[afnog] Weekly Routing Table Report
Routing Table Analysis
cscora at apnic.net
Sat Mar 12 04:12:46 EAT 2005
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
If you have any comments please contact Philip Smith <pfs at cisco.com>.
Routing Table Report 04:00 +10GMT Sat 12 Mar, 2005
Analysis Summary
----------------
BGP routing table entries examined: 157339
Prefixes after maximum aggregation: 92091
Unique aggregates announced to Internet: 75688
Total ASes present in the Internet Routing Table: 19118
Origin-only ASes present in the Internet Routing Table: 16630
Origin ASes announcing only one prefix: 7761
Transit ASes present in the Internet Routing Table: 2488
Transit-only ASes present in the Internet Routing Table: 80
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 21
Prefixes from unregistered ASNs in the Routing Table: 27
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1383016612
Equivalent to 82 /8s, 111 /16s and 40 /24s
Percentage of available address space announced: 37.3
Percentage of allocated address space announced: 59.0
Percentage of available address space allocated: 63.2
Total number of prefixes smaller than registry allocations: 73226
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 31587
Total APNIC prefixes after maximum aggregation: 15168
Prefixes being announced from the APNIC address blocks: 29621
Unique aggregates announced from the APNIC address blocks: 15037
APNIC Region origin ASes present in the Internet Routing Table: 2217
APNIC Region origin ASes announcing only one prefix: 647
APNIC Region transit ASes present in the Internet Routing Table: 330
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 176967616
Equivalent to 10 /8s, 140 /16s and 79 /24s
Percentage of available APNIC address space announced: 65.7
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
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: 87474
Total ARIN prefixes after maximum aggregation: 53196
Prefixes being announced from the ARIN address blocks: 66929
Unique aggregates announced from the ARIN address blocks: 24552
ARIN Region origin ASes present in the Internet Routing Table: 9922
ARIN Region origin ASes announcing only one prefix: 3589
ARIN Region transit ASes present in the Internet Routing Table: 953
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 241091072
Equivalent to 14 /8s, 94 /16s and 194 /24s
Percentage of available ARIN address space announced: 71.9
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
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
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 29974
Total RIPE prefixes after maximum aggregation: 20614
Prefixes being announced from the RIPE address blocks: 26918
Unique aggregates announced from the RIPE address blocks: 17837
RIPE Region origin ASes present in the Internet Routing Table: 6388
RIPE Region origin ASes announcing only one prefix: 3379
RIPE Region transit ASes present in the Internet Routing Table: 1073
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 193948496
Equivalent to 11 /8s, 143 /16s and 107 /24s
Percentage of available RIPE address space announced: 68.0
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
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
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6905
Total LACNIC prefixes after maximum aggregation: 2408
Prefixes being announced from the LACNIC address blocks: 6854
Unique aggregates announced from the LACNIC address blocks: 4019
LACNIC Region origin ASes present in the Internet Routing Table: 421
LACNIC Region origin ASes announcing only one prefix: 122
LACNIC Region transit ASes present in the Internet Routing Table: 81
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 17701376
Equivalent to 1 /8s, 14 /16s and 26 /24s
Percentage of available LACNIC address space announced: 52.8
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1372
Total AfriNIC prefixes after maximum aggregation: 705
Prefixes being announced from the AfriNIC address blocks: 903
Unique aggregates announced from the AfriNIC address blocks: 724
AfriNIC Region origin ASes present in the Internet Routing Table: 96
AfriNIC Region origin ASes announcing only one prefix: 24
AfriNIC Region transit ASes present in the Internet Routing Table: 14
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2181632
Equivalent to 0 /8s, 33 /16s and 74 /24s
Percentage of available AfriNIC address space announced: 13.0
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 888 4720 175 Data Communications Bureau
1221 786 1188 558 Telstra Pty Ltd
9583 610 49 25 Satyam Infoway Ltd.,
4766 587 3416 278 Korea Internet Exchange for "
4755 491 241 103 Videsh Sanchar Nigam Ltd. Aut
7545 475 86 69 TPG Internet Pty Ltd
17676 408 6156 73 XTAGE CORPORATION
9443 374 77 79 Primus Telecommunications
9929 358 175 40 China Netcom Corp.
