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From: Routing Analysis Role Account (no email)
Date: Fri Oct 06 2006 - 14:02:25 EDT
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
For historical data, please see http://thyme.apnic.net.
If you have any comments please contact Philip Smith <>.
Routing Table Report 04:00 +10GMT Sat 07 Oct, 2006
Analysis Summary
----------------
BGP routing table entries examined: 199851
Prefixes after maximum aggregation: 108601
Unique aggregates announced to Internet: 96840
Total ASes present in the Internet Routing Table: 23299
Origin-only ASes present in the Internet Routing Table: 20299
Origin ASes announcing only one prefix: 9754
Transit ASes present in the Internet Routing Table: 3000
Transit-only ASes present in the Internet Routing Table: 74
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 29
Max AS path prepend of ASN (36728) 27
Prefixes from unregistered ASNs in the Routing Table: 4
Unregistered ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1595783692
Equivalent to 95 /8s, 29 /16s and 186 /24s
Percentage of available address space announced: 43.1
Percentage of allocated address space announced: 59.5
Percentage of available address space allocated: 72.3
Total number of prefixes smaller than registry allocations: 100213
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 43780
Total APNIC prefixes after maximum aggregation: 17524
Prefixes being announced from the APNIC address blocks: 41432
Unique aggregates announced from the APNIC address blocks: 18422
APNIC Region origin ASes present in the Internet Routing Table: 2706
APNIC Region origin ASes announcing only one prefix: 752
APNIC Region transit ASes present in the Internet Routing Table: 405
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 262826848
Equivalent to 15 /8s, 170 /16s and 107 /24s
Percentage of available APNIC address space announced: 82.2
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, 121/8, 122/7, 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: 100562
Total ARIN prefixes after maximum aggregation: 59481
Prefixes being announced from the ARIN address blocks: 73893
Unique aggregates announced from the ARIN address blocks: 27924
ARIN Region origin ASes present in the Internet Routing Table: 11040
ARIN Region origin ASes announcing only one prefix: 4206
ARIN Region transit ASes present in the Internet Routing Table: 1021
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 29
Number of ARIN addresses announced to Internet: 303936768
Equivalent to 18 /8s, 29 /16s and 181 /24s
Percentage of available ARIN address space announced: 67.1
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
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: 40684
Total RIPE prefixes after maximum aggregation: 26837
Prefixes being announced from the RIPE address blocks: 37609
Unique aggregates announced from the RIPE address blocks: 25070
RIPE Region origin ASes present in the Internet Routing Table: 8585
RIPE Region origin ASes announcing only one prefix: 4503
RIPE Region transit ASes present in the Internet Routing Table: 1392
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 266816164
Equivalent to 15 /8s, 231 /16s and 74 /24s
Percentage of available RIPE address space announced: 72.3
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
40960-41983
RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 12489
Total LACNIC prefixes after maximum aggregation: 3835
Prefixes being announced from the LACNIC address blocks: 10506
Unique aggregates announced from the LACNIC address blocks: 6205
LACNIC Region origin ASes present in the Internet Routing Table: 730
LACNIC Region origin ASes announcing only one prefix: 246
LACNIC Region transit ASes present in the Internet Routing Table: 126
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 32977664
Equivalent to 1 /8s, 247 /16s and 51 /24s
Percentage of available LACNIC address space announced: 49.1
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: 2332
Total AfriNIC prefixes after maximum aggregation: 924
Prefixes being announced from the AfriNIC address blocks: 1648
Unique aggregates announced from the AfriNIC address blocks: 1085
AfriNIC Region origin ASes present in the Internet Routing Table: 164
AfriNIC Region origin ASes announcing only one prefix: 47
AfriNIC Region transit ASes present in the Internet Routing Table: 27
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 4294656
Equivalent to 0 /8s, 65 /16s and 136 /24s
Percentage of available AfriNIC address space announced: 12.8
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
4134 1241 8174 236 CHINANET-BACKBONE
4755 1002 255 66 Videsh Sanchar Nigam Ltd. Aut
9583 960 109 22 Sify Limited
9498 858 212 72 BHARTI BT INTERNET LTD.
4766 741 4436 307 Korea Telecom (KIX)
1221 607 1780 465 Telstra Pty Ltd
7545 540 124 74 TPG Internet Pty Ltd
17488 534 33 12 Hathway IP Over Cable Interne
17676 499 10933 63 Softbank BB Corp.
