Routing Table Report 04:00 +10GMT Tue 08 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 349535
Prefixes after maximum aggregation: 157528
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 172488
Total ASes present in the Internet Routing Table: 36022
Prefixes per ASN: 9.70
Origin-only ASes present in the Internet Routing Table: 31048
Origin ASes announcing only one prefix: 14957
Transit ASes present in the Internet Routing Table: 4974
Transit-only ASes present in the Internet Routing Table: 122
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: 378
Unregistered ASNs in the Routing Table: 179
Number of 32-bit ASNs allocated by the RIRs: 1179
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: 253
Number of addresses announced to Internet: 2456556960
Equivalent to 146 /8s, 108 /16s and 21 /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: 144952
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86986
Total APNIC prefixes after maximum aggregation: 29719
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 83771
Unique aggregates announced from the APNIC address blocks: 36303
APNIC Region origin ASes present in the Internet Routing Table: 4346
APNIC Prefixes per ASN: 19.28
APNIC Region origin ASes announcing only one prefix: 1201
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: 595328032
Equivalent to 35 /8s, 123 /16s and 252 /24s
Percentage of available APNIC address space announced: 75.5
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: 140206
Total ARIN prefixes after maximum aggregation: 71638
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 110783
Unique aggregates announced from the ARIN address blocks: 44950
ARIN Region origin ASes present in the Internet Routing Table: 14239
ARIN Prefixes per ASN: 7.78
ARIN Region origin ASes announcing only one prefix: 5424
ARIN Region transit ASes present in the Internet Routing Table: 1478
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 787585664
Equivalent to 46 /8s, 241 /16s and 154 /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: 82596
Total RIPE prefixes after maximum aggregation: 46899
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 75896
Unique aggregates announced from the RIPE address blocks: 49400
RIPE Region origin ASes present in the Internet Routing Table: 15388
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: 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: 478790400
Equivalent to 28 /8s, 137 /16s and 195 /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: 32024
Total LACNIC prefixes after maximum aggregation: 7370
LACNIC Deaggregation factor: 4.35
Prefixes being announced from the LACNIC address blocks: 30867
Unique aggregates announced from the LACNIC address blocks: 16118
LACNIC Region origin ASes present in the Internet Routing Table: 1436
LACNIC Prefixes per ASN: 21.50
LACNIC Region origin ASes announcing only one prefix: 430
LACNIC Region transit ASes present in the Internet Routing Table: 266
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 81378176
Equivalent to 4 /8s, 217 /16s and 187 /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: 7507
Total AfriNIC prefixes after maximum aggregation: 1795
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 5903
Unique aggregates announced from the AfriNIC address blocks: 1863
AfriNIC Region origin ASes present in the Internet Routing Table: 432
AfriNIC Prefixes per ASN: 13.66
AfriNIC Region origin ASes announcing only one prefix: 129
AfriNIC Region transit ASes present in the Internet Routing Table: 93
Average AfriNIC Region AS path length visible: 5.4
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21893888
Equivalent to 1 /8s, 78 /16s and 19 /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 2423 9509 892 Korea Telecom (KIX)
7545 1604 301 84 TPG Internet Pty Ltd
4755 1422 638 165 TATA Communications formerly
17974 1405 475 29 PT TELEKOMUNIKASI INDONESIA
24560 1120 324 186 Bharti Airtel Ltd., Telemedia
9583 1044 76 487 Sify Limited
4808 1005 2084 283 CNCGROUP IP network: China169
9829 1001 867 52 BSNL National Internet Backbo
17488 941 161 102 Hathway IP Over Cable Interne
18101 937 117 144 Reliance Infocom Ltd Internet
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 3682 3839 259 bellsouth.net, inc.
4323 2581 1109 403 Time Warner Telecom
19262 1829 4953 282 Verizon Global Networks
1785 1789 697 130 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 1296 537 936 AT&T Data Communications Serv
11492 1290 236 67 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 516 1780 319 UPC Distribution Services
9198 470 267 15 Kazakhtelecom Data Network Ad
34984 467 98 146 BILISIM TELEKOM
3292 448 1996 389 TDC Tele Danmark
8866 441 133 23 Bulgarian Telecommunication C
20940 415 99 319 Akamai Technologies European
3320 405 7604 353 Deutsche Telekom AG
8551 403 353 46 Bezeq International
12479 397 577 6 Uni2 Autonomous System
702 393 1800 307 UUNET - Commercial IP service
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 1384 258 163 TVCABLE BOGOTA
8151 1369 2702 366 UniNet S.A. de C.V.
