Routing Table Report 00:00 GMT Wed 11 Feb, 2009
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: 80613
Prefixes after maximum aggregation: 35650
Deaggregation factor: 2.26
Unique aggregates announced to Internet: 29300
Total ASes present in the Internet Routing Table: 12625
Prefixes per ASN: 6.39
Origin-only ASes present in the Internet Routing Table: 10637
Origin ASes announcing only one prefix: 6165
Transit ASes present in the Internet Routing Table: 1988
Transit-only ASes present in the Internet Routing Table: 445
Average AS path length visible in the Internet Routing Table: 3.2
Max AS path length visible: 21
Max AS path prepend of ASN (12445) 18
Prefixes from unregistered ASNs in the Routing Table: 180
Unregistered ASNs in the Routing Table: 109
Number of 32-bit ASNs allocated by the RIRs: 97
Prefixes from 32-bit ASNs in the Routing Table: 1
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 54
Number of addresses announced to Internet: 770876290
Equivalent to 45 /8s, 242 /16s and 163 /24s
Percentage of available address space announced: 20.8
Percentage of allocated address space announced: 24.3
Percentage of available address space allocated: 85.5
Percentage of address space in use by end-sites: 75.6
Total number of prefixes smaller than registry allocations: 58817
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 6913
Total APNIC prefixes after maximum aggregation: 1671
APNIC Deaggregation factor: 4.14
Prefixes being announced from the APNIC address blocks: 6797
Unique aggregates announced from the APNIC address blocks: 1969
APNIC Region origin ASes present in the Internet Routing Table: 575
APNIC Prefixes per ASN: 11.82
APNIC Region origin ASes announcing only one prefix: 202
APNIC Region transit ASes present in the Internet Routing Table: 161
Average APNIC Region AS path length visible: 3.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 61409280
Equivalent to 3 /8s, 169 /16s and 8 /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: 52154
Total ARIN prefixes after maximum aggregation: 24636
ARIN Deaggregation factor: 2.12
Prefixes being announced from the ARIN address blocks: 47272
Unique aggregates announced from the ARIN address blocks: 15408
ARIN Region origin ASes present in the Internet Routing Table: 7192
ARIN Prefixes per ASN: 6.57
ARIN Region origin ASes announcing only one prefix: 3771
ARIN Region transit ASes present in the Internet Routing Table: 731
Average ARIN Region AS path length visible: 2.9
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 234871808
Equivalent to 13 /8s, 255 /16s and 220 /24s
Percentage of available ARIN address space announced: 45.2
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: 18836
Total RIPE prefixes after maximum aggregation: 8564
RIPE Deaggregation factor: 2.20
Prefixes being announced from the RIPE address blocks: 17821
Unique aggregates announced from the RIPE address blocks: 10363
RIPE Region origin ASes present in the Internet Routing Table: 4072
RIPE Prefixes per ASN: 4.38
RIPE Region origin ASes announcing only one prefix: 2104
RIPE Region transit ASes present in the Internet Routing Table: 962
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 182283008
Equivalent to 10 /8s, 221 /16s and 107 /24s
Percentage of available RIPE address space announced: 38.8
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, 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, 109/8,
178/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 328
Total LACNIC prefixes after maximum aggregation: 185
LACNIC Deaggregation factor: 1.77
Prefixes being announced from the LACNIC address blocks: 45
Unique aggregates announced from the LACNIC address blocks: 16
LACNIC Region origin ASes present in the Internet Routing Table: 76
LACNIC Prefixes per ASN: 0.59
LACNIC Region origin ASes announcing only one prefix: 37
LACNIC Region transit ASes present in the Internet Routing Table: 35
Average LACNIC Region AS path length visible: 3.6
Max LACNIC Region AS path length visible: 9
Number of LACNIC addresses announced to Internet: 128768
Equivalent to 0 /8s, 1 /16s and 247 /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: 2218
Total AfriNIC prefixes after maximum aggregation: 458
AfriNIC Deaggregation factor: 4.84
Prefixes being announced from the AfriNIC address blocks: 3459
Unique aggregates announced from the AfriNIC address blocks: 1176
AfriNIC Region origin ASes present in the Internet Routing Table: 175
AfriNIC Prefixes per ASN: 19.77
AfriNIC Region origin ASes announcing only one prefix: 51
AfriNIC Region transit ASes present in the Internet Routing Table: 44
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 9212288
Equivalent to 0 /8s, 140 /16s and 145 /24s
Percentage of available AfriNIC address space announced: 27.5
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
17488 373 24 2 Hathway IP Over Cable Interne
9829 355 256 3 BSNL National Internet Backbo
4755 297 54 24 Videsh Sanchar Nigam Ltd. Aut
17908 269 56 14 Tata Communications
7545 200 48 2 TPG Internet Pty Ltd
4134 192 2749 63 CHINANET-BACKBONE
9498 152 58 4 BHARTI BT INTERNET LTD.
