Routing Table Report 00:00 GMT Tue 18 Oct, 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: 382030
Prefixes after maximum aggregation: 170835
Deaggregation factor: 2.24
Unique aggregates announced to Internet: 185219
Total ASes present in the Internet Routing Table: 39084
Prefixes per ASN: 9.77
Origin-only ASes present in the Internet Routing Table: 32378
Origin ASes announcing only one prefix: 15501
Transit ASes present in the Internet Routing Table: 5188
Transit-only ASes present in the Internet Routing Table: 127
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 26
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 4935
Unregistered ASNs in the Routing Table: 802
Number of 32-bit ASNs allocated by the RIRs: 1866
Number of 32-bit ASNs visible in the Routing Table: 1518
Prefixes from 32-bit ASNs in the Routing Table: 3481
Special use prefixes present in the Routing Table: 90
Prefixes being announced from unallocated address space: 90
Number of addresses announced to Internet: 2484797450
Equivalent to 148 /8s, 27 /16s and 0 /24s
Percentage of available address space announced: 67.0
Percentage of allocated address space announced: 67.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.5
Total number of prefixes smaller than registry allocations: 159326
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93122
Total APNIC prefixes after maximum aggregation: 30001
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 89580
Unique aggregates announced from the APNIC address blocks: 37935
APNIC Region origin ASes present in the Internet Routing Table: 4566
APNIC Prefixes per ASN: 19.62
APNIC Region origin ASes announcing only one prefix: 1270
APNIC Region transit ASes present in the Internet Routing Table: 714
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 92
Number of APNIC addresses announced to Internet: 628762368
Equivalent to 37 /8s, 122 /16s and 39 /24s
Percentage of available APNIC address space announced: 79.7
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: 148433
Total ARIN prefixes after maximum aggregation: 76377
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120171
Unique aggregates announced from the ARIN address blocks: 47813
ARIN Region origin ASes present in the Internet Routing Table: 14746
ARIN Prefixes per ASN: 8.15
ARIN Region origin ASes announcing only one prefix: 5660
ARIN Region transit ASes present in the Internet Routing Table: 1525
Average ARIN Region AS path length visible: 4.0
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: 804709144
Equivalent to 47 /8s, 246 /16s and 227 /24s
Percentage of available ARIN address space announced: 64.0
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: 92694
Total RIPE prefixes after maximum aggregation: 50750
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 84516
Unique aggregates announced from the RIPE address blocks: 54177
RIPE Region origin ASes present in the Internet Routing Table: 16051
RIPE Prefixes per ASN: 5.27
RIPE Region origin ASes announcing only one prefix: 7966
RIPE Region transit ASes present in the Internet Routing Table: 2498
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1069
Number of RIPE addresses announced to Internet: 490997444
Equivalent to 29 /8s, 68 /16s and 6 /24s
Percentage of available RIPE address space announced: 79.1
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: 35580
Total LACNIC prefixes after maximum aggregation: 7873
LACNIC Deaggregation factor: 4.52
Prefixes being announced from the LACNIC address blocks: 34898
Unique aggregates announced from the LACNIC address blocks: 17897
LACNIC Region origin ASes present in the Internet Routing Table: 1539
LACNIC Prefixes per ASN: 22.68
LACNIC Region origin ASes announcing only one prefix: 450
LACNIC Region transit ASes present in the Internet Routing Table: 275
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: 341
Number of LACNIC addresses announced to Internet: 91019272
Equivalent to 5 /8s, 108 /16s and 216 /24s
Percentage of available LACNIC address space announced: 60.3
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: 8551
Total AfriNIC prefixes after maximum aggregation: 2021
AfriNIC Deaggregation factor: 4.23
Prefixes being announced from the AfriNIC address blocks: 6623
Unique aggregates announced from the AfriNIC address blocks: 1994
AfriNIC Region origin ASes present in the Internet Routing Table: 491
AfriNIC Prefixes per ASN: 13.49
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 111
Average AfriNIC Region AS path length visible: 4.5
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: 27845632
Equivalent to 1 /8s, 168 /16s and 228 /24s
Percentage of available AfriNIC address space announced: 41.5
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
17974 1947 519 33 PT TELEKOMUNIKASI INDONESIA
4766 1937 11087 656 Korea Telecom (KIX)
7545 1609 303 86 TPG Internet Pty Ltd
4755 1531 379 169 Videsh Sanchar Nigam Ltd. Aut
7552 1388 1064 7 Vietel Corporation
9829 1165 989 28 BSNL National Internet Backbo
9583 1087 80 503 Sify Limited
4808 1051 2080 298 CNCGROUP IP network: China169
24560 988 336 234 Bharti Airtel Ltd.
18101 953 165 143 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 3547 3815 222 bellsouth.net, inc.
7029 2212 1042 210 Windstream Communications Inc
18566 2097 382 176 Covad Communications
1785 1838 680 122 AppliedTheory Corporation
4323 1630 1099 392 Time Warner Telecom
20115 1591 1541 634 Charter Communications
22773 1462 2907 100 Cox Communications, Inc.
