Routing Table Report 00:00 GMT Fri 02 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: 387073
Prefixes after maximum aggregation: 168597
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 188334
Total ASes present in the Internet Routing Table: 39464
Prefixes per ASN: 9.81
Origin-only ASes present in the Internet Routing Table: 32489
Origin ASes announcing only one prefix: 15501
Transit ASes present in the Internet Routing Table: 5286
Transit-only ASes present in the Internet Routing Table: 145
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 30
Max AS path prepend of ASN (56677) 25
Prefixes from unregistered ASNs in the Routing Table: 5882
Unregistered ASNs in the Routing Table: 960
Number of 32-bit ASNs allocated by the RIRs: 2019
Number of 32-bit ASNs visible in the Routing Table: 1689
Prefixes from 32-bit ASNs in the Routing Table: 3992
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 83
Number of addresses announced to Internet: 2497140517
Equivalent to 148 /8s, 215 /16s and 87 /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: 162146
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93384
Total APNIC prefixes after maximum aggregation: 30079
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 89914
Unique aggregates announced from the APNIC address blocks: 38301
APNIC Region origin ASes present in the Internet Routing Table: 4590
APNIC Prefixes per ASN: 19.59
APNIC Region origin ASes announcing only one prefix: 1269
APNIC Region transit ASes present in the Internet Routing Table: 734
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 115
Number of APNIC addresses announced to Internet: 631194880
Equivalent to 37 /8s, 159 /16s and 69 /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: 148911
Total ARIN prefixes after maximum aggregation: 76819
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120880
Unique aggregates announced from the ARIN address blocks: 48679
ARIN Region origin ASes present in the Internet Routing Table: 14779
ARIN Prefixes per ASN: 8.18
ARIN Region origin ASes announcing only one prefix: 5634
ARIN Region transit ASes present in the Internet Routing Table: 1545
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803196424
Equivalent to 47 /8s, 223 /16s and 206 /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: 94903
Total RIPE prefixes after maximum aggregation: 51560
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 86280
Unique aggregates announced from the RIPE address blocks: 54730
RIPE Region origin ASes present in the Internet Routing Table: 16161
RIPE Prefixes per ASN: 5.34
RIPE Region origin ASes announcing only one prefix: 7997
RIPE Region transit ASes present in the Internet Routing Table: 2518
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1182
Number of RIPE addresses announced to Internet: 492668876
Equivalent to 29 /8s, 93 /16s and 135 /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: 37302
Total LACNIC prefixes after maximum aggregation: 8020
LACNIC Deaggregation factor: 4.65
Prefixes being announced from the LACNIC address blocks: 36633
Unique aggregates announced from the LACNIC address blocks: 18780
LACNIC Region origin ASes present in the Internet Routing Table: 1555
LACNIC Prefixes per ASN: 23.56
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 287
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 26
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 376
Number of LACNIC addresses announced to Internet: 94490120
Equivalent to 5 /8s, 161 /16s and 206 /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: 8363
Total AfriNIC prefixes after maximum aggregation: 2051
AfriNIC Deaggregation factor: 4.08
Prefixes being announced from the AfriNIC address blocks: 6409
Unique aggregates announced from the AfriNIC address blocks: 2017
AfriNIC Region origin ASes present in the Internet Routing Table: 504
AfriNIC Prefixes per ASN: 12.72
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 113
Average AfriNIC Region AS path length visible: 4.2
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: 29958144
Equivalent to 1 /8s, 201 /16s and 32 /24s
Percentage of available AfriNIC address space announced: 44.6
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 1947 11097 664 Korea Telecom (KIX)
17974 1646 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1623 303 87 TPG Internet Pty Ltd
4755 1510 381 157 Videsh Sanchar Nigam Ltd. Aut
7552 1386 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1093 80 494 Sify Limited
24560 984 389 151 Bharti Airtel Ltd.
17488 960 173 221 Hathway IP Over Cable Interne
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 3483 3814 218 bellsouth.net, inc.
7029 2908 1020 200 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1851 680 120 AppliedTheory Corporation
4323 1607 1073 383 Time Warner Telecom
20115 1602 1546 625 Charter Communications
22773 1508 2909 104 Cox Communications, Inc.
