Routing Table Report 00:00 GMT Tue 30 Dec, 2008
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 79036
Prefixes after maximum aggregation: 34870
Deaggregation factor: 2.27
Unique aggregates announced to Internet: 28094
Total ASes present in the Internet Routing Table: 12395
Prefixes per ASN: 6.38
Origin-only ASes present in the Internet Routing Table: 10449
Origin ASes announcing only one prefix: 6083
Transit ASes present in the Internet Routing Table: 1946
Transit-only ASes present in the Internet Routing Table: 467
Average AS path length visible in the Internet Routing Table: 3.1
Max AS path length visible: 18
Max AS path prepend of ASN (12163) 11
Prefixes from unregistered ASNs in the Routing Table: 166
Unregistered ASNs in the Routing Table: 99
Number of 32-bit ASNs allocated by the RIRs: 70
Prefixes from 32-bit ASNs in the Routing Table: 1
Special use prefixes present in the Routing Table: 4
Prefixes being announced from unallocated address space: 36
Number of addresses announced to Internet: 747421572
Equivalent to 44 /8s, 140 /16s and 191 /24s
Percentage of available address space announced: 20.2
Percentage of allocated address space announced: 23.8
Percentage of available address space allocated: 84.6
Percentage of address space in use by end-sites: 75.0
Total number of prefixes smaller than registry allocations: 57720
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 7359
Total APNIC prefixes after maximum aggregation: 1738
APNIC Deaggregation factor: 4.23
Prefixes being announced from the APNIC address blocks: 7250
Unique aggregates announced from the APNIC address blocks: 1940
APNIC Region origin ASes present in the Internet Routing Table: 570
APNIC Prefixes per ASN: 12.72
APNIC Region origin ASes announcing only one prefix: 192
APNIC Region transit ASes present in the Internet Routing Table: 162
Average APNIC Region AS path length visible: 3.4
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 61384192
Equivalent to 3 /8s, 168 /16s and 166 /24s
Percentage of available APNIC address space announced: 12.2
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, 110/8, 111/8, 112/8,
113/8, 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: 52465
Total ARIN prefixes after maximum aggregation: 24605
ARIN Deaggregation factor: 2.13
Prefixes being announced from the ARIN address blocks: 47241
Unique aggregates announced from the ARIN address blocks: 15346
ARIN Region origin ASes present in the Internet Routing Table: 7168
ARIN Prefixes per ASN: 6.59
ARIN Region origin ASes announcing only one prefix: 3772
ARIN Region transit ASes present in the Internet Routing Table: 743
Average ARIN Region AS path length visible: 2.9
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 235761664
Equivalent to 14 /8s, 13 /16s and 112 /24s
Percentage of available ARIN address space announced: 45.3
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, 46080-47103
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, 108/8, 173/8,
174/8, 184/8, 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: 16723
Total RIPE prefixes after maximum aggregation: 7754
RIPE Deaggregation factor: 2.16
Prefixes being announced from the RIPE address blocks: 16457
Unique aggregates announced from the RIPE address blocks: 9334
RIPE Region origin ASes present in the Internet Routing Table: 3849
RIPE Prefixes per ASN: 4.28
RIPE Region origin ASes announcing only one prefix: 2027
RIPE Region transit ASes present in the Internet Routing Table: 909
Average RIPE Region AS path length visible: 3.3
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 158253824
Equivalent to 9 /8s, 110 /16s and 195 /24s
Percentage of available RIPE address space announced: 36.3
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, 47104-49151
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: 376
Total LACNIC prefixes after maximum aggregation: 187
LACNIC Deaggregation factor: 2.01
Prefixes being announced from the LACNIC address blocks: 44
Unique aggregates announced from the LACNIC address blocks: 22
LACNIC Region origin ASes present in the Internet Routing Table: 77
LACNIC Prefixes per ASN: 0.57
LACNIC Region origin ASes announcing only one prefix: 38
LACNIC Region transit ASes present in the Internet Routing Table: 33
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 130304
Equivalent to 0 /8s, 1 /16s and 253 /24s
Percentage of available LACNIC address space announced: 0.1
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: 1947
Total AfriNIC prefixes after maximum aggregation: 446
AfriNIC Deaggregation factor: 4.37
Prefixes being announced from the AfriNIC address blocks: 2391
Unique aggregates announced from the AfriNIC address blocks: 1089
AfriNIC Region origin ASes present in the Internet Routing Table: 170
AfriNIC Prefixes per ASN: 14.06
AfriNIC Region origin ASes announcing only one prefix: 54
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: 15
Number of AfriNIC addresses announced to Internet: 8956544
Equivalent to 0 /8s, 136 /16s and 170 /24s
Percentage of available AfriNIC address space announced: 17.8
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4538 497 544 3 China Education and Research
17488 373 24 2 Hathway IP Over Cable Interne
9829 352 256 3 BSNL National Internet Backbo
4755 300 113 7 Videsh Sanchar Nigam Ltd. Aut
17908 258 49 87 Tata Communications
4134 211 2749 63 CHINANET-BACKBONE
7545 188 48 2 TPG Internet Pty Ltd
9498 155 58 4 BHARTI BT INTERNET LTD.
