Routing Table Report 00:00 GMT Mon 27 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: 366709
Prefixes after maximum aggregation: 165527
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 178845
Total ASes present in the Internet Routing Table: 38031
Prefixes per ASN: 9.64
Origin-only ASes present in the Internet Routing Table: 31692
Origin ASes announcing only one prefix: 15174
Transit ASes present in the Internet Routing Table: 5146
Transit-only ASes present in the Internet Routing Table: 132
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 28
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 3704
Unregistered ASNs in the Routing Table: 485
Number of 32-bit ASNs allocated by the RIRs: 1499
Number of 32-bit ASNs visible in the Routing Table: 1193
Prefixes from 32-bit ASNs in the Routing Table: 2744
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 135
Number of addresses announced to Internet: 2494236143
Equivalent to 148 /8s, 171 /16s and 5 /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: 152521
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87854
Total APNIC prefixes after maximum aggregation: 29179
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 84693
Unique aggregates announced from the APNIC address blocks: 36325
APNIC Region origin ASes present in the Internet Routing Table: 4481
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: 705
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 52
Number of APNIC addresses announced to Internet: 622756801
Equivalent to 37 /8s, 30 /16s and 131 /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: 144334
Total ARIN prefixes after maximum aggregation: 74434
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 116008
Unique aggregates announced from the ARIN address blocks: 46545
ARIN Region origin ASes present in the Internet Routing Table: 14453
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5507
ARIN Region transit ASes present in the Internet Routing Table: 1491
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: 819335440
Equivalent to 48 /8s, 214 /16s and 17 /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: 89405
Total RIPE prefixes after maximum aggregation: 49278
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 81995
Unique aggregates announced from the RIPE address blocks: 52439
RIPE Region origin ASes present in the Internet Routing Table: 15788
RIPE Prefixes per ASN: 5.19
RIPE Region origin ASes announcing only one prefix: 7823
RIPE Region transit ASes present in the Internet Routing Table: 2499
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 878
Number of RIPE addresses announced to Internet: 479048444
Equivalent to 28 /8s, 141 /16s and 178 /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: 33639
Total LACNIC prefixes after maximum aggregation: 7615
LACNIC Deaggregation factor: 4.42
Prefixes being announced from the LACNIC address blocks: 32706
Unique aggregates announced from the LACNIC address blocks: 16937
LACNIC Region origin ASes present in the Internet Routing Table: 1472
LACNIC Prefixes per ASN: 22.22
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 264
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: 246
Number of LACNIC addresses announced to Internet: 85636360
Equivalent to 5 /8s, 26 /16s and 181 /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: 8429
Total AfriNIC prefixes after maximum aggregation: 1967
AfriNIC Deaggregation factor: 4.29
Prefixes being announced from the AfriNIC address blocks: 6486
Unique aggregates announced from the AfriNIC address blocks: 1980
AfriNIC Region origin ASes present in the Internet Routing Table: 462
AfriNIC Prefixes per ASN: 14.04
AfriNIC Region origin ASes announcing only one prefix: 142
AfriNIC Region transit ASes present in the Internet Routing Table: 106
Average AfriNIC Region AS path length visible: 3.8
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: 24245504
Equivalent to 1 /8s, 113 /16s and 245 /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 1901 9492 623 Korea Telecom (KIX)
17974 1863 468 42 PT TELEKOMUNIKASI INDONESIA
7545 1542 301 85 TPG Internet Pty Ltd
4755 1476 374 166 Videsh Sanchar Nigam Ltd. Aut
24560 1153 336 187 Bharti Airtel Ltd.
9583 1079 80 510 Sify Limited
9829 1049 887 56 BSNL National Internet Backbo
4808 1036 2088 300 CNCGROUP IP network: China169
17488 972 185 103 Hathway IP Over Cable Interne
18101 933 116 140 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 3626 3819 250 bellsouth.net, inc.
18566 1957 372 223 Covad Communications
1785 1797 681 122 AppliedTheory Corporation
4323 1662 1097 399 Time Warner Telecom
20115 1589 1531 634 Charter Communications
6478 1499 276 522 AT&T Worldnet Services
19262 1451 4805 372 Verizon Global Networks
7029 1386 971 208 Windstream Communications Inc
7018 1379 7086 907 AT&T WorldNet Services
22773 1347 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 1052 798 193 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 530 107 183 Tellcom Iletisim Hizmetleri
3292 525 2080 405 TDC Tele Danmark
6830 516 1780 320 UPC Distribution Services
20940 474 138 364 Akamai Technologies European
8866 445 134 26 Bulgarian Telecommunication C
29049 444 33 45 AzerSat LLC.
