Routing Table Report 00:00 GMT Wed 08 Jun, 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: 363702
Prefixes after maximum aggregation: 163987
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 178223
Total ASes present in the Internet Routing Table: 37827
Prefixes per ASN: 9.61
Origin-only ASes present in the Internet Routing Table: 31666
Origin ASes announcing only one prefix: 15122
Transit ASes present in the Internet Routing Table: 5025
Transit-only ASes present in the Internet Routing Table: 134
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 29
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 3503
Unregistered ASNs in the Routing Table: 432
Number of 32-bit ASNs allocated by the RIRs: 1433
Number of 32-bit ASNs visible in the Routing Table: 1136
Prefixes from 32-bit ASNs in the Routing Table: 2631
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 168
Number of addresses announced to Internet: 2469864296
Equivalent to 147 /8s, 55 /16s and 35 /24s
Percentage of available address space announced: 66.6
Percentage of allocated address space announced: 66.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 151651
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86800
Total APNIC prefixes after maximum aggregation: 28936
APNIC Deaggregation factor: 3.00
Prefixes being announced from the APNIC address blocks: 83371
Unique aggregates announced from the APNIC address blocks: 36648
APNIC Region origin ASes present in the Internet Routing Table: 4455
APNIC Prefixes per ASN: 18.71
APNIC Region origin ASes announcing only one prefix: 1259
APNIC Region transit ASes present in the Internet Routing Table: 689
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 47
Number of APNIC addresses announced to Internet: 619779010
Equivalent to 36 /8s, 241 /16s and 19 /24s
Percentage of available APNIC address space announced: 78.6
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: 143952
Total ARIN prefixes after maximum aggregation: 73661
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 115604
Unique aggregates announced from the ARIN address blocks: 46131
ARIN Region origin ASes present in the Internet Routing Table: 14436
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5497
ARIN Region transit ASes present in the Internet Routing Table: 1473
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 818759960
Equivalent to 48 /8s, 205 /16s and 73 /24s
Percentage of available ARIN address space announced: 65.1
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: 88639
Total RIPE prefixes after maximum aggregation: 48957
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 81286
Unique aggregates announced from the RIPE address blocks: 52042
RIPE Region origin ASes present in the Internet Routing Table: 15698
RIPE Prefixes per ASN: 5.18
RIPE Region origin ASes announcing only one prefix: 7784
RIPE Region transit ASes present in the Internet Routing Table: 2441
Average RIPE Region AS path length visible: 3.8
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 843
Number of RIPE addresses announced to Internet: 476162284
Equivalent to 28 /8s, 97 /16s and 168 /24s
Percentage of available RIPE address space announced: 76.7
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: 33065
Total LACNIC prefixes after maximum aggregation: 7562
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 32299
Unique aggregates announced from the LACNIC address blocks: 16945
LACNIC Region origin ASes present in the Internet Routing Table: 1459
LACNIC Prefixes per ASN: 22.14
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 254
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 229
Number of LACNIC addresses announced to Internet: 84734216
Equivalent to 5 /8s, 12 /16s and 241 /24s
Percentage of available LACNIC address space announced: 56.1
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: 8308
Total AfriNIC prefixes after maximum aggregation: 1932
AfriNIC Deaggregation factor: 4.30
Prefixes being announced from the AfriNIC address blocks: 6276
Unique aggregates announced from the AfriNIC address blocks: 1922
AfriNIC Region origin ASes present in the Internet Routing Table: 458
AfriNIC Prefixes per ASN: 13.70
AfriNIC Region origin ASes announcing only one prefix: 142
AfriNIC Region transit ASes present in the Internet Routing Table: 101
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 24092160
Equivalent to 1 /8s, 111 /16s and 158 /24s
Percentage of available AfriNIC address space announced: 35.9
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 1899 9504 617 Korea Telecom (KIX)
17974 1551 441 38 PT TELEKOMUNIKASI INDONESIA
7545 1539 301 87 TPG Internet Pty Ltd
4755 1471 630 166 Videsh Sanchar Nigam Ltd. Aut
24560 1156 337 187 Bharti Airtel Ltd.
7552 1141 1064 7 Vietel Corporation
9583 1081 80 509 Sify Limited
9829 1041 878 59 BSNL National Internet Backbo
4808 1036 2082 296 CNCGROUP IP network: China169
17488 951 173 105 Hathway IP Over Cable Interne
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 3636 3822 255 bellsouth.net, inc.
4323 1968 1097 402 Time Warner Telecom
18566 1919 363 266 Covad Communications
1785 1792 681 123 AppliedTheory Corporation
6478 1719 318 43 AT&T Worldnet Services
20115 1590 1544 633 Charter Communications
19262 1493 4936 308 Verizon Global Networks
7018 1376 7085 901 AT&T WorldNet Services
22773 1339 2897 88 Cox Communications, Inc.
2386 1271 537 913 AT&T Data Communications Serv
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 1048 798 192 KPNQwest Backbone AS
9116 539 326 30 Goldenlines main autonomous s
34984 520 106 180 Tellcom Iletisim Hizmetleri
3292 515 2078 397 TDC Tele Danmark
6830 515 1780 321 UPC Distribution Services
20940 457 134 348 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 432 593 7 Uni2 Autonomous System
3320 420 8151 366 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 1512 278 157 TVCABLE BOGOTA
8151 1383 2707 361 Uninet S.A. de C.V.
