Routing Table Report 00:00 GMT Fri 18 Feb, 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: 351942
Prefixes after maximum aggregation: 157965
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 171483
Total ASes present in the Internet Routing Table: 35927
Prefixes per ASN: 9.80
Origin-only ASes present in the Internet Routing Table: 31041
Origin ASes announcing only one prefix: 14924
Transit ASes present in the Internet Routing Table: 4886
Transit-only ASes present in the Internet Routing Table: 109
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 31
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 411
Unregistered ASNs in the Routing Table: 163
Number of 32-bit ASNs allocated by the RIRs: 1130
Prefixes from 32-bit ASNs in the Routing Table: 1
Special use prefixes present in the Routing Table: 74
Prefixes being announced from unallocated address space: 216
Number of addresses announced to Internet: 2396268295
Equivalent to 142 /8s, 212 /16s and 39 /24s
Percentage of available address space announced: 64.7
Percentage of allocated address space announced: 64.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.0
Total number of prefixes smaller than registry allocations: 145545
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 84279
Total APNIC prefixes after maximum aggregation: 28246
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 81190
Unique aggregates announced from the APNIC address blocks: 35853
APNIC Region origin ASes present in the Internet Routing Table: 4321
APNIC Prefixes per ASN: 18.79
APNIC Region origin ASes announcing only one prefix: 1224
APNIC Region transit ASes present in the Internet Routing Table: 678
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 589572034
Equivalent to 35 /8s, 36 /16s and 39 /24s
Percentage of available APNIC address space announced: 74.8
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, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 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: 142577
Total ARIN prefixes after maximum aggregation: 73416
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113106
Unique aggregates announced from the ARIN address blocks: 44899
ARIN Region origin ASes present in the Internet Routing Table: 14224
ARIN Prefixes per ASN: 7.95
ARIN Region origin ASes announcing only one prefix: 5389
ARIN Region transit ASes present in the Internet Routing Table: 1450
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 24
Number of ARIN addresses announced to Internet: 787438745
Equivalent to 46 /8s, 239 /16s and 92 /24s
Percentage of available ARIN address space announced: 62.6
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, 45/8, 47/8, 48/8, 50/8, 52/8,
53/8, 54/8, 55/8, 56/8, 57/8, 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, 104/8, 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: 85543
Total RIPE prefixes after maximum aggregation: 46954
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 78081
Unique aggregates announced from the RIPE address blocks: 49027
RIPE Region origin ASes present in the Internet Routing Table: 15347
RIPE Prefixes per ASN: 5.09
RIPE Region origin ASes announcing only one prefix: 7738
RIPE Region transit ASes present in the Internet Routing Table: 2338
Average RIPE Region AS path length visible: 3.8
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 460370821
Equivalent to 27 /8s, 112 /16s and 179 /24s
Percentage of available RIPE address space announced: 74.2
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, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 31823
Total LACNIC prefixes after maximum aggregation: 7412
LACNIC Deaggregation factor: 4.29
Prefixes being announced from the LACNIC address blocks: 30602
Unique aggregates announced from the LACNIC address blocks: 15938
LACNIC Region origin ASes present in the Internet Routing Table: 1430
LACNIC Prefixes per ASN: 21.40
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 258
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 80780428
Equivalent to 4 /8s, 208 /16s and 156 /24s
Percentage of available LACNIC address space announced: 53.5
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 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: 7458
Total AfriNIC prefixes after maximum aggregation: 1825
AfriNIC Deaggregation factor: 4.09
Prefixes being announced from the AfriNIC address blocks: 5847
Unique aggregates announced from the AfriNIC address blocks: 1839
AfriNIC Region origin ASes present in the Internet Routing Table: 436
AfriNIC Prefixes per ASN: 13.41
AfriNIC Region origin ASes announcing only one prefix: 133
AfriNIC Region transit ASes present in the Internet Routing Table: 100
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21856512
Equivalent to 1 /8s, 77 /16s and 129 /24s
Percentage of available AfriNIC address space announced: 32.6
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1844 9490 571 Korea Telecom (KIX)
7545 1625 302 88 TPG Internet Pty Ltd
4755 1423 377 162 Videsh Sanchar Nigam Ltd. Aut
17974 1404 459 29 PT TELEKOMUNIKASI INDONESIA
24560 1113 323 182 Bharti Airtel Ltd.
9583 1044 77 488 Sify Limited
17488 965 162 103 Hathway IP Over Cable Interne
4808 948 2029 277 CNCGROUP IP network: China169
18101 929 117 141 Reliance Infocom Ltd Internet
9829 889 759 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 3694 3855 261 bellsouth.net, inc.
4323 2624 1125 406 Time Warner Telecom
19262 1844 4955 284 Verizon Global Networks
1785 1787 697 131 AppliedTheory Corporation
20115 1577 1537 646 Charter Communications
6478 1511 295 74 AT&T Worldnet Services
7018 1368 6699 884 AT&T WorldNet Services
18566 1306 312 119 Covad Communications
2386 1298 553 935 AT&T Data Communications Serv
11492 1279 236 77 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
286 981 713 158 KPNQwest Backbone AS
9116 545 328 32 Goldenlines main autonomous s
6830 514 1764 318 UPC Distribution Services
3292 501 1996 389 TDC Tele Danmark
9198 466 267 15 Kazakhtelecom Corporate Sales
34984 463 98 143 Tellcom Iletisim Hizmetleri
8866 441 133 23 Bulgarian Telecommunication C
20940 415 98 322 Akamai Technologies European
3320 410 7620 357 Deutsche Telekom AG
8551 405 355 38 Bezeq International
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 1374 255 166 TVCABLE BOGOTA
8151 1347 2661 359 Uninet S.A. de C.V.
