Routing Table Report 00:00 GMT Mon 12 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: 387991
Prefixes after maximum aggregation: 168886
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 188786
Total ASes present in the Internet Routing Table: 39522
Prefixes per ASN: 9.82
Origin-only ASes present in the Internet Routing Table: 32512
Origin ASes announcing only one prefix: 15519
Transit ASes present in the Internet Routing Table: 5291
Transit-only ASes present in the Internet Routing Table: 139
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 28
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 6043
Unregistered ASNs in the Routing Table: 1003
Number of 32-bit ASNs allocated by the RIRs: 2073
Number of 32-bit ASNs visible in the Routing Table: 1719
Prefixes from 32-bit ASNs in the Routing Table: 4077
Special use prefixes present in the Routing Table: 88
Prefixes being announced from unallocated address space: 77
Number of addresses announced to Internet: 2499991046
Equivalent to 149 /8s, 2 /16s and 214 /24s
Percentage of available address space announced: 67.4
Percentage of allocated address space announced: 67.4
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: 162146
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93658
Total APNIC prefixes after maximum aggregation: 30150
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 90193
Unique aggregates announced from the APNIC address blocks: 38521
APNIC Region origin ASes present in the Internet Routing Table: 4582
APNIC Prefixes per ASN: 19.68
APNIC Region origin ASes announcing only one prefix: 1265
APNIC Region transit ASes present in the Internet Routing Table: 725
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 117
Number of APNIC addresses announced to Internet: 631193344
Equivalent to 37 /8s, 159 /16s and 63 /24s
Percentage of available APNIC address space announced: 80.0
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: 148998
Total ARIN prefixes after maximum aggregation: 76932
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120899
Unique aggregates announced from the ARIN address blocks: 48636
ARIN Region origin ASes present in the Internet Routing Table: 14801
ARIN Prefixes per ASN: 8.17
ARIN Region origin ASes announcing only one prefix: 5652
ARIN Region transit ASes present in the Internet Routing Table: 1551
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 27
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803446792
Equivalent to 47 /8s, 227 /16s and 160 /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: 95318
Total RIPE prefixes after maximum aggregation: 51662
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 86844
Unique aggregates announced from the RIPE address blocks: 54916
RIPE Region origin ASes present in the Internet Routing Table: 16187
RIPE Prefixes per ASN: 5.37
RIPE Region origin ASes announcing only one prefix: 7999
RIPE Region transit ASes present in the Internet Routing Table: 2539
Average RIPE Region AS path length visible: 3.7
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1204
Number of RIPE addresses announced to Internet: 494277324
Equivalent to 29 /8s, 118 /16s and 18 /24s
Percentage of available RIPE address space announced: 79.6
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: 37284
Total LACNIC prefixes after maximum aggregation: 7997
LACNIC Deaggregation factor: 4.66
Prefixes being announced from the LACNIC address blocks: 36741
Unique aggregates announced from the LACNIC address blocks: 18868
LACNIC Region origin ASes present in the Internet Routing Table: 1552
LACNIC Prefixes per ASN: 23.67
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: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 382
Number of LACNIC addresses announced to Internet: 94687496
Equivalent to 5 /8s, 164 /16s and 209 /24s
Percentage of available LACNIC address space announced: 62.7
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: 8407
Total AfriNIC prefixes after maximum aggregation: 2073
AfriNIC Deaggregation factor: 4.06
Prefixes being announced from the AfriNIC address blocks: 6437
Unique aggregates announced from the AfriNIC address blocks: 2046
AfriNIC Region origin ASes present in the Internet Routing Table: 500
AfriNIC Prefixes per ASN: 12.87
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 112
Average AfriNIC Region AS path length visible: 4.0
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: 30395904
Equivalent to 1 /8s, 207 /16s and 206 /24s
Percentage of available AfriNIC address space announced: 45.3
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 1944 11096 660 Korea Telecom (KIX)
17974 1698 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1628 303 86 TPG Internet Pty Ltd
4755 1506 385 155 Videsh Sanchar Nigam Ltd. Aut
7552 1392 1064 7 Vietel Corporation
9829 1170 989 28 BSNL National Internet Backbo
9583 1099 81 496 Sify Limited
24560 982 381 162 Bharti Airtel Ltd.
18101 963 122 157 Reliance Infocom Ltd Internet
17488 947 166 226 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 3479 3814 218 bellsouth.net, inc.
7029 2855 1042 212 Windstream Communications Inc
18566 2092 382 176 Covad Communications
1785 1852 680 121 AppliedTheory Corporation
4323 1617 1089 386 Time Warner Telecom
20115 1602 1548 628 Charter Communications
22773 1505 2909 104 Cox Communications, Inc.
