Routing Table Report 00:00 GMT Mon 05 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: 387162
Prefixes after maximum aggregation: 168649
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 182784
Total ASes present in the Internet Routing Table: 39504
Prefixes per ASN: 9.80
Origin-only ASes present in the Internet Routing Table: 32450
Origin ASes announcing only one prefix: 15535
Transit ASes present in the Internet Routing Table: 5355
Transit-only ASes present in the Internet Routing Table: 146
Average AS path length visible in the Internet Routing Table: 5.1
Max AS path length visible: 30
Max AS path prepend of ASN (19202) 25
Prefixes from unregistered ASNs in the Routing Table: 5924
Unregistered ASNs in the Routing Table: 964
Number of 32-bit ASNs allocated by the RIRs: 2044
Number of 32-bit ASNs visible in the Routing Table: 1699
Prefixes from 32-bit ASNs in the Routing Table: 4003
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 81
Number of addresses announced to Internet: 2327126821
Equivalent to 138 /8s, 181 /16s and 35 /24s
Percentage of available address space announced: 62.8
Percentage of allocated address space announced: 62.8
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: 162142
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93565
Total APNIC prefixes after maximum aggregation: 30059
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 90095
Unique aggregates announced from the APNIC address blocks: 36979
APNIC Region origin ASes present in the Internet Routing Table: 4583
APNIC Prefixes per ASN: 19.66
APNIC Region origin ASes announcing only one prefix: 1267
APNIC Region transit ASes present in the Internet Routing Table: 732
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 116
Number of APNIC addresses announced to Internet: 614941440
Equivalent to 36 /8s, 167 /16s and 67 /24s
Percentage of available APNIC address space announced: 78.0
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: 148793
Total ARIN prefixes after maximum aggregation: 76873
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120766
Unique aggregates announced from the ARIN address blocks: 45859
ARIN Region origin ASes present in the Internet Routing Table: 14805
ARIN Prefixes per ASN: 8.16
ARIN Region origin ASes announcing only one prefix: 5659
ARIN Region transit ASes present in the Internet Routing Table: 1565
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 28
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 665313288
Equivalent to 39 /8s, 167 /16s and 224 /24s
Percentage of available ARIN address space announced: 52.9
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: 95014
Total RIPE prefixes after maximum aggregation: 51577
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 86442
Unique aggregates announced from the RIPE address blocks: 53386
RIPE Region origin ASes present in the Internet Routing Table: 16172
RIPE Prefixes per ASN: 5.35
RIPE Region origin ASes announcing only one prefix: 8006
RIPE Region transit ASes present in the Internet Routing Table: 2575
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1190
Number of RIPE addresses announced to Internet: 477220300
Equivalent to 28 /8s, 113 /16s and 205 /24s
Percentage of available RIPE address space announced: 76.9
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: 37224
Total LACNIC prefixes after maximum aggregation: 8017
LACNIC Deaggregation factor: 4.64
Prefixes being announced from the LACNIC address blocks: 36566
Unique aggregates announced from the LACNIC address blocks: 18745
LACNIC Region origin ASes present in the Internet Routing Table: 1555
LACNIC Prefixes per ASN: 23.52
LACNIC Region origin ASes announcing only one prefix: 448
LACNIC Region transit ASes present in the Internet Routing Table: 285
Average LACNIC Region AS path length visible: 5.6
Max LACNIC Region AS path length visible: 26
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 377
Number of LACNIC addresses announced to Internet: 94310408
Equivalent to 5 /8s, 159 /16s and 16 /24s
Percentage of available LACNIC address space announced: 62.5
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: 8323
Total AfriNIC prefixes after maximum aggregation: 2051
AfriNIC Deaggregation factor: 4.06
Prefixes being announced from the AfriNIC address blocks: 6385
Unique aggregates announced from the AfriNIC address blocks: 2010
AfriNIC Region origin ASes present in the Internet Routing Table: 502
AfriNIC Prefixes per ASN: 12.72
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 114
Average AfriNIC Region AS path length visible: 5.2
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: 30010880
Equivalent to 1 /8s, 201 /16s and 238 /24s
Percentage of available AfriNIC address space announced: 44.7
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
4766 1947 11097 664 Korea Telecom (KIX)
17974 1654 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1627 303 87 TPG Internet Pty Ltd
4755 1508 385 156 Videsh Sanchar Nigam Ltd. Aut
7552 1386 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1095 80 494 Sify Limited
24560 983 382 162 Bharti Airtel Ltd.
17488 960 173 221 Hathway IP Over Cable Interne
18101 958 121 155 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 3485 3814 219 bellsouth.net, inc.
