Routing Table Report 00:00 GMT Mon 19 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: 390907
Prefixes after maximum aggregation: 169228
Deaggregation factor: 2.31
Unique aggregates announced to Internet: 189295
Total ASes present in the Internet Routing Table: 39617
Prefixes per ASN: 9.87
Origin-only ASes present in the Internet Routing Table: 32578
Origin ASes announcing only one prefix: 15525
Transit ASes present in the Internet Routing Table: 5278
Transit-only ASes present in the Internet Routing Table: 142
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 30
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 6186
Unregistered ASNs in the Routing Table: 1012
Number of 32-bit ASNs allocated by the RIRs: 2106
Number of 32-bit ASNs visible in the Routing Table: 1761
Prefixes from 32-bit ASNs in the Routing Table: 4201
Special use prefixes present in the Routing Table: 88
Prefixes being announced from unallocated address space: 89
Number of addresses announced to Internet: 2503165478
Equivalent to 149 /8s, 51 /16s and 70 /24s
Percentage of available address space announced: 67.5
Percentage of allocated address space announced: 67.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.8
Total number of prefixes smaller than registry allocations: 163797
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94064
Total APNIC prefixes after maximum aggregation: 30194
APNIC Deaggregation factor: 3.12
Prefixes being announced from the APNIC address blocks: 90476
Unique aggregates announced from the APNIC address blocks: 38579
APNIC Region origin ASes present in the Internet Routing Table: 4594
APNIC Prefixes per ASN: 19.69
APNIC Region origin ASes announcing only one prefix: 1264
APNIC Region transit ASes present in the Internet Routing Table: 729
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 122
Number of APNIC addresses announced to Internet: 632071168
Equivalent to 37 /8s, 172 /16s and 164 /24s
Percentage of available APNIC address space announced: 80.2
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: 149388
Total ARIN prefixes after maximum aggregation: 77073
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 121207
Unique aggregates announced from the ARIN address blocks: 48762
ARIN Region origin ASes present in the Internet Routing Table: 14804
ARIN Prefixes per ASN: 8.19
ARIN Region origin ASes announcing only one prefix: 5642
ARIN Region transit ASes present in the Internet Routing Table: 1515
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 14
Number of ARIN addresses announced to Internet: 804584968
Equivalent to 47 /8s, 244 /16s and 254 /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: 97133
Total RIPE prefixes after maximum aggregation: 51800
RIPE Deaggregation factor: 1.88
Prefixes being announced from the RIPE address blocks: 88399
Unique aggregates announced from the RIPE address blocks: 55127
RIPE Region origin ASes present in the Internet Routing Table: 16216
RIPE Prefixes per ASN: 5.45
RIPE Region origin ASes announcing only one prefix: 8013
RIPE Region transit ASes present in the Internet Routing Table: 2556
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1228
Number of RIPE addresses announced to Internet: 494737100
Equivalent to 29 /8s, 125 /16s and 22 /24s
Percentage of available RIPE address space announced: 79.7
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: 37345
Total LACNIC prefixes after maximum aggregation: 8015
LACNIC Deaggregation factor: 4.66
Prefixes being announced from the LACNIC address blocks: 36793
Unique aggregates announced from the LACNIC address blocks: 18886
LACNIC Region origin ASes present in the Internet Routing Table: 1556
LACNIC Prefixes per ASN: 23.65
LACNIC Region origin ASes announcing only one prefix: 450
LACNIC Region transit ASes present in the Internet Routing Table: 286
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 393
Number of LACNIC addresses announced to Internet: 94823176
Equivalent to 5 /8s, 166 /16s and 227 /24s
Percentage of available LACNIC address space announced: 62.8
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: 8556
Total AfriNIC prefixes after maximum aggregation: 2075
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 6592
Unique aggregates announced from the AfriNIC address blocks: 2070
AfriNIC Region origin ASes present in the Internet Routing Table: 502
AfriNIC Prefixes per ASN: 13.13
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 114
Average AfriNIC Region AS path length visible: 4.1
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: 30852096
Equivalent to 1 /8s, 214 /16s and 196 /24s
Percentage of available AfriNIC address space announced: 46.0
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 1920 11097 656 Korea Telecom (KIX)
17974 1717 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1629 303 86 TPG Internet Pty Ltd
4755 1518 385 158 Videsh Sanchar Nigam Ltd. Aut
7552 1443 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1101 81 494 Sify Limited
24560 996 385 167 Bharti Airtel Ltd.
18101 966 129 156 Reliance Infocom Ltd Internet
17488 945 163 225 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 3476 3814 221 bellsouth.net, inc.
7029 2834 1026 203 Windstream Communications Inc
18566 2095 383 177 Covad Communications
1785 1859 681 122 AppliedTheory Corporation
4323 1617 1089 385 Time Warner Telecom
20115 1602 1549 625 Charter Communications
22773 1513 2909 105 Cox Communications, Inc.
