Routing Table Report 04:00 +10GMT Sun 30 Oct, 2005
Analysis Summary
----------------
BGP routing table entries examined: 173057
Prefixes after maximum aggregation: 98186
Unique aggregates announced to Internet: 84147
Total ASes present in the Internet Routing Table: 20760
Origin-only ASes present in the Internet Routing Table: 18046
Origin ASes announcing only one prefix: 8556
Transit ASes present in the Internet Routing Table: 2714
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: 12
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1453646112
Equivalent to 86 /8s, 164 /16s and 225 /24s
Percentage of available address space announced: 39.2
Percentage of allocated address space announced: 59.1
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 82765
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36178
Total APNIC prefixes after maximum aggregation: 15799
Prefixes being announced from the APNIC address blocks: 33925
Unique aggregates announced from the APNIC address blocks: 16789
APNIC Region origin ASes present in the Internet Routing Table: 2392
APNIC Region origin ASes announcing only one prefix: 699
APNIC Region transit ASes present in the Internet Routing Table: 365
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 204527744
Equivalent to 12 /8s, 48 /16s and 216 /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: 91579
Total ARIN prefixes after maximum aggregation: 55501
Prefixes being announced from the ARIN address blocks: 71588
Unique aggregates announced from the ARIN address blocks: 27163
ARIN Region origin ASes present in the Internet Routing Table: 10276
ARIN Region origin ASes announcing only one prefix: 3797
ARIN Region transit ASes present in the Internet Routing Table: 959
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 273460480
Equivalent to 16 /8s, 76 /16s and 173 /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: 33723
Total RIPE prefixes after maximum aggregation: 22810
Prefixes being announced from the RIPE address blocks: 30740
Unique aggregates announced from the RIPE address blocks: 20525
RIPE Region origin ASes present in the Internet Routing Table: 7240
RIPE Region origin ASes announcing only one prefix: 3811
RIPE Region transit ASes present in the Internet Routing Table: 1206
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 221628608
Equivalent to 13 /8s, 53 /16s and 200 /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: 9764
Total LACNIC prefixes after maximum aggregation: 3253
Prefixes being announced from the LACNIC address blocks: 8062
Unique aggregates announced from the LACNIC address blocks: 4651
LACNIC Region origin ASes present in the Internet Routing Table: 645
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: 22397184
Equivalent to 1 /8s, 85 /16s and 193 /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: 1797
Total AfriNIC prefixes after maximum aggregation: 823
Prefixes being announced from the AfriNIC address blocks: 1123
Unique aggregates announced from the AfriNIC address blocks: 826
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: 2847744
Equivalent to 0 /8s, 43 /16s and 116 /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 1018 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 622 3927 290 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
17974 273 65 16 PT TELEKOMUNIKASI INDONESIA
18101 266 68 19 Reliance Infocom Ltd Internet
703 254 259 210 UUNET - Commercial IP service
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1482 6324 973 AT&T WorldNet Services
4323 1189 705 232 Time Warner Telecom
721 1067 21938 306 DLA Systems Automation Center
174 1050 5847 989 Cogent Communications
701 996 8151 836 UUNET Technologies, Inc.
6197 946 401 494 BellSouth Network Solutions,
2386 925 545 689 AT&T Data Communications Serv
18566 867 240 7 Covad Communications
1239 850 2851 597 Sprint
209 643 3571 508 Qwest
20115 633 515 334 Charter Communications
3602 582 131 109 Sprint Canada, Inc.
19916 563 49 54 OLM LLC
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
7132 468 5092 400 SBC Internet Services
6198 464 576 207 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 604 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 384 641 165 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 91 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 132 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
33774 32 3 22 AS Number for Telecom Algeria
15706 31 8 3 Sudatel Internet Exchange Aut
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 1018 804 CHINANET-BACKBONE
721 1067 761 DLA Systems Automation Center
4755 743 676 Videsh Sanchar Nigam Ltd. Aut
22773 546 519 Cox Communications, Inc.
19916 563 509 OLM LLC
3602 582 473 Sprint Canada, Inc.
5668 484 461 CenturyTel Internet Holdings,
6197 946 452 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
812 368 343 Rogers WAVE
6467 389 341 E.Spire Communications, Inc.
4766 622 332 Korea Telecom (KIX)
9498 387 329 BHARTI BT INTERNET LTD.
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
65001 PRIVATE 69.177.73.128/27 8002 Stealth Communicatio
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
65103 PRIVATE 216.53.126.0/23 7270 Net2Phone Corp.
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 /16:8591 /17:2860 /18:4794
/19:10909 /20:11973 /21:10048 /22:13309 /23:14314 /24:94042
/25:329 /26:278 /27:192 /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 772 946 BellSouth Network Solutions,
7018 718 1482 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
4766 429 622 Korea Telecom (KIX)
5668 389 484 CenturyTel Internet Holdings,
7011 383 443 Citizens Utilities
702 382 604 UUNET - Commercial IP service
1239 362 850 Sprint
11492 358 366 Cable One
6198 329 464 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
701 281 996 UUNET Technologies, Inc.
18302 278 293 SK Global co., Ltd
22773 278 546 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:28 12:1608 13:1 15:11 16:3
17:3 18:3 20:41 24:575 30:2 32:68
38:166 40:54 44:3 47:2 52:4 55:1
56:3 57:36 58:97 59:90 60:147 61:790
62:790 63:1884 64:2937 65:2114 66:2955 67:646
68:650 69:1286 70:216 71:33 72:418 80:650
81:586 82:516 83:309 84:307 85:370 86:152
87:67 125:26 128:160 129:168 130:98 131:296
132:36 133:1 134:148 135:40 136:162 137:67
138:166 139:75 140:470 141:141 142:147 143:142
144:220 145:34 146:298 147:131 148:269 149:198
150:110 151:68 152:112 153:93 154:5 155:143
156:78 157:112 158:151 159:178 160:87 161:76
162:236 163:145 164:190 165:187 166:155 167:255
168:449 169:144 170:311 171:12 190:1 192:5738
193:3323 194:2432 195:1568 196:702 198:3900 199:3244
200:4235 201:410 202:6196 203:6523 204:3799 205:2045
206:2436 207:2833 208:2011 209:3438 210:1726 211:836
212:1245 213:1346 214:310 215:42 216:3855 217:1149
218:213 219:131 220:509 221:298 222:133
End of report