Routing Table Report 04:00 +10GMT Sun 06 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 349394
Prefixes after maximum aggregation: 157524
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 172342
Total ASes present in the Internet Routing Table: 36005
Prefixes per ASN: 9.70
Origin-only ASes present in the Internet Routing Table: 31023
Origin ASes announcing only one prefix: 14944
Transit ASes present in the Internet Routing Table: 4982
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: 31
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 377
Unregistered ASNs in the Routing Table: 173
Number of 32-bit ASNs allocated by the RIRs: 1173
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: 259
Number of addresses announced to Internet: 2455837344
Equivalent to 146 /8s, 97 /16s and 26 /24s
Percentage of available address space announced: 66.3
Percentage of allocated address space announced: 66.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 89.1
Total number of prefixes smaller than registry allocations: 144923
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86941
Total APNIC prefixes after maximum aggregation: 29694
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 83728
Unique aggregates announced from the APNIC address blocks: 36149
APNIC Region origin ASes present in the Internet Routing Table: 4344
APNIC Prefixes per ASN: 19.27
APNIC Region origin ASes announcing only one prefix: 1199
APNIC Region transit ASes present in the Internet Routing Table: 690
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 594744096
Equivalent to 35 /8s, 115 /16s and 19 /24s
Percentage of available APNIC address space announced: 75.4
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: 140201
Total ARIN prefixes after maximum aggregation: 71632
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 110813
Unique aggregates announced from the ARIN address blocks: 44959
ARIN Region origin ASes present in the Internet Routing Table: 14230
ARIN Prefixes per ASN: 7.79
ARIN Region origin ASes announcing only one prefix: 5417
ARIN Region transit ASes present in the Internet Routing Table: 1479
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 787565952
Equivalent to 46 /8s, 241 /16s and 77 /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: 82521
Total RIPE prefixes after maximum aggregation: 46902
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 75806
Unique aggregates announced from the RIPE address blocks: 49312
RIPE Region origin ASes present in the Internet Routing Table: 15383
RIPE Prefixes per ASN: 4.93
RIPE Region origin ASes announcing only one prefix: 7773
RIPE Region transit ASes present in the Internet Routing Table: 2396
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 478722048
Equivalent to 28 /8s, 136 /16s and 184 /24s
Percentage of available RIPE address space announced: 77.1
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: 32005
Total LACNIC prefixes after maximum aggregation: 7371
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 30856
Unique aggregates announced from the LACNIC address blocks: 16112
LACNIC Region origin ASes present in the Internet Routing Table: 1433
LACNIC Prefixes per ASN: 21.53
LACNIC Region origin ASes announcing only one prefix: 428
LACNIC Region transit ASes present in the Internet Routing Table: 264
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 81369984
Equivalent to 4 /8s, 217 /16s and 155 /24s
Percentage of available LACNIC address space announced: 53.9
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: 7510
Total AfriNIC prefixes after maximum aggregation: 1818
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 5911
Unique aggregates announced from the AfriNIC address blocks: 1964
AfriNIC Region origin ASes present in the Internet Routing Table: 434
AfriNIC Prefixes per ASN: 13.62
AfriNIC Region origin ASes announcing only one prefix: 127
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: 21865728
Equivalent to 1 /8s, 77 /16s and 165 /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 2419 9501 891 Korea Telecom (KIX)
7545 1601 301 82 TPG Internet Pty Ltd
4755 1421 638 165 TATA Communications formerly
17974 1400 475 29 PT TELEKOMUNIKASI INDONESIA
24560 1121 324 186 Bharti Airtel Ltd., Telemedia
4808 1046 2142 294 CNCGROUP IP network: China169
9583 1045 77 488 Sify Limited
17488 941 161 102 Hathway IP Over Cable Interne
18101 937 117 144 Reliance Infocom Ltd Internet
9829 898 764 46 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 3683 3855 260 bellsouth.net, inc.
4323 2582 1109 403 Time Warner Telecom
19262 1829 4953 282 Verizon Global Networks
1785 1790 697 131 PaeTec Communications, Inc.
6478 1533 298 89 AT&T Worldnet Services
20115 1527 1534 650 Charter Communications
18566 1522 326 178 Covad Communications
7018 1365 6706 886 AT&T WorldNet Services
2386 1299 538 939 AT&T Data Communications Serv
11492 1288 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 513 1780 318 UPC Distribution Services
9198 470 267 15 Kazakhtelecom Data Network Ad
34984 466 98 146 BILISIM TELEKOM
3292 448 1996 389 TDC Tele Danmark
8866 442 133 23 Bulgarian Telecommunication C
20940 415 99 319 Akamai Technologies European
3320 405 7604 353 Deutsche Telekom AG
8551 403 353 46 Bezeq International
702 396 1800 310 UUNET - Commercial IP service
12479 393 577 6 Uni2 Autonomous System
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 1388 258 163 TVCABLE BOGOTA
8151 1356 2702 364 UniNet S.A. de C.V.
28573 1224 961 83 NET Servicos de Comunicao S.A
6503 1175 354 73 AVANTEL, S.A.
