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Weekly Routing Table Report
- Subject: Weekly Routing Table Report
- From: cscora at apnic.net (Routing Analysis Role Account)
- Date: Sat, 21 Mar 2009 04:12:54 +1000 (EST)
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 21 Mar, 2009
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 283363
Prefixes after maximum aggregation: 134180
Deaggregation factor: 2.11
Unique aggregates announced to Internet: 138749
Total ASes present in the Internet Routing Table: 30859
Prefixes per ASN: 9.18
Origin-only ASes present in the Internet Routing Table: 26860
Origin ASes announcing only one prefix: 13062
Transit ASes present in the Internet Routing Table: 3999
Transit-only ASes present in the Internet Routing Table: 90
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (18678) 21
Prefixes from unregistered ASNs in the Routing Table: 498
Unregistered ASNs in the Routing Table: 166
Number of 32-bit ASNs allocated by the RIRs: 132
Prefixes from 32-bit ASNs in the Routing Table: 19
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 238
Number of addresses announced to Internet: 2017104896
Equivalent to 120 /8s, 58 /16s and 148 /24s
Percentage of available address space announced: 54.4
Percentage of allocated address space announced: 63.6
Percentage of available address space allocated: 85.5
Percentage of address space in use by end-sites: 76.0
Total number of prefixes smaller than registry allocations: 139447
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 65453
Total APNIC prefixes after maximum aggregation: 23417
APNIC Deaggregation factor: 2.80
Prefixes being announced from the APNIC address blocks: 62300
Unique aggregates announced from the APNIC address blocks: 28437
APNIC Region origin ASes present in the Internet Routing Table: 3576
APNIC Prefixes per ASN: 17.42
APNIC Region origin ASes announcing only one prefix: 963
APNIC Region transit ASes present in the Internet Routing Table: 552
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 405339808
Equivalent to 24 /8s, 40 /16s and 254 /24s
Percentage of available APNIC address space announced: 80.5
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,
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: 124216
Total ARIN prefixes after maximum aggregation: 65427
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 93638
Unique aggregates announced from the ARIN address blocks: 36241
ARIN Region origin ASes present in the Internet Routing Table: 12858
ARIN Prefixes per ASN: 7.28
ARIN Region origin ASes announcing only one prefix: 4944
ARIN Region transit ASes present in the Internet Routing Table: 1242
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 419705152
Equivalent to 25 /8s, 4 /16s and 49 /24s
Percentage of available ARIN address space announced: 80.7
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
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: 64872
Total RIPE prefixes after maximum aggregation: 37755
RIPE Deaggregation factor: 1.72
Prefixes being announced from the RIPE address blocks: 59455
Unique aggregates announced from the RIPE address blocks: 39555
RIPE Region origin ASes present in the Internet Routing Table: 12812
RIPE Prefixes per ASN: 4.64
RIPE Region origin ASes announcing only one prefix: 6725
RIPE Region transit ASes present in the Internet Routing Table: 1924
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 391469984
Equivalent to 23 /8s, 85 /16s and 91 /24s
Percentage of available RIPE address space announced: 83.3
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: 23523
Total LACNIC prefixes after maximum aggregation: 5813
LACNIC Deaggregation factor: 4.05
Prefixes being announced from the LACNIC address blocks: 21691
Unique aggregates announced from the LACNIC address blocks: 11409
LACNIC Region origin ASes present in the Internet Routing Table: 1082
LACNIC Prefixes per ASN: 20.05
LACNIC Region origin ASes announcing only one prefix: 343
LACNIC Region transit ASes present in the Internet Routing Table: 179
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 61525504
Equivalent to 3 /8s, 170 /16s and 206 /24s
Percentage of available LACNIC address space announced: 61.1
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: 4836
Total AfriNIC prefixes after maximum aggregation: 1392
AfriNIC Deaggregation factor: 3.47
Prefixes being announced from the AfriNIC address blocks: 4536
Unique aggregates announced from the AfriNIC address blocks: 1343
AfriNIC Region origin ASes present in the Internet Routing Table: 288
AfriNIC Prefixes per ASN: 15.75
AfriNIC Region origin ASes announcing only one prefix: 87
AfriNIC Region transit ASes present in the Internet Routing Table: 55
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 10131968
Equivalent to 0 /8s, 154 /16s and 154 /24s
Percentage of available AfriNIC address space announced: 30.2
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 1691 6930 393 Korea Telecom (KIX)
17488 1527 119 98 Hathway IP Over Cable Interne
4755 1218 431 179 TATA Communications formerly
9583 1093 86 531 Sify Limited
4134 925 16263 365 CHINANET-BACKBONE
7545 765 159 104 TPG Internet Pty Ltd
18101 755 206 31 Reliance Infocom Ltd Internet
9498 692 296 50 BHARTI BT INTERNET LTD.
24560 678 228 175 Bharti Airtel Ltd.
9829 637 490 21 BSNL National Internet Backbo
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 4324 3672 329 bellsouth.net, inc.
209 2908 4149 634 Qwest
4323 1801 1049 372 Time Warner Telecom
1785 1732 717 139 PaeTec Communications, Inc.
