Routing Table Report 04:00 +10GMT Mon 31 Oct, 2005
Analysis Summary
----------------
BGP routing table entries examined: 173528
Prefixes after maximum aggregation: 98279
Unique aggregates announced to Internet: 84131
Total ASes present in the Internet Routing Table: 20774
Origin-only ASes present in the Internet Routing Table: 18056
Origin ASes announcing only one prefix: 8563
Transit ASes present in the Internet Routing Table: 2718
Transit-only ASes present in the Internet Routing Table: 74
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 24
Prefixes from unregistered ASNs in the Routing Table: 10
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1453201952
Equivalent to 86 /8s, 158 /16s and 26 /24s
Percentage of available address space announced: 39.2
Percentage of allocated address space announced: 59.0
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 83218
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36188
Total APNIC prefixes after maximum aggregation: 15806
Prefixes being announced from the APNIC address blocks: 33932
Unique aggregates announced from the APNIC address blocks: 16775
APNIC Region origin ASes present in the Internet Routing Table: 2390
APNIC Region origin ASes announcing only one prefix: 697
APNIC Region transit ASes present in the Internet Routing Table: 366
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 204535424
Equivalent to 12 /8s, 48 /16s and 246 /24s
Percentage of available APNIC address space announced: 75.9
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, 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: 92044
Total ARIN prefixes after maximum aggregation: 55571
Prefixes being announced from the ARIN address blocks: 71717
Unique aggregates announced from the ARIN address blocks: 27165
ARIN Region origin ASes present in the Internet Routing Table: 10290
ARIN Region origin ASes announcing only one prefix: 3803
ARIN Region transit ASes present in the Internet Routing Table: 961
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 273467904
Equivalent to 16 /8s, 76 /16s and 202 /24s
Percentage of available ARIN address space announced: 67.9
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
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/6, 74/7, 76/8,
198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 33734
Total RIPE prefixes after maximum aggregation: 22819
Prefixes being announced from the RIPE address blocks: 30745
Unique aggregates announced from the RIPE address blocks: 20526
RIPE Region origin ASes present in the Internet Routing Table: 7241
RIPE Region origin ASes announcing only one prefix: 3814
RIPE Region transit ASes present in the Internet Routing Table: 1208
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 221629376
Equivalent to 13 /8s, 53 /16s and 203 /24s
Percentage of available RIPE address space announced: 66.1
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
RIPE Address Blocks 62/8, 80/5, 88/6, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 9748
Total LACNIC prefixes after maximum aggregation: 3259
Prefixes being announced from the LACNIC address blocks: 8049
Unique aggregates announced from the LACNIC address blocks: 4647
LACNIC Region origin ASes present in the Internet Routing Table: 644
LACNIC Region origin ASes announcing only one prefix: 207
LACNIC Region transit ASes present in the Internet Routing Table: 124
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 22388480
Equivalent to 1 /8s, 85 /16s and 159 /24s
Percentage of available LACNIC address space announced: 33.4
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: 1800
Total AfriNIC prefixes after maximum aggregation: 824
Prefixes being announced from the AfriNIC address blocks: 1124
Unique aggregates announced from the AfriNIC address blocks: 827
AfriNIC Region origin ASes present in the Internet Routing Table: 141
AfriNIC Region origin ASes announcing only one prefix: 42
AfriNIC Region transit ASes present in the Internet Routing Table: 18
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2848000
Equivalent to 0 /8s, 43 /16s and 117 /24s
Percentage of available AfriNIC address space announced: 8.5
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 1010 6318 214 CHINANET-BACKBONE
9583 817 77 12 Sify Limited
1221 752 1327 516 Telstra Pty Ltd
4755 743 259 67 Videsh Sanchar Nigam Ltd. Aut
4766 623 3927 291 Korea Telecom (KIX)
7545 512 108 71 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
9443 392 87 78 Primus Telecommunications
9498 387 211 58 BHARTI BT INTERNET LTD.
17488 366 22 10 Hathway IP Over Cable Interne
2907 339 1763 316 SINET Japan
17557 333 25 163 Pakistan Telecom
7474 331 258 227 SingTel Optus Pty Ltd
4802 329 72 154 Wantree Development
9929 327 216 45 China Netcom Corp.
