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[bgp-stats] Routing Table Report - Oregon IX view
Routing Table Report 00:00 GMT Tue 25 Mar, 2008
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/oix-data/2008/03/25
Analysis Summary
----------------
BGP routing table entries examined: 255554
Prefixes after maximum aggregation: 126665
Deaggregation factor: 2.02
Unique aggregates announced to Internet: 121459
Total ASes present in the Internet Routing Table: 27739
Prefixes per ASN: 9.21
Origin-only ASes present in the Internet Routing Table: 24148
Origin ASes announcing only one prefix: 11172
Transit ASes present in the Internet Routing Table: 3591
Transit-only ASes present in the Internet Routing Table: 71
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 26
Max AS path prepend of ASN (21491) 15
Prefixes from unregistered ASNs in the Routing Table: 26243
Unregistered ASNs in the Routing Table: 1926
Number of 32-bit ASNs allocated by the RIRs: 46
Prefixes from 32-bit ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 894
Number of addresses announced to Internet: 1850269737
Equivalent to 110 /8s, 72 /16s and 224 /24s
Percentage of available address space announced: 49.9
Percentage of allocated address space announced: 61.3
Percentage of available address space allocated: 81.4
Percentage of address space in use by end-sites: 71.0
Total number of prefixes smaller than registry allocations: 121613
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 44172
Total APNIC prefixes after maximum aggregation: 13346
APNIC Deaggregation factor: 3.31
Prefixes being announced from the APNIC address blocks: 56663
Unique aggregates announced from the APNIC address blocks: 23141
APNIC Region origin ASes present in the Internet Routing Table: 1910
APNIC Prefixes per ASN: 29.67
APNIC Region origin ASes announcing only one prefix: 544
APNIC Region transit ASes present in the Internet Routing Table: 352
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 336421936
Equivalent to 20 /8s, 13 /16s and 100 /24s
Percentage of available APNIC address space announced: 77.1
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
APNIC Address Blocks 58/8, 59/8, 60/8, 61/8, 114/8, 115/8, 116/8,
117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8,
124/8, 125/8, 126/8, 202/8, 203/8, 210/8, 211/8,
218/8, 219/8, 220/8, 221/8, 222/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 108101
Total ARIN prefixes after maximum aggregation: 59042
ARIN Deaggregation factor: 1.83
Prefixes being announced from the ARIN address blocks: 86633
Unique aggregates announced from the ARIN address blocks: 33950
ARIN Region origin ASes present in the Internet Routing Table: 11660
ARIN Prefixes per ASN: 7.43
ARIN Region origin ASes announcing only one prefix: 4511
ARIN Region transit ASes present in the Internet Routing Table: 1073
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 362405152
Equivalent to 21 /8s, 153 /16s and 221 /24s
Percentage of available ARIN address space announced: 74.5
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, 64/8, 65/8, 66/8, 67/8, 68/8,
69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8,
76/8, 96/8, 97/8, 98/8, 99/8, 173/8, 174/8,
199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8,
216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 54128
Total RIPE prefixes after maximum aggregation: 33161
RIPE Deaggregation factor: 1.63
Prefixes being announced from the RIPE address blocks: 49668
Unique aggregates announced from the RIPE address blocks: 32603
RIPE Region origin ASes present in the Internet Routing Table: 11080
RIPE Prefixes per ASN: 4.48
RIPE Region origin ASes announcing only one prefix: 5758
RIPE Region transit ASes present in the Internet Routing Table: 1675
Average RIPE Region AS path length visible: 3.8
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 348140553
Equivalent to 20 /8s, 192 /16s and 52 /24s
Percentage of available RIPE address space announced: 79.8
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
40960-45055
RIPE Address Blocks 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 193/8,
194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 19251
Total LACNIC prefixes after maximum aggregation: 4776
LACNIC Deaggregation factor: 4.03
Prefixes being announced from the LACNIC address blocks: 17615
Unique aggregates announced from the LACNIC address blocks: 9570
LACNIC Region origin ASes present in the Internet Routing Table: 877
LACNIC Prefixes per ASN: 20.09
LACNIC Region origin ASes announcing only one prefix: 277
LACNIC Region transit ASes present in the Internet Routing Table: 154
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 26
Number of LACNIC addresses announced to Internet: 49804928
Equivalent to 2 /8s, 247 /16s and 246 /24s
Percentage of available LACNIC address space announced: 49.5
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 186/8, 187/8, 189/8, 190/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 3660
Total AfriNIC prefixes after maximum aggregation: 1165
AfriNIC Deaggregation factor: 3.14
Prefixes being announced from the AfriNIC address blocks: 4054
Unique aggregates announced from the AfriNIC address blocks: 1806
AfriNIC Region origin ASes present in the Internet Routing Table: 235
AfriNIC Prefixes per ASN: 17.25
AfriNIC Region origin ASes announcing only one prefix: 82
AfriNIC Region transit ASes present in the Internet Routing Table: 45
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 10147840
Equivalent to 0 /8s, 154 /16s and 216 /24s
Percentage of available AfriNIC address space announced: 30.2
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
4755 1613 386 85 Videsh Sanchar Nigam Ltd. Aut
4538 1549 3102 39 China Education and Research
9583 1150 140 16 Sify Limited
9498 1120 550 63 BHARTI BT INTERNET LTD.
