Routing Table Report 04:00 +10GMT Sun 20 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 347180
Prefixes after maximum aggregation: 156655
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 171447
Total ASes present in the Internet Routing Table: 35886
Prefixes per ASN: 9.67
Origin-only ASes present in the Internet Routing Table: 30920
Origin ASes announcing only one prefix: 14963
Transit ASes present in the Internet Routing Table: 4966
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: 337
Unregistered ASNs in the Routing Table: 137
Number of 32-bit ASNs allocated by the RIRs: 1133
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: 2396196672
Equivalent to 142 /8s, 211 /16s and 15 /24s
Percentage of available address space announced: 64.6
Percentage of allocated address space announced: 64.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.0
Total number of prefixes smaller than registry allocations: 143852
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86057
Total APNIC prefixes after maximum aggregation: 29321
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 82861
Unique aggregates announced from the APNIC address blocks: 35882
APNIC Region origin ASes present in the Internet Routing Table: 4329
APNIC Prefixes per ASN: 19.14
APNIC Region origin ASes announcing only one prefix: 1206
APNIC Region transit ASes present in the Internet Routing Table: 689
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 590007328
Equivalent to 35 /8s, 42 /16s and 204 /24s
Percentage of available APNIC address space announced: 74.8
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: 139771
Total ARIN prefixes after maximum aggregation: 71467
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 110581
Unique aggregates announced from the ARIN address blocks: 44954
ARIN Region origin ASes present in the Internet Routing Table: 14190
ARIN Prefixes per ASN: 7.79
ARIN Region origin ASes announcing only one prefix: 5399
ARIN Region transit ASes present in the Internet Routing Table: 1471
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 27
Number of ARIN addresses announced to Internet: 787329664
Equivalent to 46 /8s, 237 /16s and 178 /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: 82063
Total RIPE prefixes after maximum aggregation: 46599
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 75422
Unique aggregates announced from the RIPE address blocks: 49064
RIPE Region origin ASes present in the Internet Routing Table: 15323
RIPE Prefixes per ASN: 4.92
RIPE Region origin ASes announcing only one prefix: 7791
RIPE Region transit ASes present in the Internet Routing Table: 2391
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 460245056
Equivalent to 27 /8s, 110 /16s and 200 /24s
Percentage of available RIPE address space announced: 74.1
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: 31670
Total LACNIC prefixes after maximum aggregation: 7344
LACNIC Deaggregation factor: 4.31
Prefixes being announced from the LACNIC address blocks: 30441
Unique aggregates announced from the LACNIC address blocks: 15920
LACNIC Region origin ASes present in the Internet Routing Table: 1427
LACNIC Prefixes per ASN: 21.33
LACNIC Region origin ASes announcing only one prefix: 434
LACNIC Region transit ASes present in the Internet Routing Table: 259
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 80820608
Equivalent to 4 /8s, 209 /16s and 57 /24s
Percentage of available LACNIC address space announced: 53.5
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: 7402
Total AfriNIC prefixes after maximum aggregation: 1810
AfriNIC Deaggregation factor: 4.09
Prefixes being announced from the AfriNIC address blocks: 5808
Unique aggregates announced from the AfriNIC address blocks: 1831
AfriNIC Region origin ASes present in the Internet Routing Table: 436
AfriNIC Prefixes per ASN: 13.32
AfriNIC Region origin ASes announcing only one prefix: 133
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 5.4
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21854208
Equivalent to 1 /8s, 77 /16s and 120 /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 2307 9497 819 Korea Telecom (KIX)
7545 1627 302 86 TPG Internet Pty Ltd
4755 1417 634 163 TATA Communications formerly
17974 1404 475 29 PT TELEKOMUNIKASI INDONESIA
24560 1113 323 182 Bharti Airtel Ltd., Telemedia
9583 1044 77 488 Sify Limited
4808 1042 2142 294 CNCGROUP IP network: China169
17488 950 162 103 Hathway IP Over Cable Interne
18101 930 117 141 Reliance Infocom Ltd Internet
9829 887 759 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 3694 3855 261 bellsouth.net, inc.
4323 2624 1109 405 Time Warner Telecom
19262 1843 4955 283 Verizon Global Networks
1785 1784 697 131 PaeTec Communications, Inc.
20115 1527 1534 646 Charter Communications
6478 1518 296 79 AT&T Worldnet Services
18566 1435 320 156 Covad Communications
7018 1368 6674 881 AT&T WorldNet Services
2386 1298 553 935 AT&T Data Communications Serv
11492 1280 236 73 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 513 1764 318 UPC Distribution Services
9198 468 267 15 Kazakhtelecom Data Network Ad
34984 463 98 143 BILISIM TELEKOM
3292 447 1996 388 TDC Tele Danmark
8866 440 133 23 Bulgarian Telecommunication C
3320 410 7620 357 Deutsche Telekom AG
20940 410 97 316 Akamai Technologies European
8551 403 353 46 Bezeq International
702 396 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 1374 255 166 TVCABLE BOGOTA
8151 1341 2681 359 UniNet S.A. de C.V.
