Routing Table Report 00:00 GMT Thu 25 Aug, 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: 372531
Prefixes after maximum aggregation: 167951
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 182932
Total ASes present in the Internet Routing Table: 38618
Prefixes per ASN: 9.65
Origin-only ASes present in the Internet Routing Table: 32012
Origin ASes announcing only one prefix: 15388
Transit ASes present in the Internet Routing Table: 5255
Transit-only ASes present in the Internet Routing Table: 151
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 4279
Unregistered ASNs in the Routing Table: 659
Number of 32-bit ASNs allocated by the RIRs: 1669
Number of 32-bit ASNs visible in the Routing Table: 1351
Prefixes from 32-bit ASNs in the Routing Table: 3113
Special use prefixes present in the Routing Table: 79
Prefixes being announced from unallocated address space: 110
Number of addresses announced to Internet: 2471069963
Equivalent to 147 /8s, 73 /16s and 137 /24s
Percentage of available address space announced: 66.7
Percentage of allocated address space announced: 66.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 154488
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90544
Total APNIC prefixes after maximum aggregation: 29376
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 87158
Unique aggregates announced from the APNIC address blocks: 37791
APNIC Region origin ASes present in the Internet Routing Table: 4529
APNIC Prefixes per ASN: 19.24
APNIC Region origin ASes announcing only one prefix: 1258
APNIC Region transit ASes present in the Internet Routing Table: 721
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 76
Number of APNIC addresses announced to Internet: 624489216
Equivalent to 37 /8s, 56 /16s and 243 /24s
Percentage of available APNIC address space announced: 79.2
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: 145922
Total ARIN prefixes after maximum aggregation: 75399
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 117480
Unique aggregates announced from the ARIN address blocks: 47104
ARIN Region origin ASes present in the Internet Routing Table: 14638
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5615
ARIN Region transit ASes present in the Internet Routing Table: 1535
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804130072
Equivalent to 47 /8s, 238 /16s and 13 /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: 89719
Total RIPE prefixes after maximum aggregation: 49943
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 82089
Unique aggregates announced from the RIPE address blocks: 53554
RIPE Region origin ASes present in the Internet Routing Table: 15914
RIPE Prefixes per ASN: 5.16
RIPE Region origin ASes announcing only one prefix: 7915
RIPE Region transit ASes present in the Internet Routing Table: 2525
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 968
Number of RIPE addresses announced to Internet: 488538316
Equivalent to 29 /8s, 30 /16s and 128 /24s
Percentage of available RIPE address space announced: 78.7
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: 34641
Total LACNIC prefixes after maximum aggregation: 7727
LACNIC Deaggregation factor: 4.48
Prefixes being announced from the LACNIC address blocks: 33793
Unique aggregates announced from the LACNIC address blocks: 17434
LACNIC Region origin ASes present in the Internet Routing Table: 1507
LACNIC Prefixes per ASN: 22.42
LACNIC Region origin ASes announcing only one prefix: 450
LACNIC Region transit ASes present in the Internet Routing Table: 279
Average LACNIC Region AS path length visible: 4.3
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 291
Number of LACNIC addresses announced to Internet: 87810312
Equivalent to 5 /8s, 59 /16s and 225 /24s
Percentage of available LACNIC address space announced: 58.2
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: 8383
Total AfriNIC prefixes after maximum aggregation: 2068
AfriNIC Deaggregation factor: 4.05
Prefixes being announced from the AfriNIC address blocks: 6479
Unique aggregates announced from the AfriNIC address blocks: 2074
AfriNIC Region origin ASes present in the Internet Routing Table: 480
AfriNIC Prefixes per ASN: 13.50
AfriNIC Region origin ASes announcing only one prefix: 150
AfriNIC Region transit ASes present in the Internet Routing Table: 103
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: 26833152
Equivalent to 1 /8s, 153 /16s and 113 /24s
Percentage of available AfriNIC address space announced: 40.0
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 1941 11054 646 Korea Telecom (KIX)
17974 1924 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1574 301 84 TPG Internet Pty Ltd
4755 1530 374 163 Videsh Sanchar Nigam Ltd. Aut
7552 1412 1064 7 Vietel Corporation
24560 1198 336 189 Bharti Airtel Ltd.
9829 1153 989 28 BSNL National Internet Backbo
9583 1076 79 496 Sify Limited
17488 1038 192 146 Hathway IP Over Cable Interne
4808 999 2038 286 CNCGROUP IP network: China169
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 3582 3817 228 bellsouth.net, inc.
18566 1912 364 240 Covad Communications
1785 1821 681 124 AppliedTheory Corporation
7029 1617 1033 209 Windstream Communications Inc
4323 1613 1101 395 Time Warner Telecom
20115 1588 1538 632 Charter Communications
22773 1441 2903 97 Cox Communications, Inc.
