Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Jun 29 19:00:31 UTC 2007
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 30 Jun, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/06/30/0400
Analysis Summary
----------------
BGP routing table entries examined: 224622
Prefixes after maximum aggregation: 118451
Deaggregation factor: 1.90
Unique aggregates announced to Internet: 109225
Total ASes present in the Internet Routing Table: 25577
Prefixes per ASN: 8.78
Origin-only ASes present in the Internet Routing Table: 22272
Origin ASes announcing only one prefix: 10821
Transit ASes present in the Internet Routing Table: 3305
Transit-only ASes present in the Internet Routing Table: 74
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 22
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 16
Unregistered ASNs in the Routing Table: 20
Prefixes from 32-bit ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1731452128
Equivalent to 103 /8s, 51 /16s and 220 /24s
Percentage of available address space announced: 46.7
Percentage of allocated address space announced: 61.9
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 117910
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 52657
Total APNIC prefixes after maximum aggregation: 20514
APNIC Deaggregation factor: 2.57
Prefixes being announced from the APNIC address blocks: 49562
Unique aggregates announced from the APNIC address blocks: 21739
APNIC Region origin ASes present in the Internet Routing Table: 2996
APNIC Prefixes per ASN: 16.54
APNIC Region origin ASes announcing only one prefix: 810
APNIC Region transit ASes present in the Internet Routing Table: 456
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 301656224
Equivalent to 17 /8s, 250 /16s and 232 /24s
Percentage of available APNIC address space announced: 74.7
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911
APNIC Address Blocks 58/7, 60/7, 116/6, 120/6, 124/7, 126/8, 202/7
210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 107145
Total ARIN prefixes after maximum aggregation: 62315
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 78811
Unique aggregates announced from the ARIN address blocks: 31164
ARIN Region origin ASes present in the Internet Routing Table: 11665
ARIN Prefixes per ASN: 6.76
ARIN Region origin ASes announcing only one prefix: 4489
ARIN Region transit ASes present in the Internet Routing Table: 1062
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 338181440
Equivalent to 20 /8s, 40 /16s and 61 /24s
Percentage of available ARIN address space announced: 74.7
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
ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 96/6, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 46947
Total RIPE prefixes after maximum aggregation: 30348
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 43349
Unique aggregates announced from the RIPE address blocks: 28811
RIPE Region origin ASes present in the Internet Routing Table: 9830
RIPE Prefixes per ASN: 4.41
RIPE Region origin ASes announcing only one prefix: 5203
RIPE Region transit ASes present in the Internet Routing Table: 1570
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 320961472
Equivalent to 19 /8s, 33 /16s and 123 /24s
Percentage of available RIPE address space announced: 79.7
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
40960-44031
RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 92/7, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 15306
Total LACNIC prefixes after maximum aggregation: 4251
LACNIC Deaggregation factor: 3.60
Prefixes being announced from the LACNIC address blocks: 13356
Unique aggregates announced from the LACNIC address blocks: 7547
LACNIC Region origin ASes present in the Internet Routing Table: 817
LACNIC Prefixes per ASN: 16.35
LACNIC Region origin ASes announcing only one prefix: 261
LACNIC Region transit ASes present in the Internet Routing Table: 146
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 40049920
Equivalent to 2 /8s, 99 /16s and 29 /24s
Percentage of available LACNIC address space announced: 59.7
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 2561
Total AfriNIC prefixes after maximum aggregation: 1015
AfriNIC Deaggregation factor: 2.52
Prefixes being announced from the AfriNIC address blocks: 2043
Unique aggregates announced from the AfriNIC address blocks: 1244
AfriNIC Region origin ASes present in the Internet Routing Table: 194
AfriNIC Prefixes per ASN: 10.53
AfriNIC Region origin ASes announcing only one prefix: 58
AfriNIC Region transit ASes present in the Internet Routing Table: 36
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 6196736
Equivalent to 0 /8s, 94 /16s and 142 /24s
Percentage of available AfriNIC address space announced: 18.5
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
4134 1347 10189 282 CHINANET-BACKBONE
4755 1243 382 72 Videsh Sanchar Nigam Ltd. Aut
9583 1107 79 394 Sify Limited
9498 980 469 66 BHARTI BT INTERNET LTD.
