:854 78:699 79:447 80:1062
81:811 82:522 83:470 84:632 85:1046 86:576
87:742 88:355 89:1578 90:157 91:3538 92:494
93:1048 94:1205 95:771 96:454 97:252 98:781
99:33 101:31 107:3 108:88 109:930 110:484
111:721 112:313 113:369 114:500 115:654 116:946
117:683 118:686 119:1022 120:244 121:696 122:1625
123:1052 124:1290 125:1256 128:266 129:156 130:170
131:569 132:108 133:20 134:220 135:49 136:215
137:147 138:294 139:119 140:492 141:203 142:355
143:390 144:487 145:51 146:439 147:201 148:636
149:274 150:169 151:229 152:298 153:179 154:3
155:372 156:176 157:342 158:130 159:380 160:315
161:207 162:276 163:156 164:484 165:338 166:503
167:411 168:737 169:150 170:756 171:69 172:2
173:1317 174:515 175:320 176:1 177:13 178:762
180:814 181:2 182:361 183:248 184:214 186:1013
187:813 188:897 189:1047 190:4409 192:5809 193:4801
194:3497 195:2953 196:1191 197:3 198:3574 199:3841
200:5561 201:1578 202:8290 203:8444 204:4089 205:2320
206:2644 207:3076 208:3918 209:3489 210:2643 211:1346
212:1931 213:1738 214:777 215:63 216:4863 217:1645
218:546 219:376 220:1201 221:452 222:314 223:102
End of report
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