20115 1593 1431 720 Charter Communications
7018 1445 5896 1019 AT&T WorldNet Services
6478 1295 297 530 AT&T Worldnet Services
2386 1263 681 902 AT&T Data Communications Serv
11492 1194 192 12 Cable One
3356 1174 10976 444 Level 3 Communications, LLC
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
8452 1250 188 7 TEDATA
3292 444 1762 389 TDC Tele Danmark
30890 441 87 196 SC Kappa Invexim SRL
12479 404 578 6 Uni2 Autonomous System
3320 353 7081 296 Deutsche Telekom AG
3301 344 1686 309 TeliaNet Sweden
8866 337 109 22 Bulgarian Telecommunication C
3215 336 2985 109 France Telecom Transpac
29049 321 26 3 AzerSat LLC.
8551 313 288 40 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 1444 2832 234 UniNet S.A. de C.V.
10620 845 191 80 TVCABLE BOGOTA
22047 606 302 14 VTR PUNTO NET S.A.
7303 520 260 80 Telecom Argentina Stet-France
11830 520 294 42 Instituto Costarricense de El
16814 491 31 10 NSS, S.A.
6471 441 95 32 ENTEL CHILE S.A.
11172 406 102 72 Servicios Alestra S.A de C.V
7738 397 794 28 Telecomunicacoes da Bahia S.A
28573 385 518 25 NET Servicos de Comunicao S.A
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
24863 829 74 30 LINKdotNET AS number
20858 292 34 3 This AS will be used to conne
3741 272 858 232 The Internet Solution
2018 241 215 141 Tertiary Education Network
6713 159 150 15 Itissalat Al-MAGHRIB
33783 150 10 8 EEPAD TISP TELECOM & INTERNET
29571 132 15 8 Ci Telecom Autonomous system
5536 123 8 9 Internet Egypt Network
5713 115 507 65 Telkom SA Ltd
33776 112 6 6 Starcomms Nigeria Limited
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 4324 3672 329 bellsouth.net, inc.
209 2908 4149 634 Qwest
4323 1801 1049 372 Time Warner Telecom
1785 1732 717 139 PaeTec Communications, Inc.
4766 1691 6930 393 Korea Telecom (KIX)
20115 1593 1431 720 Charter Communications
17488 1527 119 98 Hathway IP Over Cable Interne
7018 1445 5896 1019 AT&T WorldNet Services
8151 1444 2832 234 UniNet S.A. de C.V.
6478 1295 297 530 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
209 2908 2274 Qwest
1785 1732 1593 PaeTec Communications, Inc.
4323 1801 1429 Time Warner Telecom
17488 1527 1429 Hathway IP Over Cable Interne
4766 1691 1298 Korea Telecom (KIX)
8452 1250 1243 TEDATA
8151 1444 1210 UniNet S.A. de C.V.
11492 1194 1182 Cable One
18566 1061 1051 Covad Communications
4755 1218 1039 TATA Communications formerly
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
24.75.116.0/22 10796 ServiceCo LLC - Road Runner
24.246.0.0/17 7018 AT&T WorldNet Services
24.246.128.0/18 7018 AT&T WorldNet Services
41.220.16.0/20 8668 TelOne Zimbabwe P/L
41.223.112.0/22 5713 Telkom SA Ltd
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
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 /10:20 /11:55 /12:163
/13:320 /14:580 /15:1134 /16:10384 /17:4638 /18:7988
/19:17022 /20:20163 /21:19860 /22:25312 /23:25214 /24:148254
/25:697 /26:861 /27:545 /28:106 /29:8 /30:3
/31:0 /32:7
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2806 4324 bellsouth.net, inc.
209 1615 2908 Qwest
4766 1395 1691 Korea Telecom (KIX)
17488 1297 1527 Hathway IP Over Cable Interne
8452 1229 1250 TEDATA
11492 1149 1194 Cable One
1785 1140 1732 PaeTec Communications, Inc.
18566 1042 1061 Covad Communications
2386 964 1263 AT&T Data Communications Serv
9583 945 1093 Sify Limited
Complete listing at http://thyme.apnic.net/current/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:13 8:172 12:2195 13:3 15:19 16:3
17:4 20:35 24:1115 32:51 38:551 40:97
41:2009 43:1 44:2 47:21 52:3 55:2
56:3 57:25 58:536 59:624 60:460 61:1107
62:1121 63:2011 64:3549 65:2421 66:3562 67:1493
68:677 69:2509 70:509 71:164 72:1665 73:2
74:1439 75:205 76:313 77:833 78:544 79:304
80:958 81:824 82:560 83:411 84:596 85:1019
86:397 87:632 88:352 89:1491 90:45 91:2064
92:276 93:1110 94:1202 95:829 96:104 97:190
98:238 99:17 109:1 110:7 112:87 113:89
114:221 115:234 116:1128 117:477 118:289 119:656
120:138 121:708 122:981 123:564 124:958 125:1291
128:220 129:225 130:130 131:413 132:74 133:9
134:188 135:39 136:223 137:144 138:146 139:78
140:416 141:104 142:393 143:326 144:325 145:41
146:374 147:149 148:513 149:237 150:147 151:206
152:151 153:135 154:11 155:266 156:167 157:297
158:132 159:266 160:281 161:137 162:270 163:148
164:479 165:516 166:277 167:361 168:682 169:163
170:472 171:39 172:10 173:246 174:161 178:1
186:6 187:44 188:8 189:310 190:2709 192:5807
193:4216 194:3329 195:2658 196:1067 198:3729 199:3314
200:5500 201:1360 202:7865 203:8051 204:3783 205:2162
206:2359 207:2805 208:3880 209:3446 210:2635 211:1114
212:1493 213:1692 214:68 215:25 216:4527 217:1263
218:371 219:418 220:1216 221:459 222:261
End of report