4766 105 738 11 Korea Telecom (KIX)
18049 99 13 5 TAIWAN Network Information Ce
17676 98 1559 15 Softbank BB Corp.
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 2928 2442 34 bellsouth.net, inc.
20115 1348 1136 568 Charter Communications
11492 1185 144 11 Cable One
18566 1061 296 10 Covad Communications
1785 1019 347 31 AppliedTheory Corporation
22773 780 1821 24 Cox Communications, Inc.
7011 764 206 458 Citizens Utilities
2386 715 108 606 AT&T Data Communications Serv
3356 605 9108 96 Level 3 Communications, LLC
6478 534 74 388 AT&T Worldnet Services
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
8452 1038 136 2 TEDATA
12479 327 320 3 Uni2 Autonomous System
8551 263 260 15 Bezeq International
30890 184 21 87 Evolva Telecom
3269 170 2477 37 TELECOM ITALIA
8877 149 12 3 PowerNet Ltd, Sofia, Bulgaria
9155 144 21 3 QualityNet AS number
3215 140 1253 39 France Telecom Transpac
9121 137 842 6 TTnet Autonomous System
12491 118 22 55 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 32 3 10 RAMtelecom Telecomunicaciones
6458 28 7 9 GUATEL
27696 24 1 9 Multidata S.A.
10620 22 10 6 TVCABLE BOGOTA
26608 22 4 1 SkyOnline do Brasil Ltda
12127 21 2 10 Telefonica de El Salvador
10318 12 16 1 CABLEVISION S.A.
6505 11 18 5 Global One Communicaoes Ltda
20299 8 1 4 NEWCOM AMERICAS
26619 8 1 7 Flycom Comunicaciones
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 453 53 34 LINKdotNET AS number
20858 278 34 3 EgyNet
33783 149 10 7 EEPAD TISP TELECOM & INTERNET
33776 114 6 2 Starcomms Nigeria Limited
6713 95 88 3 Itissalat Al-MAGHRIB
29571 84 10 4 Ci Telecom Autonomous system
5536 64 4 1 Internet Egypt Network
24835 43 12 4 RAYA Telecom - Egypt
29975 41 504 10 Vodacom
33774 35 37 18 AS Number for Telecom Algeria
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 2928 2442 34 bellsouth.net, inc.
20115 1348 1136 568 Charter Communications
11492 1185 144 11 Cable One
18566 1061 296 10 Covad Communications
8452 1038 136 2 TEDATA
1785 1019 347 31 AppliedTheory Corporation
22773 780 1821 24 Cox Communications, Inc.
7011 764 206 458 Citizens Utilities
2386 715 108 606 AT&T Data Communications Serv
3356 605 9108 96 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 1185 1174 Cable One
18566 1061 1051 Covad Communications
8452 1038 1036 TEDATA
1785 1019 988 AppliedTheory Corporation
20115 1348 780 Charter Communications
22773 780 756 Cox Communications, Inc.
3356 605 509 Level 3 Communications, LLC
6517 496 487 Yipes Communications, Inc.
33588 490 484 Bresnan Communications, LLC.
5668 436 430 CenturyTel Internet Holdings,
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
10.29.248.65/32 286 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.
24.246.0.0/17 7018 AT&T WorldNet Services
24.246.128.0/18 7018 AT&T WorldNet Services
41.220.16.0/20 8668 TelOne Zimbabwe P/L
41.223.112.0/22 5713 Telkom SA Ltd
41.223.188.0/24 22351 Intelsat
41.223.189.0/24 26452 Local Communications Networks
62.12.96.0/19 15834 MenaNet network Autonomous Sy
62.12.107.0/24 15834 MenaNet network Autonomous Sy
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 /10:7 /11:26 /12:76
/13:127 /14:190 /15:387 /16:1913 /17:1686 /18:2733
/19:5450 /20:8235 /21:6344 /22:8028 /23:8327 /24:36896
/25:36 /26:23 /27:44 /28:27 /29:24 /30:1
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 1954 2928 bellsouth.net, inc.
11492 1163 1185 Cable One
18566 1042 1061 Covad Communications
8452 1022 1038 TEDATA
1785 883 1019 AppliedTheory Corporation
2386 714 715 AT&T Data Communications Serv
7011 696 764 Citizens Utilities
20115 638 1348 Charter Communications
6478 534 534 AT&T Worldnet Services
3356 527 605 Level 3 Communications, LLC
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:13 8:180 12:2214 13:2 15:21 16:3
17:5 20:35 24:1125 32:132 38:544 40:96
41:1777 43:1 44:2 47:11 52:3 55:2
56:3 57:37 58:529 59:606 60:459 61:1102
62:1181 63:1938 64:3438 65:2423 66:3578 67:1477
68:653 69:2479 70:529 71:160 72:1622 73:2
74:1416 75:204 76:297 77:771 78:550 79:320
80:958 81:826 82:564 83:401 84:609 85:995
86:400 87:203
End of report