[c-nsp] Fwd: Internet Routing Table Size
Farhan Jaffer
bandhani at gmail.com
Sat Oct 11 00:36:32 EDT 2008
You can register yourself for weekly routing table.
-FJ
---------- Forwarded message ----------
From: Routing Analysis Role Account <cscora at apnic.net>
Date: Fri, Oct 10, 2008 at 11:09 PM
Subject: [SANOG] Weekly Routing Table Report
To: apops at apops.net, nanog at nanog.org, routing-wg at ripe.net, afnog at afnog.org,
ausnog at ausnog.net, sanog at sanog.org
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 11 Oct, 2008
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 270790
Prefixes after maximum aggregation: 130670
Deaggregation factor: 2.07
Unique aggregates announced to Internet: 131713
Total ASes present in the Internet Routing Table: 29477
Prefixes per ASN: 9.19
Origin-only ASes present in the Internet Routing Table: 25621
Origin ASes announcing only one prefix: 12506
Transit ASes present in the Internet Routing Table: 3856
Transit-only ASes present in the Internet Routing Table: 82
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 18
Max AS path prepend of ASN ( 3816) 15
Prefixes from unregistered ASNs in the Routing Table: 569
Unregistered ASNs in the Routing Table: 208
Number of 32-bit ASNs allocated by the RIRs: 61
Prefixes from 32-bit ASNs in the Routing Table: 10
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 755
Number of addresses announced to Internet: 1911844672
Equivalent to 113 /8s, 244 /16s and 111 /24s
Percentage of available address space announced: 51.6
Percentage of allocated address space announced: 62.6
Percentage of available address space allocated: 82.3
Percentage of address space in use by end-sites: 73.7
Total number of prefixes smaller than registry allocations: 132945
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 62393
Total APNIC prefixes after maximum aggregation: 23186
APNIC Deaggregation factor: 2.69
Prefixes being announced from the APNIC address blocks: 59270
Unique aggregates announced from the APNIC address blocks: 26697
APNIC Region origin ASes present in the Internet Routing Table: 3402
APNIC Prefixes per ASN: 17.42
APNIC Region origin ASes announcing only one prefix: 903
APNIC Region transit ASes present in the Internet Routing Table: 543
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 378110880
Equivalent to 22 /8s, 137 /16s and 131 /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, 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: 123078
Total ARIN prefixes after maximum aggregation: 64823
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 92344
Unique aggregates announced from the ARIN address blocks: 35062
ARIN Region origin ASes present in the Internet Routing Table: 12519
ARIN Prefixes per ASN: 7.38
ARIN Region origin ASes announcing only one prefix: 4856
ARIN Region transit ASes present in the Internet Routing Table: 1197
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 365498400
Equivalent to 21 /8s, 201 /16s and 16 /24s
Percentage of available ARIN address space announced: 75.1
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, 173/8, 174/8,
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: 58965
Total RIPE prefixes after maximum aggregation: 35511
RIPE Deaggregation factor: 1.66
Prefixes being announced from the RIPE address blocks: 54163
Unique aggregates announced from the RIPE address blocks: 36250
RIPE Region origin ASes present in the Internet Routing Table: 12011
RIPE Prefixes per ASN: 4.51
RIPE Region origin ASes announcing only one prefix: 6332
RIPE Region transit ASes present in the Internet Routing Table: 1842
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 375037856
Equivalent to 22 /8s, 90 /16s and 159 /24s
Percentage of available RIPE address space announced: 86.0
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, 47104-49151
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, 193/8,
194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 21825
Total LACNIC prefixes after maximum aggregation: 5399
LACNIC Deaggregation factor: 4.04
Prefixes being announced from the LACNIC address blocks: 19874
Unique aggregates announced from the LACNIC address blocks: 11074
LACNIC Region origin ASes present in the Internet Routing Table: 1010
LACNIC Prefixes per ASN: 19.68
LACNIC Region origin ASes announcing only one prefix: 332
LACNIC Region transit ASes present in the Internet Routing Table: 170
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 57342720
Equivalent to 3 /8s, 106 /16s and 251 /24s
Percentage of available LACNIC address space announced: 57.0
LACNIC AS Blocks 26592-26623, 27648-28671, 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: 3963
Total AfriNIC prefixes after maximum aggregation: 1310
AfriNIC Deaggregation factor: 3.03
Prefixes being announced from the AfriNIC address blocks: 4229
Unique aggregates announced from the AfriNIC address blocks: 2056
AfriNIC Region origin ASes present in the Internet Routing Table: 261
AfriNIC Prefixes per ASN: 16.20
AfriNIC Region origin ASes announcing only one prefix: 83
AfriNIC Region transit ASes present in the Internet Routing Table: 56
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 12835328
Equivalent to 0 /8s, 195 /16s and 218 /24s
Percentage of available AfriNIC address space announced: 38.3
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4755 1476 522 197 TATA Communications formerly
17488 1420 96 103 Hathway IP Over Cable Interne
9583 1108 87 476 Sify Limited
4766 885 6407 362 Korea Telecom (KIX)
4134 843 13664 346 CHINANET-BACKBONE
23577 811 34 694 Korea Telecom (ATM-MPLS)
18101 781 167 26 Reliance Infocom Ltd Internet
4780 716 355 61 Digital United Inc.
9498 686 295 54 BHARTI BT INTERNET LTD.
4808 627 1164 142 CNCGROUP IP network: China169
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 4296 3416 339 bellsouth.net, inc.
209 2938 4033 621 Qwest
6298 2011 319 711 Cox Communicatons
20115 1878 1424 715 Charter Communications
1785 1670 717 154 PaeTec Communications, Inc.