7029 2777 1016 199 Windstream Communications Inc
18566 2094 383 177 Covad Communications
1785 1853 680 121 AppliedTheory Corporation
4323 1613 1073 386 Time Warner Telecom
20115 1602 1546 625 Charter Communications
22773 1507 2909 104 Cox Communications, Inc.
30036 1435 257 675 Mediacom Communications Corp
19262 1387 4683 401 Verizon Global Networks
7018 1317 6901 864 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 1541 480 15 Corbina telecom
286 1091 808 201 KPNQwest Backbone AS
6830 647 1928 413 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 517 8168 390 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 1535 1059 72 Types of queries are: POCs, o
8151 1483 2985 343 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 561 434 69 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 546 237 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 952 958 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 18 14 Ci Telecom Autonomous system
12258 196 28 61 YEBO-AS
24835 191 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 3485 3814 219 bellsouth.net, inc.
7029 2777 1016 199 Windstream Communications Inc
18566 2094 383 177 Covad Communications
4766 1947 11097 664 Korea Telecom (KIX)
1785 1853 680 121 AppliedTheory Corporation
10620 1703 315 180 TVCABLE BOGOTA
17974 1654 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1627 303 87 TPG Internet Pty Ltd
4323 1613 1073 386 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 2777 2578 Windstream Communications Inc
18566 2094 1917 Covad Communications
1785 1853 1732 AppliedTheory Corporation
17974 1654 1616 PT TELEKOMUNIKASI INDONESIA
7545 1627 1540 TPG Internet Pty Ltd
8402 1541 1526 Corbina telecom
10620 1703 1523 TVCABLE BOGOTA
28573 1535 1463 Types of queries are: POCs, o
22773 1507 1403 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
41.222.79.0/24 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 /14:813 /15:1468 /16:12184 /17:6358 /18:10487
/19:20592 /20:28898 /21:28364 /22:38566 /23:36214 /24:200655
/25:69 /26:84 /27:112 /28:282 /29:111 /30:527
/31:52 /32:487
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2420 2777 Windstream Communications Inc
6389 2127 3485 bellsouth.net, inc.
18566 2043 2094 Covad Communications
10620 1598 1703 TVCABLE BOGOTA
8402 1516 1541 Corbina telecom
30036 1395 1435 Mediacom Communications Corp
11492 1119 1156 Cable One
1785 1058 1853 AppliedTheory Corporation
7011 1052 1169 Citizens Utilities
22773 967 1507 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:454 2:488 4:19 5:1 6:3 8:361
12:1949 13:1 14:557 15:11 16:3 17:7
20:9 23:73 24:1699 27:1062 31:718 32:122
33:2 34:2 36:4 38:774 39:1 40:114
41:2873 42:67 43:1 44:3 46:1116 47:2
49:295 50:455 52:13 55:6 56:2 57:59
58:942 59:485 60:359 61:1185 62:933 63:1988
64:4075 65:2311 66:4393 67:2028 68:1358 69:3256
70:953 71:361 72:1802 73:1 74:2697 75:444
76:331 77:910 78:886 79:440 80:1146 81:858
82:542 83:532 84:483 85:1168 86:417 87:921
88:356 89:1610 90:246 91:4319 92:532 93:1427
94:1332 95:1115 96:398 97:285 98:772 99:37
101:244 103:533 106:7 107:102 108:93 109:1134
110:691 111:820 112:369 113:507 114:628 115:712
116:926 117:721 118:879 119:1312 120:349 121:687
122:1575 123:1023 124:1381 125:1349 128:277 129:188
130:185 131:580 132:157 133:21 134:222 135:54
136:213 137:147 138:287 139:134 140:491 141:253
142:381 143:396 144:499 145:66 146:474 147:232
148:695 149:270 150:166 151:192 152:449 153:171
154:7 155:389 156:210 157:361 158:156 159:524
160:332 161:214 162:364 163:177 164:518 165:379
166:541 167:454 168:823 169:147 170:824 171:90
172:4 173:1783 174:582 175:432 176:325 177:409
178:1154 180:1186 181:38 182:674 183:250 184:402
185:1 186:1465 187:771 188:950 189:1162 190:5293
192:5988 193:5139 194:3603 195:3184 196:1286 197:170
198:3635 199:4223 200:5497 201:1700 202:8558 203:8519
204:4327 205:2400 206:2696 207:2842 208:4022 209:3584
210:2757 211:1481 212:2019 213:1813 214:804 215:91
216:4969 217:1492 218:580 219:341 220:1259 221:525
222:326 223:232
End of report
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