Routing Table Report 00:00 GMT Fri 26 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: 372330
Prefixes after maximum aggregation: 168021
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 178276
Total ASes present in the Internet Routing Table: 38645
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 32015
Origin ASes announcing only one prefix: 15398
Transit ASes present in the Internet Routing Table: 5275
Transit-only ASes present in the Internet Routing Table: 154
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: 4331
Unregistered ASNs in the Routing Table: 670
Number of 32-bit ASNs allocated by the RIRs: 1674
Number of 32-bit ASNs visible in the Routing Table: 1355
Prefixes from 32-bit ASNs in the Routing Table: 3128
Special use prefixes present in the Routing Table: 79
Prefixes being announced from unallocated address space: 111
Number of addresses announced to Internet: 2303339539
Equivalent to 137 /8s, 74 /16s and 44 /24s
Percentage of available address space announced: 62.1
Percentage of allocated address space announced: 62.1
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: 154146
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90556
Total APNIC prefixes after maximum aggregation: 29389
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 87154
Unique aggregates announced from the APNIC address blocks: 36624
APNIC Region origin ASes present in the Internet Routing Table: 4530
APNIC Prefixes per ASN: 19.24
APNIC Region origin ASes announcing only one prefix: 1263
APNIC Region transit ASes present in the Internet Routing Table: 724
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: 75
Number of APNIC addresses announced to Internet: 609185024
Equivalent to 36 /8s, 79 /16s and 109 /24s
Percentage of available APNIC address space announced: 77.3
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: 145609
Total ARIN prefixes after maximum aggregation: 75409
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 117228
Unique aggregates announced from the ARIN address blocks: 44655
ARIN Region origin ASes present in the Internet Routing Table: 14634
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5610
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: 666666008
Equivalent to 39 /8s, 188 /16s and 132 /24s
Percentage of available ARIN address space announced: 53.0
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: 89796
Total RIPE prefixes after maximum aggregation: 49965
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 82158
Unique aggregates announced from the RIPE address blocks: 52454
RIPE Region origin ASes present in the Internet Routing Table: 15930
RIPE Prefixes per ASN: 5.16
RIPE Region origin ASes announcing only one prefix: 7923
RIPE Region transit ASes present in the Internet Routing Table: 2541
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: 969
Number of RIPE addresses announced to Internet: 473562316
Equivalent to 28 /8s, 57 /16s and 252 /24s
Percentage of available RIPE address space announced: 76.3
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: 34623
Total LACNIC prefixes after maximum aggregation: 7725
LACNIC Deaggregation factor: 4.48
Prefixes being announced from the LACNIC address blocks: 33876
Unique aggregates announced from the LACNIC address blocks: 17456
LACNIC Region origin ASes present in the Internet Routing Table: 1507
LACNIC Prefixes per ASN: 22.48
LACNIC Region origin ASes announcing only one prefix: 451
LACNIC Region transit ASes present in the Internet Routing Table: 280
Average LACNIC Region AS path length visible: 4.3
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 295
Number of LACNIC addresses announced to Internet: 87781896
Equivalent to 5 /8s, 59 /16s and 114 /24s
Percentage of available LACNIC address space announced: 58.1
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: 8408
Total AfriNIC prefixes after maximum aggregation: 2081
AfriNIC Deaggregation factor: 4.04
Prefixes being announced from the AfriNIC address blocks: 6509
Unique aggregates announced from the AfriNIC address blocks: 2090
AfriNIC Region origin ASes present in the Internet Routing Table: 487
AfriNIC Prefixes per ASN: 13.37
AfriNIC Region origin ASes announcing only one prefix: 151
AfriNIC Region transit ASes present in the Internet Routing Table: 105
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: 26883584
Equivalent to 1 /8s, 154 /16s and 54 /24s
Percentage of available AfriNIC address space announced: 40.1
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 11038 646 Korea Telecom (KIX)
17974 1933 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1574 301 83 TPG Internet Pty Ltd
4755 1531 374 163 Videsh Sanchar Nigam Ltd. Aut
7552 1416 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 1035 192 147 Hathway IP Over Cable Interne
4808 984 2027 280 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 3581 3817 228 bellsouth.net, inc.
18566 1912 364 240 Covad Communications
1785 1823 681 124 AppliedTheory Corporation
4323 1614 1101 396 Time Warner Telecom
7029 1599 1033 208 Windstream Communications Inc
20115 1588 1538 632 Charter Communications
22773 1442 2903 97 Cox Communications, Inc.
