Routing Table Report 00:00 GMT Tue 06 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: 387155
Prefixes after maximum aggregation: 168785
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 182901
Total ASes present in the Internet Routing Table: 39516
Prefixes per ASN: 9.80
Origin-only ASes present in the Internet Routing Table: 32457
Origin ASes announcing only one prefix: 15528
Transit ASes present in the Internet Routing Table: 5357
Transit-only ASes present in the Internet Routing Table: 143
Average AS path length visible in the Internet Routing Table: 5.0
Max AS path length visible: 30
Max AS path prepend of ASN (19202) 25
Prefixes from unregistered ASNs in the Routing Table: 5928
Unregistered ASNs in the Routing Table: 965
Number of 32-bit ASNs allocated by the RIRs: 2045
Number of 32-bit ASNs visible in the Routing Table: 1702
Prefixes from 32-bit ASNs in the Routing Table: 4005
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 85
Number of addresses announced to Internet: 2327730981
Equivalent to 138 /8s, 190 /16s and 91 /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: 162014
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93535
Total APNIC prefixes after maximum aggregation: 30064
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 90058
Unique aggregates announced from the APNIC address blocks: 37013
APNIC Region origin ASes present in the Internet Routing Table: 4587
APNIC Prefixes per ASN: 19.63
APNIC Region origin ASes announcing only one prefix: 1271
APNIC Region transit ASes present in the Internet Routing Table: 734
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 117
Number of APNIC addresses announced to Internet: 614797568
Equivalent to 36 /8s, 165 /16s and 17 /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: 148913
Total ARIN prefixes after maximum aggregation: 77002
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 120818
Unique aggregates announced from the ARIN address blocks: 45795
ARIN Region origin ASes present in the Internet Routing Table: 14812
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: 4.4
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: 665490184
Equivalent to 39 /8s, 170 /16s and 147 /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: 95007
Total RIPE prefixes after maximum aggregation: 51591
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 86420
Unique aggregates announced from the RIPE address blocks: 53400
RIPE Region origin ASes present in the Internet Routing Table: 16174
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: 2580
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1193
Number of RIPE addresses announced to Internet: 477205964
Equivalent to 28 /8s, 113 /16s and 149 /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: 37087
Total LACNIC prefixes after maximum aggregation: 8004
LACNIC Deaggregation factor: 4.63
Prefixes being announced from the LACNIC address blocks: 36400
Unique aggregates announced from the LACNIC address blocks: 18802
LACNIC Region origin ASes present in the Internet Routing Table: 1556
LACNIC Prefixes per ASN: 23.39
LACNIC Region origin ASes announcing only one prefix: 448
LACNIC Region transit ASes present in the Internet Routing Table: 287
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: 376
Number of LACNIC addresses announced to Internet: 94387464
Equivalent to 5 /8s, 160 /16s and 61 /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: 8368
Total AfriNIC prefixes after maximum aggregation: 2052
AfriNIC Deaggregation factor: 4.08
Prefixes being announced from the AfriNIC address blocks: 6412
Unique aggregates announced from the AfriNIC address blocks: 2019
AfriNIC Region origin ASes present in the Internet Routing Table: 500
AfriNIC Prefixes per ASN: 12.82
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 112
Average AfriNIC Region AS path length visible: 5.0
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: 29775616
Equivalent to 1 /8s, 198 /16s and 87 /24s
Percentage of available AfriNIC address space announced: 44.4
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 1655 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1631 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 1101 81 494 Sify Limited
24560 983 382 162 Bharti Airtel Ltd.
17488 962 175 221 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 2778 1016 199 Windstream Communications Inc
18566 2094 383 177 Covad Communications
1785 1853 680 121 AppliedTheory Corporation
4323 1612 1073 385 Time Warner Telecom
20115 1604 1549 626 Charter Communications
22773 1504 2909 104 Cox Communications, Inc.
19262 1388 4683 401 Verizon Global Networks
30036 1354 251 705 Mediacom Communications Corp
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 1568 480 15 Corbina telecom
286 1092 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 535 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 1325 2985 337 Uninet S.A. de C.V.
7303 1239 751 174 Telecom Argentina Stet-France
27947 620 72 91 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 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 967 958 13 TEDATA
24863 784 146 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 194 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 2778 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 1655 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1631 303 87 TPG Internet Pty Ltd
4323 1612 1073 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 2778 2579 Windstream Communications Inc
18566 2094 1917 Covad Communications
1785 1853 1732 AppliedTheory Corporation
17974 1655 1617 PT TELEKOMUNIKASI INDONESIA
8402 1568 1553 Corbina telecom
7545 1631 1544 TPG Internet Pty Ltd
10620 1703 1523 TVCABLE BOGOTA
28573 1535 1463 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
41.222.79.0/24 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
/13:464 /14:812 /15:1469 /16:12192 /17:6369 /18:10490
/19:20600 /20:28903 /21:28372 /22:38568 /23:36242 /24:200733
/25:66 /26:83 /27:109 /28:128 /29:112 /30:529
/31:51 /32:487
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2421 2778 Windstream Communications Inc
6389 2127 3485 bellsouth.net, inc.
18566 2043 2094 Covad Communications
10620 1598 1703 TVCABLE BOGOTA
8402 1543 1568 Corbina telecom
30036 1314 1354 Mediacom Communications Corp
11492 1119 1156 Cable One
1785 1058 1853 AppliedTheory Corporation
7011 1052 1169 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)
----------------------------------------------
1:455 2:490 4:19 5:1 6:3 8:361
12:1949 13:1 14:558 15:11 16:3 17:7
20:9 23:73 24:1699 27:1057 31:718 32:122
33:2 34:2 36:4 38:774 39:1 40:114
41:2902 42:67 43:1 44:3 46:1116 47:3
49:295 50:402 52:13 55:5 56:2 57:59
58:943 59:486 60:359 61:1184 62:933 63:1983
64:4088 65:2311 66:4394 67:2030 68:1358 69:3261
70:953 71:361 72:1803 73:1 74:2689 75:444
76:332 77:910 78:885 79:438 80:1148 81:850
82:542 83:532 84:483 85:1167 86:418 87:917
88:356 89:1610 90:246 91:4337 92:533 93:1429
94:1331 95:1114 96:397 97:285 98:770 99:37
101:244 103:536 106:7 107:104 108:92 109:1128
110:692 111:820 112:368 113:507 114:628 115:714
116:927 117:721 118:881 119:1286 120:350 121:687
122:1566 123:1025 124:1380 125:1346 128:296 129:188
130:185 131:580 132:157 133:21 134:223 135:54
136:213 137:146 138:287 139:134 140:491 141:253
142:382 143:425 144:499 145:66 146:475 147:232
148:696 149:270 150:166 151:192 152:449 153:171
154:8 155:396 156:210 157:357 158:156 159:524
160:333 161:218 162:364 163:177 164:519 165:407
166:541 167:457 168:820 169:147 170:823 171:90
172:4 173:1784 174:581 175:432 176:329 177:406
178:1147 180:1187 181:38 182:676 183:243 184:408
185:1 186:1479 187:779 188:947 189:1165 190:5244
192:5998 193:5140 194:3600 195:3186 196:1296 197:170
198:3639 199:4249 200:5523 201:1696 202:8543 203:8509
204:4331 205:2409 206:2697 207:2843 208:4030 209:3584
210:2759 211:1482 212:2022 213:1811 214:814 215:92
216:4969 217:1473 218:579 219:341 220:1259 221:527
222:326 223:230
End of report
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