4766 105 737 10 Korea Telecom (KIX)
17816 104 80 3 Backbone Network of Jiangsu p
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
6389 2938 2442 34 bellsouth.net, inc.
20115 1577 1130 580 Charter Communications
11492 1202 144 10 Cable One
18566 1060 296 10 Covad Communications
6478 1026 199 363 AT&T Worldnet Services
1785 973 347 45 AppliedTheory Corporation
22773 773 1821 24 Cox Communications, Inc.
7011 757 204 457 Citizens Utilities
2386 704 100 597 AT&T Data Communications Serv
3356 583 9137 91 Level 3 Communications, LLC
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
12479 320 320 3 Uni2 Autonomous System
8551 262 259 14 Bezeq International
8452 236 136 2 TEDATA
8877 148 12 2 BOL.BG Autonomous System
25233 145 27 5 Awalnet
3269 139 1981 32 TELECOM ITALIA
9121 136 842 6 TTnet Autonomous System
9155 131 21 3 QualityNet AS number
8866 111 41 11 Bulgarian Telecommunication C
12491 108 21 54 IPPlanet
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
23216 59 3 12 RAMtelecom Telecomunicaciones
10620 30 10 2 TVCABLE BOGOTA
6458 27 7 9 GUATEL
27696 27 1 9 Multidata S.A.
12127 21 2 10 Telefonica de El Salvador
26608 15 4 1 SkyOnline do Brasil Ltda
26210 13 1 6 Latin American and Caribbean
7910 12 1 5 COLDECON
10318 12 16 1 CABLEVISION S.A.
6505 11 18 5 Global One Communicaoes Ltda
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 349 49 42 LINKdotNET AS number
20858 257 34 3 EgyNet
33783 144 10 17 EEPAD TISP TELECOM & INTERNET
33776 114 6 2 Starcomms Nigeria Limited
6713 95 88 3 Itissalat Al-MAGHRIB
29571 76 10 4 Ci Telecom Autonomous system
5536 64 4 1 Internet Egypt Network
29975 41 504 10 Vodacom
33774 35 37 18 AS Number for Telecom Algeria
36915 28 2 1 Africa Online Kenya
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
6389 2938 2442 34 bellsouth.net, inc.
20115 1577 1130 580 Charter Communications
11492 1202 144 10 Cable One
18566 1060 296 10 Covad Communications
6478 1026 199 363 AT&T Worldnet Services
1785 973 347 45 AppliedTheory Corporation
22773 773 1821 24 Cox Communications, Inc.
7011 757 204 457 Citizens Utilities
2386 704 100 597 AT&T Data Communications Serv
3356 583 9137 91 Level 3 Communications, LLC
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
11492 1202 1192 Cable One
18566 1060 1050 Covad Communications
20115 1577 997 Charter Communications
1785 973 928 AppliedTheory Corporation
22773 773 749 Cox Communications, Inc.
6478 1026 663 AT&T Worldnet Services
4538 497 494 China Education and Research
3356 583 492 Level 3 Communications, LLC
6517 497 487 Yipes Communications, Inc.
33588 469 463 Bresnan Communications, LLC.
Complete listing at http://thyme.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
32326 UNALLOCATED 12.40.49.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 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
10.29.246.47/32 286 KPNQwest Backbone AS
10.29.246.48/32 286 KPNQwest Backbone AS
10.29.248.65/32 286 KPNQwest Backbone AS
10.29.248.71/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.75.116.0/22 10796 ServiceCo LLC - Road Runner
24.75.160.0/19 7843 Adelphia Corp.
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
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
63.140.213.0/24 22555 Universal Talkware Corporatio
63.143.251.0/24 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 /8:17 /9:8 /10:6 /11:25 /12:71
/13:121 /14:186 /15:379 /16:1854 /17:1591 /18:2682
/19:5346 /20:8206 /21:6341 /22:8125 /23:8483 /24:35425
/25:37 /26:27 /27:41 /28:29 /29:25 /30:1
/31:0 /32:10
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 1964 2938 bellsouth.net, inc.
11492 1180 1202 Cable One
18566 1041 1060 Covad Communications
6478 1026 1026 AT&T Worldnet Services
1785 873 973 AppliedTheory Corporation
20115 870 1577 Charter Communications
2386 703 704 AT&T Data Communications Serv
7011 688 757 Citizens Utilities
3356 502 583 Level 3 Communications, LLC
6517 485 497 Yipes Communications, Inc.
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:12 5:1 8:176 12:2229 13:2 15:21
16:3 17:5 20:35 24:1123 32:139 38:534
40:96 41:875 43:1 44:2 47:9 52:3
55:3 56:3 57:47 58:568 59:669 60:456
61:1118 62:1150 63:1934 64:3432 65:2441 66:3651
67:1441 68:660 69:2438 70:530 71:174 72:1608
73:7 74:1342 75:194 76:308 77:904 78:517
79:301 80:943 81:842 82:579 83:380 84:594
85:925
End of report