18101 458 85 18 Reliance Infocom Ltd Internet
9443 454 111 74 Primus Telecommunications
9942 427 77 127 COMindico Australia
17849 424 31 127 Telecommunications Technology
4802 413 86 150 Wantree Development
4812 410 741 63 China Telecom (Shanghai)
17974 368 129 12 PT TELEKOMUNIKASI INDONESIA
17557 361 30 176 Pakistan Telecom
2907 336 1734 312 SINET Japan
4837 324 3556 140 chinanet IDC center beijing n
10139 324 23 6 Meridian Telekoms
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1520 6225 982 AT&T WorldNet Services
2386 1168 610 742 AT&T Data Communications Serv
4323 1025 783 293 Time Warner Telecom
6197 1023 643 480 BellSouth Network Solutions,
174 967 6824 892 Cogent Communications
18566 966 272 8 Covad Communications
721 959 21909 305 DLA Systems Automation Center
701 952 6742 781 UUNET Technologies, Inc.
1239 834 2763 589 Sprint
11492 752 90 13 Cable One
19262 749 2372 189 Verizon Global Networks
20115 748 672 389 Charter Communications
22773 713 1744 46 Cox Communications, Inc.
209 705 3630 553 Qwest
7011 674 209 427 Citizens Utilities
6478 590 1272 384 AT&T Worldnet Services
852 589 1070 387 Telus Advanced Communications
19916 565 49 54 OLM LLC
855 543 250 74 Canadian Research Network
5668 538 145 18 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 546 1929 425 UUNET - Commercial IP service
3301 310 1184 294 TeliaNet Sweden
3320 299 5013 244 Deutsche Telekom AG
8220 279 455 265 COLT Telecommunications
24863 273 41 30 LINKdotNET AS number
680 251 2041 247 DFN-IP service G-WiN
6746 247 91 225 Dynamic Network Technologies,
3246 229 485 219 Song Networks
8708 220 278 207 Romania Data Systems S.A.
9116 220 134 23 Goldenlines main autonomous s
1257 212 740 168 SWIPnet Swedish IP Network
3215 210 1832 96 France Telecom Transpac
3269 203 2261 73 TELECOM ITALIA
30890 201 18 78 SC Kappa Invexim SRL
8551 200 182 27 Bezeq International
6830 197 879 43 UPC Distribution Services
8866 186 37 15 Bulgarian Telecommunication C
5416 181 12 11 BATELCO-BH
3300 173 171 95 AUCS Communications Services
786 171 1779 171 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 603 1811 224 UniNet S.A. de C.V.
11172 376 99 88 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 303 206 11 VTR PUNTO NET S.A.
11830 281 299 9 Instituto Costarricense de El
6147 263 140 24 Telefonica Del Peru
6471 255 74 30 ENTEL CHILE S.A.
14117 235 15 8 Telefonica del Sur S.A.
7303 205 91 26 Telecom Argentina Stet-France
6503 181 168 84 AVANTEL, S.A.
10481 181 72 8 Prima S.A.
23216 145 19 44 RAMtelecom Telecomunicaciones
21826 144 18 29 INTERCABLE
7910 138 9 18 ANDINET ON LINE
19429 137 83 39 E.T.B.
19169 136 9 21 Telconet
11556 132 96 4 Cable-Wireless Panama
18822 129 8 10 TELEFONICA MANQUEHUE
14522 118 18 9 SatNet S.A.
7738 113 410 20 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 291 803 233 The Internet Solution
8452 172 60 7 TEDATA
6713 145 139 12 Itissalat Al-MAGHRIB
2018 134 297 111 Tertiary Education Network
15475 126 84 4 Nile Online
5536 121 8 18 Internet Egypt Network
24835 116 48 6 RAYA Telecom - Egypt
33783 108 6 3 EEPAD TISP TELECOM & INTERNET
2905 76 157 69 The Internetworking Company o
2561 55 6 2 Egyptian Universities Network
15706 55 12 4 Sudatel Internet Exchange Aut
5713 36 293 32 Telkom SA Ltd
12455 36 6 3 Jambonet Autonomous system
33774 34 7 21 AS Number for Telecom Algeria
23889 27 8 12 MAURITIUS TELECOM
21280 26 4 4 Swift Global Kenya Ltd.Is an
16637 24 19 23 Johnnic e-Ventures
10798 23 1 14 Standard Bank of South Africa
21491 23 17 2 UTL On-line is RF broadband I
8524 22 1 5 AUCEGYPT Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4134 1241 1005 CHINANET-BACKBONE
18566 966 958 Covad Communications
9583 960 938 Sify Limited
4755 1002 936 Videsh Sanchar Nigam Ltd. Aut
9498 858 786 BHARTI BT INTERNET LTD.
