Routing Table Report 00:00 GMT Wed 02 Mar, 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: 352898
Prefixes after maximum aggregation: 158557
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 172003
Total ASes present in the Internet Routing Table: 35970
Prefixes per ASN: 9.81
Origin-only ASes present in the Internet Routing Table: 30983
Origin ASes announcing only one prefix: 14882
Transit ASes present in the Internet Routing Table: 4987
Transit-only ASes present in the Internet Routing Table: 112
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 27
Max AS path prepend of ASN (39475) 19
Prefixes from unregistered ASNs in the Routing Table: 439
Unregistered ASNs in the Routing Table: 186
Number of 32-bit ASNs allocated by the RIRs: 1155
Prefixes from 32-bit ASNs in the Routing Table: 2
Special use prefixes present in the Routing Table: 73
Prefixes being announced from unallocated address space: 210
Number of addresses announced to Internet: 2367402782
Equivalent to 141 /8s, 27 /16s and 179 /24s
Percentage of available address space announced: 63.9
Percentage of allocated address space announced: 63.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.4
Total number of prefixes smaller than registry allocations: 145862
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 84824
Total APNIC prefixes after maximum aggregation: 28453
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 81764
Unique aggregates announced from the APNIC address blocks: 36097
APNIC Region origin ASes present in the Internet Routing Table: 4328
APNIC Prefixes per ASN: 18.89
APNIC Region origin ASes announcing only one prefix: 1210
APNIC Region transit ASes present in the Internet Routing Table: 680
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 27
Number of APNIC addresses announced to Internet: 592231874
Equivalent to 35 /8s, 76 /16s and 189 /24s
Percentage of available APNIC address space announced: 75.1
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: 142728
Total ARIN prefixes after maximum aggregation: 73613
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113064
Unique aggregates announced from the ARIN address blocks: 44838
ARIN Region origin ASes present in the Internet Routing Table: 14218
ARIN Prefixes per ASN: 7.95
ARIN Region origin ASes announcing only one prefix: 5366
ARIN Region transit ASes present in the Internet Routing Table: 1445
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 25
Number of ARIN addresses announced to Internet: 787669657
Equivalent to 46 /8s, 242 /16s and 226 /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: 85451
Total RIPE prefixes after maximum aggregation: 47141
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 77926
Unique aggregates announced from the RIPE address blocks: 49228
RIPE Region origin ASes present in the Internet Routing Table: 15387
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7742
RIPE Region transit ASes present in the Internet Routing Table: 2443
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 461591964
Equivalent to 27 /8s, 131 /16s and 85 /24s
Percentage of available RIPE address space announced: 74.4
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: 32082
Total LACNIC prefixes after maximum aggregation: 7415
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 30947
Unique aggregates announced from the LACNIC address blocks: 16078
LACNIC Region origin ASes present in the Internet Routing Table: 1434
LACNIC Prefixes per ASN: 21.58
LACNIC Region origin ASes announcing only one prefix: 434
LACNIC Region transit ASes present in the Internet Routing Table: 255
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 81176460
Equivalent to 4 /8s, 214 /16s and 167 /24s
Percentage of available LACNIC address space announced: 53.8
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: 7550
Total AfriNIC prefixes after maximum aggregation: 1826
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 5949
Unique aggregates announced from the AfriNIC address blocks: 1836
AfriNIC Region origin ASes present in the Internet Routing Table: 432
AfriNIC Prefixes per ASN: 13.77
AfriNIC Region origin ASes announcing only one prefix: 130
AfriNIC Region transit ASes present in the Internet Routing Table: 94
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC addresses announced to Internet: 21874176
Equivalent to 1 /8s, 77 /16s and 198 /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 1865 9493 587 Korea Telecom (KIX)
7545 1587 301 84 TPG Internet Pty Ltd
4755 1422 378 163 Videsh Sanchar Nigam Ltd. Aut
17974 1410 467 30 PT TELEKOMUNIKASI INDONESIA
24560 1116 323 185 Bharti Airtel Ltd.
9583 1044 76 487 Sify Limited
17488 955 161 102 Hathway IP Over Cable Interne
4808 941 2029 271 CNCGROUP IP network: China169
18101 935 117 141 Reliance Infocom Ltd Internet
9829 895 761 45 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 3687 3855 263 bellsouth.net, inc.
4323 2599 1125 403 Time Warner Telecom
1785 1790 697 131 AppliedTheory Corporation
19262 1787 4954 285 Verizon Global Networks
20115 1578 1538 647 Charter Communications
6478 1524 296 105 AT&T Worldnet Services
18566 1447 321 156 Covad Communications
7018 1364 6730 888 AT&T WorldNet Services
2386 1294 537 937 AT&T Data Communications Serv
11492 1285 236 70 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
286 992 761 160 KPNQwest Backbone AS
9116 545 328 32 Goldenlines main autonomous s
6830 514 1780 318 UPC Distribution Services
3292 500 1996 388 TDC Tele Danmark
9198 469 267 15 Kazakhtelecom Corporate Sales
34984 465 98 145 Tellcom Iletisim Hizmetleri
8866 443 133 23 Bulgarian Telecommunication C
20940 417 98 320 Akamai Technologies European
3320 405 7604 353 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 1383 257 166 TVCABLE BOGOTA
8151 1357 2685 363 Uninet S.A. de C.V.
