Routing Table Report 00:00 GMT Mon 13 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: 364461
Prefixes after maximum aggregation: 164102
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 178326
Total ASes present in the Internet Routing Table: 37873
Prefixes per ASN: 9.62
Origin-only ASes present in the Internet Routing Table: 31626
Origin ASes announcing only one prefix: 15142
Transit ASes present in the Internet Routing Table: 5097
Transit-only ASes present in the Internet Routing Table: 130
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 25
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 3566
Unregistered ASNs in the Routing Table: 447
Number of 32-bit ASNs allocated by the RIRs: 1450
Number of 32-bit ASNs visible in the Routing Table: 1150
Prefixes from 32-bit ASNs in the Routing Table: 2678
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 159
Number of addresses announced to Internet: 2488639688
Equivalent to 148 /8s, 85 /16s and 160 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.1
Total number of prefixes smaller than registry allocations: 151955
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87079
Total APNIC prefixes after maximum aggregation: 28999
APNIC Deaggregation factor: 3.00
Prefixes being announced from the APNIC address blocks: 83642
Unique aggregates announced from the APNIC address blocks: 36712
APNIC Region origin ASes present in the Internet Routing Table: 4465
APNIC Prefixes per ASN: 18.73
APNIC Region origin ASes announcing only one prefix: 1271
APNIC Region transit ASes present in the Internet Routing Table: 687
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 22
Number of APNIC region 32-bit ASNs visible in the Routing Table: 46
Number of APNIC addresses announced to Internet: 620181698
Equivalent to 36 /8s, 247 /16s and 56 /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, 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: 144033
Total ARIN prefixes after maximum aggregation: 73586
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 115650
Unique aggregates announced from the ARIN address blocks: 46016
ARIN Region origin ASes present in the Internet Routing Table: 14433
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5491
ARIN Region transit ASes present in the Internet Routing Table: 1492
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 818728216
Equivalent to 48 /8s, 204 /16s and 205 /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: 88847
Total RIPE prefixes after maximum aggregation: 49079
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 81520
Unique aggregates announced from the RIPE address blocks: 52202
RIPE Region origin ASes present in the Internet Routing Table: 15726
RIPE Prefixes per ASN: 5.18
RIPE Region origin ASes announcing only one prefix: 7803
RIPE Region transit ASes present in the Internet Routing Table: 2482
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 22
Number of RIPE region 32-bit ASNs visible in the Routing Table: 852
Number of RIPE addresses announced to Internet: 477651660
Equivalent to 28 /8s, 120 /16s and 98 /24s
Percentage of available RIPE address space announced: 76.9
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: 33278
Total LACNIC prefixes after maximum aggregation: 7541
LACNIC Deaggregation factor: 4.41
Prefixes being announced from the LACNIC address blocks: 32342
Unique aggregates announced from the LACNIC address blocks: 16972
LACNIC Region origin ASes present in the Internet Routing Table: 1462
LACNIC Prefixes per ASN: 22.12
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 259
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 235
Number of LACNIC addresses announced to Internet: 84857608
Equivalent to 5 /8s, 14 /16s and 211 /24s
Percentage of available LACNIC address space announced: 56.2
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: 8248
Total AfriNIC prefixes after maximum aggregation: 1914
AfriNIC Deaggregation factor: 4.31
Prefixes being announced from the AfriNIC address blocks: 6337
Unique aggregates announced from the AfriNIC address blocks: 1863
AfriNIC Region origin ASes present in the Internet Routing Table: 458
AfriNIC Prefixes per ASN: 13.84
AfriNIC Region origin ASes announcing only one prefix: 142
AfriNIC Region transit ASes present in the Internet Routing Table: 102
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 24138752
Equivalent to 1 /8s, 112 /16s and 84 /24s
Percentage of available AfriNIC address space announced: 36.0
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 1905 9508 621 Korea Telecom (KIX)
17974 1550 439 35 PT TELEKOMUNIKASI INDONESIA
7545 1537 301 86 TPG Internet Pty Ltd
4755 1469 374 164 Videsh Sanchar Nigam Ltd. Aut
24560 1153 336 187 Bharti Airtel Ltd.
7552 1146 1064 7 Vietel Corporation
9583 1081 80 509 Sify Limited
9829 1040 878 60 BSNL National Internet Backbo
4808 1020 2081 297 CNCGROUP IP network: China169
17488 961 191 102 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 3627 3822 253 bellsouth.net, inc.
4323 1962 1097 400 Time Warner Telecom
18566 1957 372 219 Covad Communications
1785 1795 680 121 AppliedTheory Corporation
6478 1728 319 50 AT&T Worldnet Services
20115 1589 1544 632 Charter Communications
19262 1493 4920 308 Verizon Global Networks
7018 1374 7085 902 AT&T WorldNet Services
22773 1340 2897 87 Cox Communications, Inc.