18302 293 109 170 SK Global co., Ltd
9837 275 79 176 Powertel Ltd
18101 267 68 19 Reliance Infocom Ltd Internet
17974 261 65 16 PT TELEKOMUNIKASI INDONESIA
703 254 259 210 UUNET - Commercial IP service
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1485 6324 976 AT&T WorldNet Services
4323 1189 705 232 Time Warner Telecom
174 1046 5846 986 Cogent Communications
721 1013 21935 299 DLA Systems Automation Center
701 1000 8152 840 UUNET Technologies, Inc.
6197 950 403 491 BellSouth Network Solutions,
2386 925 545 689 AT&T Data Communications Serv
18566 867 240 7 Covad Communications
1239 850 2851 598 Sprint
209 645 3572 510 Qwest
20115 633 515 334 Charter Communications
3602 582 131 109 Sprint Canada, Inc.
19916 563 49 54 OLM LLC
855 554 247 64 Canadian Research Network
22773 546 1352 27 Cox Communications, Inc.
3356 529 10638 405 Level 3 Communications, LLC
19262 520 1511 139 Verizon Global Networks
5668 484 147 23 CenturyTel Internet Holdings,
3561 476 2408 403 Savvis
6198 470 576 207 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 603 1956 476 UUNET - Commercial IP service
3301 305 1085 291 TeliaNet Sweden
3320 286 3231 241 Deutsche Telekom AG
8220 270 475 265 COLT Telecommunications
680 244 2040 239 DFN-IP service G-WiN
8708 238 274 223 Romania Data Systems S.A.
3246 227 475 220 Song Networks
6746 197 51 169 Dynamic Network Technologies,
1257 190 712 168 SWIPnet Swedish IP Network
5515 182 840 128 Sonera Solution Autonomous Sy
3269 181 1734 69 TELECOM ITALIA
786 175 1795 175 The JANET IP Service
5400 174 318 144 BT Ignite European Backbone
6830 161 669 33 UPC Distribution Services
3300 160 170 92 AUCS Communications Services
8866 160 37 9 Bulgarian Telecommunication C
25186 151 227 106 France Telecom Transpac's Tra
3215 143 1237 78 France Telecom Transpac
24863 142 37 6 LINKdotNET AS number
3352 137 1384 33 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 381 640 164 UniNet S.A. de C.V.
16814 297 18 7 NSS, S.A.
11172 279 88 68 Servicios Alestra S.A de C.V
11664 199 22 13 Keytech SA
19632 196 14 5 Metropolis Intercom S.A.
14117 184 11 6 Telefonica del Sur S.A.
22047 170 128 7 VTR PUNTO NET S.A.
6147 161 118 21 Telefonica Del Peru
7303 143 68 20 Telecom Argentina Stet-France
11556 133 64 3 Cable-Wireless Panama
19169 123 8 25 Telconet
6505 121 89 85 Global One Communicaoes Ltda
10481 121 48 8 Prima S.A.
13999 121 52 9 Mega Cable S.A. de C.V.
18822 112 7 13 TELEFONICA MANQUEHUE
5639 111 12 9 Telecommunications Services o
21826 111 14 19 INTERCABLE
6503 108 147 75 AVANTEL, S.A.
11311 99 8 10 Sinectis S.A.
23216 92 23 12 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 708 227 The Internet Solution
8452 135 44 7 TEDATA
5536 123 8 12 Internet Egypt Network
2018 94 295 85 Tertiary Education Network
15475 82 84 4 Nile Online
2905 78 211 71 The Internetworking Company o
6713 71 71 10 Itissalat Al-MAGHRIB
20928 61 16 2 Noor Advanced Technologies AS
24835 58 34 6 RAYA Telecom - Egypt
5713 37 149 33 Telkom SA Ltd
12455 35 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 31 3 22 AS Number for Telecom Algeria
16637 24 10 21 Johnnic e-Ventures
8524 23 1 4 AUCEGYPT Autonomous System
10798 22 1 13 Standard Bank of South Africa
21280 21 4 4 Swift Global Kenya Ltd.Is an
23889 19 5 9 MAURITIUS TELECOM
12258 17 3 11 Vodacom Internet Company
15804 17 2 1 AS of The Way Out Internet So
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1189 957 Time Warner Telecom
18566 867 860 Covad Communications
9583 817 805 Sify Limited
4134 1010 796 CHINANET-BACKBONE
721 1013 714 DLA Systems Automation Center
4755 743 676 Videsh Sanchar Nigam Ltd. Aut
22773 546 519 Cox Communications, Inc.