28573 1223 961 82 Types of queries are: POCs, o
6503 1177 354 74 AVANTEL, S.A.
7303 909 464 146 Telecom Argentina Stet-France
14420 642 56 93 Types of queries are: POCs, o
22047 540 310 15 Types of queries are: POCs, o
3816 514 223 100 COLOMBIA TELECOMUNICACIONES S
7738 479 922 30 Telecomunicacoes da Bahia S.A
27947 470 53 50 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
8452 799 445 11 TEDATA
24863 772 147 40 LINKdotNET AS number
15475 474 90 12 Nile Online
36992 300 271 14 Etisalat MISR
3741 265 987 227 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 218 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 150 439 88 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 3687 3855 263 bellsouth.net, inc.
4323 2599 1125 403 Time Warner Telecom
4766 1865 9493 587 Korea Telecom (KIX)
1785 1790 697 131 AppliedTheory Corporation
19262 1787 4954 285 Verizon Global Networks
7545 1587 301 84 TPG Internet Pty Ltd
20115 1578 1538 647 Charter Communications
6478 1524 296 105 AT&T Worldnet Services
18566 1447 321 156 Covad Communications
4755 1422 378 163 Videsh Sanchar Nigam Ltd. Aut
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 2599 2196 Time Warner Telecom
1785 1790 1659 AppliedTheory Corporation
7545 1587 1503 TPG Internet Pty Ltd
19262 1787 1502 Verizon Global Networks
6478 1524 1419 AT&T Worldnet Services
17974 1410 1380 PT TELEKOMUNIKASI INDONESIA
18566 1447 1291 Covad Communications
4766 1865 1278 Korea Telecom (KIX)
4755 1422 1259 Videsh Sanchar Nigam Ltd. Aut
10620 1383 1217 TVCABLE BOGOTA
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
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Continental Cablevision
31.24.224.0/22 39458 Real Hosts Limited
31.28.192.0/19 34168 ELCOM ISP Autonomous System
31.184.128.0/18 51074 Gostaresh Ertebatate Mabna Co
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
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 /8:20 /9:10 /10:26 /11:73 /12:216
/13:444 /14:771 /15:1398 /16:11640 /17:5902 /18:9665
/19:19420 /20:25133 /21:25393 /22:33738 /23:32360 /24:183866
/25:399 /26:370 /27:195 /28:338 /29:222 /30:622
/31:47 /32:630
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2274 3687 bellsouth.net, inc.
6478 1478 1524 AT&T Worldnet Services
18566 1425 1447 Covad Communications
4323 1398 2599 Time Warner Telecom
10620 1274 1383 TVCABLE BOGOTA
11492 1242 1285 Cable One
1785 1055 1790 AppliedTheory Corporation
7011 1052 1153 Citizens Utilities
6503 958 1177 AVANTEL, S.A.
19262 898 1787 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:259 2:62 4:17 5:1 8:340 12:2030
13:1 14:413 15:15 16:3 17:8 20:9
23:1 24:1509 27:594 31:1 32:127 33:4
34:2 37:1 38:706 40:101 41:2324 44:3
46:641 47:4 49:153 50:99 52:12 55:2
56:2 57:42 58:863 59:479 60:384 61:1112
62:1067 63:1936 64:3871 65:2363 66:4267 67:1803
68:1223 69:2977 70:772 71:405 72:2024 73:3
74:2402 75:305 76:355 77:848 78:700 79:458
80:1080 81:803 82:535 83:475 84:647 85:1066
86:579 87:783 88:359 89:1610 90:158 91:3555
92:495 93:1062 94:1230 95:765 96:455 97:251
98:795 99:33 101:33 107:4 108:118 109:910
110:475 111:721 112:312 113:387 114:507 115:657
116:969 117:681 118:685 119:1033 120:251 121:694
122:1621 123:1059 124:1308 125:1260 128:267 129:159
130:172 131:562 132:107 133:20 134:213 135:49
136:215 137:146 138:295 139:130 140:487 141:203
142:375 143:384 144:490 145:51 146:435 147:214
148:633 149:273 150:168 151:230 152:297 153:180
154:3 155:377 156:177 157:345 158:128 159:382
160:314 161:209 162:279 163:154 164:487 165:361
166:502 167:409 168:729 169:160 170:757 171:69
172:2 173:1239 174:511 175:321 176:1 177:33
178:777 180:812 181:4 182:393 183:242 184:277
186:1024 187:831 188:909 189:1049 190:4608 192:5796
193:4823 194:3570 195:3105 196:1200 197:4 198:3600
199:3823 200:5607 201:1588 202:8433 203:8476 204:4089
205:2294 206:2655 207:3076 208:3934 209:3485 210:2648
211:1350 212:1963 213:1795 214:757 215:63 216:4880
217:1664 218:553 219:379 220:1207 221:453 222:338
223:104
End of report
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