2386 1271 537 911 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 1050 798 191 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 521 106 180 Tellcom Iletisim Hizmetleri
3292 517 2078 400 TDC Tele Danmark
6830 515 1780 321 UPC Distribution Services
20940 468 136 358 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 436 593 7 Uni2 Autonomous System
3320 425 8152 370 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 1513 278 157 TVCABLE BOGOTA
28573 1321 992 80 Types of queries are: POCs, o
8151 1271 2708 363 Uninet S.A. de C.V.
7303 990 506 170 Telecom Argentina Stet-France
6503 740 354 74 AVANTEL, S.A.
14420 677 54 80 Types of queries are: POCs, o
22047 564 310 15 Types of queries are: POCs, o
3816 533 231 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
24863 796 147 38 LINKdotNET AS number
8452 785 445 11 TEDATA
15475 529 74 8 Nile Online
36992 307 415 16 Etisalat MISR
16637 294 441 87 Johnnic e-Ventures
3741 264 937 225 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 218 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 3627 3822 253 bellsouth.net, inc.
23456 2678 651 1445 >>UNKNOWN<<
4323 1962 1097 400 Time Warner Telecom
18566 1957 372 219 Covad Communications
4766 1905 9508 621 Korea Telecom (KIX)
1785 1795 680 121 AppliedTheory Corporation
6478 1728 319 50 AT&T Worldnet Services
20115 1589 1544 632 Charter Communications
17974 1550 439 35 PT TELEKOMUNIKASI INDONESIA
7545 1537 301 86 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
18566 1957 1738 Covad Communications
6478 1728 1678 AT&T Worldnet Services
1785 1795 1674 AppliedTheory Corporation
4323 1962 1562 Time Warner Telecom
17974 1550 1515 PT TELEKOMUNIKASI INDONESIA
7545 1537 1451 TPG Internet Pty Ltd
10620 1513 1356 TVCABLE BOGOTA
4755 1469 1305 Videsh Sanchar Nigam Ltd. Aut
4766 1905 1284 Korea Telecom (KIX)
22773 1340 1253 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 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
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.
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
41.190.36.0/23 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 /8:23 /9:12 /10:28 /11:81 /12:230
/13:462 /14:806 /15:1422 /16:12065 /17:6107 /18:10099
/19:19905 /20:26684 /21:26461 /22:34678 /23:33773 /24:188843
/25:381 /26:351 /27:183 /28:182 /29:278 /30:682
/31:76 /32:649
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2230 3627 bellsouth.net, inc.
18566 1908 1957 Covad Communications
6478 1682 1728 AT&T Worldnet Services
10620 1403 1513 TVCABLE BOGOTA
23456 1335 2678 >>UNKNOWN<<
11492 1090 1136 Cable One
7011 1061 1161 Citizens Utilities
1785 1049 1795 AppliedTheory Corporation
7029 935 1234 Alltel Information Services,
286 909 1050 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:287 2:67 4:20 5:1 6:3 8:337
12:1977 13:1 14:461 15:15 16:3 17:8
20:10 23:11 24:1625 27:780 31:434 32:124
33:4 34:2 37:1 38:733 40:103 41:2509
42:2 44:3 46:963 47:3 49:188 50:408
52:13 54:2 55:3 56:2 57:42 58:844
59:477 60:387 61:1123 62:1069 63:1950 64:3965
65:2249 66:4162 67:1911 68:1264 69:3109 70:749
71:377 72:1882 73:2 74:2408 75:323 76:349
77:921 78:710 79:480 80:1116 81:842 82:508
83:480 84:675 85:1090 86:600 87:775 88:336
89:1568 90:204 91:3859 92:527 93:1065 94:1341
95:855 96:446 97:251 98:879 99:36 101:68
103:59 106:6 107:11 108:82 109:979 110:607
111:711 112:301 113:397 114:544 115:689 116:974
117:675 118:795 119:1138 120:310 121:690 122:1628
123:950 124:1267 125:1219 128:266 129:178 130:164
131:579 132:110 133:19 134:215 135:48 136:214
137:143 138:301 139:124 140:480 141:239 142:406
143:414 144:490 145:54 146:447 147:223 148:655
149:246 150:172 151:187 152:329 153:180 154:3
155:399 156:195 157:354 158:137 159:380 160:318
161:207 162:309 163:165 164:500 165:371 166:530
167:423 168:739 169:156 170:836 171:77 172:1
173:1624 174:587 175:371 176:134 177:156 178:1007
180:894 181:18 182:471 183:218 184:379 185:1
186:1211 187:774 188:866 189:917 190:4897 192:5869
193:4928 194:3553 195:3132 196:1239 197:20 198:3597
199:3931 200:5499 201:1479 202:8316 203:8339 204:4195
205:2347 206:2760 207:2830 208:3957 209:3482 210:2719
211:1404 212:2058 213:1769 214:738 215:69 216:4942
217:1663 218:551 219:365 220:1209 221:493 222:317
223:156
End of report
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