30036 1446 258 676 Mediacom Communications Corp
19262 1388 4683 401 Verizon Global Networks
7018 1309 7046 858 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 1373 480 15 Corbina telecom
286 1099 807 201 KPNQwest Backbone AS
6830 645 1927 412 UPC Distribution Services
34984 624 132 201 Tellcom Iletisim Hizmetleri
20940 550 176 439 Akamai Technologies European
2118 549 99 14 EUnet/RELCOM Autonomous Syste
9116 541 326 32 Goldenlines main autonomous s
3292 533 2106 407 TDC Tele Danmark
3320 526 8161 392 Deutsche Telekom AG
12479 493 601 12 Uni2 Autonomous System
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 1721 318 155 TVCABLE BOGOTA
28573 1540 1059 72 Types of queries are: POCs, o
8151 1452 2966 344 Uninet S.A. de C.V.
7303 1239 751 174 Telecom Argentina Stet-France
27947 630 73 92 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
7738 553 1050 31 Telecomunicacoes da Bahia S.A
6503 552 434 68 AVANTEL, S.A.
3816 547 237 90 COLOMBIA TELECOMUNICACIONES S
10481 543 429 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 963 958 13 TEDATA
24863 783 146 33 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 217 17 13 Ci Telecom Autonomous system
12258 196 28 61 YEBO-AS
24835 193 80 8 RAYA Telecom - Egypt
16637 161 664 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 3479 3814 218 bellsouth.net, inc.
7029 2855 1042 212 Windstream Communications Inc
18566 2092 382 176 Covad Communications
4766 1944 11096 660 Korea Telecom (KIX)
1785 1852 680 121 AppliedTheory Corporation
10620 1721 318 155 TVCABLE BOGOTA
17974 1698 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1628 303 86 TPG Internet Pty Ltd
4323 1617 1089 386 Time Warner Telecom
20115 1602 1548 628 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 2855 2643 Windstream Communications Inc
18566 2092 1916 Covad Communications
1785 1852 1731 AppliedTheory Corporation
17974 1698 1660 PT TELEKOMUNIKASI INDONESIA
10620 1721 1566 TVCABLE BOGOTA
7545 1628 1542 TPG Internet Pty Ltd
28573 1540 1468 Types of queries are: POCs, o
22773 1505 1401 Cox Communications, Inc.
7552 1392 1385 Vietel Corporation
8402 1373 1358 Corbina telecom
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 4323 Time Warner Telecom
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
66.175.222.0/23 30058 FDCservers.net LLC
66.180.239.0/24 35888 VIGNETTE CORPORATION
66.207.32.0/20 23011 >>UNKNOWN<<
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 /12:236
/13:465 /14:817 /15:1473 /16:12186 /17:6359 /18:10499
/19:20616 /20:28964 /21:28414 /22:38557 /23:36254 /24:201333
/25:68 /26:85 /27:109 /28:242 /29:110 /30:526
/31:52 /32:487
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2480 2855 Windstream Communications Inc
6389 2122 3479 bellsouth.net, inc.
18566 2042 2092 Covad Communications
10620 1616 1721 TVCABLE BOGOTA
30036 1406 1446 Mediacom Communications Corp
8402 1349 1373 Corbina telecom
11492 1116 1153 Cable One
1785 1057 1852 AppliedTheory Corporation
7011 1051 1167 Citizens Utilities
22773 966 1505 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:448 2:419 4:19 5:1 6:3 8:362
12:1946 13:1 14:559 15:11 16:3 17:7
20:9 23:71 24:1702 27:1115 31:727 32:122
33:2 34:2 36:4 38:771 39:1 40:114
41:2887 42:70 43:1 44:3 46:1132 47:3
49:279 50:461 52:13 55:5 56:2 57:55
58:946 59:484 60:344 61:1188 62:928 63:1986
64:4096 65:2305 66:4389 67:2037 68:1363 69:3228
70:964 71:362 72:1807 73:1 74:2696 75:444
76:331 77:932 78:866 79:442 80:1148 81:853
82:545 83:534 84:482 85:1173 86:416 87:916
88:355 89:1600 90:247 91:4352 92:542 93:1375
94:1334 95:1080 96:399 97:286 98:787 99:38
101:245 103:547 106:8 107:107 108:98 109:1107
110:697 111:824 112:376 113:502 114:625 115:715
116:905 117:730 118:888 119:1268 120:344 121:702
122:1561 123:1024 124:1404 125:1335 128:275 129:192
130:184 131:573 132:161 133:21 134:221 135:55
136:213 137:148 138:286 139:134 140:482 141:254
142:383 143:396 144:488 145:66 146:477 147:233
148:635 149:272 150:165 151:192 152:446 153:171
154:7 155:395 156:208 157:360 158:156 159:503
160:340 161:221 162:363 163:183 164:523 165:408
166:542 167:458 168:819 169:146 170:824 171:93
172:4 173:1806 174:595 175:429 176:343 177:425
178:1135 180:1213 181:38 182:680 183:253 184:400
185:1 186:1484 187:783 188:944 189:1177 190:5310
192:5996 193:5132 194:3842 195:3430 196:1296 197:173
198:3625 199:4227 200:5519 201:1707 202:8579 203:8537
204:4332 205:2402 206:2698 207:2847 208:4011 209:3578
210:2780 211:1477 212:2024 213:1808 214:820 215:92
216:4968 217:1497 218:581 219:345 220:1257 221:529
222:327 223:262
End of report
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