7018 1358 7084 889 AT&T WorldNet Services
2386 1227 516 888 AT&T Data Communications Serv
7011 1188 325 649 Citizens Utilities
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
3292 523 2080 404 TDC Tele Danmark
6830 523 1810 321 UPC Distribution Services
20940 494 147 384 Akamai Technologies European
8866 458 133 26 Bulgarian Telecommunication C
12479 456 593 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 1611 297 155 TVCABLE BOGOTA
8151 1438 2771 349 Uninet S.A. de C.V.
28573 1264 996 67 Types of queries are: POCs, o
7303 1058 578 172 Telecom Argentina Stet-France
14420 711 56 87 Types of queries are: POCs, o
6503 608 450 75 AVANTEL, S.A.
22047 578 322 17 Types of queries are: POCs, o
27947 571 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 635 445 11 TEDATA
15475 512 74 8 Nile Online
36992 303 415 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 175 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 3581 3817 228 bellsouth.net, inc.
23456 3128 744 1683 >>UNKNOWN<<
4766 1941 11038 646 Korea Telecom (KIX)
17974 1933 516 31 PT TELEKOMUNIKASI INDONESIA
18566 1912 364 240 Covad Communications
1785 1823 681 124 AppliedTheory Corporation
4323 1614 1101 396 Time Warner Telecom
10620 1611 297 155 TVCABLE BOGOTA
7029 1599 1033 208 Windstream Communications Inc
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 1933 1902 PT TELEKOMUNIKASI INDONESIA
1785 1823 1699 AppliedTheory Corporation
18566 1912 1672 Covad Communications
7545 1574 1491 TPG Internet Pty Ltd
10620 1611 1456 TVCABLE BOGOTA
23456 3128 1445 >>UNKNOWN<<
7552 1416 1409 Vietel Corporation
7029 1599 1391 Windstream Communications Inc
4755 1531 1368 Videsh Sanchar Nigam Ltd. Aut
22773 1442 1345 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
/13:461 /14:805 /15:1441 /16:12060 /17:6189 /18:10235
/19:20104 /20:27785 /21:27155 /22:36107 /23:34932 /24:192865
/25:78 /26:85 /27:115 /28:285 /29:125 /30:542
/31:97 /32:491
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2212 3581 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1539 3128 >>UNKNOWN<<
10620 1506 1611 TVCABLE BOGOTA
7029 1284 1599 Windstream Communications Inc
11492 1107 1153 Cable One
7011 1063 1188 Citizens Utilities
1785 1053 1823 AppliedTheory Corporation
22773 936 1442 Cox Communications, Inc.
30036 890 916 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 24:1682 27:912 31:516 32:149
33:4 34:2 36:4 38:738 40:107 41:2510
42:50 44:3 46:1071 47:3 49:218 50:416
52:13 54:2 55:5 56:2 57:45 58:862
59:502 60:376 61:1179 62:1108 63:1952 64:4057
65:2306 66:3963 67:1954 68:1289 69:3233 70:793
71:262 72:1826 73:1 74:2423 75:342 76:347
77:867 78:710 79:484 80:1126 81:833 82:508
83:479 84:691 85:1084 86:517 87:855 88:343
89:1558 90:224 91:4057 92:525 93:1142 94:1350
95:867 96:375 97:267 98:939 99:37 101:79
103:235 106:79 107:36 108:66 109:1017 110:646
111:734 112:314 113:414 114:556 115:704 116:1009
117:682 118:883 119:1196 120:331 121:706 122:1618
123:988 124:1314 125:1337 128:246 129:179 130:166
131:580 132:119 133:21 134:214 135:54 136:215
137:137 138:293 139:128 140:489 141:250 142:390
143:426 144:487 145:60 146:461 147:247 148:638
149:251 150:201 151:168 152:441 153:179 154:5
155:401 156:203 157:342 158:138 159:457 160:319
161:207 162:331 163:166 164:517 165:396 166:535
167:436 168:744 169:154 170:841 171:82 172:1
173:1662 174:629 175:395 176:156 177:240 178:1007
180:955 181:25 182:540 183:242 184:338 185:1
186:1382 187:692 188:938 189:865 190:5104 192:5957
193:5000 194:3540 195:3078 196:1247 197:144 198:3603
199:4080 200:5503 201:1517 202:8413 203:8471 204:4257
205:2344 206:2737 207:2839 208:4126 209:3526 210:2705
211:1465 212:2130 213:1772 214:777 215:76 216:4884
217:1616 218:554 219:353 220:1220 221:516 222:352
223:247
End of report
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