Routing Table Report 00:00 GMT Thu 23 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: 366399
Prefixes after maximum aggregation: 165021
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 178622
Total ASes present in the Internet Routing Table: 37975
Prefixes per ASN: 9.65
Origin-only ASes present in the Internet Routing Table: 31679
Origin ASes announcing only one prefix: 15159
Transit ASes present in the Internet Routing Table: 5120
Transit-only ASes present in the Internet Routing Table: 123
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 27
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 3684
Unregistered ASNs in the Routing Table: 478
Number of 32-bit ASNs allocated by the RIRs: 1475
Number of 32-bit ASNs visible in the Routing Table: 1176
Prefixes from 32-bit ASNs in the Routing Table: 2727
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 144
Number of addresses announced to Internet: 2494409407
Equivalent to 148 /8s, 173 /16s and 170 /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: 152438
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87819
Total APNIC prefixes after maximum aggregation: 29073
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 84491
Unique aggregates announced from the APNIC address blocks: 36193
APNIC Region origin ASes present in the Internet Routing Table: 4478
APNIC Prefixes per ASN: 18.87
APNIC Region origin ASes announcing only one prefix: 1260
APNIC Region transit ASes present in the Internet Routing Table: 692
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: 50
Number of APNIC addresses announced to Internet: 622748097
Equivalent to 37 /8s, 30 /16s and 97 /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: 144332
Total ARIN prefixes after maximum aggregation: 74120
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 115935
Unique aggregates announced from the ARIN address blocks: 46477
ARIN Region origin ASes present in the Internet Routing Table: 14449
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5496
ARIN Region transit ASes present in the Internet Routing Table: 1507
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 27
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 819635984
Equivalent to 48 /8s, 218 /16s and 167 /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: 89256
Total RIPE prefixes after maximum aggregation: 49233
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 81910
Unique aggregates announced from the RIPE address blocks: 52461
RIPE Region origin ASes present in the Internet Routing Table: 15766
RIPE Prefixes per ASN: 5.20
RIPE Region origin ASes announcing only one prefix: 7823
RIPE Region transit ASes present in the Internet Routing Table: 2460
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 868
Number of RIPE addresses announced to Internet: 478777036
Equivalent to 28 /8s, 137 /16s and 142 /24s
Percentage of available RIPE address space announced: 77.1
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: 33547
Total LACNIC prefixes after maximum aggregation: 7608
LACNIC Deaggregation factor: 4.41
Prefixes being announced from the LACNIC address blocks: 32602
Unique aggregates announced from the LACNIC address blocks: 16909
LACNIC Region origin ASes present in the Internet Routing Table: 1472
LACNIC Prefixes per ASN: 22.15
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 267
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 21
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 242
Number of LACNIC addresses announced to Internet: 85585160
Equivalent to 5 /8s, 25 /16s and 237 /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: 8402
Total AfriNIC prefixes after maximum aggregation: 1958
AfriNIC Deaggregation factor: 4.29
Prefixes being announced from the AfriNIC address blocks: 6489
Unique aggregates announced from the AfriNIC address blocks: 1974
AfriNIC Region origin ASes present in the Internet Routing Table: 462
AfriNIC Prefixes per ASN: 14.05
AfriNIC Region origin ASes announcing only one prefix: 142
AfriNIC Region transit ASes present in the Internet Routing Table: 103
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 24310016
Equivalent to 1 /8s, 114 /16s and 241 /24s
Percentage of available AfriNIC address space announced: 36.2
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 1900 9492 622 Korea Telecom (KIX)
17974 1853 459 44 PT TELEKOMUNIKASI INDONESIA
7545 1541 301 86 TPG Internet Pty Ltd
4755 1478 374 166 Videsh Sanchar Nigam Ltd. Aut
24560 1153 336 187 Bharti Airtel Ltd.
9583 1070 78 502 Sify Limited
7552 1061 1061 10 Vietel Corporation
9829 1033 878 68 BSNL National Internet Backbo
17488 967 182 103 Hathway IP Over Cable Interne
18101 932 116 139 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 3624 3819 250 bellsouth.net, inc.
18566 1956 372 222 Covad Communications
1785 1800 681 122 AppliedTheory Corporation
4323 1661 1097 399 Time Warner Telecom
6478 1641 298 276 AT&T Worldnet Services
20115 1575 1531 634 Charter Communications
19262 1493 4920 308 Verizon Global Networks
7018 1359 6942 887 AT&T WorldNet Services
7029 1350 815 310 Alltel Information 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 528 107 182 Tellcom Iletisim Hizmetleri
3292 523 2080 405 TDC Tele Danmark
6830 517 1780 321 UPC Distribution Services
20940 467 137 358 Akamai Technologies European
29049 447 33 46 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 437 593 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 1524 280 156 TVCABLE BOGOTA
8151 1429 2716 362 Uninet S.A. de C.V.
