Routing Table Report 00:00 GMT Fri 21 Jan, 2011
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 348084
Prefixes after maximum aggregation: 156178
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 169258
Total ASes present in the Internet Routing Table: 35686
Prefixes per ASN: 9.75
Origin-only ASes present in the Internet Routing Table: 30759
Origin ASes announcing only one prefix: 14887
Transit ASes present in the Internet Routing Table: 4927
Transit-only ASes present in the Internet Routing Table: 114
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 28
Max AS path prepend of ASN (47645) 19
Prefixes from unregistered ASNs in the Routing Table: 409
Unregistered ASNs in the Routing Table: 155
Number of 32-bit ASNs allocated by the RIRs: 1026
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 75
Prefixes being announced from unallocated address space: 221
Number of addresses announced to Internet: 2439775168
Equivalent to 145 /8s, 108 /16s and 3 /24s
Percentage of available address space announced: 65.8
Percentage of allocated address space announced: 68.0
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 87.7
Total number of prefixes smaller than registry allocations: 143242
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83682
Total APNIC prefixes after maximum aggregation: 27950
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 80613
Unique aggregates announced from the APNIC address blocks: 35471
APNIC Region origin ASes present in the Internet Routing Table: 4284
APNIC Prefixes per ASN: 18.82
APNIC Region origin ASes announcing only one prefix: 1221
APNIC Region transit ASes present in the Internet Routing Table: 678
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 580961763
Equivalent to 34 /8s, 160 /16s and 197 /24s
Percentage of available APNIC address space announced: 78.7
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 42/8, 43/8, 49/8,
58/8, 59/8, 60/8, 61/8, 101/8, 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, 133/8, 175/8, 180/8, 182/8, 183/8, 202/8,
203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 141153
Total ARIN prefixes after maximum aggregation: 72573
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 111594
Unique aggregates announced from the ARIN address blocks: 44275
ARIN Region origin ASes present in the Internet Routing Table: 14140
ARIN Prefixes per ASN: 7.89
ARIN Region origin ASes announcing only one prefix: 5380
ARIN Region transit ASes present in the Internet Routing Table: 1461
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 778652809
Equivalent to 46 /8s, 105 /16s and 76 /24s
Percentage of available ARIN address space announced: 65.4
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
53248-55295, 393216-394239
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 47/8, 48/8, 50/8, 52/8, 54/8,
55/8, 56/8, 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, 100/8,
107/8, 108/8, 173/8, 174/8, 184/8, 199/8, 204/8,
205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8,
216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 84038
Total RIPE prefixes after maximum aggregation: 46318
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 76659
Unique aggregates announced from the RIPE address blocks: 48064
RIPE Region origin ASes present in the Internet Routing Table: 15233
RIPE Prefixes per ASN: 5.03
RIPE Region origin ASes announcing only one prefix: 7716
RIPE Region transit ASes present in the Internet Routing Table: 2382
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 455894953
Equivalent to 27 /8s, 44 /16s and 103 /24s
Percentage of available RIPE address space announced: 75.5
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, 47104-52223, 56320-58367
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
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,
176/8, 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: 31469
Total LACNIC prefixes after maximum aggregation: 7232
LACNIC Deaggregation factor: 4.35
Prefixes being announced from the LACNIC address blocks: 30267
Unique aggregates announced from the LACNIC address blocks: 15739
LACNIC Region origin ASes present in the Internet Routing Table: 1419
LACNIC Prefixes per ASN: 21.33
LACNIC Region origin ASes announcing only one prefix: 433
LACNIC Region transit ASes present in the Internet Routing Table: 252
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 79636748
Equivalent to 4 /8s, 191 /16s and 41 /24s
Percentage of available LACNIC address space announced: 59.3
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 181/8, 186/8, 187/8, 189/8, 190/8, 200/8,
201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 7467
Total AfriNIC prefixes after maximum aggregation: 1986
AfriNIC Deaggregation factor: 3.76
Prefixes being announced from the AfriNIC address blocks: 5784
Unique aggregates announced from the AfriNIC address blocks: 1891
AfriNIC Region origin ASes present in the Internet Routing Table: 435
AfriNIC Prefixes per ASN: 13.30
AfriNIC Region origin ASes announcing only one prefix: 137
AfriNIC Region transit ASes present in the Internet Routing Table: 94
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 21745664
Equivalent to 1 /8s, 75 /16s and 208 /24s
Percentage of available AfriNIC address space announced: 43.2
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1755 9484 512 Korea Telecom (KIX)
7545 1565 298 74 TPG Internet Pty Ltd
4755 1397 376 158 Videsh Sanchar Nigam Ltd. Aut
17974 1381 459 28 PT TELEKOMUNIKASI INDONESIA
24560 1095 317 181 Bharti Airtel Ltd.
9583 1038 76 486 Sify Limited
17488 964 162 103 Hathway IP Over Cable Interne
4808 918 2002 263 CNCGROUP IP network: China169
18101 916 116 138 Reliance Infocom Ltd Internet
9829 862 729 48 BSNL National Internet Backbo
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3709 3855 266 bellsouth.net, inc.
4323 2648 1093 404 Time Warner Telecom
19262 1839 4927 283 Verizon Global Networks
1785 1791 697 132 AppliedTheory Corporation
20115 1571 1533 641 Charter Communications
6478 1464 291 54 AT&T Worldnet Services
7018 1373 5676 888 AT&T WorldNet Services
2386 1298 553 933 AT&T Data Communications Serv
22773 1276 2864 77 Cox Communications, Inc.
