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From: Routing Analysis Role Account (no email)
Date: Fri Jul 07 2006 - 14:02:31 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
If you have any comments please contact Philip Smith <>.
Routing Table Report 04:00 +10GMT Sat 08 Jul, 2006
Analysis Summary
----------------
BGP routing table entries examined: 191740
Prefixes after maximum aggregation: 105525
Unique aggregates announced to Internet: 93774
Total ASes present in the Internet Routing Table: 22613
Origin-only ASes present in the Internet Routing Table: 19679
Origin ASes announcing only one prefix: 9443
Transit ASes present in the Internet Routing Table: 2934
Transit-only ASes present in the Internet Routing Table: 66
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 24
Max AS path prepend of ASN (34527) 16
Prefixes from unregistered ASNs in the Routing Table: 2
Unregistered ASNs in the Routing Table: 2
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1540931304
Equivalent to 91 /8s, 216 /16s and 190 /24s
Percentage of available address space announced: 41.6
Percentage of allocated address space announced: 60.1
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 94814
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 41334
Total APNIC prefixes after maximum aggregation: 16992
Prefixes being announced from the APNIC address blocks: 39038
Unique aggregates announced from the APNIC address blocks: 18380
APNIC Region origin ASes present in the Internet Routing Table: 2619
APNIC Region origin ASes announcing only one prefix: 739
APNIC Region transit ASes present in the Internet Routing Table: 399
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 235934304
Equivalent to 14 /8s, 16 /16s and 18 /24s
Percentage of available APNIC address space announced: 73.8
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: 97821
Total ARIN prefixes after maximum aggregation: 58116
Prefixes being announced from the ARIN address blocks: 71625
Unique aggregates announced from the ARIN address blocks: 27058
ARIN Region origin ASes present in the Internet Routing Table: 10823
ARIN Region origin ASes announcing only one prefix: 4089
ARIN Region transit ASes present in the Internet Routing Table: 992
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 295333632
Equivalent to 17 /8s, 154 /16s and 111 /24s
Percentage of available ARIN address space announced: 76.5
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, 64/5, 72/6, 76/8, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 38397
Total RIPE prefixes after maximum aggregation: 25770
Prefixes being announced from the RIPE address blocks: 35459
Unique aggregates announced from the RIPE address blocks: 23944
RIPE Region origin ASes present in the Internet Routing Table: 8242
RIPE Region origin ASes announcing only one prefix: 4334
RIPE Region transit ASes present in the Internet Routing Table: 1354
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 255785604
Equivalent to 15 /8s, 62 /16s and 250 /24s
Percentage of available RIPE address space announced: 80.2
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, 80/5, 88/6, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 11893
Total LACNIC prefixes after maximum aggregation: 3747
Prefixes being announced from the LACNIC address blocks: 9961
Unique aggregates announced from the LACNIC address blocks: 5631
LACNIC Region origin ASes present in the Internet Routing Table: 706
LACNIC Region origin ASes announcing only one prefix: 237
LACNIC Region transit ASes present in the Internet Routing Table: 131
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 28361472
Equivalent to 1 /8s, 176 /16s and 195 /24s
Percentage of available LACNIC address space announced: 42.3
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: 2293
Total AfriNIC prefixes after maximum aggregation: 900
Prefixes being announced from the AfriNIC address blocks: 1540
Unique aggregates announced from the AfriNIC address blocks: 956
AfriNIC Region origin ASes present in the Internet Routing Table: 157
AfriNIC Region origin ASes announcing only one prefix: 44
AfriNIC Region transit ASes present in the Internet Routing Table: 26
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 11
Number of AfriNIC addresses announced to Internet: 4172800
Equivalent to 0 /8s, 63 /16s and 172 /24s
Percentage of available AfriNIC address space announced: 12.4
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 1245 7478 229 CHINANET-BACKBONE
4755 947 257 74 Videsh Sanchar Nigam Ltd. Aut
9583 908 109 15 Sify Limited
9498 713 211 68 BHARTI BT INTERNET LTD.
4766 689 4435 303 Korea Telecom (KIX)
1221 610 1668 468 Telstra Pty Ltd
7545 547 124 73 TPG Internet Pty Ltd
17488 519 32 17 Hathway IP Over Cable Interne
17676 490 7093 110 Softbank BB Corp.
