Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Jul 31 18:12:55 UTC 2009
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 at lists.apnic.net
For historical data, please see http://thyme.apnic.net.
If you have any comments please contact Philip Smith <pfs at cisco.com>.
Routing Table Report 04:00 +10GMT Sat 01 Aug, 2009
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 292961
Prefixes after maximum aggregation: 138493
Deaggregation factor: 2.12
Unique aggregates announced to Internet: 145391
Total ASes present in the Internet Routing Table: 31852
Prefixes per ASN: 9.20
Origin-only ASes present in the Internet Routing Table: 27681
Origin ASes announcing only one prefix: 13518
Transit ASes present in the Internet Routing Table: 4171
Transit-only ASes present in the Internet Routing Table: 105
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (12026) 22
Prefixes from unregistered ASNs in the Routing Table: 456
Unregistered ASNs in the Routing Table: 130
Number of 32-bit ASNs allocated by the RIRs: 220
Prefixes from 32-bit ASNs in the Routing Table: 81
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 340
Number of addresses announced to Internet: 2082757696
Equivalent to 124 /8s, 36 /16s and 92 /24s
Percentage of available address space announced: 56.2
Percentage of allocated address space announced: 65.0
Percentage of available address space allocated: 86.4
Percentage of address space in use by end-sites: 78.5
Total number of prefixes smaller than registry allocations: 140414
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 70058
Total APNIC prefixes after maximum aggregation: 24829
APNIC Deaggregation factor: 2.82
Prefixes being announced from the APNIC address blocks: 69476
Unique aggregates announced from the APNIC address blocks: 31605
APNIC Region origin ASes present in the Internet Routing Table: 3717
APNIC Prefixes per ASN: 18.69
APNIC Region origin ASes announcing only one prefix: 1012
APNIC Region transit ASes present in the Internet Routing Table: 579
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 475903680
Equivalent to 28 /8s, 93 /16s and 182 /24s
Percentage of available APNIC address space announced: 88.6
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: 124431
Total ARIN prefixes after maximum aggregation: 66173
ARIN Deaggregation factor: 1.88
Prefixes being announced from the ARIN address blocks: 125090
Unique aggregates announced from the ARIN address blocks: 52293
ARIN Region origin ASes present in the Internet Routing Table: 13139
ARIN Prefixes per ASN: 9.52
ARIN Region origin ASes announcing only one prefix: 5077
ARIN Region transit ASes present in the Internet Routing Table: 1287
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 24
Number of ARIN addresses announced to Internet: 1012769216
Equivalent to 60 /8s, 93 /16s and 161 /24s
Percentage of available ARIN address space announced: 88.8
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 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, 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, 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, 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: 67087
Total RIPE prefixes after maximum aggregation: 39643
RIPE Deaggregation factor: 1.69
Prefixes being announced from the RIPE address blocks: 66684
Unique aggregates announced from the RIPE address blocks: 44964
RIPE Region origin ASes present in the Internet Routing Table: 13340
RIPE Prefixes per ASN: 5.00
RIPE Region origin ASes announcing only one prefix: 6980
RIPE Region transit ASes present in the Internet Routing Table: 1995
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 498967744
Equivalent to 29 /8s, 189 /16s and 164 /24s
Percentage of available RIPE address space announced: 99.1
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
RIPE Address Blocks 25/8, 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, 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: 24832
Total LACNIC prefixes after maximum aggregation: 6078
LACNIC Deaggregation factor: 4.09
Prefixes being announced from the LACNIC address blocks: 24789
Unique aggregates announced from the LACNIC address blocks: 13736
LACNIC Region origin ASes present in the Internet Routing Table: 1147
LACNIC Prefixes per ASN: 21.61
LACNIC Region origin ASes announcing only one prefix: 367
LACNIC Region transit ASes present in the Internet Routing Table: 192
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 23
Number of LACNIC addresses announced to Internet: 72874176
Equivalent to 4 /8s, 87 /16s and 248 /24s
Percentage of available LACNIC address space announced: 72.4
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: 6163
Total AfriNIC prefixes after maximum aggregation: 1482
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6569
Unique aggregates announced from the AfriNIC address blocks: 2514
AfriNIC Region origin ASes present in the Internet Routing Table: 299
AfriNIC Prefixes per ASN: 21.97
AfriNIC Region origin ASes announcing only one prefix: 82
AfriNIC Region transit ASes present in the Internet Routing Table: 61
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 20273152
Equivalent to 1 /8s, 53 /16s and 88 /24s
Percentage of available AfriNIC address space announced: 60.4
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 1714 6976 419 Korea Telecom (KIX)
17488 1543 137 103 Hathway IP Over Cable Interne
4755 1227 292 145 TATA Communications formerly
9583 1114 87 548 Sify Limited
4134 980 17389 381 CHINANET-BACKBONE
7545 807 198 101 TPG Internet Pty Ltd
9829 807 619 15 BSNL National Internet Backbo
23577 785 34 666 Korea Telecom (ATM-MPLS)
4808 754 1515 172 CNCGROUP IP network: China169
18101 750 201 32 Reliance Infocom Ltd Internet
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 4224 3643 323 bellsouth.net, inc.
4323 1912 1048 386 Time Warner Telecom
1785 1719 714 138 PaeTec Communications, Inc.