30036 1435 257 675 Mediacom Communications Corp
19262 1388 4683 401 Verizon Global Networks
7018 1319 7062 865 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 1500 480 15 Corbina telecom
286 1095 807 199 KPNQwest Backbone AS
6830 646 1927 412 UPC Distribution Services
34984 616 116 195 Tellcom Iletisim Hizmetleri
20940 547 174 438 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3292 534 2106 408 TDC Tele Danmark
3320 518 8169 391 Deutsche Telekom AG
12479 492 600 11 Uni2 Autonomous System
8866 461 133 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 1700 315 178 TVCABLE BOGOTA
28573 1521 1059 72 Types of queries are: POCs, o
8151 1495 2964 341 Uninet S.A. de C.V.
7303 1239 751 174 Telecom Argentina Stet-France
27947 624 72 90 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
6503 564 434 70 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 548 237 90 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 926 958 13 TEDATA
24863 785 146 35 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 218 17 13 Ci Telecom Autonomous system
12258 196 28 61 YEBO-AS
24835 190 80 8 RAYA Telecom - Egypt
16637 157 664 86 Johnnic e-Ventures
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 3483 3814 218 bellsouth.net, inc.
7029 2908 1020 200 Windstream Communications Inc
18566 2093 383 177 Covad Communications
4766 1947 11097 664 Korea Telecom (KIX)
1785 1851 680 120 AppliedTheory Corporation
10620 1700 315 178 TVCABLE BOGOTA
17974 1646 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1623 303 87 TPG Internet Pty Ltd
4323 1607 1073 383 Time Warner Telecom
20115 1602 1546 625 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 2908 2708 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1851 1731 AppliedTheory Corporation
17974 1646 1608 PT TELEKOMUNIKASI INDONESIA
7545 1623 1536 TPG Internet Pty Ltd
10620 1700 1522 TVCABLE BOGOTA
8402 1500 1485 Corbina telecom
28573 1521 1449 Types of queries are: POCs, o
22773 1508 1404 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
14764 UNALLOCATED 12.108.237.0/24 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
41.222.79.0/24 37345 MEDALLION Communications
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
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
/13:463 /14:814 /15:1468 /16:12195 /17:6371 /18:10444
/19:20598 /20:28916 /21:28351 /22:38495 /23:36183 /24:200660
/25:69 /26:84 /27:112 /28:290 /29:113 /30:529
/31:52 /32:490
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2538 2908 Windstream Communications Inc
6389 2126 3483 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1595 1700 TVCABLE BOGOTA
8402 1476 1500 Corbina telecom
30036 1395 1435 Mediacom Communications Corp
11492 1119 1156 Cable One
1785 1058 1851 AppliedTheory Corporation
7011 1045 1161 Citizens Utilities
22773 968 1508 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:437 2:486 4:19 5:1 6:3 8:360
12:1951 13:1 14:554 15:11 16:3 17:7
20:9 23:71 24:1697 27:1060 31:718 32:121
33:2 34:2 36:4 38:769 39:1 40:114
41:2876 42:65 43:1 44:3 46:1113 47:3
49:296 50:452 52:13 55:6 56:2 57:59
58:931 59:484 60:359 61:1181 62:932 63:1982
64:4087 65:2310 66:4391 67:2028 68:1358 69:3268
70:953 71:361 72:1847 73:1 74:2704 75:443
76:332 77:908 78:885 79:441 80:1144 81:856
82:537 83:532 84:479 85:1168 86:418 87:916
88:356 89:1610 90:246 91:4313 92:532 93:1418
94:1330 95:1084 96:397 97:285 98:782 99:37
101:244 103:530 106:7 107:102 108:91 109:1105
110:691 111:812 112:368 113:506 114:632 115:710
116:926 117:720 118:881 119:1297 120:350 121:689
122:1569 123:1025 124:1378 125:1350 128:278 129:186
130:183 131:631 132:155 133:21 134:226 135:54
136:212 137:146 138:285 139:134 140:491 141:251
142:380 143:403 144:499 145:66 146:476 147:232
148:697 149:270 150:164 151:192 152:450 153:171
154:7 155:396 156:208 157:361 158:157 159:500
160:333 161:214 162:364 163:176 164:515 165:406
166:541 167:455 168:814 169:146 170:824 171:87
172:4 173:1778 174:595 175:434 176:325 177:412
178:1139 180:1183 181:39 182:670 183:251 184:396
185:1 186:1477 187:783 188:951 189:1164 190:5272
192:5987 193:5129 194:3605 195:3182 196:1296 197:170
198:3625 199:4243 200:5525 201:1705 202:8563 203:8521
204:4331 205:2412 206:2696 207:2843 208:4022 209:3580
210:2750 211:1480 212:2031 213:1817 214:813 215:96
216:4962 217:1491 218:578 219:341 220:1256 221:525
222:327 223:228
End of report
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