Routing Table Report 04:00 +10GMT Tue 01 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 348501
Prefixes after maximum aggregation: 157318
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 172326
Total ASes present in the Internet Routing Table: 35955
Prefixes per ASN: 9.69
Origin-only ASes present in the Internet Routing Table: 30990
Origin ASes announcing only one prefix: 14945
Transit ASes present in the Internet Routing Table: 4965
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: 349
Unregistered ASNs in the Routing Table: 147
Number of 32-bit ASNs allocated by the RIRs: 1155
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: 198
Number of addresses announced to Internet: 2366479328
Equivalent to 141 /8s, 13 /16s and 155 /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: 88.3
Total number of prefixes smaller than registry allocations: 144496
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86630
Total APNIC prefixes after maximum aggregation: 29628
APNIC Deaggregation factor: 2.92
Prefixes being announced from the APNIC address blocks: 83433
Unique aggregates announced from the APNIC address blocks: 36204
APNIC Region origin ASes present in the Internet Routing Table: 4342
APNIC Prefixes per ASN: 19.22
APNIC Region origin ASes announcing only one prefix: 1205
APNIC Region transit ASes present in the Internet Routing Table: 687
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 592189984
Equivalent to 35 /8s, 76 /16s and 26 /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: 139703
Total ARIN prefixes after maximum aggregation: 71597
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 110368
Unique aggregates announced from the ARIN address blocks: 45111
ARIN Region origin ASes present in the Internet Routing Table: 14211
ARIN Prefixes per ASN: 7.77
ARIN Region origin ASes announcing only one prefix: 5392
ARIN Region transit ASes present in the Internet Routing Table: 1475
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 787454848
Equivalent to 46 /8s, 239 /16s and 155 /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: 82380
Total RIPE prefixes after maximum aggregation: 46781
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 75672
Unique aggregates announced from the RIPE address blocks: 49305
RIPE Region origin ASes present in the Internet Routing Table: 15349
RIPE Prefixes per ASN: 4.93
RIPE Region origin ASes announcing only one prefix: 7784
RIPE Region transit ASes present in the Internet Routing Table: 2386
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 461071680
Equivalent to 27 /8s, 123 /16s and 101 /24s
Percentage of available RIPE address space announced: 74.3
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: 31992
Total LACNIC prefixes after maximum aggregation: 7381
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 30812
Unique aggregates announced from the LACNIC address blocks: 16057
LACNIC Region origin ASes present in the Internet Routing Table: 1436
LACNIC Prefixes per ASN: 21.46
LACNIC Region origin ASes announcing only one prefix: 432
LACNIC Region transit ASes present in the Internet Routing Table: 263
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 81023616
Equivalent to 4 /8s, 212 /16s and 82 /24s
Percentage of available LACNIC address space announced: 53.7
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: 7581
Total AfriNIC prefixes after maximum aggregation: 1822
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 5982
Unique aggregates announced from the AfriNIC address blocks: 1845
AfriNIC Region origin ASes present in the Internet Routing Table: 437
AfriNIC Prefixes per ASN: 13.69
AfriNIC Region origin ASes announcing only one prefix: 132
AfriNIC Region transit ASes present in the Internet Routing Table: 94
Average AfriNIC Region AS path length visible: 5.4
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21898496
Equivalent to 1 /8s, 78 /16s and 37 /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 2385 9500 859 Korea Telecom (KIX)
7545 1603 257 143 TPG Internet Pty Ltd
4755 1410 634 164 TATA Communications formerly
17974 1387 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 940 161 102 Hathway IP Over Cable Interne
18101 930 117 139 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 3688 3855 261 bellsouth.net, inc.
4323 2602 1109 403 Time Warner Telecom
19262 1787 4954 285 Verizon Global Networks
1785 1786 697 131 PaeTec Communications, Inc.
20115 1527 1535 647 Charter Communications
6478 1517 296 112 AT&T Worldnet Services
18566 1447 321 156 Covad Communications
7018 1361 6705 882 AT&T WorldNet Services
2386 1295 537 938 AT&T Data Communications Serv
11492 1285 236 70 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 465 98 145 BILISIM TELEKOM
3292 447 1996 388 TDC Tele Danmark
8866 442 133 23 Bulgarian Telecommunication C
20940 412 98 316 Akamai Technologies European
3320 406 7604 354 Deutsche Telekom AG
8551 403 353 46 Bezeq International
702 395 1800 309 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 1383 257 166 TVCABLE BOGOTA
8151 1346 2686 362 UniNet S.A. de C.V.
