This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats@lists.apnic.net
For historical data, please see http://thyme.apnic.net.
If you have any comments please contact Philip Smith pfs@cisco.com.
Routing Table Report 04:00 +10GMT Sat 18 Jul, 2009
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 291194
Prefixes after maximum aggregation: 138119
Deaggregation factor: 2.11
Unique aggregates announced to Internet: 144889
Total ASes present in the Internet Routing Table: 31769
Prefixes per ASN: 9.17
Origin-only ASes present in the Internet Routing Table: 27636
Origin ASes announcing only one prefix: 13456
Transit ASes present in the Internet Routing Table: 4133
Transit-only ASes present in the Internet Routing Table: 94
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 39
Max AS path prepend of ASN (22394) 36
Prefixes from unregistered ASNs in the Routing Table: 421
Unregistered ASNs in the Routing Table: 124
Number of 32-bit ASNs allocated by the RIRs: 205
Prefixes from 32-bit ASNs in the Routing Table: 68
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 336
Number of addresses announced to Internet: 2071237376
Equivalent to 123 /8s, 116 /16s and 147 /24s
Percentage of available address space announced: 55.9
Percentage of allocated address space announced: 64.7
Percentage of available address space allocated: 86.4
Percentage of address space in use by end-sites: 78.3
Total number of prefixes smaller than registry allocations: 144294
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 69386
Total APNIC prefixes after maximum aggregation: 24781
APNIC Deaggregation factor: 2.80
Prefixes being announced from the APNIC address blocks: 68804
Unique aggregates announced from the APNIC address blocks: 31533
APNIC Region origin ASes present in the Internet Routing Table: 3708
APNIC Prefixes per ASN: 18.56
APNIC Region origin ASes announcing only one prefix: 1010
APNIC Region transit ASes present in the Internet Routing Table: 571
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 469439936
Equivalent to 27 /8s, 251 /16s and 21 /24s
Percentage of available APNIC address space announced: 87.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
APNIC Address Blocks 58/8, 59/8, 60/8, 61/8, 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,
180/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8,
219/8, 220/8, 221/8, 222/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 123853
Total ARIN prefixes after maximum aggregation: 66050
ARIN Deaggregation factor: 1.88
Prefixes being announced from the ARIN address blocks: 124535
Unique aggregates announced from the ARIN address blocks: 52165
ARIN Region origin ASes present in the Internet Routing Table: 13114
ARIN Prefixes per ASN: 9.50
ARIN Region origin ASes announcing only one prefix: 5050
ARIN Region transit ASes present in the Internet Routing Table: 1274
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 39
Number of ARIN addresses announced to Internet: 1010319808
Equivalent to 60 /8s, 56 /16s and 65 /24s
Percentage of available ARIN address space announced: 194.3
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
ARIN Address Blocks 24/8, 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, 108/8, 173/8,
174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8,
208/8, 209/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 66747
Total RIPE prefixes after maximum aggregation: 39472
RIPE Deaggregation factor: 1.69
Prefixes being announced from the RIPE address blocks: 66310
Unique aggregates announced from the RIPE address blocks: 44758
RIPE Region origin ASes present in the Internet Routing Table: 13298
RIPE Prefixes per ASN: 4.99
RIPE Region origin ASes announcing only one prefix: 6939
RIPE Region transit ASes present in the Internet Routing Table: 1991
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 496661184
Equivalent to 29 /8s, 154 /16s and 114 /24s
Percentage of available RIPE address space announced: 105.7
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
RIPE Address Blocks 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,
