Routing Table Report 00:00 GMT Tue 25 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: 384072
Prefixes after maximum aggregation: 167203
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 185833
Total ASes present in the Internet Routing Table: 39183
Prefixes per ASN: 9.80
Origin-only ASes present in the Internet Routing Table: 32336
Origin ASes announcing only one prefix: 15529
Transit ASes present in the Internet Routing Table: 5296
Transit-only ASes present in the Internet Routing Table: 139
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 33
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5122
Unregistered ASNs in the Routing Table: 852
Number of 32-bit ASNs allocated by the RIRs: 1888
Number of 32-bit ASNs visible in the Routing Table: 1551
Prefixes from 32-bit ASNs in the Routing Table: 3562
Special use prefixes present in the Routing Table: 82
Prefixes being announced from unallocated address space: 88
Number of addresses announced to Internet: 2487831818
Equivalent to 148 /8s, 73 /16s and 77 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
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: 161161
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92559
Total APNIC prefixes after maximum aggregation: 29762
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 89142
Unique aggregates announced from the APNIC address blocks: 37951
APNIC Region origin ASes present in the Internet Routing Table: 4568
APNIC Prefixes per ASN: 19.51
APNIC Region origin ASes announcing only one prefix: 1271
APNIC Region transit ASes present in the Internet Routing Table: 716
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 95
Number of APNIC addresses announced to Internet: 628912896
Equivalent to 37 /8s, 124 /16s and 115 /24s
Percentage of available APNIC address space announced: 79.8
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: 148281
Total ARIN prefixes after maximum aggregation: 76531
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 119983
Unique aggregates announced from the ARIN address blocks: 48101
ARIN Region origin ASes present in the Internet Routing Table: 14771
ARIN Prefixes per ASN: 8.12
ARIN Region origin ASes announcing only one prefix: 5674
ARIN Region transit ASes present in the Internet Routing Table: 1557
Average ARIN Region AS path length visible: 3.8
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: 804824088
Equivalent to 47 /8s, 248 /16s and 164 /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: 94944
Total RIPE prefixes after maximum aggregation: 50867
RIPE Deaggregation factor: 1.87
Prefixes being announced from the RIPE address blocks: 86700
Unique aggregates announced from the RIPE address blocks: 54199
RIPE Region origin ASes present in the Internet Routing Table: 16072
RIPE Prefixes per ASN: 5.39
RIPE Region origin ASes announcing only one prefix: 7976
RIPE Region transit ASes present in the Internet Routing Table: 2558
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1089
Number of RIPE addresses announced to Internet: 491458756
Equivalent to 29 /8s, 75 /16s and 16 /24s
Percentage of available RIPE address space announced: 79.2
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: 35935
Total LACNIC prefixes after maximum aggregation: 7936
LACNIC Deaggregation factor: 4.53
Prefixes being announced from the LACNIC address blocks: 35251
Unique aggregates announced from the LACNIC address blocks: 18100
LACNIC Region origin ASes present in the Internet Routing Table: 1542
LACNIC Prefixes per ASN: 22.86
LACNIC Region origin ASes announcing only one prefix: 449
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: 26
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 351
Number of LACNIC addresses announced to Internet: 91702024
Equivalent to 5 /8s, 119 /16s and 67 /24s
Percentage of available LACNIC address space announced: 60.7
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: 8579
Total AfriNIC prefixes after maximum aggregation: 2029
AfriNIC Deaggregation factor: 4.23
Prefixes being announced from the AfriNIC address blocks: 6648
Unique aggregates announced from the AfriNIC address blocks: 1993
AfriNIC Region origin ASes present in the Internet Routing Table: 495
AfriNIC Prefixes per ASN: 13.43
AfriNIC Region origin ASes announcing only one prefix: 159
AfriNIC Region transit ASes present in the Internet Routing Table: 110
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 26
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27852288
Equivalent to 1 /8s, 168 /16s and 254 /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
4766 1939 11104 658 Korea Telecom (KIX)
17974 1880 519 33 PT TELEKOMUNIKASI INDONESIA
7545 1609 303 86 TPG Internet Pty Ltd
4755 1536 633 173 Videsh Sanchar Nigam Ltd. Aut
7552 1390 1064 8 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1091 80 499 Sify Limited
4808 1043 2077 307 CNCGROUP IP network: China169
24560 964 342 218 Bharti Airtel Ltd.
18101 953 166 149 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 3545 3815 221 bellsouth.net, inc.
7029 2323 1042 210 Windstream Communications Inc
18566 2098 383 177 Covad Communications
1785 1841 680 123 AppliedTheory Corporation
4323 1626 1099 392 Time Warner Telecom
20115 1589 1545 621 Charter Communications
22773 1462 2907 100 Cox Communications, Inc.
