Routing Table Report 00:00 GMT Wed 07 Dec, 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: 387683
Prefixes after maximum aggregation: 168783
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 188721
Total ASes present in the Internet Routing Table: 39497
Prefixes per ASN: 9.82
Origin-only ASes present in the Internet Routing Table: 32473
Origin ASes announcing only one prefix: 15484
Transit ASes present in the Internet Routing Table: 5318
Transit-only ASes present in the Internet Routing Table: 151
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 29
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5950
Unregistered ASNs in the Routing Table: 978
Number of 32-bit ASNs allocated by the RIRs: 2045
Number of 32-bit ASNs visible in the Routing Table: 1706
Prefixes from 32-bit ASNs in the Routing Table: 4020
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 88
Number of addresses announced to Internet: 2498280485
Equivalent to 148 /8s, 232 /16s and 188 /24s
Percentage of available address space announced: 67.4
Percentage of allocated address space announced: 67.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.7
Total number of prefixes smaller than registry allocations: 162442
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93576
Total APNIC prefixes after maximum aggregation: 30121
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 90097
Unique aggregates announced from the APNIC address blocks: 38506
APNIC Region origin ASes present in the Internet Routing Table: 4581
APNIC Prefixes per ASN: 19.67
APNIC Region origin ASes announcing only one prefix: 1263
APNIC Region transit ASes present in the Internet Routing Table: 738
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 116
Number of APNIC addresses announced to Internet: 631177984
Equivalent to 37 /8s, 159 /16s and 3 /24s
Percentage of available APNIC address space announced: 80.0
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: 149043
Total ARIN prefixes after maximum aggregation: 76908
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120926
Unique aggregates announced from the ARIN address blocks: 48674
ARIN Region origin ASes present in the Internet Routing Table: 14782
ARIN Prefixes per ASN: 8.18
ARIN Region origin ASes announcing only one prefix: 5623
ARIN Region transit ASes present in the Internet Routing Table: 1523
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 802658312
Equivalent to 47 /8s, 215 /16s and 152 /24s
Percentage of available ARIN address space announced: 63.8
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: 95078
Total RIPE prefixes after maximum aggregation: 51604
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 86457
Unique aggregates announced from the RIPE address blocks: 54799
RIPE Region origin ASes present in the Internet Routing Table: 16181
RIPE Prefixes per ASN: 5.34
RIPE Region origin ASes announcing only one prefix: 8000
RIPE Region transit ASes present in the Internet Routing Table: 2576
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1195
Number of RIPE addresses announced to Internet: 493032140
Equivalent to 29 /8s, 99 /16s and 18 /24s
Percentage of available RIPE address space announced: 79.4
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: 37334
Total LACNIC prefixes after maximum aggregation: 8027
LACNIC Deaggregation factor: 4.65
Prefixes being announced from the LACNIC address blocks: 36669
Unique aggregates announced from the LACNIC address blocks: 18831
LACNIC Region origin ASes present in the Internet Routing Table: 1551
LACNIC Prefixes per ASN: 23.64
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 288
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 379
Number of LACNIC addresses announced to Internet: 94496008
Equivalent to 5 /8s, 161 /16s and 229 /24s
Percentage of available LACNIC address space announced: 62.6
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: 8399
Total AfriNIC prefixes after maximum aggregation: 2050
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 6460
Unique aggregates announced from the AfriNIC address blocks: 2013
AfriNIC Region origin ASes present in the Internet Routing Table: 502
AfriNIC Prefixes per ASN: 12.87
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 108
Average AfriNIC Region AS path length visible: 4.0
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: 30130176
Equivalent to 1 /8s, 203 /16s and 192 /24s
Percentage of available AfriNIC address space announced: 44.9
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 1951 11102 667 Korea Telecom (KIX)
17974 1663 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1629 303 87 TPG Internet Pty Ltd
4755 1511 385 158 Videsh Sanchar Nigam Ltd. Aut
7552 1386 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1098 80 500 Sify Limited
4808 1053 2026 298 CNCGROUP IP network: China169
24560 983 382 162 Bharti Airtel Ltd.
18101 959 121 155 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 3484 3814 219 bellsouth.net, inc.
7029 2951 1042 212 Windstream Communications Inc
18566 2095 383 177 Covad Communications
1785 1857 680 121 AppliedTheory Corporation
4323 1612 1089 385 Time Warner Telecom
20115 1604 1549 626 Charter Communications
22773 1504 2909 104 Cox Communications, Inc.
30036 1437 257 676 Mediacom Communications Corp
19262 1388 4683 401 Verizon Global Networks
7018 1321 7063 867 AT&T WorldNet Services
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
8402 1582 480 15 Corbina telecom
286 1093 808 199 KPNQwest Backbone AS
6830 646 1928 413 UPC Distribution Services
34984 615 115 194 Tellcom Iletisim Hizmetleri
20940 552 175 442 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3292 535 2106 408 TDC Tele Danmark
3320 516 8168 389 Deutsche Telekom AG
12479 494 601 13 Uni2 Autonomous System
8866 462 133 26 Bulgarian Telecommunication C
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 1703 315 180 TVCABLE BOGOTA
28573 1520 1057 82 Types of queries are: POCs, o
8151 1504 2967 347 Uninet S.A. de C.V.