17557 352 25 155 Pakistan Telecom
2907 348 1839 322 SINET Japan
10036 300 27 273 C&M Communication Co. Ltd.
4808 299 245 160 CHINANET core WAN North
7474 288 283 210 Optus Communications Pty Ltd
4802 282 47 166 Wantree Development
703 262 332 218 UUNET
2764 255 237 203 connect.com.au pty ltd
9498 255 82 54 BHARTI BT INTERNET LTD.
9800 239 390 73 CHINA UNICOM
17974 235 63 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1469 6563 965 AT&T WorldNet Services
721 1120 21755 313 DLA Systems Automation Center
4323 1052 668 220 Time Warner Telecom
701 1027 8273 874 UUNET Technologies, Inc.
1239 909 2871 659 Sprint
174 874 5537 757 PSINet Inc.
6197 874 383 410 BellSouth Network Solutions,
2386 832 498 615 AT&T Data Communications Serv
18566 774 208 6 Covad Communications
209 639 3482 502 Qwest
20115 582 482 303 Charter Communications
3356 579 10863 430 Level 3 Communications, LLC
3561 559 2373 414 Cable & Wireless USA
852 531 1095 400 Telus Advanced Communications
6478 502 832 104 AT&T Worldnet Services
3602 501 121 93 Sprint Canada, Inc.
22773 478 1090 24 Cox Communications, Inc. Atla
6198 467 554 191 BellSouth Network Solutions,
27364 465 43 18 Armstrong Cable Services
5668 459 115 17 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 607 2006 497 UUNET - Commercial IP service
3320 294 2992 229 Deutsche Telekom AG
3301 291 1112 279 TeliaNet Sweden
8220 277 466 271 COLT Internet - International
680 254 2041 239 DFN-IP service G-WiN
3246 228 472 223 Song Networks
8708 223 121 201 Romania Data Systems S.A.
13083 218 51 8 Mannesmann Datenverarbeitung
3215 208 1058 80 France Telecom Transpac
1257 197 710 174 SWIPnet Swedish IP Network
9121 188 235 37 TTnet Autonomous System
5515 177 777 127 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
8866 176 20 18 Bulgarian Telecommunication C
3269 165 1456 72 TELECOM ITALIA
3300 165 185 85 AUCS Communications Services
6746 162 47 143 Dynamic Network Technologies,
719 158 322 100 LANLINK autonomous system
5400 143 282 126 BT Ignite European Backbone
6830 142 529 28 UPC Distribution Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 361 140 71 ImpSat
8151 337 489 142 UniNet S.A. de C.V.
16814 233 14 6 NSS, S.A.
11172 223 99 54 Servicios Alestra S.A de C.V
6147 205 102 20 Telefonica Del Peru
11664 148 19 23 Keytech SA
7303 146 66 30 Telecom Argentina Stet-France
6505 136 90 92 Global One Communicaoes Ltda
14117 118 7 5 Telefonica del Sur S.A.
11992 107 9 31 Integrated Systems
6503 103 145 75 AVANTEL, S.A.
13999 100 52 9 Mega Cable S.A. de C.V.
11556 98 49 4 Cable-Wireless Panama
11311 88 8 23 Sinectis S.A.
6535 87 7 23 Chilesat Servicios Empresari
5639 83 12 9 Telecommunications Services o
10481 80 32 7 Prima S.A.
10292 79 6 18 TELECOMMUNICATIONS OF JAMAICA
15311 77 24 36 Telefonica Empresas
4270 76 18 9 Red de Interconexion Universi
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 635 225 The Internet Solution
5536 114 15 18 Internet Egypt Network
2018 90 295 87 Tertiary Education Network
20928 88 16 2 Noor Advanced Technologies AS
2905 84 267 76 The Internetworking Company o
8452 55 20 5 TEDATA
24835 55 34 6 RAYA Telecom - Egypt
9129 39 3 2 UUNET Kenya
6713 35 54 9 Itissalat Al-MAGHRIB
12455 30 7 4 Jambonet Autonomous system
5713 27 141 24 Telkom SA Ltd
8524 24 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 19 1 11 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
21280 18 2 3 Swift Global Kenya Ltd.Is an
8346 17 10 11 SONATEL-AS Autonomous System
15475 17 84 4 Nile Online
15808 16 1 1 Communication Solutions Ltd i
21491 16 1 3 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1052 832 Time Warner Telecom
721 1120 807 DLA Systems Automation Center
18566 774 768 Covad Communications
4134 888 713 Data Communications Bureau
9583 610 585 Satyam Infoway Ltd.,
6197 874 464 BellSouth Network Solutions,
22773 478 454 Cox Communications, Inc. Atla
27364 465 447 Armstrong Cable Services
5668 459 442 Century Telephone
3602 501 408 Sprint Canada, Inc.
