[afnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Apr 18 18:06:54 UTC 2008
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 19 Apr, 2008
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 253162
Prefixes after maximum aggregation: 126760
Deaggregation factor: 2.00
Unique aggregates announced to Internet: 123363
Total ASes present in the Internet Routing Table: 27936
Prefixes per ASN: 9.06
Origin-only ASes present in the Internet Routing Table: 24339
Origin ASes announcing only one prefix: 11339
Transit ASes present in the Internet Routing Table: 3597
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: 19
Max AS path prepend of ASN (39375) 13
Prefixes from unregistered ASNs in the Routing Table: 25206
Unregistered ASNs in the Routing Table: 1878
Number of 32-bit ASNs allocated by the RIRs: 44
Prefixes from 32-bit ASNs in the Routing Table: 9
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 817
Number of addresses announced to Internet: 1863527072
Equivalent to 111 /8s, 19 /16s and 42 /24s
Percentage of available address space announced: 50.3
Percentage of allocated address space announced: 61.7
Percentage of available address space allocated: 81.4
Percentage of address space in use by end-sites: 71.6
Total number of prefixes smaller than registry allocations: 121228
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 42770
Total APNIC prefixes after maximum aggregation: 13580
APNIC Deaggregation factor: 3.15
Prefixes being announced from the APNIC address blocks: 55042
Unique aggregates announced from the APNIC address blocks: 23982
APNIC Region origin ASes present in the Internet Routing Table: 1919
APNIC Prefixes per ASN: 28.68
APNIC Region origin ASes announcing only one prefix: 552
APNIC Region transit ASes present in the Internet Routing Table: 351
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 343577696
Equivalent to 20 /8s, 122 /16s and 148 /24s
Percentage of available APNIC address space announced: 78.8
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, 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: 107494
Total ARIN prefixes after maximum aggregation: 59206
ARIN Deaggregation factor: 1.82
Prefixes being announced from the ARIN address blocks: 86580
Unique aggregates announced from the ARIN address blocks: 34280
ARIN Region origin ASes present in the Internet Routing Table: 11728
ARIN Prefixes per ASN: 7.38
ARIN Region origin ASes announcing only one prefix: 4573
ARIN Region transit ASes present in the Internet Routing Table: 1051
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 362513664
Equivalent to 21 /8s, 155 /16s and 133 /24s
Percentage of available ARIN address space announced: 74.5
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
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: 54327
Total RIPE prefixes after maximum aggregation: 33347
RIPE Deaggregation factor: 1.63
Prefixes being announced from the RIPE address blocks: 49539
Unique aggregates announced from the RIPE address blocks: 33168
RIPE Region origin ASes present in the Internet Routing Table: 11204
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5857
RIPE Region transit ASes present in the Internet Routing Table: 1705
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 353545728
Equivalent to 21 /8s, 18 /16s and 174 /24s
Percentage of available RIPE address space announced: 81.0
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
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: 19668
Total LACNIC prefixes after maximum aggregation: 4920
LACNIC Deaggregation factor: 4.00
Prefixes being announced from the LACNIC address blocks: 18046
Unique aggregates announced from the LACNIC address blocks: 9732
LACNIC Region origin ASes present in the Internet Routing Table: 893
LACNIC Prefixes per ASN: 20.21
LACNIC Region origin ASes announcing only one prefix: 279
LACNIC Region transit ASes present in the Internet Routing Table: 153
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 50580736
Equivalent to 3 /8s, 3 /16s and 205 /24s
Percentage of available LACNIC address space announced: 50.2
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: 3696
Total AfriNIC prefixes after maximum aggregation: 1150
AfriNIC Deaggregation factor: 3.21
Prefixes being announced from the AfriNIC address blocks: 4073
Unique aggregates announced from the AfriNIC address blocks: 1828
AfriNIC Region origin ASes present in the Internet Routing Table: 235
AfriNIC Prefixes per ASN: 17.33
AfriNIC Region origin ASes announcing only one prefix: 78
AfriNIC Region transit ASes present in the Internet Routing Table: 43
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 11336192
Equivalent to 0 /8s, 172 /16s and 250 /24s
Percentage of available AfriNIC address space announced: 33.8
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 1632 387 89 Videsh Sanchar Nigam Ltd. Aut
9583 1166 99 211 Sify Limited
9498 1162 550 61 BHARTI BT INTERNET LTD.
17488 1016 69 78 Hathway IP Over Cable Interne
4134 856 12647 320 CHINANET-BACKBONE
4766 851 6006 344 Korea Telecom (KIX)
18101 681 132 54 Reliance Infocom Ltd Internet
9829 598 450 12 BSNL National Internet Backbo
1221 544 1918 418 Telstra Pty Ltd
4812 544 980 73 China Telecom (Shanghai)
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
4323 1428 1030 377 Time Warner Telecom
7018 1407 5978 1006 AT&T WorldNet Services
2386 1394 642 862 AT&T Data Communications Serv
11492 1214 146 45 Cable One
7011 1094 318 621 Citizens Utilities
18566 1043 296 10 Covad Communications
1785 1011 511 107 AppliedTheory Corporation
6197 984 597 507 BellSouth Network Solutions,
174 967 6835 801 Cogent Communications
20115 922 874 512 Charter Communications
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 406 1787 368 TDC Tele Danmark
8452 356 188 7 TEDATA
9198 339 74 9 Kazakhtelecom Data Network Ad
3301 338 1459 307 TeliaNet Sweden
3320 327 7045 271 Deutsche Telekom AG
8866 293 78 24 Bulgarian Telecommunication C
8551 282 269 37 Bezeq International
3215 279 2679 89 France Telecom Transpac
5462 275 666 26 Telewest Broadband
6746 267 128 244 Dynamic Network Technologies,
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 1190 2433 221 UniNet S.A. de C.V.