7303 1239 751 174 Telecom Argentina Stet-France
27947 626 73 91 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
6503 561 434 70 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 550 237 89 COLOMBIA TELECOMUNICACIONES S
10481 546 429 25 Prima 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
8452 967 958 13 TEDATA
24863 783 146 33 LINKdotNET AS number
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 217 17 13 Ci Telecom Autonomous system
12258 196 28 61 YEBO-AS
24835 194 80 8 RAYA Telecom - Egypt
36923 157 20 4 Swift Networks Limited
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 3484 3814 219 bellsouth.net, inc.
7029 2951 1042 212 Windstream Communications Inc
18566 2095 383 177 Covad Communications
4766 1951 11102 667 Korea Telecom (KIX)
1785 1857 680 121 AppliedTheory Corporation
10620 1703 315 180 TVCABLE BOGOTA
17974 1663 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1629 303 87 TPG Internet Pty Ltd
4323 1612 1089 385 Time Warner Telecom
20115 1604 1549 626 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
7029 2951 2739 Windstream Communications Inc
18566 2095 1918 Covad Communications
1785 1857 1736 AppliedTheory Corporation
17974 1663 1625 PT TELEKOMUNIKASI INDONESIA
8402 1582 1567 Corbina telecom
7545 1629 1542 TPG Internet Pty Ltd
10620 1703 1523 TVCABLE BOGOTA
28573 1520 1438 Types of queries are: POCs, o
22773 1504 1400 Cox Communications, Inc.
7552 1386 1379 Vietel Corporation
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
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
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 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
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
64.21.192.0/20 11610 Internet Nebraska
64.21.212.0/22 11610 Internet Nebraska
64.21.216.0/21 11610 Internet Nebraska
66.171.32.0/20 705 UUNET Technologies, Inc.
66.175.222.0/23 30058 FDCservers.net LLC
66.180.239.0/24 35888 VIGNETTE CORPORATION
66.207.32.0/20 23011 >>UNKNOWN<<
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 /12:236
/13:464 /14:814 /15:1469 /16:12198 /17:6365 /18:10498
/19:20590 /20:28914 /21:28387 /22:38568 /23:36279 /24:201021
/25:69 /26:84 /27:112 /28:293 /29:112 /30:531
/31:52 /32:487
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2563 2951 Windstream Communications Inc
6389 2126 3484 bellsouth.net, inc.
18566 2044 2095 Covad Communications
10620 1598 1703 TVCABLE BOGOTA
8402 1557 1582 Corbina telecom
30036 1397 1437 Mediacom Communications Corp
11492 1119 1156 Cable One
1785 1059 1857 AppliedTheory Corporation
7011 1051 1168 Citizens Utilities
22773 964 1504 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:446 2:481 4:19 5:1 6:3 8:362
12:1949 13:1 14:558 15:11 16:3 17:7
20:9 23:71 24:1698 27:1078 31:718 32:122
33:2 34:2 36:4 38:776 39:1 40:114
41:2918 42:68 43:1 44:3 46:1120 47:3
49:295 50:459 52:13 55:6 56:2 57:59
58:945 59:485 60:360 61:1186 62:933 63:1984
64:4087 65:2313 66:4384 67:2028 68:1361 69:3266
70:953 71:361 72:1807 73:1 74:2694 75:443
76:332 77:938 78:886 79:438 80:1146 81:851
82:542 83:531 84:467 85:1170 86:418 87:919
88:356 89:1606 90:246 91:4335 92:537 93:1428
94:1326 95:1129 96:395 97:285 98:772 99:38
101:244 103:532 106:7 107:104 108:98 109:1133
110:690 111:820 112:367 113:506 114:628 115:714
116:922 117:722 118:883 119:1274 120:350 121:688
122:1559 123:1026 124:1377 125:1348 128:305 129:189
130:185 131:580 132:157 133:21 134:225 135:54
136:213 137:147 138:287 139:134 140:491 141:253
142:382 143:417 144:506 145:66 146:474 147:232
148:694 149:270 150:168 151:192 152:446 153:171
154:8 155:396 156:210 157:358 158:156 159:526
160:334 161:221 162:365 163:178 164:523 165:407
166:541 167:457 168:812 169:147 170:823 171:90
172:4 173:1786 174:594 175:432 176:334 177:412
178:1146 180:1196 181:38 182:678 183:252 184:409
185:1 186:1495 187:786 188:948 189:1164 190:5295
192:6001 193:5142 194:3603 195:3182 196:1296 197:170
198:3636 199:4252 200:5527 201:1684 202:8546 203:8522
204:4334 205:2412 206:2698 207:2845 208:4029 209:3584
210:2769 211:1481 212:2019 213:1806 214:816 215:91
216:4969 217:1496 218:579 219:341 220:1259 221:527
222:326 223:241
End of report
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