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: 24613
Total LACNIC prefixes after maximum aggregation: 6037
LACNIC Deaggregation factor: 4.08
Prefixes being announced from the LACNIC address blocks: 24551
Unique aggregates announced from the LACNIC address blocks: 13594
LACNIC Region origin ASes present in the Internet Routing Table: 1143
LACNIC Prefixes per ASN: 21.48
LACNIC Region origin ASes announcing only one prefix: 368
LACNIC Region transit ASes present in the Internet Routing Table: 191
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 72393856
Equivalent to 4 /8s, 80 /16s and 164 /24s
Percentage of available LACNIC address space announced: 71.9
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247
plus ERX transfers
LACNIC Address Blocks 186/8, 187/8, 189/8, 190/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 6228
Total AfriNIC prefixes after maximum aggregation: 1503
AfriNIC Deaggregation factor: 4.14
Prefixes being announced from the AfriNIC address blocks: 6644
Unique aggregates announced from the AfriNIC address blocks: 2564
AfriNIC Region origin ASes present in the Internet Routing Table: 306
AfriNIC Prefixes per ASN: 21.71
AfriNIC Region origin ASes announcing only one prefix: 89
AfriNIC Region transit ASes present in the Internet Routing Table: 64
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 20050176
Equivalent to 1 /8s, 49 /16s and 241 /24s
Percentage of available AfriNIC address space announced: 59.8
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1700 6934 407 Korea Telecom (KIX)
17488 1543 137 104 Hathway IP Over Cable Interne
4755 1219 292 144 TATA Communications formerly
9583 1126 87 559 Sify Limited
4134 990 17290 375 CHINANET-BACKBONE
7545 811 198 102 TPG Internet Pty Ltd
9829 800 611 14 BSNL National Internet Backbo
23577 785 34 666 Korea Telecom (ATM-MPLS)
18101 749 201 32 Reliance Infocom Ltd Internet
24560 729 246 168 Bharti Airtel Ltd.
Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 4245 3643 323 bellsouth.net, inc.
4323 1894 1048 385 Time Warner Telecom
1785 1711 714 139 PaeTec Communications, Inc.
7018 1507 5909 1049 AT&T WorldNet Services
20115 1415 1460 681 Charter Communications
2386 1267 670 918 AT&T Data Communications Serv
6478 1217 275 311 AT&T Worldnet Services
3356 1180 10961 443 Level 3 Communications, LLC
11492 1127 208 12 Cable One
22773 1076 2604 66 Cox Communications, Inc.
Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
30890 483 92 196 Evolva Telecom
12479 473 578 6 Uni2 Autonomous System
3292 455 1902 391 TDC Tele Danmark
702 429 1861 345 UUNET - Commercial IP service
35805 356 40 5 United Telecom of Georgia
3320 351 7082 305 Deutsche Telekom AG
3301 348 1684 310 TeliaNet Sweden
3215 343 3065 108 France Telecom Transpac
8866 333 109 20 Bulgarian Telecommunication C
29049 308 26 3 AzerSat LLC.
Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1474 2882 232 UniNet S.A. de C.V.
10620 949 216 111 TVCABLE BOGOTA
28573 613 575 32 NET Servicos de Comunicao S.A
7303 595 315 92 Telecom Argentina Stet-France
22047 543 302 14 VTR PUNTO NET S.A.
11830 488 309 56 Instituto Costarricense de El
11172 442 99 70 Servicios Alestra S.A de C.V
6471 434 96 31 ENTEL CHILE S.A.
7738 410 858 29 Telecomunicacoes da Bahia S.A
3816 383 188 79 Empresa Nacional de Telecomun
Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1025 188 7 TEDATA
24863 903 90 48 LINKdotNET AS number
20858 323 34 5 EgyNet
3741 276 856 236 The Internet Solution
2018 243 215 143 Tertiary Education Network
6713 176 166 16 Itissalat Al-MAGHRIB
33783 152 10 8 EEPAD TISP TELECOM & INTERNET
29571 140 15 8 Ci Telecom Autonomous system
24835 129 46 9 RAYA Telecom - Egypt
5536 123 8 9 Internet Egypt Network
Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 4245 3643 323 bellsouth.net, inc.
4323 1894 1048 385 Time Warner Telecom
1785 1711 714 139 PaeTec Communications, Inc.
4766 1700 6934 407 Korea Telecom (KIX)
17488 1543 137 104 Hathway IP Over Cable Interne
7018 1507 5909 1049 AT&T WorldNet Services
8151 1474 2882 232 UniNet S.A. de C.V.