7018 1511 5907 1047 AT&T WorldNet Services
20115 1428 1464 679 Charter Communications
2386 1265 669 921 AT&T Data Communications Serv
6478 1249 274 302 AT&T Worldnet Services
3356 1201 10963 443 Level 3 Communications, LLC
11492 1129 208 12 Cable One
22773 1079 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 92 195 Evolva Telecom
12479 470 578 6 Uni2 Autonomous System
3292 460 1905 395 TDC Tele Danmark
702 430 1861 346 UUNET - Commercial IP service
9198 367 138 12 Kazakhtelecom Data Network Ad
3320 353 7083 306 Deutsche Telekom AG
3301 347 1684 310 TeliaNet Sweden
3215 344 3081 109 France Telecom Transpac
8866 335 109 20 Bulgarian Telecommunication C
8551 310 290 38 Bezeq International
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 1504 2898 245 UniNet S.A. de C.V.
10620 964 220 107 TVCABLE BOGOTA
28573 637 579 41 NET Servicos de Comunicao S.A
7303 601 320 94 Telecom Argentina Stet-France
22047 539 302 14 VTR PUNTO NET S.A.
11830 489 310 54 Instituto Costarricense de El
11172 443 99 69 Servicios Alestra S.A de C.V
6471 421 96 31 ENTEL CHILE S.A.
7738 410 858 29 Telecomunicacoes da Bahia S.A
3816 386 189 80 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 908 90 48 LINKdotNET AS number
20858 324 34 5 EgyNet
3741 277 856 237 The Internet Solution
2018 245 215 143 Tertiary Education Network
6713 176 166 16 Itissalat Al-MAGHRIB
33783 152 10 8 EEPAD TISP TELECOM & INTERNET
24835 138 46 9 RAYA Telecom - Egypt
29571 138 14 6 Ci Telecom Autonomous system
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 4224 3643 323 bellsouth.net, inc.
4323 1912 1048 386 Time Warner Telecom
1785 1719 714 138 PaeTec Communications, Inc.
4766 1714 6976 419 Korea Telecom (KIX)
17488 1543 137 103 Hathway IP Over Cable Interne
7018 1511 5907 1047 AT&T WorldNet Services
8151 1504 2898 245 UniNet S.A. de C.V.
20115 1428 1464 679 Charter Communications
2386 1265 669 921 AT&T Data Communications Serv
6478 1249 274 302 AT&T Worldnet Services
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
1785 1719 1581 PaeTec Communications, Inc.
4323 1912 1526 Time Warner Telecom
17488 1543 1440 Hathway IP Over Cable Interne
4766 1714 1295 Korea Telecom (KIX)
8151 1504 1259 UniNet S.A. de C.V.
11492 1129 1117 Cable One
4755 1227 1082 TATA Communications formerly
18566 1062 1052 Covad Communications
8452 1025 1018 TEDATA
22773 1079 1013 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 /10:24 /11:58 /12:169
/13:350 /14:619 /15:1171 /16:10574 /17:4763 /18:8324
/19:17206 /20:20600 /21:20446 /22:26358 /23:26224 /24:153360
/25:904 /26:1027 /27:574 /28:157 /29:8 /30:7
/31:1 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2740 4224 bellsouth.net, inc.
4766 1400 1714 Korea Telecom (KIX)
17488 1290 1543 Hathway IP Over Cable Interne
1785 1189 1719 PaeTec Communications, Inc.
11492 1055 1129 Cable One
18566 1043 1062 Covad Communications
4323 967 1912 Time Warner Telecom
9583 967 1114 Sify Limited
8452 947 1025 TEDATA
10620 872 964 TVCABLE BOGOTA
Complete listing at http://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:14 8:210 12:2134 13:7 15:19 16:3
17:5 20:35 24:1111 32:52 34:2 38:583
40:98 41:1721 43:1 44:2 47:22 52:6
53:2 55:2 56:2 57:24 58:597 59:649
60:462 61:1081 62:1111 63:2004 64:3704 65:2407
66:3583 67:1680 68:860 69:2731 70:550 71:152
72:1652 73:2 74:1644 75:175 76:340 77:849
78:586 79:355 80:955 81:852 82:591 83:453
84:634 85:1063 86:372 87:670 88:373 89:1479
90:50 91:2425 92:384 93:1090 94:1107 95:1194
96:157 97:240 98:256 99:28 110:168 111:365
112:117 113:147 114:241 115:350 116:1119 117:555
118:338 119:757 120:147 121:782 122:1056 123:685
124:980 125:1377 128:225 129:222 130:128 131:414
132:74 133:10 134:186 135:43 136:224 137:165
138:167 139:82 140:446 141:123 142:384 143:377
144:361 145:48 146:390 147:152 148:529 149:221
150:206 151:193 152:145 153:148 154:2 155:275
156:167 157:301 158:118 159:343 160:289 161:156
162:272 163:165 164:474 165:515 166:466 167:361
168:709 169:176 170:481 171:41 172:10 173:324
174:269 178:1 180:4 186:109 187:145 188:350
189:573 190:2941 192:5790 193:4259 194:3298 195:2692
196:1127 198:3641 199:3363 200:5133 201:1285 202:7740
203:8287 204:3892 205:2135 206:2443 207:2737 208:3893
209:3449 210:2534 211:1106 212:1662 213:1618 214:80
215:29 216:4550 217:1365 218:405 219:450 220:1104
221:479 222:328
End of report
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