28573 1232 961 82 NET Servicos de Comunicao S.A
6503 1172 354 73 AVANTEL, S.A.
7303 906 463 144 Telecom Argentina Stet-France
14420 641 57 94 CORPORACION NACIONAL DE TELEC
22047 543 310 15 VTR PUNTO NET S.A.
3816 507 221 100 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
11172 463 83 82 Servicios Alestra S.A de C.V
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 798 445 11 TEDATA
24863 775 147 39 LINKdotNET AS number
15475 473 90 12 Nile Online
36992 300 271 14 Etisalat MISR
3741 265 987 227 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 155 439 89 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 3688 3855 261 bellsouth.net, inc.
4323 2602 1109 403 Time Warner Telecom
4766 2385 9500 859 Korea Telecom (KIX)
19262 1787 4954 285 Verizon Global Networks
1785 1786 697 131 PaeTec Communications, Inc.
7545 1603 257 143 TPG Internet Pty Ltd
20115 1527 1535 647 Charter Communications
6478 1517 296 112 AT&T Worldnet Services
18566 1447 321 156 Covad Communications
4755 1410 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 2602 2199 Time Warner Telecom
1785 1786 1655 PaeTec Communications, Inc.
4766 2385 1526 Korea Telecom (KIX)
19262 1787 1502 Verizon Global Networks
7545 1603 1460 TPG Internet Pty Ltd
6478 1517 1405 AT&T Worldnet Services
17974 1387 1358 PT TELEKOMUNIKASI INDONESIA
18566 1447 1291 Covad Communications
4755 1410 1246 TATA Communications formerly
10620 1383 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
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 /11:72 /12:215
/13:444 /14:764 /15:1368 /16:11535 /17:5665 /18:9348
/19:18900 /20:24441 /21:25025 /22:33346 /23:31802 /24:182105
/25:1150 /26:1370 /27:704 /28:165 /29:16 /30:3
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2275 3688 bellsouth.net, inc.
6478 1471 1517 AT&T Worldnet Services
18566 1425 1447 Covad Communications
4323 1403 2602 Time Warner Telecom
10620 1274 1383 TVCABLE BOGOTA
11492 1242 1285 Cable One
7011 1056 1157 Citizens Utilities
1785 1054 1786 PaeTec Communications, Inc.
6503 954 1172 AVANTEL, S.A.
19262 899 1787 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:259 2:47 4:13 5:1 8:334 12:2029
13:1 14:414 15:15 16:3 17:8 20:9
23:1 24:1495 27:595 31:1 32:60 33:4
34:2 37:1 38:707 40:101 41:2336 44:3
46:645 47:4 49:155 50:96 52:12 55:2
56:2 57:31 58:862 59:476 60:384 61:1107
62:1041 63:1926 64:3849 65:2359 66:4256 67:1783
68:1066 69:2871 70:731 71:399 72:1989 73:1
74:2346 75:292 76:346 77:870 78:695 79:443
80:1070 81:825 82:521 83:463 84:634 85:1045
86:575 87:744 88:355 89:1576 90:158 91:3543
92:493 93:1050 94:1201 95:777 96:455 97:250
98:787 99:33 101:35 107:4 108:119 109:929
110:476 111:712 112:315 113:386 114:503 115:651
116:948 117:682 118:685 119:1036 120:244 121:696
122:1619 123:1054 124:1289 125:1254 128:266 129:156
130:173 131:560 132:108 133:20 134:219 135:49
136:215 137:146 138:294 139:117 140:489 141:203
142:356 143:386 144:487 145:51 146:438 147:203
148:632 149:273 150:169 151:229 152:297 153:180
154:3 155:377 156:176 157:344 158:128 159:382
160:314 161:208 162:279 163:156 164:485 165:343
166:502 167:409 168:739 169:157 170:756 171:69
172:2 173:1224 174:501 175:320 176:1 177:25
178:772 180:813 181:2 182:370 183:242 184:215
186:1026 187:829 188:897 189:1050 190:4556 192:5770
193:4799 194:3509 195:2966 196:1199 197:4 198:3586
199:3839 200:5603 201:1579 202:8257 203:8450 204:4087
205:2297 206:2647 207:3071 208:3926 209:3475 210:2642
211:1347 212:1934 213:1737 214:767 215:63 216:4856
217:1644 218:547 219:374 220:1203 221:452 222:313
223:104
End of report
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