20115 1415 1460 681 Charter Communications
2386 1267 670 918 AT&T Data Communications Serv
4755 1219 292 144 TATA Communications formerly
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
1785 1711 1572 PaeTec Communications, Inc.
4323 1894 1509 Time Warner Telecom
17488 1543 1439 Hathway IP Over Cable Interne
4766 1700 1293 Korea Telecom (KIX)
8151 1474 1242 UniNet S.A. de C.V.
11492 1127 1115 Cable One
4755 1219 1075 TATA Communications formerly
18566 1062 1052 Covad Communications
8452 1025 1018 TEDATA
22773 1076 1010 Cox Communications, Inc.
Complete listing at http://thyme.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 7018 AT&T WorldNet Servic
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic
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 12.39.159.0/24 7018 AT&T WorldNet Servic
32326 UNALLOCATED 12.40.49.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
41.223.92.0/22 36936 >>UNKNOWN<<
41.223.112.0/22 5713 Telkom SA Ltd
41.223.176.0/22 36981 >>UNKNOWN<<
41.223.188.0/24 22351 Intelsat
41.223.189.0/24 26452 Local Communications Networks
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
63.140.213.0/24 22555 Universal Talkware Corporatio
63.143.251.0/24 22555 Universal Talkware Corporatio
64.31.32.0/19 11955 ServiceCo LLC - Road Runner
Complete listing at http://thyme.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 /10:23 /11:58 /12:169
/13:350 /14:612 /15:1164 /16:10530 /17:4745 /18:8215
/19:17158 /20:20481 /21:20356 /22:26143 /23:26067 /24:152392
/25:930 /26:1033 /27:560 /28:155 /29:8 /30:7
/31:1 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2756 4245 bellsouth.net, inc.
4766 1399 1700 Korea Telecom (KIX)
17488 1289 1543 Hathway IP Over Cable Interne
1785 1182 1711 PaeTec Communications, Inc.
11492 1053 1127 Cable One
18566 1043 1062 Covad Communications
2386 985 1267 AT&T Data Communications Serv
9583 979 1126 Sify Limited
4323 961 1894 Time Warner Telecom
8452 947 1025 TEDATA
Complete listing at http://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:14 8:209 12:2138 13:7 15:19 16:3
17:5 20:35 24:1100 32:51 34:2 38:578
40:98 41:1788 43:1 44:2 47:22 52:6
55:2 56:2 57:24 58:600 59:648 60:461
61:1076 62:1105 63:2049 64:3711 65:2396 66:3585
67:1609 68:858 69:2662 70:555 71:152 72:1665
73:2 74:1617 75:171 76:343 77:841 78:561
79:353 80:979 81:840 82:570 83:457 84:625
85:1029 86:370 87:678 88:371 89:1444 90:50
91:2404 92:363 93:1086 94:1226 95:1120 96:151
97:215 98:251 99:26 110:174 111:91 112:110
113:142 114:255 115:318 116:1127 117:536 118:356
119:744 120:146 121:782 122:1056 123:698 124:982
125:1374 128:225 129:232 130:128 131:413 132:74
133:9 134:187 135:40 136:219 137:164 138:168
139:80 140:443 141:121 142:385 143:352 144:366
145:48 146:390 147:154 148:520 149:231 150:175
151:193 152:146 153:147 154:2 155:274 156:167
157:300 158:117 159:344 160:289 161:153 162:275
163:162 164:476 165:513 166:465 167:360 168:658
169:172 170:477 171:41 172:10 173:314 174:240
178:1 186:103 187:118 188:282 189:543 190:2923
192:5784 193:4268 194:3302 195:2703 196:1121 198:3611
199:3367 200:5139 201:1284 202:7685 203:8266 204:3897
205:2157 206:2449 207:2742 208:3880 209:3377 210:2523
211:1119 212:1652 213:1639 214:84 215:29 216:4543
217:1353 218:396 219:442 220:1113 221:480 222:326
End of report