4766 789 4927 312 Korea Telecom (KIX)
23577 775 35 703 Korea Telecom (ATM-MPLS)
17488 706 46 49 Hathway IP Over Cable Interne
7545 689 151 110 TPG Internet Pty Ltd
18101 565 117 36 Reliance Infocom Ltd Internet
1221 550 1954 425 Telstra Pty Ltd
4812 517 904 92 China Telecom (Shanghai)
4668 508 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
9443 467 121 77 Primus Telecommunications
4802 411 105 151 Wantree Development
7474 410 218 270 SingTel Optus Pty Ltd
17974 371 130 13 PT TELEKOMUNIKASI INDONESIA
9829 362 258 14 BSNL National Internet Backbo
2907 361 1700 301 SINET Japan
17557 352 41 170 Pakistan Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1474 6087 986 AT&T WorldNet Services
4323 1318 1042 368 Time Warner Telecom
2386 1211 615 752 AT&T Data Communications Serv
6478 1124 368 153 AT&T Worldnet Services
11492 1094 107 23 Cable One
6197 1024 717 510 BellSouth Network Solutions,
18566 1011 288 9 Covad Communications
174 954 6778 865 Cogent Communications
701 951 6597 723 UUNET Technologies, Inc.
7011 849 252 538 Citizens Utilities
1239 810 2734 580 Sprint
20115 798 728 424 Charter Communications
19262 779 2724 202 Verizon Global Networks
209 751 3854 579 Qwest
22773 728 1892 44 Cox Communications, Inc.
5668 614 169 21 CenturyTel Internet Holdings,
7029 602 488 80 Alltel Information Services,
852 579 1089 363 Telus Advanced Communications
855 575 254 73 Canadian Research Network
19916 568 49 51 OLM LLC
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2119 514 1075 136 Telenor Internet Access
702 512 1936 403 UUNET - Commercial IP service
24863 355 56 37 LINKdotNET AS number
3301 310 1455 290 TeliaNet Sweden
3320 305 6034 256 Deutsche Telekom AG
6746 280 129 256 Dynamic Network Technologies,
680 264 2044 255 DFN-IP service G-WiN
3215 254 2376 96 France Telecom Transpac
8220 249 444 241 COLT Telecommunications
8708 248 419 238 Romania Data Systems S.A.
8551 223 213 28 Bezeq International
3269 222 2775 74 TELECOM ITALIA
5089 221 1658 53 NTL Group Limited
3352 219 1864 41 Ibernet, Internet Access Netw
9121 210 1441 24 TTnet Autonomous System
9116 200 136 25 Goldenlines main autonomous s
1257 196 1196 174 SWIPnet Swedish IP Network
3246 195 329 185 Song Networks
12479 191 578 6 Uni2 Autonomous System
3300 186 172 92 AUCS Communications Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 854 1917 211 UniNet S.A. de C.V.
11830 483 299 9 Instituto Costarricense de El
11172 371 116 63 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
22047 313 238 12 VTR PUNTO NET S.A.
7303 300 145 32 Telecom Argentina Stet-France
14117 279 19 15 Telefonica del Sur S.A.
6471 275 74 33 ENTEL CHILE S.A.
11556 231 128 4 Cable-Wireless Panama
6147 225 172 27 Telefonica Del Peru
6503 211 188 84 AVANTEL, S.A.
10620 207 59 14 TVCABLE BOGOTA
23216 195 16 43 RAMtelecom Telecomunicaciones
10481 181 72 8 Prima S.A.
14522 173 27 8 SatNet S.A.
21826 156 27 59 INTERCABLE
7910 155 11 30 ANDINET ON LINE
19169 153 10 31 Telconet
20299 152 23 12 NEWCOM AMERICAS
7738 146 474 22 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 280 867 221 The Internet Solution
8452 226 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 136 301 111 Tertiary Education Network
33783 126 8 11 EEPAD TISP TELECOM & INTERNET
5536 123 8 15 Internet Egypt Network
24835 85 48 6 RAYA Telecom - Egypt
2905 77 174 73 The Internetworking Company o
15475 75 84 4 Nile Online
2561 62 6 2 Egyptian Universities Network
15706 56 12 4 Sudatel Internet Exchange Aut
23889 49 16 14 MAURITIUS TELECOM
5713 45 294 35 Telkom SA Ltd
33774 43 29 24 AS Number for Telecom Algeria
16637 37 21 29 Johnnic e-Ventures
33776 36 2 2 Starcomms Nigeria Limited
8524 32 2 8 AUCEGYPT Autonomous System
12455 32 6 3 Jambonet Autonomous system
21280 28 4 4 Swift Global Kenya Ltd.Is an
10798 24 2 15 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1243 1171 Videsh Sanchar Nigam Ltd. Aut
11492 1094 1071 Cable One
4134 1347 1065 CHINANET-BACKBONE
18566 1011 1002 Covad Communications
6478 1124 971 AT&T Worldnet Services
4323 1318 950 Time Warner Telecom
9498 980 914 BHARTI BT INTERNET LTD.
9583 1107 713 Sify Limited
22773 728 684 Cox Communications, Inc.
17488 706 657 Hathway IP Over Cable Interne
8151 854 643 UniNet S.A. de C.V.
