Routing Table Report 00:00 GMT Tue 13 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: 388776
Prefixes after maximum aggregation: 169042
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 188944
Total ASes present in the Internet Routing Table: 39558
Prefixes per ASN: 9.83
Origin-only ASes present in the Internet Routing Table: 32531
Origin ASes announcing only one prefix: 15536
Transit ASes present in the Internet Routing Table: 5301
Transit-only ASes present in the Internet Routing Table: 140
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: 6078
Unregistered ASNs in the Routing Table: 1009
Number of 32-bit ASNs allocated by the RIRs: 2076
Number of 32-bit ASNs visible in the Routing Table: 1726
Prefixes from 32-bit ASNs in the Routing Table: 4098
Special use prefixes present in the Routing Table: 88
Prefixes being announced from unallocated address space: 79
Number of addresses announced to Internet: 2500916518
Equivalent to 149 /8s, 16 /16s and 245 /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: 91.7
Total number of prefixes smaller than registry allocations: 162640
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93815
Total APNIC prefixes after maximum aggregation: 30163
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 90312
Unique aggregates announced from the APNIC address blocks: 38520
APNIC Region origin ASes present in the Internet Routing Table: 4579
APNIC Prefixes per ASN: 19.72
APNIC Region origin ASes announcing only one prefix: 1260
APNIC Region transit ASes present in the Internet Routing Table: 727
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 119
Number of APNIC addresses announced to Internet: 631337728
Equivalent to 37 /8s, 161 /16s and 115 /24s
Percentage of available APNIC address space announced: 80.1
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: 149105
Total ARIN prefixes after maximum aggregation: 77000
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 121008
Unique aggregates announced from the ARIN address blocks: 48656
ARIN Region origin ASes present in the Internet Routing Table: 14814
ARIN Prefixes per ASN: 8.17
ARIN Region origin ASes announcing only one prefix: 5656
ARIN Region transit ASes present in the Internet Routing Table: 1552
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: 803457032
Equivalent to 47 /8s, 227 /16s and 200 /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: 95667
Total RIPE prefixes after maximum aggregation: 51706
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 87145
Unique aggregates announced from the RIPE address blocks: 54961
RIPE Region origin ASes present in the Internet Routing Table: 16203
RIPE Prefixes per ASN: 5.38
RIPE Region origin ASes announcing only one prefix: 8016
RIPE Region transit ASes present in the Internet Routing Table: 2541
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: 1207
Number of RIPE addresses announced to Internet: 494308300
Equivalent to 29 /8s, 118 /16s and 139 /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: 37381
Total LACNIC prefixes after maximum aggregation: 8027
LACNIC Deaggregation factor: 4.66
Prefixes being announced from the LACNIC address blocks: 36759
Unique aggregates announced from the LACNIC address blocks: 18899
LACNIC Region origin ASes present in the Internet Routing Table: 1553
LACNIC Prefixes per ASN: 23.67
LACNIC Region origin ASes announcing only one prefix: 446
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: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 384
Number of LACNIC addresses announced to Internet: 94685704
Equivalent to 5 /8s, 164 /16s and 202 /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: 8460
Total AfriNIC prefixes after maximum aggregation: 2074
AfriNIC Deaggregation factor: 4.08
Prefixes being announced from the AfriNIC address blocks: 6505
Unique aggregates announced from the AfriNIC address blocks: 2070
AfriNIC Region origin ASes present in the Internet Routing Table: 501
AfriNIC Prefixes per ASN: 12.98
AfriNIC Region origin ASes announcing only one prefix: 158
AfriNIC Region transit ASes present in the Internet Routing Table: 115
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: 30890496
Equivalent to 1 /8s, 215 /16s and 90 /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 1944 11096 660 Korea Telecom (KIX)
17974 1701 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1628 303 86 TPG Internet Pty Ltd
4755 1511 385 156 Videsh Sanchar Nigam Ltd. Aut
7552 1396 1064 7 Vietel Corporation
9829 1167 989 28 BSNL National Internet Backbo
9583 1099 81 496 Sify Limited
24560 980 381 164 Bharti Airtel Ltd.
