Routing Table Report 00:00 GMT Fri 24 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: 366409
Prefixes after maximum aggregation: 165343
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 178483
Total ASes present in the Internet Routing Table: 38000
Prefixes per ASN: 9.64
Origin-only ASes present in the Internet Routing Table: 31704
Origin ASes announcing only one prefix: 15166
Transit ASes present in the Internet Routing Table: 5109
Transit-only ASes present in the Internet Routing Table: 128
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 28
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 3699
Unregistered ASNs in the Routing Table: 477
Number of 32-bit ASNs allocated by the RIRs: 1481
Number of 32-bit ASNs visible in the Routing Table: 1187
Prefixes from 32-bit ASNs in the Routing Table: 2755
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 141
Number of addresses announced to Internet: 2494054591
Equivalent to 148 /8s, 168 /16s and 64 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
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: 152319
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87758
Total APNIC prefixes after maximum aggregation: 29045
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 84673
Unique aggregates announced from the APNIC address blocks: 36031
APNIC Region origin ASes present in the Internet Routing Table: 4480
APNIC Prefixes per ASN: 18.90
APNIC Region origin ASes announcing only one prefix: 1261
APNIC Region transit ASes present in the Internet Routing Table: 702
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 51
Number of APNIC addresses announced to Internet: 622673345
Equivalent to 37 /8s, 29 /16s and 61 /24s
Percentage of available APNIC address space announced: 79.0
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: 144298
Total ARIN prefixes after maximum aggregation: 74450
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 115920
Unique aggregates announced from the ARIN address blocks: 46480
ARIN Region origin ASes present in the Internet Routing Table: 14444
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5496
ARIN Region transit ASes present in the Internet Routing Table: 1474
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 819228432
Equivalent to 48 /8s, 212 /16s and 111 /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: 89356
Total RIPE prefixes after maximum aggregation: 49262
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 81978
Unique aggregates announced from the RIPE address blocks: 52475
RIPE Region origin ASes present in the Internet Routing Table: 15782
RIPE Prefixes per ASN: 5.19
RIPE Region origin ASes announcing only one prefix: 7827
RIPE Region transit ASes present in the Internet Routing Table: 2499
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 876
Number of RIPE addresses announced to Internet: 478937036
Equivalent to 28 /8s, 139 /16s and 255 /24s
Percentage of available RIPE address space announced: 77.2
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: 33588
Total LACNIC prefixes after maximum aggregation: 7587
LACNIC Deaggregation factor: 4.43
Prefixes being announced from the LACNIC address blocks: 32650
Unique aggregates announced from the LACNIC address blocks: 16928
LACNIC Region origin ASes present in the Internet Routing Table: 1470
LACNIC Prefixes per ASN: 22.21
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 262
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 243
Number of LACNIC addresses announced to Internet: 85608712
Equivalent to 5 /8s, 26 /16s and 73 /24s
Percentage of available LACNIC address space announced: 56.7
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: 8353
Total AfriNIC prefixes after maximum aggregation: 1949
AfriNIC Deaggregation factor: 4.29
Prefixes being announced from the AfriNIC address blocks: 6428
Unique aggregates announced from the AfriNIC address blocks: 1951
AfriNIC Region origin ASes present in the Internet Routing Table: 459
AfriNIC Prefixes per ASN: 14.00
AfriNIC Region origin ASes announcing only one prefix: 144
AfriNIC Region transit ASes present in the Internet Routing Table: 102
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 24246528
Equivalent to 1 /8s, 113 /16s and 249 /24s
Percentage of available AfriNIC address space announced: 36.1
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 1902 9508 624 Korea Telecom (KIX)
17974 1842 467 44 PT TELEKOMUNIKASI INDONESIA
7545 1543 301 85 TPG Internet Pty Ltd
4755 1479 630 167 Videsh Sanchar Nigam Ltd. Aut
24560 1153 336 187 Bharti Airtel Ltd.
9583 1078 80 510 Sify Limited
4808 1036 2088 300 CNCGROUP IP network: China169
9829 1016 872 73 BSNL National Internet Backbo
17488 965 179 110 Hathway IP Over Cable Interne
18101 933 116 139 Reliance Infocom Ltd Internet
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 3622 3819 251 bellsouth.net, inc.
18566 1957 372 223 Covad Communications
1785 1797 681 122 AppliedTheory Corporation
4323 1662 1097 399 Time Warner Telecom
20115 1568 1531 634 Charter Communications
6478 1499 276 522 AT&T Worldnet Services
19262 1454 4812 374 Verizon Global Networks
7029 1388 971 209 Alltel Information Services,
7018 1378 7086 906 AT&T WorldNet Services
22773 1342 2897 87 Cox Communications, Inc.
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 798 193 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 529 107 182 Tellcom Iletisim Hizmetleri
3292 523 2080 405 TDC Tele Danmark
6830 517 1780 321 UPC Distribution Services
20940 473 138 363 Akamai Technologies European
8866 445 134 26 Bulgarian Telecommunication C
29049 445 33 45 AzerSat LLC.