5668 614 593 CenturyTel Internet Holdings,
7545 689 579 TPG Internet Pty Ltd
19262 779 577 Verizon Global Networks
18101 565 529 Reliance Infocom Ltd Internet
6517 560 525 Yipes Communications, Inc.
7029 602 522 Alltel Information Services,
19916 568 517 OLM LLC
15270 551 516 PaeTec.net -a division of Pae
6197 1024 514 BellSouth Network Solutions,
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
43190 UNALLOCATED 77.95.248.0/21 39637 PE Netlogics BV
43065 UNALLOCATED 77.247.112.0/22 8342 Rostelecom Internet
42923 UNALLOCATED 88.199.162.0/24 12968 Crowley Data Poland,
39701 UNALLOCATED 88.204.14.0/24 29047 Stack Ltd. Autonomou
43211 UNALLOCATED 89.45.72.0/21 35002 HERTZA Computers
42935 UNALLOCATED 91.123.208.0/24 5617 TPNET
42842 UNALLOCATED 91.193.176.0/22 12389 JSC Rostelecom
43196 UNALLOCATED 91.194.154.0/23 174 Cogent Communication
42301 UNALLOCATED 193.33.38.0/23 6820 LEIVO Autonomous Sys
42856 UNALLOCATED 193.200.137.0/24 8495 Internet GmbH Autono
43078 UNALLOCATED 193.200.190.0/24 21219 Datacom Autonomous S
43138 UNALLOCATED 193.200.245.0/24 702 UUNET - Commercial I
42452 UNALLOCATED 194.0.129.0/24 8751 Media Sat S.A.
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
22895 UNALLOCATED 216.174.38.0/24 19094 Adelphia Business So
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
7.1.1.0/24 1239 Sprint
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
172.33.1.0/24 7018 AT&T WorldNet Services
192.0.10.0/24 9498 BHARTI BT INTERNET LTD.
192.44.0.0/24 5501 Fraunhofer Gesellschaft
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.153.136.0/21 721 DLA Systems Automation Center
192.172.0.0/19 721 DLA Systems Automation Center
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 /10:15 /11:36 /12:126
/13:252 /14:464 /15:903 /16:9511 /17:4023 /18:6508
/19:13698 /20:15858 /21:14295 /22:18656 /23:19621 /24:118249
/25:792 /26:995 /27:480 /28:76 /29:10 /30:14
/31:0 /32:13
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1114 1124 AT&T Worldnet Services
11492 1085 1094 Cable One
18566 993 1011 Covad Communications
9583 949 1107 Sify Limited
2386 904 1211 AT&T Data Communications Serv
7018 800 1474 AT&T WorldNet Services
6197 777 1024 BellSouth Network Solutions,
23577 761 775 Korea Telecom (ATM-MPLS)
7011 748 849 Citizens Utilities
9498 651 980 BHARTI BT INTERNET LTD.
4755 641 1243 Videsh Sanchar Nigam Ltd. Aut
4766 596 789 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 551 1318 Time Warner Telecom
17488 529 706 Hathway IP Over Cable Interne
6517 526 560 Yipes Communications, Inc.
15270 518 551 PaeTec.net -a division of Pae
4668 498 508 LG-EDS Systems Inc.
18101 480 565 Reliance Infocom Ltd Internet
5668 479 614 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:84 9:1 12:1806 15:18
16:3 17:3 18:11 20:38 24:939 25:1
32:50 33:3 38:330 40:61 41:181 44:2
47:4 52:4 55:3 56:3 57:25 58:424
59:392 60:313 61:992 62:879 63:1972 64:3129
65:2356 66:3295 67:747 68:633 69:1891 70:432
71:107 72:1333 73:2 74:545 75:265 76:73
77:258 78:2 80:813 81:816 82:705 83:374
84:417 85:844 86:343 87:488 88:287 89:878
90:7 91:386 97:6 98:3 116:213 117:57
121:214 122:555 123:120 124:835 125:944 128:290
129:224 130:127 131:366 132:53 133:9 134:195
135:39 136:182 137:82 138:148 139:73 140:480
141:173 142:374 143:248 144:298 145:43 146:321
147:120 148:400 149:144 150:113 151:160 152:93
153:126 154:4 155:254 156:152 157:212 158:157
159:158 160:106 161:92 162:221 163:183 164:440
165:408 166:294 167:287 168:501 169:120 170:406
171:18 172:1 189:62 190:678 192:5767 193:3895
194:3171 195:2244 196:937 198:3825 199:3282 200:4902
201:1074 202:7406 203:7576 204:3961 205:2016 206:2414
207:2834 208:2702 209:3497 210:2465 211:958 212:1307
213:1471 214:403 215:40 216:3997 217:1149 218:360
219:382 220:979 221:412 222:264
End of report
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