Routing Table Report 00:00 GMT Tue 13 Sep, 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: 375394
Prefixes after maximum aggregation: 168549
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 179057
Total ASes present in the Internet Routing Table: 38760
Prefixes per ASN: 9.69
Origin-only ASes present in the Internet Routing Table: 32201
Origin ASes announcing only one prefix: 15466
Transit ASes present in the Internet Routing Table: 5160
Transit-only ASes present in the Internet Routing Table: 129
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 46
Max AS path prepend of ASN (50137) 41
Prefixes from unregistered ASNs in the Routing Table: 4479
Unregistered ASNs in the Routing Table: 714
Number of 32-bit ASNs allocated by the RIRs: 1721
Number of 32-bit ASNs visible in the Routing Table: 1399
Prefixes from 32-bit ASNs in the Routing Table: 3233
Special use prefixes present in the Routing Table: 82
Prefixes being announced from unallocated address space: 101
Number of addresses announced to Internet: 2307615382
Equivalent to 137 /8s, 139 /16s and 106 /24s
Percentage of available address space announced: 62.3
Percentage of allocated address space announced: 62.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 155405
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91816
Total APNIC prefixes after maximum aggregation: 29490
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 88458
Unique aggregates announced from the APNIC address blocks: 36856
APNIC Region origin ASes present in the Internet Routing Table: 4552
APNIC Prefixes per ASN: 19.43
APNIC Region origin ASes announcing only one prefix: 1268
APNIC Region transit ASes present in the Internet Routing Table: 711
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 83
Number of APNIC addresses announced to Internet: 610336512
Equivalent to 36 /8s, 96 /16s and 255 /24s
Percentage of available APNIC address space announced: 77.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 146680
Total ARIN prefixes after maximum aggregation: 75478
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 118159
Unique aggregates announced from the ARIN address blocks: 44803
ARIN Region origin ASes present in the Internet Routing Table: 14655
ARIN Prefixes per ASN: 8.06
ARIN Region origin ASes announcing only one prefix: 5626
ARIN Region transit ASes present in the Internet Routing Table: 1516
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 36
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 667361692
Equivalent to 39 /8s, 199 /16s and 33 /24s
Percentage of available ARIN address space announced: 53.0
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: 90039
Total RIPE prefixes after maximum aggregation: 50163
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 82287
Unique aggregates announced from the RIPE address blocks: 52746
RIPE Region origin ASes present in the Internet Routing Table: 15972
RIPE Prefixes per ASN: 5.15
RIPE Region origin ASes announcing only one prefix: 7964
RIPE Region transit ASes present in the Internet Routing Table: 2485
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 46
Number of RIPE region 32-bit ASNs visible in the Routing Table: 998
Number of RIPE addresses announced to Internet: 473902284
Equivalent to 28 /8s, 63 /16s and 44 /24s
Percentage of available RIPE address space announced: 76.3
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: 35037
Total LACNIC prefixes after maximum aggregation: 7773
LACNIC Deaggregation factor: 4.51
Prefixes being announced from the LACNIC address blocks: 34263
Unique aggregates announced from the LACNIC address blocks: 17668
LACNIC Region origin ASes present in the Internet Routing Table: 1523
LACNIC Prefixes per ASN: 22.50
LACNIC Region origin ASes announcing only one prefix: 457
LACNIC Region transit ASes present in the Internet Routing Table: 274
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: 302
Number of LACNIC addresses announced to Internet: 88393992
Equivalent to 5 /8s, 68 /16s and 201 /24s
Percentage of available LACNIC address space announced: 58.5
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: 8395
Total AfriNIC prefixes after maximum aggregation: 2069
AfriNIC Deaggregation factor: 4.06
Prefixes being announced from the AfriNIC address blocks: 6497
Unique aggregates announced from the AfriNIC address blocks: 2019
AfriNIC Region origin ASes present in the Internet Routing Table: 482
AfriNIC Prefixes per ASN: 13.48
AfriNIC Region origin ASes announcing only one prefix: 151
AfriNIC Region transit ASes present in the Internet Routing Table: 108
Average AfriNIC Region AS path length visible: 4.1
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: 27321344
Equivalent to 1 /8s, 160 /16s and 228 /24s
Percentage of available AfriNIC address space announced: 40.7
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
17974 2008 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1943 11039 648 Korea Telecom (KIX)
7545 1585 301 83 TPG Internet Pty Ltd
4755 1543 638 168 Videsh Sanchar Nigam Ltd. Aut
7552 1415 1064 7 Vietel Corporation
24560 1178 336 193 Bharti Airtel Ltd.
9829 1152 989 28 BSNL National Internet Backbo
9583 1080 80 504 Sify Limited
17488 1004 192 158 Hathway IP Over Cable Interne
18101 950 118 139 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 3566 3817 226 bellsouth.net, inc.
18566 1912 364 237 Covad Communications
1785 1822 680 123 AppliedTheory Corporation
7029 1627 1037 210 Windstream Communications Inc
4323 1622 1101 394 Time Warner Telecom
20115 1592 1541 632 Charter Communications
22773 1453 2907 99 Cox Communications, Inc.