7545 475 406 TPG Internet Pty Ltd
6478 502 398 AT&T Worldnet Services
4755 491 388 Videsh Sanchar Nigam Ltd. Aut
17676 408 335 XTAGE CORPORATION
6467 359 326 E.Spire Communications, Inc.
9929 358 318 China Netcom Corp.
4766 587 309 Korea Internet Exchange for "
9443 374 295 Primus Telecommunications
6140 361 290 ImpSat
20115 582 279 Charter Communications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
25695 UNALLOCATED 64.57.112.0/20 5713 Telkom SA Ltd
65535 PRIVATE 64.111.161.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.162.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.164.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.165.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.167.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.169.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.170.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.171.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.172.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.173.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.174.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.175.0/24 33205 KMC Telecom Solution
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
40439 UNALLOCATED 66.194.101.0/24 30439 Memphis Daily News
64500 RESERVED 85.114.96.0/21 1680 NetVision Ltd.
65503 PRIVATE 193.125.183.0/24 3217 SIMBIRSK
65004 PRIVATE 200.0.113.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.0.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.1.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.2.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.3.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.4.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.5.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.6.0/24 28477 Universidad Autonoma
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
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
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.172.0.0/19 721 DLA Systems Automation Center
192.200.100.0/24 7018 AT&T WorldNet Services
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:8 /11:14 /12:62
/13:148 /14:306 /15:570 /16:8323 /17:2454 /18:4172
/19:10104 /20:10787 /21:8672 /22:11991 /23:13136 /24:85756
/25:264 /26:248 /27:103 /28:51 /29:25 /30:85
/31:0 /32:38
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 759 774 Covad Communications
6197 715 874 BellSouth Network Solutions,
7018 639 1469 AT&T WorldNet Services
2386 588 832 AT&T Data Communications Serv
4323 485 1052 Time Warner Telecom
27364 450 465 Armstrong Cable Services
9583 434 610 Satyam Infoway Ltd.,
4766 403 587 Korea Internet Exchange for "
5668 383 459 Century Telephone
1239 372 909 Sprint
702 369 607 UUNET - Commercial IP service
6198 335 467 BellSouth Network Solutions,
10036 300 300 C&M Communication Co. Ltd.
6517 288 310 Yipes Communications, Inc.
9929 282 358 China Netcom Corp.
6467 270 359 E.Spire Communications, Inc.
11456 263 310 Carolina Online, Inc.
701 246 1027 UUNET Technologies, Inc.
13609 246 290 Choice One Communications Inc
15270 243 262 PaeTec.net -a division of Pae
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1503 13:1 15:9 16:2
17:3 18:4 20:5 24:737 32:64 33:5
38:99 40:55 44:3 47:2 52:3 55:2
56:3 57:24 58:4 59:6 60:21 61:737
62:515 63:1885 64:2609 65:2058 66:2699 67:501
68:506 69:921 70:70 71:5 72:103 80:543
81:534 82:340 83:264 84:130 85:161 128:143
129:159 130:88 131:280 132:35 133:1 134:142
135:32 136:190 137:66 138:157 139:50 140:198
141:102 142:142 143:130 144:176 145:45 146:280
147:98 148:269 149:164 150:97 151:63 152:110
153:85 154:3 155:140 156:69 157:85 158:158
159:168 160:72 161:60 162:202 163:86 164:213
165:160 166:128 167:228 168:401 169:133 170:311
171:9 192:5654 193:3120 194:2291 195:1592 196:634
198:3912 199:3253 200:4011 201:56 202:5298 203:6055
204:3703 205:2015 206:2366 207:2745 208:2086 209:3139
210:1608 211:801 212:1172 213:1264 214:242 215:31
216:3664 217:1107 218:193 219:115 220:370 221:105
222:76
End of report
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