18101 963 122 157 Reliance Infocom Ltd Internet
17488 939 166 227 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 2854 1042 211 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 1447 258 675 Mediacom Communications Corp
19262 1387 4683 401 Verizon Global Networks
7018 1311 7046 859 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 1596 480 15 Corbina telecom
286 1099 807 201 KPNQwest Backbone AS
6830 645 1927 412 UPC Distribution Services
34984 625 132 195 Tellcom Iletisim Hizmetleri
20940 551 177 440 Akamai Technologies European
2118 549 99 14 EUnet/RELCOM Autonomous Syste
9116 541 326 32 Goldenlines main autonomous s
3292 531 2106 407 TDC Tele Danmark
12479 529 619 37 Uni2 Autonomous System
3320 527 8161 393 Deutsche Telekom AG
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 1529 1059 72 Types of queries are: POCs, o
8151 1494 2981 343 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
6503 561 434 70 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia 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 959 958 13 TEDATA
24863 786 146 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 232 13 8 Starcomms Nigeria Limited
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 2854 1042 211 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 1701 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 2854 2643 Windstream Communications Inc
18566 2092 1916 Covad Communications
1785 1852 1731 AppliedTheory Corporation
17974 1701 1663 PT TELEKOMUNIKASI INDONESIA
8402 1596 1581 Corbina telecom
10620 1721 1566 TVCABLE BOGOTA
7545 1628 1542 TPG Internet Pty Ltd
28573 1529 1457 Types of queries are: POCs, o
22773 1505 1401 Cox Communications, Inc.
7552 1396 1389 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 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
66.171.32.0/20 705 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
/13:465 /14:817 /15:1474 /16:12197 /17:6365 /18:10505
/19:20639 /20:28977 /21:28476 /22:38637 /23:36317 /24:201782
/25:69 /26:85 /27:112 /28:297 /29:114 /30:535
/31:52 /32:485
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2480 2854 Windstream Communications Inc
6389 2122 3479 bellsouth.net, inc.
18566 2042 2092 Covad Communications
10620 1616 1721 TVCABLE BOGOTA
8402 1572 1596 Corbina telecom
30036 1407 1447 Mediacom Communications Corp
11492 1116 1153 Cable One
1785 1057 1852 AppliedTheory Corporation
7011 1052 1169 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)
----------------------------------------------
1:450 2:481 4:19 5:1 6:3 8:362
12:1947 13:1 14:561 15:11 16:3 17:7
20:8 23:72 24:1702 27:1118 31:729 32:122
33:2 34:2 36:4 38:775 39:1 40:114
41:2930 42:74 43:1 44:3 46:1133 47:3
49:279 50:461 52:13 55:5 56:2 57:55
58:950 59:486 60:344 61:1190 62:937 63:1985
64:4079 65:2309 66:4389 67:2038 68:1363 69:3226
70:964 71:362 72:1807 73:1 74:2694 75:444
76:331 77:941 78:885 79:442 80:1155 81:854
82:548 83:531 84:482 85:1172 86:417 87:915
88:356 89:1614 90:248 91:4360 92:543 93:1408
94:1335 95:1129 96:399 97:285 98:785 99:38
101:246 103:543 106:8 107:107 108:99 109:1105
110:697 111:822 112:377 113:507 114:625 115:708
116:907 117:730 118:893 119:1271 120:344 121:702
122:1563 123:1023 124:1404 125:1339 128:328 129:192
130:185 131:573 132:161 133:21 134:224 135:54
136:213 137:150 138:286 139:134 140:481 141:255
142:383 143:393 144:504 145:66 146:477 147:233
148:688 149:272 150:166 151:192 152:446 153:171
154:7 155:397 156:209 157:360 158:155 159:503
160:341 161:221 162:363 163:183 164:522 165:408
166:542 167:458 168:818 169:147 170:824 171:93
172:4 173:1807 174:607 175:431 176:341 177:426
178:1137 180:1223 181:38 182:673 183:256 184:400
185:1 186:1475 187:788 188:944 189:1172 190:5305
192:6003 193:5135 194:3836 195:3434 196:1289 197:173
198:3629 199:4229 200:5511 201:1712 202:8577 203:8537
204:4333 205:2415 206:2699 207:2847 208:4025 209:3596
210:2777 211:1478 212:2018 213:1806 214:820 215:95
216:4968 217:1498 218:581 219:345 220:1257 221:529
222:327 223:261
End of report
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