19262 1395 4724 399 Verizon Global Networks
7018 1339 7068 877 AT&T WorldNet Services
30036 1328 244 688 Mediacom Communications Corp
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 1070 824 198 KPNQwest Backbone AS
34984 548 107 178 Tellcom Iletisim Hizmetleri
9116 539 326 31 Goldenlines main autonomous s
6830 527 1811 322 UPC Distribution Services
3292 524 2080 404 TDC Tele Danmark
20940 506 157 393 Akamai Technologies European
12479 469 594 8 Uni2 Autonomous System
8866 460 133 26 Bulgarian Telecommunication C
3320 431 8152 375 Deutsche Telekom AG
29049 424 31 55 AzerSat LLC.
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 1661 305 161 TVCABLE BOGOTA
8151 1446 2783 355 Uninet S.A. de C.V.
28573 1301 1003 69 Types of queries are: POCs, o
7303 1057 581 168 Telecom Argentina Stet-France
14420 715 57 88 Types of queries are: POCs, o
6503 594 450 70 AVANTEL, S.A.
22047 579 322 17 Types of queries are: POCs, o
27947 579 56 77 Telconet S.A
10481 548 430 20 Prima S.A.
3816 538 232 99 COLOMBIA TELECOMUNICACIONES S
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 811 147 42 LINKdotNET AS number
8452 684 445 11 TEDATA
15475 512 74 8 Nile Online
36992 301 415 14 Etisalat MISR
3741 267 938 228 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
33776 204 13 14 Starcomms Nigeria Limited
15706 195 32 6 Sudatel Internet Exchange Aut
12258 194 28 63 YEBO-AS
29571 191 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 3566 3817 226 bellsouth.net, inc.
23456 3233 763 1745 >>UNKNOWN<<
17974 2008 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1943 11039 648 Korea Telecom (KIX)
18566 1912 364 237 Covad Communications
1785 1822 680 123 AppliedTheory Corporation
10620 1661 305 161 TVCABLE BOGOTA
7029 1627 1037 210 Windstream Communications Inc
4323 1622 1101 394 Time Warner Telecom
20115 1592 1541 632 Charter Communications
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 2008 1977 PT TELEKOMUNIKASI INDONESIA
1785 1822 1699 AppliedTheory Corporation
18566 1912 1675 Covad Communications
7545 1585 1502 TPG Internet Pty Ltd
10620 1661 1500 TVCABLE BOGOTA
23456 3233 1488 >>UNKNOWN<<
7029 1627 1417 Windstream Communications Inc
7552 1415 1408 Vietel Corporation
4755 1543 1375 Videsh Sanchar Nigam Ltd. Aut
22773 1453 1354 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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
46.18.104.0/21 23456 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
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 /8:20 /9:12 /10:27 /11:81 /12:234
/13:463 /14:807 /15:1448 /16:12081 /17:6214 /18:10313
/19:20272 /20:27987 /21:27453 /22:36523 /23:35274 /24:194380
/25:77 /26:89 /27:122 /28:286 /29:105 /30:554
/31:72 /32:500
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2203 3566 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1572 3233 >>UNKNOWN<<
10620 1556 1661 TVCABLE BOGOTA
7029 1309 1627 Windstream Communications Inc
30036 1291 1328 Mediacom Communications Corp
11492 1111 1157 Cable One
7011 1058 1183 Citizens Utilities
1785 1052 1822 AppliedTheory Corporation
22773 942 1453 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:374 2:49 4:19 5:1 6:3 8:352
12:1954 13:1 14:535 15:13 16:3 17:5
20:10 23:32 24:1677 27:943 31:518 32:149
33:3 34:2 36:4 38:741 40:107 41:2513
42:45 44:3 46:986 47:3 49:239 50:413
52:13 54:2 55:7 56:2 57:44 58:873
59:493 60:376 61:1177 62:1095 63:1964 64:4078
65:2304 66:3972 67:1985 68:1276 69:3277 70:828
71:377 72:1887 73:1 74:2478 75:340 76:347
77:871 78:669 79:484 80:1131 81:847 82:515
83:496 84:702 85:1095 86:419 87:864 88:351
89:1545 90:232 91:4084 92:526 93:1155 94:1343
95:794 96:428 97:271 98:942 99:37 101:205
103:286 106:71 107:44 108:82 109:1022 110:672
111:747 112:320 113:443 114:568 115:719 116:944
117:698 118:896 119:1196 120:336 121:703 122:1609
123:1017 124:1348 125:1403 128:253 129:184 130:166
131:572 132:119 133:21 134:216 135:52 136:212
137:137 138:294 139:129 140:486 141:289 142:392
143:416 144:493 145:61 146:464 147:226 148:689
149:251 150:153 151:190 152:446 153:179 154:6
155:393 156:202 157:355 158:143 159:458 160:323
161:207 162:335 163:173 164:513 165:401 166:538
167:434 168:746 169:149 170:849 171:84 172:1
173:1666 174:637 175:402 176:176 177:247 178:1009
180:1057 181:27 182:613 183:234 184:353 185:1
186:1418 187:666 188:940 189:866 190:5136 192:5953
193:5020 194:3551 195:3091 196:1237 197:145 198:3599
199:4120 200:5516 201:1637 202:8530 203:8529 204:4255
205:2349 206:2739 207:2845 208:4154 209:3547 210:2708
211:1467 212:2122 213:1775 214:771 215:76 216:4904
217:1604 218:554 219:348 220:1227 221:516 222:354
223:266
End of report
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