Routing Table Report 00:00 GMT Thu 10 Nov, 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: 385102
Prefixes after maximum aggregation: 167998
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 187691
Total ASes present in the Internet Routing Table: 39302
Prefixes per ASN: 9.80
Origin-only ASes present in the Internet Routing Table: 32348
Origin ASes announcing only one prefix: 15513
Transit ASes present in the Internet Routing Table: 5344
Transit-only ASes present in the Internet Routing Table: 139
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 28
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5361
Unregistered ASNs in the Routing Table: 883
Number of 32-bit ASNs allocated by the RIRs: 1934
Number of 32-bit ASNs visible in the Routing Table: 1610
Prefixes from 32-bit ASNs in the Routing Table: 3689
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 87
Number of addresses announced to Internet: 2491245348
Equivalent to 148 /8s, 125 /16s and 99 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.6
Total number of prefixes smaller than registry allocations: 161476
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93052
Total APNIC prefixes after maximum aggregation: 30034
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 89529
Unique aggregates announced from the APNIC address blocks: 38340
APNIC Region origin ASes present in the Internet Routing Table: 4587
APNIC Prefixes per ASN: 19.52
APNIC Region origin ASes announcing only one prefix: 1275
APNIC Region transit ASes present in the Internet Routing Table: 720
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 103
Number of APNIC addresses announced to Internet: 629988608
Equivalent to 37 /8s, 140 /16s and 221 /24s
Percentage of available APNIC address space announced: 79.9
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: 148912
Total ARIN prefixes after maximum aggregation: 76602
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120614
Unique aggregates announced from the ARIN address blocks: 48473
ARIN Region origin ASes present in the Internet Routing Table: 14764
ARIN Prefixes per ASN: 8.17
ARIN Region origin ASes announcing only one prefix: 5646
ARIN Region transit ASes present in the Internet Routing Table: 1558
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 26
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804766216
Equivalent to 47 /8s, 247 /16s and 194 /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: 93898
Total RIPE prefixes after maximum aggregation: 51224
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 85512
Unique aggregates announced from the RIPE address blocks: 54576
RIPE Region origin ASes present in the Internet Routing Table: 16110
RIPE Prefixes per ASN: 5.31
RIPE Region origin ASes announcing only one prefix: 7984
RIPE Region transit ASes present in the Internet Routing Table: 2573
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1122
Number of RIPE addresses announced to Internet: 492034252
Equivalent to 29 /8s, 83 /16s and 216 /24s
Percentage of available RIPE address space announced: 79.3
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: 36777
Total LACNIC prefixes after maximum aggregation: 8012
LACNIC Deaggregation factor: 4.59
Prefixes being announced from the LACNIC address blocks: 36123
Unique aggregates announced from the LACNIC address blocks: 18602
LACNIC Region origin ASes present in the Internet Routing Table: 1549
LACNIC Prefixes per ASN: 23.32
LACNIC Region origin ASes announcing only one prefix: 450
LACNIC Region transit ASes present in the Internet Routing Table: 288
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 23
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 369
Number of LACNIC addresses announced to Internet: 92939528
Equivalent to 5 /8s, 138 /16s and 37 /24s
Percentage of available LACNIC address space announced: 61.6
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: 8564
Total AfriNIC prefixes after maximum aggregation: 2049
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6631
Unique aggregates announced from the AfriNIC address blocks: 1987
AfriNIC Region origin ASes present in the Internet Routing Table: 498
AfriNIC Prefixes per ASN: 13.32
AfriNIC Region origin ASes announcing only one prefix: 158
AfriNIC Region transit ASes present in the Internet Routing Table: 114
Average AfriNIC Region AS path length visible: 4.4
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: 27684096
Equivalent to 1 /8s, 166 /16s and 109 /24s
Percentage of available AfriNIC address space announced: 41.3
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 1950 11121 665 Korea Telecom (KIX)
17974 1660 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1615 303 87 TPG Internet Pty Ltd
4755 1542 377 170 Videsh Sanchar Nigam Ltd. Aut
7552 1394 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1095 81 505 Sify Limited
4808 1046 2033 291 CNCGROUP IP network: China169
24560 964 343 218 Bharti Airtel Ltd.
17488 960 187 207 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 3547 3815 221 bellsouth.net, inc.
7029 2777 1042 211 Windstream Communications Inc
18566 2094 382 176 Covad Communications
1785 1848 680 123 AppliedTheory Corporation
4323 1622 1077 387 Time Warner Telecom
20115 1594 1546 623 Charter Communications
22773 1491 2909 103 Cox Communications, Inc.