19262 1395 4728 400 Verizon Global Networks
30036 1395 251 670 Mediacom Communications Corp
7018 1322 7047 865 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
3352 2209 2317 51 Internet Access Network of TD
8402 1497 352 13 Corbina telecom
286 1102 827 211 KPNQwest Backbone AS
6830 654 1927 415 UPC Distribution Services
34984 587 108 179 Tellcom Iletisim Hizmetleri
20940 556 186 427 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
3292 531 2080 407 TDC Tele Danmark
3320 504 8169 384 Deutsche Telekom AG
12479 480 595 8 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 1694 313 155 TVCABLE BOGOTA
8151 1465 2894 346 Uninet S.A. de C.V.
28573 1427 1032 69 Types of queries are: POCs, o
7303 1229 747 177 Telecom Argentina Stet-France
27947 601 72 85 Telconet S.A
6503 580 450 71 AVANTEL, S.A.
22047 580 322 17 Types of queries are: POCs, o
7738 552 1050 31 Telecomunicacoes da Bahia S.A
10481 548 430 20 Prima S.A.
3816 538 233 95 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 804 146 36 LINKdotNET AS number
8452 651 446 12 TEDATA
15475 443 74 8 Nile Online
36992 300 415 21 Etisalat MISR
3741 280 939 229 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
15706 240 32 6 Sudatel Internet Exchange Aut
29571 219 18 14 Ci Telecom Autonomous system
33776 208 13 14 Starcomms Nigeria Limited
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 3545 3815 221 bellsouth.net, inc.
7029 2323 1042 210 Windstream Communications Inc
3352 2209 2317 51 Internet Access Network of TD
18566 2098 383 177 Covad Communications
4766 1939 11104 658 Korea Telecom (KIX)
17974 1880 519 33 PT TELEKOMUNIKASI INDONESIA
1785 1841 680 123 AppliedTheory Corporation
10620 1694 313 155 TVCABLE BOGOTA
4323 1626 1099 392 Time Warner Telecom
7545 1609 303 86 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3352 2209 2158 Internet Access Network of TD
7029 2323 2113 Windstream Communications Inc
18566 2098 1921 Covad Communications
17974 1880 1847 PT TELEKOMUNIKASI INDONESIA
1785 1841 1718 AppliedTheory Corporation
10620 1694 1539 TVCABLE BOGOTA
7545 1609 1523 TPG Internet Pty Ltd
8402 1497 1484 Corbina telecom
7552 1390 1382 Vietel Corporation
4755 1536 1363 Videsh Sanchar Nigam Ltd. Aut
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 /12:236
/13:464 /14:813 /15:1455 /16:12133 /17:6290 /18:10396
/19:20515 /20:28654 /21:28041 /22:37685 /23:36383 /24:199184
/25:67 /26:85 /27:115 /28:283 /29:110 /30:488
/31:53 /32:482
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2184 3545 bellsouth.net, inc.
18566 2047 2098 Covad Communications
7029 1978 2323 Windstream Communications Inc
3352 1753 2209 Internet Access Network of TD
10620 1589 1694 TVCABLE BOGOTA
8402 1474 1497 Corbina telecom
30036 1357 1395 Mediacom Communications Corp
11492 1118 1156 Cable One
1785 1057 1841 AppliedTheory Corporation
7011 1048 1166 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:411 2:487 4:19 5:1 6:3 8:362
12:1958 13:1 14:543 15:11 16:3 17:7
20:9 23:58 24:1678 27:964 31:611 32:150
33:4 34:2 36:4 38:759 39:1 40:110
41:2693 42:53 44:3 46:1009 47:3 49:297
50:442 52:13 55:6 56:2 57:49 58:888
59:494 60:363 61:1181 62:1094 63:1977 64:4070
65:2310 66:4309 67:2022 68:1327 69:3300 70:938
71:379 72:1833 73:1 74:2612 75:401 76:328
77:884 78:867 79:480 80:1584 81:957 82:511
83:580 84:626 85:1120 86:412 87:894 88:424
89:1609 90:237 91:4231 92:535 93:1540 94:1312
95:1096 96:441 97:284 98:932 99:37 101:220
103:394 106:70 107:74 108:76 109:1055 110:669
111:792 112:332 113:484 114:615 115:704 116:909
117:719 118:913 119:1264 120:339 121:712 122:1567
123:1021 124:1357 125:1362 128:250 129:187 130:166
131:593 132:146 133:21 134:220 135:54 136:213
137:140 138:284 139:136 140:489 141:298 142:392
143:428 144:493 145:64 146:477 147:226 148:696
149:267 150:166 151:192 152:447 153:178 154:7
155:381 156:208 157:363 158:154 159:480 160:326
161:214 162:340 163:174 164:510 165:388 166:537
167:438 168:742 169:147 170:872 171:86 172:4
173:1726 174:690 175:434 176:277 177:351 178:1072
180:1102 181:36 182:658 183:218 184:374 185:1
186:1295 187:724 188:943 189:871 190:5134 192:5954
193:5056 194:3587 195:3128 196:1263 197:165 198:3635
199:4185 200:5520 201:1685 202:8553 203:8508 204:4300
205:2356 206:2693 207:2835 208:4033 209:3605 210:2728
211:1445 212:2126 213:1813 214:787 215:95 216:4938
217:1620 218:560 219:344 220:1245 221:504 222:346
223:278
End of report
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