12479 438 593 7 Uni2 Autonomous System
35819 426 78 11 Bayanat Al-Oula Autonomous Sy
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 1532 281 157 TVCABLE BOGOTA
8151 1433 2718 364 Uninet S.A. de C.V.
28573 1266 993 78 Types of queries are: POCs, o
7303 992 507 169 Telecom Argentina Stet-France
6503 752 354 75 AVANTEL, S.A.
14420 683 55 82 Types of queries are: POCs, o
22047 576 322 17 Types of queries are: POCs, o
3816 534 231 94 COLOMBIA TELECOMUNICACIONES S
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 513 53 47 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 797 147 36 LINKdotNET AS number
8452 792 445 11 TEDATA
15475 525 74 8 Nile Online
36992 310 415 14 Etisalat MISR
16637 294 440 86 Johnnic e-Ventures
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
24835 211 78 10 RAYA Telecom - Egypt
33776 207 12 10 Starcomms Nigeria Limited
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 3622 3819 251 bellsouth.net, inc.
23456 2755 671 1478 >>UNKNOWN<<
18566 1957 372 223 Covad Communications
4766 1902 9508 624 Korea Telecom (KIX)
17974 1842 467 44 PT TELEKOMUNIKASI INDONESIA
1785 1797 681 122 AppliedTheory Corporation
4323 1662 1097 399 Time Warner Telecom
20115 1568 1531 634 Charter Communications
7545 1543 301 85 TPG Internet Pty Ltd
10620 1532 281 157 TVCABLE BOGOTA
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
17974 1842 1798 PT TELEKOMUNIKASI INDONESIA
18566 1957 1734 Covad Communications
1785 1797 1675 AppliedTheory Corporation
7545 1543 1458 TPG Internet Pty Ltd
10620 1532 1375 TVCABLE BOGOTA
4755 1479 1312 Videsh Sanchar Nigam Ltd. Aut
4766 1902 1278 Korea Telecom (KIX)
23456 2755 1277 >>UNKNOWN<<
4323 1662 1263 Time Warner Telecom
22773 1342 1255 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.
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 /12:231
/13:461 /14:806 /15:1423 /16:12079 /17:6120 /18:10034
/19:19929 /20:26626 /21:26525 /22:34914 /23:34010 /24:190162
/25:377 /26:351 /27:184 /28:354 /29:282 /30:694
/31:76 /32:627
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2225 3622 bellsouth.net, inc.
18566 1907 1957 Covad Communications
6478 1466 1499 AT&T Worldnet Services
10620 1427 1532 TVCABLE BOGOTA
23456 1370 2755 >>UNKNOWN<<
11492 1090 1136 Cable One
7029 1082 1388 Alltel Information Services,
7011 1058 1159 Citizens Utilities
1785 1050 1797 AppliedTheory Corporation
286 908 1050 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:298 2:68 4:20 5:1 6:3 8:337
12:1982 13:1 14:468 15:15 16:3 17:8
20:10 23:11 24:1668 27:806 31:481 32:128
33:4 34:2 37:1 38:739 39:3 40:103
41:2525 42:2 44:3 46:998 47:3 49:197
50:415 52:13 54:2 55:3 56:2 57:42
58:840 59:475 60:386 61:1183 62:1070 63:1954
64:3961 65:2287 66:3908 67:1935 68:1269 69:3123
70:799 71:381 72:1906 73:2 74:2431 75:332
76:348 77:925 78:710 79:484 80:1120 81:848
82:511 83:465 84:677 85:1090 86:570 87:778
88:339 89:1564 90:209 91:3890 92:537 93:1081
94:1335 95:857 96:447 97:249 98:896 99:36
101:75 103:90 106:10 107:15 108:80 109:1017
110:615 111:708 112:305 113:409 114:549 115:667
116:978 117:674 118:852 119:1141 120:311 121:690
122:1634 123:959 124:1303 125:1240 128:248 129:175
130:168 131:578 132:112 133:21 134:215 135:48
136:215 137:138 138:300 139:126 140:486 141:238
142:406 143:422 144:487 145:54 146:451 147:225
148:663 149:247 150:170 151:190 152:328 153:180
154:4 155:391 156:195 157:353 158:138 159:452
160:313 161:209 162:310 163:162 164:506 165:371
166:533 167:433 168:739 169:159 170:842 171:77
172:1 173:1647 174:609 175:374 176:137 177:155
178:1016 180:903 181:19 182:489 183:222 184:387
185:1 186:1235 187:738 188:892 189:912 190:4909
192:5908 193:4992 194:3545 195:3170 196:1229 197:41
198:3598 199:3960 200:5554 201:1504 202:8354 203:8430
204:4206 205:2347 206:2752 207:2813 208:3966 209:3481
210:2734 211:1463 212:2150 213:1775 214:769 215:69
216:4955 217:1637 218:551 219:365 220:1211 221:493
222:360 223:161
End of report
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