11492 752 739 Cable One
4323 1025 732 Time Warner Telecom
22773 713 667 Cox Communications, Inc.
721 959 654 DLA Systems Automation Center
19262 749 560 Verizon Global Networks
6197 1023 543 BellSouth Network Solutions,
17488 534 522 Hathway IP Over Cable Interne
5668 538 520 CenturyTel Internet Holdings,
19916 565 511 OLM LLC
855 543 469 Canadian Research Network
7545 540 466 TPG Internet Pty Ltd
18101 458 440 Reliance Infocom Ltd Internet
17676 499 436 Softbank BB Corp.
4766 741 434 Korea Telecom (KIX)
15270 468 433 PaeTec.net -a division of Pae
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65530 PRIVATE 64.135.249.0/24 6536 MountainNet, Inc.
65530 PRIVATE 64.135.250.0/23 6536 MountainNet, Inc.
65530 PRIVATE 64.135.252.0/22 6536 MountainNet, Inc.
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
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
192.44.0.0/24 5501 Fraunhofer Gesellschaft
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.84.205.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.249.0.0/20 3450 University of Tennessee, Knox
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 /10:13 /11:29 /12:106
/13:214 /14:384 /15:765 /16:9031 /17:3502 /18:5708
/19:12323 /20:13952 /21:12306 /22:15628 /23:17022 /24:107535
/25:441 /26:421 /27:189 /28:66 /29:42 /30:96
/31:0 /32:51
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 949 966 Covad Communications
2386 886 1168 AT&T Data Communications Serv
6197 803 1023 BellSouth Network Solutions,
7018 798 1520 AT&T WorldNet Services
9583 792 960 Sify Limited
11492 740 752 Cable One
7011 581 674 Citizens Utilities
19916 559 565 OLM LLC
4766 550 741 Korea Telecom (KIX)
9498 515 858 BHARTI BT INTERNET LTD.
15270 437 468 PaeTec.net -a division of Pae
4755 433 1002 Videsh Sanchar Nigam Ltd. Aut
855 423 543 Canadian Research Network
5668 420 538 CenturyTel Internet Holdings,
17849 412 424 Telecommunications Technology
1239 407 834 Sprint
18101 390 458 Reliance Infocom Ltd Internet
22773 373 713 Cox Communications, Inc.
33588 371 392 Bresnan Communications, LLC.
17488 354 534 Hathway IP Over Cable Interne
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:53 12:1645 13:1 15:16 16:3
17:3 18:4 20:41 24:822 25:1 32:58
38:258 40:56 41:22 44:3 47:7 52:4
53:1 55:1 56:3 57:25 58:224 59:273
60:220 61:905 62:981 63:1909 64:3145 65:2246
66:3036 67:647 68:650 69:1651 70:394 71:89
72:944 74:84 75:8 80:826 81:696 82:614
83:398 84:407 85:699 86:444 87:578 88:198
89:491 91:3 121:52 122:13 124:412 125:650
128:285 129:229 130:122 131:311 132:35 133:9
134:167 135:51 136:177 137:96 138:130 139:47
140:527 141:134 142:344 143:192 144:237 145:43
146:320 147:137 148:361 149:177 150:114 151:120
152:75 153:121 154:5 155:232 156:160 157:165
158:155 159:171 160:98 161:85 162:216 163:158
164:232 165:218 166:239 167:247 168:488 169:128
170:376 171:11 172:1 190:232 192:5770 193:3497
194:2729 195:2091 196:906 198:3885 199:3321 200:4472
201:967 202:6920 203:7166 204:3922 205:2107 206:2419
207:2958 208:2311 209:3506 210:2178 211:837 212:1355
213:1505 214:373 215:39 216:4061 217:1135 218:341
219:259 220:791 221:383 222:231
End of report
Report Website: http://thyme.apnic.net
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