2386 1558 699 896 AT&T Data Communications Serv
4323 1553 1084 376 Time Warner Telecom
7018 1410 5859 988 AT&T WorldNet Services
6478 1312 273 197 AT&T Worldnet Services
11492 1216 152 11 Cable One
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
3292 435 1777 384 TDC Tele Danmark
30890 348 94 188 SC Kappa Invexim SRL
3215 328 2756 107 France Telecom Transpac
3301 328 1428 299 TeliaNet Sweden
3320 325 7063 274 Deutsche Telekom AG
8866 324 79 22 Bulgarian Telecommunication C
8452 308 188 11 TEDATA
5462 301 794 27 Telewest Broadband
8551 287 270 37 Bezeq International
680 275 2047 265 DFN-IP service G-WiN
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 1419 2849 219 UniNet S.A. de C.V.
11830 669 299 9 Instituto Costarricense de El
22047 564 270 14 VTR PUNTO NET S.A.
10620 504 122 61 TVCABLE BOGOTA
7303 490 241 69 Telecom Argentina Stet-France
16814 426 27 10 NSS, S.A.
6471 420 85 49 ENTEL CHILE S.A.
11172 407 118 71 Servicios Alestra S.A de C.V
28573 372 460 23 NET Servicos de Comunicao S.A
14117 343 23 9 Telefonica del Sur 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 543 71 39 LINKdotNET AS number
3741 267 856 225 The Internet Solution
2018 235 215 139 Tertiary Education Network
20858 194 34 3 EgyNet
6713 143 135 11 Itissalat Al-MAGHRIB
33783 137 10 13 EEPAD TISP TELECOM & INTERNET
5536 120 8 17 Internet Egypt Network
5713 119 555 69 Telkom SA Ltd
33776 116 6 3 Starcomms Nigeria Limited
29571 109 13 9 Ci Telecom Autonomous system
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 4296 3416 339 bellsouth.net, inc.
209 2938 4033 621 Qwest
6298 2011 319 711 Cox Communicatons
20115 1878 1424 715 Charter Communications
1785 1670 717 154 PaeTec Communications, Inc.
2386 1558 699 896 AT&T Data Communications Serv
4323 1553 1084 376 Time Warner Telecom
4755 1476 522 197 TATA Communications formerly
17488 1420 96 103 Hathway IP Over Cable Interne
8151 1419 2849 219 UniNet S.A. de C.V.
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
209 2938 2317 Qwest
1785 1670 1516 PaeTec Communications, Inc.
17488 1420 1317 Hathway IP Over Cable Interne
6298 2011 1300 Cox Communicatons
4755 1476 1279 TATA Communications formerly
11492 1216 1205 Cable One
8151 1419 1200 UniNet S.A. de C.V.
4323 1553 1177 Time Warner Telecom
20115 1878 1163 Charter Communications
6478 1312 1115 AT&T Worldnet Services
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
22492 UNALLOCATED 12.2.46.0/24 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 3549 Global Crossing
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
24.142.40.0/21 7018 AT&T WorldNet Services
24.142.160.0/19 7018 AT&T WorldNet Services
24.246.0.0/17 7018 AT&T WorldNet Services
24.246.128.0/18 7018 AT&T WorldNet Services
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
63.143.71.0/24 701 UUNET Technologies, Inc.
63.143.115.0/24 701 UUNET Technologies, Inc.
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 /8:18 /9:9 /10:17 /11:46 /12:148
/13:297 /14:536 /15:1063 /16:10150 /17:4411 /18:7643
/19:16360 /20:19220 /21:18775 /22:23634 /23:24603 /24:141184
/25:820 /26:989 /27:763 /28:87 /29:9 /30:1
/31:0 /32:7
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2843 4296 bellsouth.net, inc.
6298 1985 2011 Cox Communicatons
209 1696 2938 Qwest
2386 1238 1558 AT&T Data Communications Serv
17488 1213 1420 Hathway IP Over Cable Interne
11492 1192 1216 Cable One
1785 1131 1670 PaeTec Communications, Inc.
6478 1098 1312 AT&T Worldnet Services
18566 1043 1062 Covad Communications
20115 987 1878 Charter Communications
Complete listing at http://thyme.apnic.net/current/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:140 12:2182 13:2 15:22 16:3
17:5 18:13 20:35 24:1135 31:1 32:58
38:508 40:92 41:710 43:1 44:2 47:12
52:3 55:3 56:3 57:26 58:517 59:527
60:452 61:980 62:1098 63:2032 64:3227 65:2407
66:3518 67:1277 68:802 69:2320 70:861 71:275
72:2030 73:7 74:1239 75:188 76:275 77:816
78:843 79:266 80:907 81:871 82:600 83:392
84:553 85:1008 86:400 87:708 88:340 89:1376
90:22 91:1582 92:274 93:895 94:235 95:3
96:79 97:97 98:340 99:8 113:10 114:95
115:118 116:1007 117:374 118:237 119:517 120:93
121:599 122:855 123:440 124:867 125:1193 128:356
129:204 130:135 131:415 132:72 133:9 134:184
135:32 136:223 137:97 138:143 139:81 140:509
141:108 142:403 143:301 144:327 145:50 146:373
147:156 148:529 149:211 150:128 151:181 152:148
153:136 154:10 155:282 156:174 157:301 158:170
159:304 160:275 161:138 162:255 163:133 164:519
165:510 166:364 167:337 168:637 169:143 170:450
171:33 172:10 173:50 187:16 188:1 189:325
190:2299 192:5750 193:4130 194:3243 195:2584 196:1009
198:3740 199:3294 200:5553 201:1422 202:7771 203:8077
204:3923 205:2143 206:2341 207:2757 208:3666 209:3433
210:2564 211:1100 212:1482 213:1544 214:169 215:50
216:4393 217:1237 218:346 219:440 220:1054 221:416
222:290
End of report
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