28573 1232 961 82 NET Servicos de Comunicao S.A
6503 1166 354 73 AVANTEL, S.A.
7303 901 463 143 Telecom Argentina Stet-France
14420 638 57 92 CORPORACION NACIONAL DE TELEC
3816 558 223 103 Empresa Nacional de Telecomun
22047 545 310 15 VTR PUNTO NET S.A.
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 461 34 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
24863 763 147 39 LINKdotNET AS number
8452 731 445 11 TEDATA
15475 495 90 12 Nile Online
36992 301 271 14 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 219 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
33776 172 12 20 Starcomms Nigeria Limited
16637 141 422 85 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 3694 3855 261 bellsouth.net, inc.
4323 2624 1109 405 Time Warner Telecom
4766 2307 9497 819 Korea Telecom (KIX)
19262 1843 4955 283 Verizon Global Networks
1785 1784 697 131 PaeTec Communications, Inc.
7545 1627 302 86 TPG Internet Pty Ltd
20115 1527 1534 646 Charter Communications
6478 1518 296 79 AT&T Worldnet Services
18566 1435 320 156 Covad Communications
4755 1417 634 163 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 2624 2219 Time Warner Telecom
1785 1784 1653 PaeTec Communications, Inc.
19262 1843 1560 Verizon Global Networks
7545 1627 1541 TPG Internet Pty Ltd
4766 2307 1488 Korea Telecom (KIX)
6478 1518 1439 AT&T Worldnet Services
17974 1404 1375 PT TELEKOMUNIKASI INDONESIA
18566 1435 1279 Covad Communications
4755 1417 1254 TATA Communications formerly
10620 1374 1208 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
39.0.0.0/8 237 Merit Network
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 /8:21 /9:10 /10:26 /11:72 /12:215
/13:445 /14:764 /15:1368 /16:11503 /17:5665 /18:9329
/19:18867 /20:24397 /21:24874 /22:32952 /23:31733 /24:181670
/25:1105 /26:1286 /27:684 /28:167 /29:16 /30:3
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2281 3694 bellsouth.net, inc.
6478 1472 1518 AT&T Worldnet Services
4323 1414 2624 Time Warner Telecom
18566 1413 1435 Covad Communications
10620 1265 1374 TVCABLE BOGOTA
11492 1237 1280 Cable One
7011 1057 1160 Citizens Utilities
1785 1054 1784 PaeTec Communications, Inc.
19262 954 1843 Verizon Global Networks
6503 950 1166 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:198 2:43 4:13 5:1 8:335 12:2031
13:1 14:409 15:15 16:3 17:8 20:9
23:1 24:1489 27:587 32:60 33:4 34:2
37:1 38:705 40:101 41:2209 44:3 46:617
47:4 49:149 50:93 52:12 55:2 56:2
57:31 58:864 59:475 60:391 61:1107 62:1052
63:1938 64:3835 65:2351 66:4237 67:1783 68:1028
69:2929 70:735 71:403 72:2020 73:1 74:2346
75:292 76:346 77:874 78:710 79:446 80:1059
81:820 82:523 83:475 84:635 85:1047 86:559
87:750 88:355 89:1573 90:157 91:3513 92:492
93:1038 94:1209 95:767 96:453 97:251 98:826
99:33 101:24 107:3 108:88 109:930 110:481
111:704 112:312 113:368 114:493 115:656 116:930
117:681 118:676 119:1022 120:242 121:698 122:1625
123:1052 124:1287 125:1257 128:265 129:156 130:170
131:566 132:109 133:20 134:220 135:49 136:215
137:146 138:292 139:119 140:492 141:203 142:359
143:380 144:487 145:51 146:436 147:202 148:636
149:265 150:161 151:229 152:298 153:180 154:3
155:350 156:176 157:341 158:129 159:380 160:314
161:209 162:274 163:161 164:486 165:337 166:502
167:422 168:733 169:150 170:754 171:69 172:11
173:1323 174:531 175:318 176:1 177:13 178:752
180:815 182:362 183:247 184:213 186:1009 187:809
188:895 189:1067 190:4393 192:5797 193:4802 194:3511
195:2951 196:1189 197:3 198:3564 199:3816 200:5592
201:1582 202:8277 203:8460 204:4095 205:2330 206:2619
207:3084 208:3898 209:3497 210:2641 211:1340 212:1930
213:1736 214:764 215:62 216:4895 217:1631 218:540
219:379 220:1201 221:452 222:312 223:100
End of report
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