9443 452 111 83 Primus Telecommunications
18101 422 85 24 Reliance Infocom Ltd Internet
17974 404 129 14 PT TELEKOMUNIKASI INDONESIA
17849 388 28 122 Telecommunications Technology
4802 381 81 168 Wantree Development
17557 381 30 172 Pakistan Telecom
2907 335 1733 311 SINET Japan
9929 330 255 61 China Netcom Corp.
7474 298 211 228 SingTel Optus Pty Ltd
4837 280 3085 123 chinanet IDC center beijing n
10139 278 19 5 Meridian Telekoms
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1482 6262 945 AT&T WorldNet Services
4323 1334 747 266 Time Warner Telecom
721 1028 21998 315 DLA Systems Automation Center
6197 1015 636 477 BellSouth Network Solutions,
174 962 5771 894 Cogent Communications
701 947 6754 780 UUNET Technologies, Inc.
18566 945 272 8 Covad Communications
2386 918 558 710 AT&T Data Communications Serv
1239 848 2793 602 Sprint
19262 723 2188 191 Verizon Global Networks
20115 714 620 382 Charter Communications
209 697 3681 550 Qwest
22773 674 1741 40 Cox Communications, Inc.
11492 654 89 10 Cable One
7011 651 218 413 Citizens Utilities
6198 599 568 236 BellSouth Network Solutions,
852 582 1084 382 Telus Advanced Communications
855 573 247 74 Canadian Research Network
19916 563 49 54 OLM LLC
5668 531 147 23 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 565 1932 444 UUNET - Commercial IP service
3301 316 1187 301 TeliaNet Sweden
3352 304 1639 33 Ibernet, Internet Access Netw
3320 279 3988 235 Deutsche Telekom AG
8220 279 471 265 COLT Telecommunications
680 246 2041 243 DFN-IP service G-WiN
6746 234 89 209 Dynamic Network Technologies,
3246 230 463 220 Song Networks
24863 216 42 11 LINKdotNET AS number
8708 215 276 204 Romania Data Systems S.A.
8551 209 198 29 Bezeq International
30890 205 18 79 SC Kappa Invexim SRL
3215 204 1760 97 France Telecom Transpac
3269 201 2182 72 TELECOM ITALIA
1257 194 741 166 SWIPnet Swedish IP Network
8866 187 37 15 Bulgarian Telecommunication C
6830 175 813 37 UPC Distribution Services
786 169 1778 169 The JANET IP Service
3300 169 171 98 AUCS Communications Services
12479 160 322 5 Uni2 Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 694 1159 222 UniNet S.A. de C.V.
22047 432 206 11 VTR PUNTO NET S.A.
11172 354 113 85 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
6147 267 134 22 Telefonica Del Peru
6471 221 74 28 ENTEL CHILE S.A.
14117 207 13 7 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
6503 180 151 83 AVANTEL, S.A.
7303 177 82 27 Telecom Argentina Stet-France
21826 133 17 23 INTERCABLE
11556 132 80 4 Cable-Wireless Panama
19169 129 8 26 Telconet
19429 129 68 43 E.T.B.
14522 128 18 9 SatNet S.A.
14259 119 10 15 GTD Internet S.A.
23216 114 21 9 RAMtelecom Telecomunicaciones
5639 109 12 9 Telecommunications Services o
6505 109 88 79 Global One Communicaoes Ltda
7738 106 410 20 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 287 803 234 The Internet Solution
8452 168 60 7 TEDATA
6713 154 135 11 Itissalat Al-MAGHRIB
2018 131 314 105 Tertiary Education Network
15475 125 84 4 Nile Online
5536 121 8 18 Internet Egypt Network
24835 116 48 6 RAYA Telecom - Egypt
33783 105 6 2 EEPAD TISP TELECOM & INTERNET
2905 69 139 60 The Internetworking Company o
20928 60 16 3 Noor Advanced Technologies AS
15706 44 8 3 Sudatel Internet Exchange Aut
5713 39 294 35 Telkom SA Ltd
33774 31 7 21 AS Number for Telecom Algeria
16637 25 18 23 Johnnic e-Ventures
10798 23 1 14 Standard Bank of South Africa
12455 23 6 3 Jambonet Autonomous system
21280 23 4 4 Swift Global Kenya Ltd.Is an
23889 23 7 12 MAURITIUS TELECOM
8524 22 1 5 AUCEGYPT Autonomous System
33766 21 2 1 Nyala Communications Pty Ltd
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1334 1068 Time Warner Telecom
4134 1245 1016 CHINANET-BACKBONE
18566 945 937 Covad Communications
9583 908 893 Sify Limited
4755 947 873 Videsh Sanchar Nigam Ltd. Aut
721 1028 713 DLA Systems Automation Center
9498 713 645 BHARTI BT INTERNET LTD.