30036 1458 260 674 Mediacom Communications Corp
19262 1387 4683 401 Verizon Global Networks
7018 1327 7031 869 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 1572 480 15 Corbina telecom
2118 1097 99 14 EUnet/RELCOM Autonomous Syste
286 1096 807 198 KPNQwest Backbone AS
15557 1035 2161 64 LDCOM NETWORKS
6830 645 1927 410 UPC Distribution Services
34984 625 132 195 Tellcom Iletisim Hizmetleri
20940 555 179 443 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
12479 540 630 48 Uni2 Autonomous System
3292 532 2106 408 TDC Tele Danmark
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 1717 318 155 TVCABLE BOGOTA
28573 1568 1064 75 Types of queries are: POCs, o
8151 1499 2970 347 Uninet S.A. de C.V.
7303 1248 752 176 Telecom Argentina Stet-France
27947 632 73 94 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
6503 566 434 70 AVANTEL, S.A.
7738 551 1050 31 Telecomunicacoes da Bahia S.A
3816 549 237 89 COLOMBIA TELECOMUNICACIONES S
10481 537 429 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 1038 958 13 TEDATA
24863 788 146 34 LINKdotNET AS number
3741 281 939 230 The Internet Solution
6713 243 647 17 Itissalat Al-MAGHRIB
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
29571 217 17 13 Ci Telecom Autonomous system
12258 196 28 61 YEBO-AS
24835 188 80 8 RAYA Telecom - Egypt
36923 180 20 4 Swift Networks Limited
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 3476 3814 221 bellsouth.net, inc.
7029 2834 1026 203 Windstream Communications Inc
18566 2095 383 177 Covad Communications
4766 1920 11097 656 Korea Telecom (KIX)
1785 1859 681 122 AppliedTheory Corporation
10620 1717 318 155 TVCABLE BOGOTA
17974 1717 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1629 303 86 TPG Internet Pty Ltd
4323 1617 1089 385 Time Warner Telecom
20115 1602 1549 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 2834 2631 Windstream Communications Inc
18566 2095 1918 Covad Communications
1785 1859 1737 AppliedTheory Corporation
17974 1717 1679 PT TELEKOMUNIKASI INDONESIA
10620 1717 1562 TVCABLE BOGOTA
8402 1572 1557 Corbina telecom
7545 1629 1543 TPG Internet Pty Ltd
28573 1568 1493 Types of queries are: POCs, o
7552 1443 1436 Vietel Corporation
22773 1513 1408 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 10912 InterNAP Network Ser
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 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
66.129.0.0/19 3901 Higher Technology Services, I
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 /8:19 /9:12 /10:27 /11:81 /12:237
/13:465 /14:819 /15:1475 /16:12204 /17:6381 /18:10521
/19:20643 /20:29115 /21:28554 /22:38620 /23:36398 /24:203580
/25:69 /26:85 /27:112 /28:291 /29:113 /30:548
/31:51 /32:487
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2461 2834 Windstream Communications Inc
6389 2120 3476 bellsouth.net, inc.
18566 2044 2095 Covad Communications
10620 1612 1717 TVCABLE BOGOTA
8402 1550 1572 Corbina telecom
30036 1418 1458 Mediacom Communications Corp
11492 1112 1149 Cable One
1785 1059 1859 AppliedTheory Corporation
7011 1051 1168 Citizens Utilities
15557 991 1035 LDCOM NETWORKS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:454 2:418 4:19 5:1 6:3 8:363
12:1946 13:1 14:563 15:11 16:3 17:7
20:9 23:75 24:1703 27:1125 31:736 32:122
33:2 34:2 36:4 38:777 39:1 40:114
41:2996 42:79 43:1 44:3 46:1143 47:3
49:281 50:466 52:13 55:5 56:2 57:54
58:924 59:485 60:344 61:1190 62:948 63:1980
64:4130 65:2306 66:4398 67:2037 68:1367 69:3239
70:966 71:377 72:1809 73:1 74:2697 75:445
76:332 77:938 78:861 79:449 80:1175 81:855
82:548 83:535 84:582 85:1162 86:743 87:910
88:357 89:1607 90:247 91:4361 92:541 93:1515
94:1326 95:1045 96:401 97:286 98:775 99:38
100:1 101:253 103:576 106:11 107:113 108:102
109:1413 110:697 111:823 112:379 113:508 114:612
115:718 116:914 117:732 118:906 119:1264 120:343
121:691 122:1562 123:1027 124:1415 125:1342 128:543
129:191 130:186 131:586 132:162 133:21 134:224
135:54 136:213 137:151 138:286 139:135 140:493
141:255 142:384 143:386 144:503 145:67 146:478
147:233 148:686 149:273 150:164 151:192 152:446
153:172 154:7 155:397 156:210 157:368 158:155
159:501 160:341 161:221 162:362 163:186 164:520
165:409 166:542 167:457 168:818 169:147 170:828
171:93 172:4 173:1815 174:599 175:431 176:321
177:440 178:1147 180:1230 181:39 182:676 183:260
184:402 185:1 186:1416 187:784 188:958 189:1182
190:5292 192:6006 193:5205 194:4324 195:3434 196:1298
197:174 198:3642 199:4240 200:5522 201:1717 202:8596
203:8533 204:4351 205:2417 206:2693 207:2847 208:4036
209:3593 210:2777 211:1484 212:2017 213:1803 214:800
215:93 216:4969 217:1511 218:585 219:352 220:1261
221:527 222:325 223:266
End of report
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