28573 1222 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 515 225 97 Empresa Nacional de Telecomun
7738 479 922 30 Telecomunicacoes da Bahia S.A
27947 466 53 50 Telconet 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 780 445 11 TEDATA
24863 770 147 39 LINKdotNET AS number
15475 440 90 8 Nile Online
36992 301 271 14 Etisalat MISR
3741 265 987 227 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 228 78 10 RAYA Telecom - Egypt
6713 200 199 11 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
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 3682 3839 259 bellsouth.net, inc.
4323 2581 1109 403 Time Warner Telecom
4766 2423 9509 892 Korea Telecom (KIX)
19262 1829 4953 282 Verizon Global Networks
1785 1789 697 130 PaeTec Communications, Inc.
7545 1604 301 84 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 1422 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 2581 2178 Time Warner Telecom
1785 1789 1659 PaeTec Communications, Inc.
19262 1829 1547 Verizon Global Networks
4766 2423 1531 Korea Telecom (KIX)
7545 1604 1520 TPG Internet Pty Ltd
6478 1533 1444 AT&T Worldnet Services
17974 1405 1376 PT TELEKOMUNIKASI INDONESIA
18566 1522 1344 Covad Communications
4755 1422 1257 TATA Communications formerly
11492 1290 1223 Cable One
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
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
13317 UNALLOCATED 12.44.10.0/24 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 /14:766 /15:1373 /16:11561 /17:5660 /18:9337
/19:18980 /20:24653 /21:25144 /22:33462 /23:31910 /24:182529
/25:1140 /26:1328 /27:710 /28:169 /29:9 /30:3
/31:0 /32:7
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2272 3682 bellsouth.net, inc.
18566 1500 1522 Covad Communications
6478 1487 1533 AT&T Worldnet Services
4323 1390 2581 Time Warner Telecom
10620 1275 1384 TVCABLE BOGOTA
11492 1247 1290 Cable One
7011 1056 1157 Citizens Utilities
1785 1055 1789 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)
----------------------------------------------
1:264 2:43 4:14 5:1 8:339 9:1
12:2027 13:1 14:424 15:15 16:3 17:8
20:9 23:1 24:1498 27:603 31:3 32:60
33:4 34:2 36:2 37:1 38:711 39:1
40:101 41:2281 42:13 44:3 46:704 47:4
49:164 50:180 52:13 55:3 56:2 57:32
58:860 59:478 60:384 61:1110 62:1019 63:1927
64:3855 65:2348 66:4334 67:1779 68:1065 69:2877
70:700 71:407 72:1999 73:1 74:2344 75:291
76:340 77:846 78:700 79:441 80:1072 81:798
82:521 83:462 84:643 85:1044 86:574 87:753
88:357 89:1567 90:171 91:3570 92:495 93:1054
94:1227 95:771 96:463 97:252 98:812 99:34
101:51 106:1 107:4 108:129 109:913 110:478
111:718 112:318 113:391 114:507 115:666 116:953
117:679 118:688 119:1032 120:256 121:702 122:1624
123:1043 124:1290 125:1258 128:266 129:165 130:170
131:561 132:108 133:20 134:218 135:49 136:211
137:146 138:299 139:118 140:485 141:203 142:374
143:381 144:489 145:51 146:435 147:203 148:645
149:275 150:168 151:229 152:298 153:180 154:3
155:376 156:178 157:343 158:130 159:375 160:311
161:211 162:278 163:160 164:485 165:345 166:501
167:409 168:726 169:154 170:758 171:69 172:2
173:1246 174:520 175:327 177:35 178:790 180:815
181:4 182:395 183:244 184:226 186:1040 187:813
188:907 189:1032 190:4586 192:5771 193:4791 194:3493
195:2953 196:1193 197:4 198:3572 199:3838 200:5581
201:1583 202:8277 203:8468 204:4106 205:2293 206:2650
207:3067 208:3892 209:3481 210:2651 211:1355 212:1927
213:1732 214:753 215:63 216:4843 217:1654 218:546
219:373 220:1204 221:473 222:318 223:102
End of report
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