11492 1268 234 76 Cable One
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
286 977 710 153 KPNQwest Backbone AS
9116 526 328 32 Goldenlines main autonomous s
3292 503 2010 387 TDC Tele Danmark
6830 501 1763 307 UPC Distribution Services
9198 460 266 14 Kazakhtelecom Corporate Sales
34984 457 97 137 Tellcom Iletisim Hizmetleri
8866 439 133 23 Bulgarian Telecommunication C
8551 404 355 38 Bezeq International
12479 403 577 6 Uni2 Autonomous System
3320 401 7618 350 Deutsche Telekom AG
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1355 251 165 TVCABLE BOGOTA
8151 1336 2597 368 Uninet S.A. de C.V.
28573 1244 954 80 Types of queries are: POCs, o
6503 1149 355 79 AVANTEL, S.A.
7303 887 461 114 Telecom Argentina Stet-France
14420 604 50 89 Types of queries are: POCs, o
22047 567 310 15 Types of queries are: POCs, o
3816 506 220 105 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
27947 457 53 48 Telconet S.A
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 756 147 40 LINKdotNET AS number
8452 744 445 11 TEDATA
36992 646 281 156 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 217 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 194 19 11 Ci Telecom Autonomous system
33776 184 12 14 Starcomms Nigeria Limited
2018 167 277 64 TENET-1
16637 163 425 89 Johnnic e-Ventures
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3709 3855 266 bellsouth.net, inc.
4323 2648 1093 404 Time Warner Telecom
19262 1839 4927 283 Verizon Global Networks
1785 1791 697 132 AppliedTheory Corporation
4766 1755 9484 512 Korea Telecom (KIX)
20115 1571 1533 641 Charter Communications
7545 1565 298 74 TPG Internet Pty Ltd
6478 1464 291 54 AT&T Worldnet Services
4755 1397 376 158 Videsh Sanchar Nigam Ltd. Aut
17974 1381 459 28 PT TELEKOMUNIKASI INDONESIA
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2648 2244 Time Warner Telecom
1785 1791 1659 AppliedTheory Corporation
19262 1839 1556 Verizon Global Networks
7545 1565 1491 TPG Internet Pty Ltd
6478 1464 1410 AT&T Worldnet Services
17974 1381 1353 PT TELEKOMUNIKASI INDONESIA
4766 1755 1243 Korea Telecom (KIX)
4755 1397 1239 Videsh Sanchar Nigam Ltd. Aut
22773 1276 1199 Cox Communications, Inc.
11492 1268 1192 Cable One
Complete listing at http://thyme.rand.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 4323 Time Warner Telecom
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 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.244.56/29 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
5.0.0.0/16 12654 RIPE NCC RIS Project
5.0.0.0/8 237 Merit Network
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Continental Cablevision
37.0.0.0/16 12654 RIPE NCC RIS Project
37.0.0.0/8 237 Merit Network
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
41.222.79.0/24 36938 >>UNKNOWN<<
Complete listing at http://thyme.rand.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 /8:26 /9:10 /10:25 /11:71 /12:214
/13:438 /14:765 /15:1379 /16:11598 /17:5838 /18:9605
/19:19422 /20:24835 /21:24895 /22:32817 /23:31972 /24:181190
/25:362 /26:371 /27:200 /28:372 /29:296 /30:690
/31:46 /32:647
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2288 3709 bellsouth.net, inc.
4323 1429 2648 Time Warner Telecom
6478 1418 1464 AT&T Worldnet Services
10620 1246 1355 TVCABLE BOGOTA
11492 1224 1268 Cable One
18566 1118 1137 Covad Communications
7011 1068 1171 Citizens Utilities
1785 1060 1791 AppliedTheory Corporation
19262 952 1839 Verizon Global Networks
6503 935 1149 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:165 2:43 4:17 5:1 8:330 12:2032
13:6 14:378 15:15 16:3 17:8 20:9
23:1 24:1477 27:539 32:128 33:5 34:2
36:1 37:1 38:689 40:101 41:2297 42:1
44:3 46:522 47:5 49:139 50:51 52:12
55:8 56:2 57:41 58:868 59:486 60:391
61:1138 62:1036 63:1931 64:3776 65:2343 66:4125
67:1787 68:1154 69:2981 70:761 71:394 72:2037
73:3 74:2350 75:302 76:335 77:864 78:706
79:445 80:1049 81:824 82:541 83:465 84:661
85:1066 86:530 87:759 88:354 89:1597 90:154
91:3434 92:490 93:1053 94:1190 95:771 96:413
97:249 98:759 99:33 101:21 107:3 108:79
109:871 110:460 111:693 112:308 113:364 114:493
115:631 116:901 117:677 118:633 119:1039 120:240
121:710 122:1604 123:1046 124:1265 125:1213 128:248
129:159 130:171 131:568 132:110 133:20 134:219
135:50 136:216 137:146 138:293 139:140 140:485
141:198 142:361 143:381 144:487 145:52 146:425
147:205 148:625 149:305 150:153 151:230 152:303
153:175 154:3 155:346 156:173 157:342 158:126
159:377 160:314 161:201 162:278 163:159 164:470
165:353 166:600 167:421 168:743 169:154 170:747
171:69 172:2 173:1248 174:509 175:307 176:1
177:4 178:744 180:757 182:396 183:245 184:235
186:932 187:801 188:907 189:1030 190:4366 192:5821
193:4825 194:3550 195:3089 196:1252 197:2 198:3571
199:3752 200:5597 201:1572 202:8444 203:8436 204:4077
205:2338 206:2588 207:2976 208:3880 209:3471 210:2641
211:1339 212:1913 213:1772 214:739 215:62 216:4865
217:1638 218:549 219:374 220:1202 221:446 222:346
223:90
End of report
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