17488 1034 66 80 Hathway IP Over Cable Interne
4134 855 12473 317 CHINANET-BACKBONE
4766 850 6005 340 Korea Telecom (KIX)
18101 671 126 50 Reliance Infocom Ltd Internet
1221 594 1951 429 Telstra Pty Ltd
9829 594 449 11 BSNL National Internet Backbo
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1420 10029 995 AT&T WorldNet Services
2386 1392 643 859 AT&T Data Communications Serv
4323 1387 1028 364 Time Warner Telecom
11492 1216 146 23 Cable One
7011 1080 314 616 Citizens Utilities
18566 1046 296 10 Covad Communications
20115 1039 830 496 Charter Communications
1785 1008 479 107 AppliedTheory Corporation
6197 989 728 477 BellSouth Network Solutions,
174 966 6835 813 Cogent Communications
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3292 399 1776 360 TDC Tele Danmark
8452 357 188 7 TEDATA
3301 341 1459 310 TeliaNet Sweden
3320 322 7045 267 Deutsche Telekom AG
5462 300 666 27 Telewest Broadband
8866 293 78 24 Bulgarian Telecommunication C
3215 277 2655 91 France Telecom Transpac
6746 263 127 241 Dynamic Network Technologies,
1273 262 288 104 Cable & Wireless Deutschland
680 259 2046 258 DFN-IP service G-WiN
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1183 2417 218 UniNet S.A. de C.V.
11830 556 299 9 Instituto Costarricense de El
7303 451 220 59 Telecom Argentina Stet-France
16814 426 27 10 NSS, S.A.
11172 406 116 68 Servicios Alestra S.A de C.V
6471 398 85 40 ENTEL CHILE S.A.
10620 392 103 51 TVCABLE BOGOTA
14117 352 25 15 Telefonica del Sur S.A.
22047 322 270 14 VTR PUNTO NET S.A.
10481 310 152 10 Prima S.A.
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 450 60 27 LINKdotNET AS number
3741 295 869 227 The Internet Solution
2018 255 265 119 Tertiary Education Network
20858 216 34 3 EgyNet
6713 144 135 11 Itissalat Al-MAGHRIB
33783 130 9 16 EEPAD TISP TELECOM & INTERNET
5536 121 8 16 Internet Egypt Network
33776 95 6 15 Starcomms Nigeria Limited
24835 89 48 7 RAYA Telecom - Egypt
2905 83 176 74 The Internetworking Company o
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
23577 1886 35 801 Korea Telecom (ATM-MPLS)
6389 1774 2992 85 bellsouth.net, inc.
4755 1613 386 85 Videsh Sanchar Nigam Ltd. Aut
4538 1549 3102 39 China Education and Research
7018 1420 10029 995 AT&T WorldNet Services
2386 1392 643 859 AT&T Data Communications Serv
4323 1387 1028 364 Time Warner Telecom
11492 1216 146 23 Cable One
8151 1183 2417 218 UniNet S.A. de C.V.
9583 1150 140 16 Sify Limited
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 1774 1689 bellsouth.net, inc.
4755 1613 1528 Videsh Sanchar Nigam Ltd. Aut
4538 1549 1510 China Education and Research
11492 1216 1193 Cable One
9583 1150 1134 Sify Limited
9498 1120 1057 BHARTI BT INTERNET LTD.
