Routing Table Report 00:00 GMT Fri 09 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: 388307
Prefixes after maximum aggregation: 168914
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 188861
Total ASes present in the Internet Routing Table: 39528
Prefixes per ASN: 9.82
Origin-only ASes present in the Internet Routing Table: 32537
Origin ASes announcing only one prefix: 15506
Transit ASes present in the Internet Routing Table: 5279
Transit-only ASes present in the Internet Routing Table: 140
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 28
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 6029
Unregistered ASNs in the Routing Table: 992
Number of 32-bit ASNs allocated by the RIRs: 2057
Number of 32-bit ASNs visible in the Routing Table: 1712
Prefixes from 32-bit ASNs in the Routing Table: 4072
Special use prefixes present in the Routing Table: 88
Prefixes being announced from unallocated address space: 83
Number of addresses announced to Internet: 2499637286
Equivalent to 148 /8s, 253 /16s and 112 /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: 162336
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93742
Total APNIC prefixes after maximum aggregation: 30141
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 90255
Unique aggregates announced from the APNIC address blocks: 38599
APNIC Region origin ASes present in the Internet Routing Table: 4577
APNIC Prefixes per ASN: 19.72
APNIC Region origin ASes announcing only one prefix: 1258
APNIC Region transit ASes present in the Internet Routing Table: 731
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: 118
Number of APNIC addresses announced to Internet: 631181312
Equivalent to 37 /8s, 159 /16s and 16 /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: 149070
Total ARIN prefixes after maximum aggregation: 76989
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120917
Unique aggregates announced from the ARIN address blocks: 48640
ARIN Region origin ASes present in the Internet Routing Table: 14808
ARIN Prefixes per ASN: 8.17
ARIN Region origin ASes announcing only one prefix: 5642
ARIN Region transit ASes present in the Internet Routing Table: 1549
Average ARIN Region AS path length visible: 3.7
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: 803426568
Equivalent to 47 /8s, 227 /16s and 81 /24s
Percentage of available ARIN address space announced: 63.9
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: 95364
Total RIPE prefixes after maximum aggregation: 51634
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 86864
Unique aggregates announced from the RIPE address blocks: 54871
RIPE Region origin ASes present in the Internet Routing Table: 16187
RIPE Prefixes per ASN: 5.37
RIPE Region origin ASes announcing only one prefix: 8002
RIPE Region transit ASes present in the Internet Routing Table: 2521
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1200
Number of RIPE addresses announced to Internet: 493782476
Equivalent to 29 /8s, 110 /16s and 133 /24s
Percentage of available RIPE address space announced: 79.5
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: 37384
Total LACNIC prefixes after maximum aggregation: 7998
LACNIC Deaggregation factor: 4.67
Prefixes being announced from the LACNIC address blocks: 36767
Unique aggregates announced from the LACNIC address blocks: 18840
LACNIC Region origin ASes present in the Internet Routing Table: 1556
LACNIC Prefixes per ASN: 23.63
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 286
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 378
Number of LACNIC addresses announced to Internet: 94669320
Equivalent to 5 /8s, 164 /16s and 138 /24s
Percentage of available LACNIC address space announced: 62.7
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: 2078
AfriNIC Deaggregation factor: 4.06
Prefixes being announced from the AfriNIC address blocks: 6470
Unique aggregates announced from the AfriNIC address blocks: 2060
AfriNIC Region origin ASes present in the Internet Routing Table: 504
AfriNIC Prefixes per ASN: 12.84
AfriNIC Region origin ASes announcing only one prefix: 157
AfriNIC Region transit ASes present in the Internet Routing Table: 112
Average AfriNIC Region AS path length visible: 4.0
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: 30383104
Equivalent to 1 /8s, 207 /16s and 156 /24s
Percentage of available AfriNIC address space announced: 45.3
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 1691 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1628 303 86 TPG Internet Pty Ltd
4755 1508 385 156 Videsh Sanchar Nigam Ltd. Aut
7552 1392 1064 7 Vietel Corporation
9829 1168 989 28 BSNL National Internet Backbo
9583 1099 81 496 Sify Limited
24560 982 381 162 Bharti Airtel Ltd.
18101 960 121 154 Reliance Infocom Ltd Internet
17488 944 166 232 Hathway IP Over Cable Interne
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 3479 3814 218 bellsouth.net, inc.
7029 2846 1041 207 Windstream Communications Inc
18566 2093 382 176 Covad Communications
1785 1856 680 122 AppliedTheory Corporation
4323 1614 1089 386 Time Warner Telecom
20115 1603 1549 629 Charter Communications
22773 1506 2909 104 Cox Communications, Inc.