19916 563 509 OLM LLC
855 554 490 Canadian Research Network
3602 582 473 Sprint Canada, Inc.
5668 484 461 CenturyTel Internet Holdings,
6197 950 459 BellSouth Network Solutions,
7545 512 441 TPG Internet Pty Ltd
19262 520 381 Verizon Global Networks
17676 470 370 Softbank BB Corp.
17488 366 356 Hathway IP Over Cable Interne
11492 366 355 Cable One
6467 397 349 E.Spire Communications, Inc.
812 368 343 Rogers WAVE
4766 623 332 Korea Telecom (KIX)
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65003 PRIVATE 57.250.244.0/24 13879 SITA-EQUANT
65002 PRIVATE 64.119.148.0/22 19406 Towerstream
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
64826 PRIVATE 64.200.255.0/24 7911 Williams Communicati
64643 PRIVATE 140.253.192.0/20 24434 James Cook Universit
65205 PRIVATE 152.163.5.0/24 2056 America Online
64512 PRIVATE 170.51.242.0/24 19037 CTI Compania de Tele
65111 PRIVATE 194.165.131.0/24 8376 GO-JOR Autonomous Sy
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
18428 UNALLOCATED 203.91.0.0/24 9505 Taiwan Internet Gate
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
192.43.230.0/24 7575 Australian Academic and Rease
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
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
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 /9:5 /10:8 /11:18 /12:79
/13:183 /14:337 /15:654 /16:8587 /17:2858 /18:4802
/19:10915 /20:11999 /21:10073 /22:13346 /23:14407 /24:94323
/25:330 /26:279 /27:191 /28:33 /29:11 /30:39
/31:3 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 851 867 Covad Communications
6197 775 950 BellSouth Network Solutions,
7018 720 1485 AT&T WorldNet Services
9583 640 817 Sify Limited
2386 638 925 AT&T Data Communications Serv
4323 567 1189 Time Warner Telecom
19916 557 563 OLM LLC
855 434 554 Canadian Research Network
4766 429 623 Korea Telecom (KIX)
5668 389 484 CenturyTel Internet Holdings,
7011 383 443 Citizens Utilities
702 381 603 UUNET - Commercial IP service
1239 361 850 Sprint
11492 358 366 Cable One
6198 334 470 BellSouth Network Solutions,
6517 322 348 Yipes Communications, Inc.
15270 316 343 PaeTec.net -a division of Pae
13609 288 329 Choice One Communications Inc
701 281 1000 UUNET Technologies, Inc.
18302 278 293 SK Global co., Ltd
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:30 12:1609 13:1 15:11 16:3
17:3 18:3 20:41 24:575 30:2 32:68
38:167 40:54 44:3 47:2 52:4 55:1
56:3 57:36 58:97 59:90 60:147 61:784
62:790 63:1888 64:2945 65:2115 66:2973 67:647
68:654 69:1286 70:216 71:33 72:417 80:652
81:589 82:516 83:309 84:307 85:367 86:152
87:68 125:26 128:156 129:168 130:98 131:290
132:36 133:1 134:148 135:40 136:162 137:67
138:156 139:70 140:470 141:141 142:401 143:142
144:220 145:34 146:298 147:131 148:269 149:198
150:108 151:68 152:112 153:93 154:5 155:136
156:79 157:113 158:150 159:178 160:87 161:76
162:235 163:145 164:190 165:187 166:155 167:255
168:455 169:144 170:311 171:12 190:1 192:5719
193:3324 194:2429 195:1569 196:703 198:3899 199:3215
200:4230 201:410 202:6197 203:6516 204:3817 205:2048
206:2447 207:2847 208:2021 209:3447 210:1723 211:839
212:1247 213:1343 214:312 215:39 216:3863 217:1153
218:219 219:131 220:509 221:297 222:132
End of report