30036 1410 255 670 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1319 7046 867 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 1495 412 13 Corbina telecom
286 1088 811 206 KPNQwest Backbone AS
6830 649 1927 412 UPC Distribution Services
34984 596 110 184 Tellcom Iletisim Hizmetleri
20940 559 187 437 Akamai Technologies European
12479 548 629 52 Uni2 Autonomous System
9116 541 326 31 Goldenlines main autonomous s
3292 533 2058 407 TDC Tele Danmark
3320 503 8168 387 Deutsche Telekom AG
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 1699 314 156 TVCABLE BOGOTA
28573 1481 1043 79 Types of queries are: POCs, o
8151 1472 2918 341 Uninet S.A. de C.V.
7303 1236 751 171 Telecom Argentina Stet-France
27947 602 72 84 Telconet S.A
22047 580 322 17 Types of queries are: POCs, o
6503 576 434 69 AVANTEL, S.A.
7738 551 1050 31 Telecomunicacoes da Bahia S.A
10481 547 429 25 Prima S.A.
3816 542 233 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 794 146 36 LINKdotNET AS number
8452 658 446 12 TEDATA
15475 443 74 8 Nile Online
36992 286 415 21 Etisalat MISR
3741 282 939 231 The Internet Solution
15706 240 32 6 Sudatel Internet Exchange Aut
33776 239 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 219 18 14 Ci Telecom Autonomous system
12258 197 28 58 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 221 bellsouth.net, inc.
7029 2777 1042 211 Windstream Communications Inc
18566 2094 382 176 Covad Communications
4766 1950 11121 665 Korea Telecom (KIX)
1785 1848 680 123 AppliedTheory Corporation
10620 1699 314 156 TVCABLE BOGOTA
17974 1660 511 36 PT TELEKOMUNIKASI INDONESIA
4323 1622 1077 387 Time Warner Telecom
7545 1615 303 87 TPG Internet Pty Ltd
20115 1594 1546 623 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 2566 Windstream Communications Inc
18566 2094 1918 Covad Communications
1785 1848 1725 AppliedTheory Corporation
17974 1660 1624 PT TELEKOMUNIKASI INDONESIA
10620 1699 1543 TVCABLE BOGOTA
7545 1615 1528 TPG Internet Pty Ltd
8402 1495 1482 Corbina telecom
28573 1481 1402 Types of queries are: POCs, o
22773 1491 1388 Cox Communications, Inc.
7552 1394 1387 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
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 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
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 /14:815 /15:1456 /16:12169 /17:6327 /18:10436
/19:20520 /20:28791 /21:28148 /22:37804 /23:35783 /24:200308
/25:66 /26:83 /27:111 /28:289 /29:116 /30:502
/31:53 /32:484
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2408 2777 Windstream Communications Inc
6389 2187 3547 bellsouth.net, inc.
18566 2044 2094 Covad Communications
10620 1594 1699 TVCABLE BOGOTA
8402 1473 1495 Corbina telecom
30036 1370 1410 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1057 1848 AppliedTheory Corporation
7011 1051 1169 Citizens Utilities
22773 953 1491 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:412 2:486 4:19 5:1 6:3 8:357
12:1964 13:1 14:545 15:11 16:3 17:7
20:9 23:63 24:1686 27:1029 31:679 32:120
33:2 34:2 36:4 38:759 39:1 40:110
41:2685 42:60 44:3 46:1032 47:3 49:298
50:451 52:13 55:8 56:2 57:57 58:919
59:496 60:362 61:1139 62:1105 63:1984 64:4082
65:2310 66:4346 67:2049 68:1354 69:3251 70:955
71:384 72:1839 73:1 74:2685 75:439 76:327
77:882 78:883 79:480 80:1137 81:845 82:529
83:530 84:631 85:1152 86:408 87:936 88:360
89:1607 90:237 91:4272 92:537 93:1549 94:1301
95:1099 96:435 97:286 98:945 99:37 101:229
103:454 106:8 107:88 108:76 109:1183 110:673
111:807 112:362 113:484 114:625 115:717 116:900
117:723 118:898 119:1271 120:347 121:713 122:1579
123:1014 124:1353 125:1355 128:247 129:186 130:164
131:626 132:151 133:21 134:222 135:54 136:212
137:142 138:287 139:131 140:494 141:317 142:389
143:417 144:489 145:64 146:470 147:231 148:693
149:272 150:164 151:194 152:447 153:175 154:7
155:389 156:208 157:362 158:155 159:487 160:332
161:215 162:371 163:174 164:509 165:387 166:541
167:443 168:808 169:146 170:880 171:87 172:4
173:1754 174:706 175:432 176:295 177:366 178:1098
180:1150 181:37 182:659 183:236 184:389 185:1
186:1400 187:791 188:964 189:1155 190:5219 192:5956
193:5064 194:3574 195:3127 196:1277 197:171 198:3639
199:4218 200:5535 201:1695 202:8550 203:8543 204:4316
205:2375 206:2689 207:2826 208:4037 209:3617 210:2740
211:1468 212:2117 213:1803 214:787 215:96 216:4927
217:1611 218:569 219:343 220:1261 221:517 222:325
223:270
End of report
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