11830 571 299 9 Instituto Costarricense de El
22047 558 270 14 VTR PUNTO NET S.A.
7303 448 220 59 Telecom Argentina Stet-France
16814 426 27 10 NSS, S.A.
11172 415 117 70 Servicios Alestra S.A de C.V
6471 413 85 46 ENTEL CHILE S.A.
10620 403 105 52 TVCABLE BOGOTA
14117 384 25 15 Telefonica del Sur S.A.
20299 300 36 31 NEWCOM AMERICAS
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 463 61 27 LINKdotNET AS number
3741 289 853 223 The Internet Solution
20858 217 34 3 EgyNet
2018 187 222 91 Tertiary Education Network
6713 143 135 11 Itissalat Al-MAGHRIB
33783 134 10 13 EEPAD TISP TELECOM & INTERNET
5536 121 8 16 Internet Egypt Network
29571 119 13 8 Ci Telecom Autonomous system
5713 105 507 83 Telkom SA Ltd
33776 99 6 7 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 2838 3020 115 bellsouth.net, inc.
23577 1640 34 701 Korea Telecom (ATM-MPLS)
4755 1632 387 89 Videsh Sanchar Nigam Ltd. Aut
4323 1428 1030 377 Time Warner Telecom
7018 1407 5978 1006 AT&T WorldNet Services
2386 1394 642 862 AT&T Data Communications Serv
11492 1214 146 45 Cable One
8151 1190 2433 221 UniNet S.A. de C.V.
9583 1166 99 211 Sify Limited
9498 1162 550 61 BHARTI BT INTERNET LTD.
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1632 1543 Videsh Sanchar Nigam Ltd. Aut
11492 1214 1169 Cable One
9498 1162 1101 BHARTI BT INTERNET LTD.
4323 1428 1051 Time Warner Telecom
18566 1043 1033 Covad Communications
8151 1190 969 UniNet S.A. de C.V.
9583 1166 955 Sify Limited
17676 1016 951 Softbank BB Corp.
23577 1640 939 Korea Telecom (ATM-MPLS)
17488 1016 938 Hathway IP Over Cable Interne
Complete listing at http://thyme.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
14780 UNALLOCATED 4.79.181.0/24 10310 Yahoo!
12180 UNALLOCATED 4.79.248.0/24 1239 Sprint
12180 UNALLOCATED 8.10.16.0/24 3549 Global Crossing
12180 UNALLOCATED 8.10.58.0/23 3549 Global Crossing
14779 UNALLOCATED 8.12.144.0/24 10310 Yahoo!
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
22492 UNALLOCATED 12.2.46.0/24 1239 Sprint
15132 UNALLOCATED 12.9.150.0/24 701 UUNET Technologies,
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13632 UNALLOCATED 12.20.55.0/24 6517 Yipes Communications
Complete listing at http://thyme.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.51.159.0/24 7843 Adelphia Corp.
24.54.224.0/19 20001 HoldCo LLC - Road Runner
24.75.160.0/19 7843 Adelphia Corp.
24.75.192.0/18 7843 Adelphia Corp.
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
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 /9:9 /10:16 /11:42 /12:138
/13:279 /14:507 /15:1008 /16:9837 /17:4360 /18:7294
/19:15314 /20:17741 /21:16990 /22:21579 /23:22563 /24:133179
/25:766 /26:908 /27:494 /28:101 /29:9 /30:1
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1200 1214 Cable One
2386 1092 1394 AT&T Data Communications Serv
18566 1024 1043 Covad Communications
9583 1004 1166 Sify Limited
7011 977 1094 Citizens Utilities
4755 970 1632 Videsh Sanchar Nigam Ltd. Aut
6478 910 911 AT&T Worldnet Services
6389 882 2838 bellsouth.net, inc.
9498 836 1162 BHARTI BT INTERNET LTD.
17488 828 1016 Hathway IP Over Cable Interne
Complete listing at http://thyme.apnic.net/current/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:105 12:2004 13:1 15:20 16:3
17:6 18:13 20:35 24:1061 25:1 32:61
33:4 38:415 40:94 41:633 44:2 47:8
52:3 55:3 56:3 57:22 58:517 59:452
60:410 61:980 62:1080 63:1958 64:3460 65:2395
66:3633 67:1154 68:672 69:2145 70:608 71:125
72:1688 73:6 74:942 75:225 76:291 77:628
78:578 79:146 80:889 81:851 82:590 83:364
84:561 85:1002 86:383 87:643 88:323 89:1259
90:11 91:1192 92:274 93:251 96:23 97:14
98:138 99:3 116:603 117:285 118:113 119:388
120:13 121:517 122:745 123:314 124:838 125:1111
128:318 129:199 130:126 131:397 132:65 133:9
134:180 135:32 136:220 137:111 138:147 139:61
140:489 141:96 142:430 143:279 144:346 145:50
146:346 147:142 148:501 149:181 150:128 151:176
152:142 153:121 154:10 155:265 156:175 157:264
158:168 159:221 160:253 161:110 162:209 163:196
164:510 165:445 166:299 167:316 168:606 169:127
170:427 171:28 172:2 189:162 190:1779 192:5769
193:4090 194:3251 195:2393 196:1037 198:3741 199:3236
200:5613 201:1401 202:7566 203:7808 204:3996 205:2124
206:2395 207:2744 208:3261 209:3472 210:2542 211:1043
212:1344 213:1649 214:449 215:48 216:4281 217:1218
218:353 219:407 220:1080 221:396 222:311
End of report
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