Routing Table Report 04:00 +10GMT Fri 04 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 344225
Prefixes after maximum aggregation: 155296
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 169850
Total ASes present in the Internet Routing Table: 35774
Prefixes per ASN: 9.62
Origin-only ASes present in the Internet Routing Table: 30835
Origin ASes announcing only one prefix: 14953
Transit ASes present in the Internet Routing Table: 4939
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: 399
Unregistered ASNs in the Routing Table: 132
Number of 32-bit ASNs allocated by the RIRs: 1073
Prefixes from 32-bit ASNs in the Routing Table: 1
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 203
Number of addresses announced to Internet: 2380450368
Equivalent to 141 /8s, 226 /16s and 202 /24s
Percentage of available address space announced: 64.2
Percentage of allocated address space announced: 65.7
Percentage of available address space allocated: 97.7
Percentage of address space in use by end-sites: 88.1
Total number of prefixes smaller than registry allocations: 142047
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85153
Total APNIC prefixes after maximum aggregation: 28885
APNIC Deaggregation factor: 2.95
Prefixes being announced from the APNIC address blocks: 81838
Unique aggregates announced from the APNIC address blocks: 35519
APNIC Region origin ASes present in the Internet Routing Table: 4312
APNIC Prefixes per ASN: 18.98
APNIC Region origin ASes announcing only one prefix: 1209
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: 20
Number of APNIC addresses announced to Internet: 586870560
Equivalent to 34 /8s, 250 /16s and 239 /24s
Percentage of available APNIC address space announced: 76.0
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, 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: 138420
Total ARIN prefixes after maximum aggregation: 70965
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 109255
Unique aggregates announced from the ARIN address blocks: 44543
ARIN Region origin ASes present in the Internet Routing Table: 14166
ARIN Prefixes per ASN: 7.71
ARIN Region origin ASes announcing only one prefix: 5410
ARIN Region transit ASes present in the Internet Routing Table: 1470
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 751778432
Equivalent to 44 /8s, 207 /16s and 58 /24s
Percentage of available ARIN address space announced: 63.1
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: 81488
Total RIPE prefixes after maximum aggregation: 46252
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 74787
Unique aggregates announced from the RIPE address blocks: 48573
RIPE Region origin ASes present in the Internet Routing Table: 15260
RIPE Prefixes per ASN: 4.90
RIPE Region origin ASes announcing only one prefix: 7773
RIPE Region transit ASes present in the Internet Routing Table: 2371
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 457663552
Equivalent to 27 /8s, 71 /16s and 100 /24s
Percentage of available RIPE address space announced: 75.8
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: 31544
Total LACNIC prefixes after maximum aggregation: 7244
LACNIC Deaggregation factor: 4.35
Prefixes being announced from the LACNIC address blocks: 30308
Unique aggregates announced from the LACNIC address blocks: 15841
LACNIC Region origin ASes present in the Internet Routing Table: 1423
LACNIC Prefixes per ASN: 21.30
LACNIC Region origin ASes announcing only one prefix: 431
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: 80405632
Equivalent to 4 /8s, 202 /16s and 228 /24s
Percentage of available LACNIC address space announced: 59.9
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: 7400
Total AfriNIC prefixes after maximum aggregation: 1838
AfriNIC Deaggregation factor: 4.03
Prefixes being announced from the AfriNIC address blocks: 5822
Unique aggregates announced from the AfriNIC address blocks: 1700
AfriNIC Region origin ASes present in the Internet Routing Table: 432
AfriNIC Prefixes per ASN: 13.48
AfriNIC Region origin ASes announcing only one prefix: 129
AfriNIC Region transit ASes present in the Internet Routing Table: 96
Average AfriNIC Region AS path length visible: 5.3
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21799424
Equivalent to 1 /8s, 76 /16s and 162 /24s
Percentage of available AfriNIC address space announced: 43.3
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 1914 9485 525 Korea Telecom (KIX)
7545 1615 301 85 TPG Internet Pty Ltd
4755 1409 637 161 TATA Communications formerly
17974 1380 467 27 PT TELEKOMUNIKASI INDONESIA
24560 1096 318 181 Bharti Airtel Ltd., Telemedia
9583 1043 76 490 Sify Limited
4808 1034 2130 292 CNCGROUP IP network: China169
17488 952 162 104 Hathway IP Over Cable Interne
18101 927 117 144 Reliance Infocom Ltd Internet
9829 887 757 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 3699 3855 265 bellsouth.net, inc.
4323 2632 1109 403 Time Warner Telecom
19262 1842 4951 283 Verizon Global Networks
1785 1787 697 132 PaeTec Communications, Inc.
20115 1521 1530 641 Charter Communications
6478 1476 291 102 AT&T Worldnet Services
7018 1354 6674 871 AT&T WorldNet Services
2386 1295 553 933 AT&T Data Communications Serv
22773 1278 2865 78 Cox Communications, Inc.