12479 436 593 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 1431 2720 365 Uninet S.A. de C.V.
28573 1266 993 78 Types of queries are: POCs, o
7303 992 507 171 Telecom Argentina Stet-France
6503 752 354 75 AVANTEL, S.A.
14420 684 55 83 Types of queries are: POCs, o
22047 576 322 17 Types of queries are: POCs, o
3816 533 231 93 COLOMBIA TELECOMUNICACIONES S
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 515 54 48 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 37 LINKdotNET AS number
8452 793 445 11 TEDATA
15475 524 74 8 Nile Online
36992 316 415 14 Etisalat MISR
16637 295 441 87 Johnnic e-Ventures
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 215 12 11 Starcomms Nigeria Limited
24835 211 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 3626 3819 250 bellsouth.net, inc.
23456 2744 676 1480 >>UNKNOWN<<
18566 1957 372 223 Covad Communications
4766 1901 9492 623 Korea Telecom (KIX)
17974 1863 468 42 PT TELEKOMUNIKASI INDONESIA
1785 1797 681 122 AppliedTheory Corporation
4323 1662 1097 399 Time Warner Telecom
20115 1589 1531 634 Charter Communications
7545 1542 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 1863 1821 PT TELEKOMUNIKASI INDONESIA
18566 1957 1734 Covad Communications
1785 1797 1675 AppliedTheory Corporation
7545 1542 1457 TPG Internet Pty Ltd
10620 1532 1375 TVCABLE BOGOTA
4755 1476 1310 Videsh Sanchar Nigam Ltd. Aut
4766 1901 1278 Korea Telecom (KIX)
23456 2744 1264 >>UNKNOWN<<
4323 1662 1263 Time Warner Telecom
22773 1347 1260 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 /12:231
/13:462 /14:807 /15:1425 /16:12082 /17:6117 /18:10041
/19:19946 /20:26729 /21:26548 /22:34935 /23:34023 /24:190244
/25:386 /26:360 /27:185 /28:355 /29:282 /30:699
/31:76 /32:632
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2229 3626 bellsouth.net, inc.
18566 1907 1957 Covad Communications
6478 1466 1499 AT&T Worldnet Services
10620 1427 1532 TVCABLE BOGOTA
23456 1351 2744 >>UNKNOWN<<
11492 1090 1136 Cable One
7029 1082 1386 Windstream Communications Inc
7011 1056 1157 Citizens Utilities
1785 1050 1797 AppliedTheory Corporation
286 910 1052 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 2:67 4:20 5:1 6:3 8:337
12:1982 13:1 14:463 15:15 16:3 17:8
20:10 23:12 24:1671 27:803 31:486 32:128
33:4 34:2 37:1 38:738 39:3 40:103
41:2539 42:2 44:3 46:1004 47:3 49:196
50:413 52:13 54:2 55:4 56:2 57:42
58:864 59:478 60:386 61:1182 62:1058 63:1956
64:3971 65:2286 66:3907 67:1933 68:1270 69:3131
70:802 71:391 72:1923 73:2 74:2435 75:333
76:348 77:913 78:715 79:486 80:1105 81:827
82:512 83:464 84:679 85:1089 86:571 87:778
88:338 89:1566 90:209 91:3893 92:537 93:1080
94:1357 95:855 96:447 97:254 98:899 99:36
101:77 103:90 106:10 107:16 108:80 109:1001
110:613 111:709 112:306 113:407 114:550 115:669
116:978 117:670 118:857 119:1147 120:312 121:690
122:1617 123:958 124:1304 125:1242 128:248 129:175
130:168 131:573 132:111 133:21 134:215 135:48
136:214 137:138 138:300 139:126 140:479 141:239
142:406 143:407 144:484 145:54 146:449 147:224
148:661 149:248 150:165 151:190 152:332 153:180
154:4 155:396 156:195 157:351 158:138 159:452
160:314 161:210 162:310 163:165 164:506 165:372
166:534 167:433 168:739 169:158 170:845 171:78
172:1 173:1649 174:611 175:373 176:139 177:156
178:1012 180:903 181:19 182:488 183:223 184:388
185:1 186:1240 187:738 188:896 189:931 190:4911
192:5913 193:4998 194:3546 195:3171 196:1233 197:41
198:3604 199:3960 200:5560 201:1506 202:8352 203:8431
204:4210 205:2353 206:2758 207:2814 208:3962 209:3479
210:2709 211:1464 212:2155 213:1782 214:754 215:70
216:4955 217:1644 218:552 219:366 220:1206 221:493
222:361 223:157
End of report
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