28573 1315 992 87 Types of queries are: POCs, o
7303 960 504 154 Telecom Argentina Stet-France
6503 744 354 76 AVANTEL, S.A.
14420 677 54 80 Types of queries are: POCs, o
22047 564 310 15 Types of queries are: POCs, o
3816 529 231 93 COLOMBIA TELECOMUNICACIONES S
13489 519 263 122 Orbitel S.A. E.S.P.
7738 516 986 31 Telecomunicacoes da Bahia 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 795 445 11 TEDATA
24863 721 142 32 LINKdotNET AS number
15475 520 74 8 Nile Online
36992 311 415 17 Etisalat MISR
16637 296 441 87 Johnnic e-Ventures
3741 264 937 225 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 217 12 11 Starcomms Nigeria Limited
24835 210 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
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 3636 3822 255 bellsouth.net, inc.
23456 2631 645 1421 >>UNKNOWN<<
4323 1968 1097 402 Time Warner Telecom
18566 1919 363 266 Covad Communications
4766 1899 9504 617 Korea Telecom (KIX)
1785 1792 681 123 AppliedTheory Corporation
6478 1719 318 43 AT&T Worldnet Services
20115 1590 1544 633 Charter Communications
17974 1551 441 38 PT TELEKOMUNIKASI INDONESIA
7545 1539 301 87 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6478 1719 1676 AT&T Worldnet Services
1785 1792 1669 AppliedTheory Corporation
18566 1919 1653 Covad Communications
4323 1968 1566 Time Warner Telecom
17974 1551 1513 PT TELEKOMUNIKASI INDONESIA
7545 1539 1452 TPG Internet Pty Ltd
10620 1512 1355 TVCABLE BOGOTA
4755 1471 1305 Videsh Sanchar Nigam Ltd. Aut
4766 1899 1282 Korea Telecom (KIX)
22773 1339 1251 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 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
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 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
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
27.0.128.0/17 7514 Media Exchange, Inc.
31.131.128.0/20 48595 Sergiy Lazebniy
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
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 /9:12 /10:28 /11:81 /12:230
/13:462 /14:804 /15:1421 /16:12038 /17:6095 /18:10070
/19:19863 /20:26526 /21:26392 /22:34577 /23:33674 /24:188552
/25:369 /26:349 /27:183 /28:305 /29:278 /30:680
/31:75 /32:617
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2239 3636 bellsouth.net, inc.
18566 1876 1919 Covad Communications
6478 1673 1719 AT&T Worldnet Services
10620 1402 1512 TVCABLE BOGOTA
23456 1298 2631 >>UNKNOWN<<
11492 1114 1160 Cable One
7011 1062 1161 Citizens Utilities
1785 1050 1792 AppliedTheory Corporation
286 906 1048 KPNQwest Backbone AS
4323 880 1968 Time Warner Telecom
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:282 2:53 4:21 5:2 6:3 8:339
12:1980 13:1 14:459 15:15 16:3 17:8
20:10 23:11 24:1627 27:773 31:428 32:126
33:4 34:2 37:1 38:738 40:101 41:2518
42:6 44:3 46:948 47:3 49:199 50:402
52:13 54:2 55:4 56:2 57:39 58:844
59:477 60:387 61:1123 62:1059 63:1952 64:3959
65:2257 66:4160 67:1893 68:1268 69:3105 70:751
71:374 72:1877 73:2 74:2410 75:323 76:349
77:923 78:709 79:477 80:1101 81:841 82:509
83:492 84:683 85:1083 86:601 87:773 88:337
89:1573 90:203 91:3822 92:528 93:1080 94:1320
95:834 96:508 97:251 98:895 99:35 101:63
103:51 106:1 107:11 108:83 109:985 110:597
111:706 112:303 113:399 114:538 115:687 116:971
117:686 118:796 119:1132 120:311 121:671 122:1626
123:954 124:1269 125:1221 128:262 129:176 130:165
131:575 132:111 133:19 134:212 135:48 136:214
137:144 138:301 139:123 140:481 141:239 142:407
143:413 144:499 145:54 146:445 147:223 148:599
149:250 150:173 151:187 152:330 153:179 154:3
155:397 156:198 157:353 158:138 159:380 160:318
161:208 162:300 163:165 164:500 165:371 166:522
167:429 168:729 169:156 170:802 171:77 172:1
173:1610 174:586 175:371 176:131 177:144 178:987
180:856 181:18 182:462 183:204 184:376 185:1
186:1205 187:767 188:867 189:895 190:4892 192:5875
193:4935 194:3545 195:3128 196:1242 197:18 198:3598
199:3931 200:5513 201:1482 202:8313 203:8338 204:4188
205:2341 206:2766 207:2880 208:3964 209:3492 210:2719
211:1401 212:2065 213:1747 214:733 215:72 216:4956
217:1642 218:550 219:366 220:1207 221:492 222:317
223:153
End of report
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