11492 1264 235 77 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 515 1764 319 UPC Distribution Services
9198 464 266 14 Kazakhtelecom Data Network Ad
34984 458 97 137 BILISIM TELEKOM
3292 447 2011 390 TDC Tele Danmark
8866 439 133 23 Bulgarian Telecommunication C
3320 403 7619 352 Deutsche Telekom AG
8551 403 353 46 Bezeq International
702 397 1817 310 UUNET - Commercial IP service
20940 394 91 303 Akamai Technologies European
3301 382 1822 340 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 1358 252 163 TVCABLE BOGOTA
8151 1335 2647 359 UniNet S.A. de C.V.
28573 1242 959 82 NET Servicos de Comunicao S.A
6503 1150 355 78 AVANTEL, S.A.
7303 888 461 114 Telecom Argentina Stet-France
14420 621 55 92 CORPORACION NACIONAL DE TELEC
22047 568 310 15 VTR PUNTO NET S.A.
3816 525 220 96 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 456 34 31 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 800 445 11 TEDATA
24863 761 147 39 LINKdotNET AS number
36992 635 329 19 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 217 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
16637 146 422 83 MTN Network Solutions
29975 132 490 17 Vodacom
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 3699 3855 265 bellsouth.net, inc.
4323 2632 1109 403 Time Warner Telecom
4766 1914 9485 525 Korea Telecom (KIX)
19262 1842 4951 283 Verizon Global Networks
1785 1787 697 132 PaeTec Communications, Inc.
7545 1615 301 85 TPG Internet Pty Ltd
20115 1521 1530 641 Charter Communications
6478 1476 291 102 AT&T Worldnet Services
4755 1409 637 161 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 2632 2229 Time Warner Telecom
1785 1787 1655 PaeTec Communications, Inc.
19262 1842 1559 Verizon Global Networks
7545 1615 1530 TPG Internet Pty Ltd
4766 1914 1389 Korea Telecom (KIX)
6478 1476 1374 AT&T Worldnet Services
17974 1380 1353 PT TELEKOMUNIKASI INDONESIA
4755 1409 1248 TATA Communications formerly
22773 1278 1200 Cox Communications, Inc.
10620 1358 1195 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
41.78.192.0/22 30999 Emtel is GSM, 3G and ISP in M
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 /9:11 /10:26 /11:72 /12:221
/13:445 /14:773 /15:1372 /16:11556 /17:5633 /18:9293
/19:18812 /20:24265 /21:24687 /22:32775 /23:31451 /24:179968
/25:995 /26:1073 /27:586 /28:165 /29:16 /30:3
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2278 3699 bellsouth.net, inc.
6478 1430 1476 AT&T Worldnet Services
4323 1421 2632 Time Warner Telecom
10620 1249 1358 TVCABLE BOGOTA
11492 1220 1264 Cable One
18566 1160 1182 Covad Communications
7011 1065 1168 Citizens Utilities
1785 1058 1787 PaeTec Communications, Inc.
19262 954 1842 Verizon Global Networks
6503 934 1150 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:169 2:39 4:13 5:1 8:332 12:2026
13:1 14:385 15:15 16:3 17:8 20:9
23:1 24:1466 27:570 32:61 33:5 34:2
37:1 38:695 40:101 41:2313 44:3 46:560
47:5 49:142 50:83 52:12 55:5 56:2
57:31 58:888 59:483 60:391 61:1116 62:1064
63:1918 64:3755 65:2360 66:4118 67:1754 68:1004
69:2875 70:715 71:395 72:1990 73:1 74:2322
75:293 76:329 77:860 78:701 79:441 80:1044
81:794 82:534 83:472 84:647 85:1053 86:530
87:729 88:356 89:1585 90:157 91:3447 92:495
93:1042 94:1186 95:780 96:417 97:249 98:759
99:33 101:23 107:3 108:82 109:857 110:471
111:695 112:312 113:354 114:491 115:641 116:908
117:674 118:657 119:1015 120:241 121:700 122:1612
123:1053 124:1268 125:1214 128:262 129:152 130:171
131:568 132:110 133:20 134:216 135:49 136:216
137:147 138:290 139:120 140:490 141:198 142:362
143:377 144:485 145:51 146:425 147:195 148:625
149:273 150:151 151:230 152:306 153:177 154:3
155:347 156:170 157:341 158:128 159:382 160:315
161:205 162:278 163:159 164:486 165:338 166:481
167:420 168:740 169:152 170:750 171:66 172:2
173:1268 174:521 175:314 176:1 177:12 178:781
180:777 182:338 183:249 184:208 186:983 187:792
188:912 189:1026 190:4375 192:5785 193:4800 194:3504
195:2938 196:1177 197:3 198:3577 199:3749 200:5583
201:1582 202:8261 203:8409 204:4101 205:2344 206:2599
207:3054 208:3885 209:3499 210:2639 211:1330 212:1871
213:1692 214:752 215:62 216:4800 217:1613 218:528
219:372 220:1199 221:449 222:319 223:94
End of report
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