18566 1046 1036 Covad Communications
4323 1387 1023 Time Warner Telecom
8151 1183 965 UniNet S.A. de C.V.
17488 1034 954 Hathway IP Over Cable Interne
Complete listing at http://thyme.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
14780 UNALLOCATED 4.79.181.0/24 10310 Yahoo!
12180 UNALLOCATED 4.79.248.0/24 3561 Savvis
11096 UNALLOCATED 8.6.245.0/24 20080 Florida Internationa
26478 UNALLOCATED 8.7.228.0/24 6461 AboveNet Communicati
12180 UNALLOCATED 8.10.16.0/24 3549 Global Crossing
12180 UNALLOCATED 8.10.58.0/23 3549 Global Crossing
14779 UNALLOCATED 8.12.144.0/24 10310 Yahoo!
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
22492 UNALLOCATED 12.2.46.0/24 7018 AT&T WorldNet Servic
14984 UNALLOCATED 12.2.192.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
172.31.0.0/16 194 University Corporation for At
192.0.2.0/24 2854 RoSprint AS (Global One Russi
Complete listing at http://thyme.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.51.159.0/24 7843 Adelphia Corp.
24.54.224.0/19 20001 HoldCo LLC - Road Runner
24.75.160.0/19 19548 Adelphia Business Solutions
24.75.192.0/18 19548 Adelphia Business Solutions
24.142.40.0/21 7018 AT&T WorldNet Services
24.142.160.0/19 7018 AT&T WorldNet Services
24.246.0.0/17 7018 AT&T WorldNet Services
24.246.128.0/18 7018 AT&T WorldNet Services
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
63.140.213.0/24 22555 Universal Talkware Corporatio
Complete listing at http://thyme.apnic.net/rviews/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:9 /10:16 /11:41 /12:138
/13:282 /14:506 /15:1007 /16:9909 /17:4388 /18:7449
/19:15610 /20:18576 /21:16994 /22:21554 /23:22747 /24:132878
/25:935 /26:1070 /27:572 /28:290 /29:221 /30:263
/31:0 /32:80
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1202 1216 Cable One
2386 1093 1392 AT&T Data Communications Serv
18566 1027 1046 Covad Communications
9583 986 1150 Sify Limited
7011 962 1080 Citizens Utilities
4755 960 1613 Videsh Sanchar Nigam Ltd. Aut
6478 935 936 AT&T Worldnet Services
23577 934 1886 Korea Telecom (ATM-MPLS)
17488 849 1034 Hathway IP Over Cable Interne
9498 797 1120 BHARTI BT INTERNET LTD.
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:103 11:1 12:2012 13:2 15:21
16:3 17:6 18:13 20:35 24:1047 25:1
32:184 33:4 38:409 40:95 41:612 43:6
44:2 47:8 52:3 55:3 56:3 57:44
58:519 59:428 60:426 61:995 62:1140 63:1974
64:3424 65:2429 66:3694 67:1081 68:661 69:2119
70:517 71:140 72:1511 73:6 74:896 75:224
76:292 77:696 78:549 79:119 80:897 81:833
82:633 83:375 84:552 85:940 86:430 87:628
88:310 89:1208 90:12 91:1135 92:237 93:152
96:18 97:16 98:101 99:3 116:555 117:276
118:79 119:354 121:406 122:725 123:306 124:803
125:1131 128:320 129:202 130:124 131:406 132:67
133:9 134:188 135:32 136:222 137:123 138:154
139:98 140:485 141:109 142:384 143:279 144:348
145:54 146:333 147:131 148:495 149:182 150:123
151:161 152:144 153:127 154:12 155:264 156:207
157:254 158:167 159:222 160:265 161:113 162:206
163:196 164:572 165:436 166:306 167:313 168:595
169:131 170:424 171:28 172:3 189:155 190:1544
192:5786 193:4112 194:3328 195:2473 196:1117 198:3854
199:3236 200:5502 201:1309 202:7521 203:7856 204:4037
205:2092 206:2477 207:2806 208:3263 209:3607 210:2524
211:1075 212:1330 213:1608 214:456 215:48 216:4295
217:1229 218:356 219:509 220:1055 221:409 222:314
End of report