28573 1266 993 78 Types of queries are: POCs, o
7303 991 506 169 Telecom Argentina Stet-France
6503 752 354 75 AVANTEL, S.A.
14420 683 55 82 Types of queries are: POCs, o
22047 573 322 17 Types of queries are: POCs, o
3816 531 229 98 COLOMBIA TELECOMUNICACIONES S
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 512 53 52 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 789 445 11 TEDATA
15475 525 74 8 Nile Online
36992 310 415 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 216 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 3624 3819 250 bellsouth.net, inc.
23456 2727 667 1468 >>UNKNOWN<<
18566 1956 372 222 Covad Communications
4766 1900 9492 622 Korea Telecom (KIX)
17974 1853 459 44 PT TELEKOMUNIKASI INDONESIA
1785 1800 681 122 AppliedTheory Corporation
4323 1661 1097 399 Time Warner Telecom
6478 1641 298 276 AT&T Worldnet Services
20115 1575 1531 634 Charter Communications
7545 1541 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
17974 1853 1809 PT TELEKOMUNIKASI INDONESIA
18566 1956 1734 Covad Communications
1785 1800 1678 AppliedTheory Corporation
7545 1541 1455 TPG Internet Pty Ltd
10620 1524 1368 TVCABLE BOGOTA
6478 1641 1365 AT&T Worldnet Services
4755 1478 1312 Videsh Sanchar Nigam Ltd. Aut
4766 1900 1278 Korea Telecom (KIX)
4323 1661 1262 Time Warner Telecom
23456 2727 1259 >>UNKNOWN<<
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 4323 Time Warner Telecom
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 /16:12089 /17:6119 /18:10098
/19:19932 /20:26899 /21:26522 /22:34856 /23:33913 /24:189954
/25:379 /26:355 /27:185 /28:356 /29:279 /30:695
/31:76 /32:627
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2227 3624 bellsouth.net, inc.
18566 1907 1956 Covad Communications
6478 1604 1641 AT&T Worldnet Services
10620 1419 1524 TVCABLE BOGOTA
23456 1352 2727 >>UNKNOWN<<
11492 1090 1136 Cable One
7029 1074 1350 Alltel Information Services,
7011 1058 1159 Citizens Utilities
1785 1050 1800 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)
----------------------------------------------
1:297 2:66 4:20 5:1 6:3 8:337
12:1976 13:1 14:466 15:15 16:3 17:8
20:10 23:11 24:1669 27:795 31:477 32:128
33:4 34:2 37:1 38:739 39:3 40:103
41:2539 42:2 44:3 46:980 47:3 49:193
50:414 52:13 54:2 55:4 56:2 57:42
58:839 59:475 60:386 61:1184 62:1073 63:1954
64:3967 65:2291 66:3886 67:1934 68:1269 69:3151
70:800 71:380 72:1921 73:2 74:2431 75:333
76:347 77:924 78:710 79:480 80:1124 81:849
82:511 83:467 84:678 85:1089 86:572 87:778
88:335 89:1569 90:209 91:3877 92:536 93:1081
94:1342 95:844 96:447 97:250 98:896 99:36
101:75 103:86 106:10 107:15 108:81 109:1019
110:617 111:704 112:305 113:409 114:549 115:664
116:984 117:670 118:853 119:1144 120:311 121:690
122:1630 123:957 124:1263 125:1241 128:248 129:175
130:167 131:577 132:112 133:21 134:215 135:45
136:215 137:138 138:300 139:126 140:483 141:238
142:406 143:423 144:491 145:54 146:451 147:224
148:662 149:247 150:172 151:190 152:333 153:180
154:4 155:398 156:194 157:353 158:138 159:391
160:316 161:208 162:310 163:162 164:506 165:371
166:533 167:433 168:740 169:159 170:842 171:77
172:1 173:1643 174:608 175:373 176:137 177:155
178:1014 180:903 181:19 182:488 183:223 184:387
185:1 186:1235 187:735 188:887 189:907 190:4898
192:5914 193:4990 194:3546 195:3169 196:1227 197:40
198:3608 199:3956 200:5544 201:1496 202:8362 203:8433
204:4202 205:2345 206:2757 207:2813 208:3958 209:3470
210:2709 211:1432 212:2148 213:1784 214:771 215:69
216:4956 217:1642 218:550 219:365 220:1206 221:493
222:360 223:161
End of report
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