19262 1395 4728 400 Verizon Global Networks
30036 1391 251 673 Mediacom Communications Corp
7018 1344 7097 853 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 1494 352 13 Corbina telecom
286 1079 825 201 KPNQwest Backbone AS
6830 655 1928 416 UPC Distribution Services
34984 582 108 180 Tellcom Iletisim Hizmetleri
20940 549 185 421 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
3292 532 2080 408 TDC Tele Danmark
3320 499 8169 381 Deutsche Telekom AG
12479 481 593 7 Uni2 Autonomous System
8866 459 133 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 1681 310 155 TVCABLE BOGOTA
8151 1470 2844 350 Uninet S.A. de C.V.
28573 1378 1031 68 Types of queries are: POCs, o
7303 1164 683 175 Telecom Argentina Stet-France
27947 593 72 79 Telconet S.A
6503 584 450 71 AVANTEL, S.A.
22047 580 322 17 Types of queries are: POCs, o
7738 553 1050 31 Telecomunicacoes da Bahia S.A
10481 548 430 20 Prima S.A.
3816 541 233 96 COLOMBIA TELECOMUNICACIONES S
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
24863 799 146 34 LINKdotNET AS number
8452 653 446 12 TEDATA
15475 454 74 8 Nile Online
36992 300 415 21 Etisalat MISR
3741 279 938 230 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 240 32 6 Sudatel Internet Exchange Aut
29571 217 17 13 Ci Telecom Autonomous system
33776 207 13 14 Starcomms Nigeria Limited
12258 199 28 59 YEBO-AS
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 3547 3815 222 bellsouth.net, inc.
7029 2212 1042 210 Windstream Communications Inc
18566 2097 382 176 Covad Communications
17974 1947 519 33 PT TELEKOMUNIKASI INDONESIA
4766 1937 11087 656 Korea Telecom (KIX)
1785 1838 680 122 AppliedTheory Corporation
10620 1681 310 155 TVCABLE BOGOTA
4323 1630 1099 392 Time Warner Telecom
7545 1609 303 86 TPG Internet Pty Ltd
20115 1591 1541 634 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 2212 2002 Windstream Communications Inc
18566 2097 1921 Covad Communications
17974 1947 1914 PT TELEKOMUNIKASI INDONESIA
1785 1838 1716 AppliedTheory Corporation
10620 1681 1526 TVCABLE BOGOTA
7545 1609 1523 TPG Internet Pty Ltd
8402 1494 1481 Corbina telecom
7552 1388 1381 Vietel Corporation
4755 1531 1362 Videsh Sanchar Nigam Ltd. Aut
22773 1462 1362 Cox Communications, Inc.
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
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
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
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 /12:235
/13:464 /14:815 /15:1463 /16:12149 /17:6289 /18:10457
/19:20498 /20:28455 /21:27727 /22:37356 /23:35673 /24:198650
/25:66 /26:83 /27:114 /28:282 /29:106 /30:478
/31:53 /32:477
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2185 3547 bellsouth.net, inc.
18566 2047 2097 Covad Communications
7029 1880 2212 Windstream Communications Inc
10620 1576 1681 TVCABLE BOGOTA
8402 1471 1494 Corbina telecom
30036 1353 1391 Mediacom Communications Corp
11492 1117 1155 Cable One
1785 1057 1838 AppliedTheory Corporation
7011 1048 1166 Citizens Utilities
22773 950 1462 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:402 2:484 4:19 5:1 6:3 8:360
12:1957 13:1 14:541 15:11 16:3 17:7
20:9 23:57 24:1691 27:964 31:596 32:150
33:4 34:2 36:4 38:757 39:1 40:109
41:2676 42:53 44:3 46:998 47:3 49:299
50:446 52:13 55:6 56:2 57:47 58:895
59:491 60:367 61:1192 62:1098 63:1947 64:4128
65:2311 66:4302 67:1997 68:1331 69:3345 70:933
71:377 72:1894 73:1 74:2635 75:393 76:354
77:885 78:870 79:477 80:1148 81:829 82:512
83:534 84:642 85:1117 86:405 87:895 88:360
89:1606 90:269 91:4212 92:529 93:1530 94:1303
95:1071 96:441 97:283 98:920 99:37 101:216
103:372 106:70 107:69 108:72 109:1064 110:674
111:789 112:325 113:475 114:609 115:698 116:908
117:713 118:915 119:1254 120:339 121:709 122:1570
123:1026 124:1363 125:1384 128:257 129:184 130:167
131:585 132:145 133:21 134:218 135:54 136:213
137:139 138:290 139:151 140:487 141:295 142:385
143:430 144:497 145:64 146:473 147:227 148:695
149:258 150:167 151:192 152:448 153:178 154:7
155:358 156:206 157:360 158:152 159:476 160:324
161:214 162:339 163:180 164:509 165:389 166:536
167:436 168:730 169:146 170:873 171:86 172:4
173:1713 174:677 175:435 176:283 177:324 178:1059
180:1117 181:36 182:672 183:218 184:375 185:1
186:1249 187:692 188:936 189:868 190:5104 192:5955
193:5045 194:3582 195:3131 196:1266 197:168 198:3641
199:4174 200:5509 201:1658 202:8569 203:8569 204:4293
205:2379 206:2698 207:2830 208:4078 209:3655 210:2802
211:1464 212:2117 213:1777 214:784 215:90 216:5041
217:1625 218:566 219:337 220:1244 221:515 222:347
223:278
End of report
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