11492 654 644 Cable One
22773 674 634 Cox Communications, Inc.
6197 1015 538 BellSouth Network Solutions,
19262 723 532 Verizon Global Networks
19916 563 509 OLM LLC
5668 531 508 CenturyTel Internet Holdings,
17488 519 502 Hathway IP Over Cable Interne
855 573 499 Canadian Research Network
7545 547 474 TPG Internet Pty Ltd
8151 694 472 UniNet S.A. de C.V.
3602 525 421 Sprint Canada, Inc.
22047 432 421 VTR PUNTO NET S.A.
15270 440 407 PaeTec.net -a division of Pae
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65128 PRIVATE 193.110.50.0/24 24652 Juniper Networks, Eu
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
198.18.1.0/24 3301 TeliaNet Sweden
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
183.206.196.0/24 2188 FR-RENATER-ASTER
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
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:17 /9:9 /10:10 /11:26 /12:93
/13:202 /14:365 /15:715 /16:8879 /17:3298 /18:5423
/19:11838 /20:13451 /21:11734 /22:14860 /23:16024 /24:103705
/25:385 /26:292 /27:179 /28:67 /29:73 /30:53
/31:0 /32:42
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 928 945 Covad Communications
6197 795 1015 BellSouth Network Solutions,
7018 791 1482 AT&T WorldNet Services
9583 738 908 Sify Limited
4323 648 1334 Time Warner Telecom
11492 642 654 Cable One
2386 637 918 AT&T Data Communications Serv
7011 559 651 Citizens Utilities
19916 557 563 OLM LLC
4766 500 689 Korea Telecom (KIX)
855 447 573 Canadian Research Network
6198 441 599 BellSouth Network Solutions,
9498 415 713 BHARTI BT INTERNET LTD.
5668 414 531 CenturyTel Internet Holdings,
15270 409 440 PaeTec.net -a division of Pae
1239 390 848 Sprint
17849 382 388 Telecommunications Technology
4755 380 947 Videsh Sanchar Nigam Ltd. Aut
6517 373 406 Yipes Communications, Inc.
22773 354 674 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:42 11:1 12:1616 13:1 15:15
16:3 17:3 18:4 20:40 24:776 25:1
32:58 38:231 40:54 41:3 44:3 47:6
52:4 55:1 56:3 57:24 58:192 59:242
60:189 61:866 62:800 63:1885 64:3172 65:2244
66:3120 67:620 68:676 69:1520 70:390 71:85
72:799 74:53 75:1 80:783 81:657 82:635
83:392 84:382 85:565 86:362 87:389 88:110
89:317 121:1 122:2 123:1 124:263 125:544
128:146 129:184 130:119 131:313 132:34 133:8
134:160 135:48 136:178 137:82 138:206 139:53
140:489 141:134 142:384 143:170 144:225 145:40
146:318 147:137 148:342 149:191 150:114 151:93
152:69 153:106 154:5 155:206 156:186 157:145
158:167 159:171 160:91 161:77 162:246 163:159
164:235 165:218 166:173 167:243 168:498 169:128
170:351 171:14 183:1 190:83 192:5732 193:3366
194:2649 195:1952 196:870 198:3959 199:3236 200:4620
201:985 202:6727 203:7054 204:3895 205:2051 206:2424
207:2913 208:2183 209:3396 210:2026 211:713 212:1239
213:1435 214:367 215:41 216:4005 217:1174 218:294
219:226 220:733 221:356 222:189
End of report
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