28573 1235 961 82 Types of queries are: POCs, o
6503 1189 354 74 AVANTEL, S.A.
7303 900 463 141 Telecom Argentina Stet-France
14420 638 57 92 Types of queries are: POCs, o
22047 543 310 15 Types of queries are: POCs, o
3816 508 220 98 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 475 37 43 Telefonica del Sur 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 764 147 40 LINKdotNET AS number
8452 728 445 11 TEDATA
15475 500 90 12 Nile Online
36992 301 271 14 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 220 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
16637 152 422 86 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 3694 3855 261 bellsouth.net, inc.
4323 2624 1125 406 Time Warner Telecom
4766 1844 9490 571 Korea Telecom (KIX)
19262 1844 4955 284 Verizon Global Networks
1785 1787 697 131 AppliedTheory Corporation
7545 1625 302 88 TPG Internet Pty Ltd
20115 1577 1537 646 Charter Communications
6478 1511 295 74 AT&T Worldnet Services
4755 1423 377 162 Videsh Sanchar Nigam Ltd. Aut
17974 1404 459 29 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 2624 2218 Time Warner Telecom
1785 1787 1656 AppliedTheory Corporation
19262 1844 1560 Verizon Global Networks
7545 1625 1537 TPG Internet Pty Ltd
6478 1511 1437 AT&T Worldnet Services
17974 1404 1375 PT TELEKOMUNIKASI INDONESIA
4766 1844 1273 Korea Telecom (KIX)
4755 1423 1261 Videsh Sanchar Nigam Ltd. Aut
10620 1374 1208 TVCABLE BOGOTA
11492 1279 1202 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 4323 Time Warner Telecom
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 1239 Sprint
26973 UNALLOCATED 12.39.154.0/23 1239 Sprint
26973 UNALLOCATED 12.39.155.0/24 1239 Sprint
26973 UNALLOCATED 12.39.159.0/24 1239 Sprint
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
5.1.0.0/21 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
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
39.0.0.0/8 237 Merit Network
41.57.192.0/18 22750 BCSNET
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 /8:21 /9:10 /10:26 /11:73 /12:216
/13:445 /14:770 /15:1396 /16:11626 /17:5883 /18:9627
/19:19337 /20:25060 /21:25253 /22:33417 /23:32271 /24:183376
/25:394 /26:367 /27:217 /28:384 /29:328 /30:730
/31:47 /32:668
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2281 3694 bellsouth.net, inc.
6478 1465 1511 AT&T Worldnet Services
4323 1413 2624 Time Warner Telecom
18566 1284 1306 Covad Communications
10620 1265 1374 TVCABLE BOGOTA
11492 1236 1279 Cable One
7011 1057 1160 Citizens Utilities
1785 1054 1787 AppliedTheory Corporation
6503 970 1189 AVANTEL, S.A.
19262 954 1844 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:191 2:61 4:17 5:1 8:335 12:2033
13:1 14:416 15:15 16:3 17:8 20:9
23:1 24:1506 27:586 32:127 33:4 34:2
37:1 38:706 40:101 41:2242 44:3 46:616
47:4 49:146 50:93 52:12 55:2 56:2
57:43 58:865 59:478 60:391 61:1115 62:1076
63:1948 64:3829 65:2360 66:4182 67:1811 68:1183
69:3020 70:776 71:407 72:2041 73:3 74:2374
75:304 76:355 77:881 78:710 79:462 80:1067
81:856 82:536 83:477 84:647 85:1067 86:562
87:777 88:360 89:1610 90:157 91:3514 92:495
93:1051 94:1225 95:784 96:453 97:251 98:829
99:33 101:31 107:3 108:88 109:932 110:480
111:705 112:311 113:362 114:499 115:655 116:944
117:677 118:670 119:1016 120:245 121:702 122:1629
123:1052 124:1303 125:1257 128:266 129:159 130:170
131:568 132:109 133:20 134:219 135:49 136:215
137:146 138:293 139:132 140:495 141:203 142:360
143:380 144:487 145:51 146:430 147:211 148:638
149:275 150:161 151:230 152:298 153:180 154:3
155:350 156:176 157:343 158:129 159:380 160:314
161:206 162:274 163:160 164:487 165:356 166:503
167:422 168:742 169:153 170:755 171:69 172:2
173:1334 174:534 175:308 176:1 177:9 178:783
180:810 182:365 183:247 184:277 186:1006 187:823
188:893 189:1048 190:4393 192:5847 193:4829 194:3567
195:3099 196:1193 197:3 198:3592 199:3843 200:5594
201:1596 202:8438 203:8472 204:4103 205:2344 206:2658
207:3087 208:3919 209:3501 210:2636 211:1339 212:1974
213:1779 214:761 215:62 216:4914 217:1641 218:541
219:380 220:1204 221:453 222:337 223:100
End of report
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