30036 1438 257 675 Mediacom Communications Corp
19262 1388 4683 401 Verizon Global Networks
7018 1311 7046 860 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 1542 480 15 Corbina telecom
286 1099 807 201 KPNQwest Backbone AS
6830 646 1927 412 UPC Distribution Services
34984 625 132 201 Tellcom Iletisim Hizmetleri
2118 543 99 14 EUnet/RELCOM Autonomous Syste
20940 543 175 434 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3292 534 2106 407 TDC Tele Danmark
3320 522 8161 389 Deutsche Telekom AG
12479 493 601 12 Uni2 Autonomous System
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 1719 318 155 TVCABLE BOGOTA
28573 1539 1059 72 Types of queries are: POCs, o
8151 1502 2966 345 Uninet S.A. de C.V.
7303 1239 751 174 Telecom Argentina Stet-France
27947 631 73 92 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
6503 563 434 70 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 551 237 89 COLOMBIA TELECOMUNICACIONES S
10481 543 429 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 963 958 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 193 80 8 RAYA Telecom - Egypt
16637 158 664 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 3479 3814 218 bellsouth.net, inc.
7029 2846 1041 207 Windstream Communications Inc
18566 2093 382 176 Covad Communications
4766 1947 11097 664 Korea Telecom (KIX)
1785 1856 680 122 AppliedTheory Corporation
10620 1719 318 155 TVCABLE BOGOTA
17974 1691 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1628 303 86 TPG Internet Pty Ltd
4323 1614 1089 386 Time Warner Telecom
20115 1603 1549 629 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 2846 2639 Windstream Communications Inc
18566 2093 1917 Covad Communications
1785 1856 1734 AppliedTheory Corporation
17974 1691 1653 PT TELEKOMUNIKASI INDONESIA
10620 1719 1564 TVCABLE BOGOTA
7545 1628 1542 TPG Internet Pty Ltd
8402 1542 1527 Corbina telecom
28573 1539 1467 Types of queries are: POCs, o
22773 1506 1402 Cox Communications, Inc.
7552 1392 1385 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
37.0.24.0/21 50794 AS Levira
41.222.79.0/24 36938 >>UNKNOWN<<
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
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
/13:465 /14:817 /15:1470 /16:12187 /17:6359 /18:10467
/19:20612 /20:28960 /21:28395 /22:38453 /23:36358 /24:201643
/25:69 /26:85 /27:111 /28:294 /29:111 /30:535
/31:52 /32:488
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2475 2846 Windstream Communications Inc
6389 2122 3479 bellsouth.net, inc.
18566 2043 2093 Covad Communications
10620 1614 1719 TVCABLE BOGOTA
8402 1518 1542 Corbina telecom
30036 1398 1438 Mediacom Communications Corp
11492 1116 1153 Cable One
1785 1060 1856 AppliedTheory Corporation
7011 1051 1168 Citizens Utilities
22773 966 1506 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:443 2:481 4:19 5:1 6:3 8:362
12:1951 13:1 14:558 15:11 16:3 17:7
20:9 23:71 24:1701 27:1113 31:719 32:122
33:2 34:2 36:4 38:775 39:1 40:114
41:2907 42:68 43:1 44:3 46:1118 47:3
49:293 50:459 52:13 55:7 56:2 57:55
58:950 59:487 60:338 61:1196 62:928 63:1985
64:4086 65:2307 66:4382 67:2029 68:1361 69:3257
70:954 71:362 72:1807 73:1 74:2698 75:445
76:331 77:939 78:884 79:441 80:1147 81:852
82:543 83:535 84:480 85:1170 86:418 87:916
88:355 89:1612 90:247 91:4350 92:536 93:1410
94:1333 95:1119 96:398 97:286 98:786 99:38
101:245 103:539 106:8 107:106 108:98 109:1134
110:691 111:822 112:376 113:505 114:629 115:711
116:908 117:728 118:890 119:1265 120:349 121:702
122:1558 123:1024 124:1401 125:1340 128:279 129:179
130:185 131:580 132:157 133:21 134:223 135:55
136:213 137:147 138:287 139:134 140:491 141:253
142:383 143:410 144:505 145:66 146:475 147:233
148:694 149:272 150:166 151:192 152:446 153:171
154:8 155:396 156:210 157:360 158:156 159:527
160:334 161:221 162:363 163:183 164:523 165:407
166:541 167:459 168:819 169:147 170:823 171:90
172:4 173:1797 174:595 175:435 176:330 177:441
178:1156 180:1196 181:38 182:680 183:252 184:395
185:1 186:1476 187:783 188:949 189:1173 190:5283
192:6000 193:5135 194:3841 195:3434 196:1289 197:173
198:3636 199:4223 200:5541 201:1706 202:8566 203:8546
204:4334 205:2412 206:2697 207:2848 208:4027 209:3587
210:2773 211:1480 212:2021 213:1809 214:818 215:92
216:4968 217:1496 218:581 219:345 220:1257 221:528
222:327 223:255
End of report
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