19262 1405 4778 395 Verizon Global Networks
7018 1366 7084 896 AT&T WorldNet Services
2386 1232 516 892 AT&T Data Communications Serv
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
286 1034 797 188 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 538 107 181 Tellcom Iletisim Hizmetleri
6830 523 1810 321 UPC Distribution Services
3292 520 2080 404 TDC Tele Danmark
20940 487 142 378 Akamai Technologies European
8866 457 133 26 Bulgarian Telecommunication C
12479 457 593 7 Uni2 Autonomous System
3320 424 8151 370 Deutsche Telekom AG
29049 423 31 57 AzerSat LLC.
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 1608 296 159 TVCABLE BOGOTA
8151 1432 2752 350 Uninet S.A. de C.V.
28573 1256 996 67 Types of queries are: POCs, o
7303 1060 578 173 Telecom Argentina Stet-France
14420 705 56 88 Types of queries are: POCs, o
6503 610 450 76 AVANTEL, S.A.
22047 578 322 17 Types of queries are: POCs, o
27947 569 55 83 Telconet S.A
10481 548 430 20 Prima S.A.
3816 534 232 97 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 807 145 58 LINKdotNET AS number
8452 638 445 11 TEDATA
15475 512 74 8 Nile Online
36992 302 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
33776 230 13 8 Starcomms Nigeria Limited
15706 219 32 6 Sudatel Internet Exchange Aut
12258 195 28 62 YEBO-AS
24835 174 70 11 RAYA Telecom - Egypt
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 3582 3817 228 bellsouth.net, inc.
23456 3113 741 1676 >>UNKNOWN<<
4766 1941 11054 646 Korea Telecom (KIX)
17974 1924 516 31 PT TELEKOMUNIKASI INDONESIA
18566 1912 364 240 Covad Communications
1785 1821 681 124 AppliedTheory Corporation
7029 1617 1033 209 Windstream Communications Inc
4323 1613 1101 395 Time Warner Telecom
10620 1608 296 159 TVCABLE BOGOTA
20115 1588 1538 632 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
17974 1924 1893 PT TELEKOMUNIKASI INDONESIA
1785 1821 1697 AppliedTheory Corporation
18566 1912 1672 Covad Communications
7545 1574 1490 TPG Internet Pty Ltd
10620 1608 1449 TVCABLE BOGOTA
23456 3113 1437 >>UNKNOWN<<
7029 1617 1408 Windstream Communications Inc
7552 1412 1405 Vietel Corporation
4755 1530 1367 Videsh Sanchar Nigam Ltd. Aut
22773 1441 1344 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
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
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
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 /12:233
/13:460 /14:804 /15:1446 /16:12056 /17:6172 /18:10240
/19:20099 /20:27760 /21:27147 /22:36104 /23:34919 /24:193128
/25:79 /26:85 /27:114 /28:291 /29:126 /30:540
/31:97 /32:491
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2213 3582 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1528 3113 >>UNKNOWN<<
10620 1503 1608 TVCABLE BOGOTA
7029 1301 1617 Windstream Communications Inc
11492 1107 1153 Cable One
7011 1056 1168 Citizens Utilities
1785 1053 1821 AppliedTheory Corporation
22773 935 1441 Cox Communications, Inc.
30036 890 915 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:360 2:45 4:19 5:1 6:3 8:345
12:1961 13:1 14:522 15:15 16:3 17:5
20:10 23:31 24:1690 27:913 31:514 32:149
33:4 34:2 36:4 38:737 40:107 41:2502
42:50 44:3 46:1071 47:3 49:219 50:415
52:13 54:2 55:8 56:2 57:45 58:860
59:501 60:376 61:1179 62:1095 63:1956 64:4055
65:2306 66:3960 67:1960 68:1289 69:3224 70:824
71:373 72:1874 73:1 74:2489 75:342 76:347
77:862 78:709 79:486 80:1132 81:832 82:507
83:479 84:689 85:1086 86:517 87:847 88:343
89:1550 90:224 91:4046 92:527 93:1141 94:1352
95:874 96:422 97:267 98:941 99:37 101:79
103:237 106:79 107:35 108:82 109:1015 110:646
111:733 112:314 113:415 114:561 115:700 116:1005
117:682 118:881 119:1204 120:330 121:705 122:1620
123:989 124:1317 125:1337 128:246 129:179 130:171
131:583 132:119 133:21 134:214 135:54 136:214
137:138 138:292 139:128 140:487 141:276 142:390
143:427 144:487 145:60 146:462 147:245 148:690
149:251 150:201 151:190 152:441 153:185 154:5
155:401 156:200 157:342 158:137 159:456 160:319
161:207 162:331 163:166 164:517 165:396 166:537
167:436 168:747 169:154 170:848 171:82 172:1
173:1662 174:629 175:395 176:157 177:229 178:1004
180:944 181:25 182:538 183:236 184:338 185:1
186:1364 187:681 188:938 189:854 190:5108 192:5956
193:4996 194:3540 195:3073 196:1245 197:144 198:3600
199:4081 200:5499 201:1516 202:8410 203:8455 204:4257
205:2347 206:2737 207:2819 208:4130 209:3505 210:2704
211:1466 212:2128 213:1777 214:766 215:70 216:4887
217:1615 218:554 219:355 220:1220 221:516 222:357
223:246
End of report
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