7303 911 464 146 Telecom Argentina Stet-France
14420 644 56 93 CORPORACION NACIONAL DE TELEC
22047 541 310 15 VTR PUNTO NET S.A.
3816 514 225 96 Empresa Nacional de Telecomun
7738 479 922 30 Telecomunicacoes da Bahia S.A
11172 464 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 809 445 11 TEDATA
24863 768 147 39 LINKdotNET AS number
15475 439 90 10 Nile Online
36992 301 271 14 Etisalat MISR
3741 266 987 228 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 222 78 10 RAYA Telecom - Egypt
6713 187 191 17 Itissalat Al-MAGHRIB
29571 178 17 11 Ci Telecom Autonomous system
16637 140 422 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 3683 3855 260 bellsouth.net, inc.
4323 2582 1109 403 Time Warner Telecom
4766 2419 9501 891 Korea Telecom (KIX)
19262 1829 4953 282 Verizon Global Networks
1785 1790 697 131 PaeTec Communications, Inc.
7545 1601 301 82 TPG Internet Pty Ltd
6478 1533 298 89 AT&T Worldnet Services
20115 1527 1534 650 Charter Communications
18566 1522 326 178 Covad Communications
4755 1421 638 165 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 2582 2179 Time Warner Telecom
1785 1790 1659 PaeTec Communications, Inc.
19262 1829 1547 Verizon Global Networks
4766 2419 1528 Korea Telecom (KIX)
7545 1601 1519 TPG Internet Pty Ltd
6478 1533 1444 AT&T Worldnet Services
17974 1400 1371 PT TELEKOMUNIKASI INDONESIA
18566 1522 1344 Covad Communications
4755 1421 1256 TATA Communications formerly
10620 1388 1225 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
1.5.0.0/16 38639 NTT Communications Corporatio
1.6.0.0/15 38639 NTT Communications Corporatio
1.8.0.0/16 38639 NTT Communications Corporatio
1.20.0.0/16 38639 NTT Communications Corporatio
1.32.0.0/16 38639 NTT Communications Corporatio
1.37.0.0/16 38639 NTT Communications Corporatio
1.187.0.0/16 38639 NTT Communications Corporatio
14.0.0.0/24 38639 NTT Communications Corporatio
14.0.1.0/24 38639 NTT Communications Corporatio
14.0.2.0/23 38639 NTT Communications Corporatio
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 /8:24 /9:10 /10:26 /11:72 /12:216
/13:446 /14:764 /15:1371 /16:11550 /17:5662 /18:9335
/19:18985 /20:24551 /21:25154 /22:33469 /23:31883 /24:182452
/25:1143 /26:1382 /27:713 /28:167 /29:9 /30:3
/31:0 /32:7
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2272 3683 bellsouth.net, inc.
18566 1500 1522 Covad Communications
6478 1487 1533 AT&T Worldnet Services
4323 1391 2582 Time Warner Telecom
10620 1279 1388 TVCABLE BOGOTA
11492 1245 1288 Cable One
7011 1057 1158 Citizens Utilities
1785 1055 1790 PaeTec Communications, Inc.
6503 957 1175 AVANTEL, S.A.
19262 941 1829 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:262 2:41 4:14 5:1 8:339 9:1
12:2011 13:1 14:424 15:15 16:3 17:8
20:9 23:1 24:1508 27:600 31:3 32:60
33:4 34:2 36:2 37:1 38:710 39:1
40:101 41:2303 42:13 44:3 46:689 47:4
49:164 50:180 52:13 55:4 56:2 57:32
58:860 59:477 60:384 61:1109 62:1023 63:1926
64:3847 65:2347 66:4326 67:1778 68:1065 69:2876
70:700 71:406 72:1997 73:1 74:2350 75:291
76:341 77:845 78:690 79:443 80:1060 81:794
82:523 83:462 84:636 85:1046 86:574 87:752
88:357 89:1566 90:169 91:3583 92:494 93:1051
94:1225 95:775 96:463 97:253 98:812 99:34
101:50 106:1 107:4 108:129 109:911 110:476
111:717 112:318 113:388 114:511 115:669 116:956
117:677 118:688 119:1051 120:256 121:701 122:1626
123:1042 124:1289 125:1257 128:266 129:165 130:172
131:562 132:108 133:20 134:219 135:49 136:211
137:146 138:297 139:118 140:483 141:203 142:373
143:383 144:490 145:51 146:435 147:203 148:639
149:265 150:168 151:229 152:299 153:180 154:3
155:376 156:178 157:343 158:126 159:376 160:295
161:210 162:278 163:157 164:486 165:344 166:501
167:409 168:728 169:157 170:756 171:69 172:2
173:1250 174:518 175:322 176:1 177:35 178:769
180:816 181:4 182:391 183:244 184:249 186:1038
187:813 188:905 189:1033 190:4584 192:5770 193:4788
194:3490 195:2958 196:1190 197:4 198:3575 199:3844
200:5574 201:1583 202:8276 203:8458 204:4109 205:2302
206:2649 207:3069 208:3890 209:3482 210:2652 211:1356
212:1927 213:1728 214:746 215:63 216:4842 217:1652
218:547 219:373 220:1203 221:473 222:319 223:103
End of report
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