Routing Table Report 00:00 GMT Fri 15 Apr, 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: 358560
Prefixes after maximum aggregation: 161638
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 172008
Total ASes present in the Internet Routing Table: 37313
Prefixes per ASN: 9.61
Origin-only ASes present in the Internet Routing Table: 31377
Origin ASes announcing only one prefix: 14984
Transit ASes present in the Internet Routing Table: 4935
Transit-only ASes present in the Internet Routing Table: 119
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 26
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 2848
Unregistered ASNs in the Routing Table: 281
Number of 32-bit ASNs allocated by the RIRs: 1291
Number of 32-bit ASNs visible in the Routing Table: 1001
Prefixes from 32-bit ASNs in the Routing Table: 2206
Special use prefixes present in the Routing Table: 76
Prefixes being announced from unallocated address space: 171
Number of addresses announced to Internet: 2412451769
Equivalent to 143 /8s, 203 /16s and 23 /24s
Percentage of available address space announced: 65.1
Percentage of allocated address space announced: 65.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.5
Total number of prefixes smaller than registry allocations: 148469
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86004
Total APNIC prefixes after maximum aggregation: 28774
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 83098
Unique aggregates announced from the APNIC address blocks: 37060
APNIC Region origin ASes present in the Internet Routing Table: 4391
APNIC Prefixes per ASN: 18.92
APNIC Region origin ASes announcing only one prefix: 1234
APNIC Region transit ASes present in the Internet Routing Table: 674
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 48
Number of APNIC addresses announced to Internet: 608943041
Equivalent to 36 /8s, 75 /16s and 187 /24s
Percentage of available APNIC address space announced: 77.2
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
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: 142676
Total ARIN prefixes after maximum aggregation: 73037
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 114788
Unique aggregates announced from the ARIN address blocks: 42172
ARIN Region origin ASes present in the Internet Routing Table: 14329
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5448
ARIN Region transit ASes present in the Internet Routing Table: 1441
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 11
Number of ARIN addresses announced to Internet: 798638104
Equivalent to 47 /8s, 154 /16s and 64 /24s
Percentage of available ARIN address space announced: 63.5
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: 87190
Total RIPE prefixes after maximum aggregation: 48024
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 79499
Unique aggregates announced from the RIPE address blocks: 50387
RIPE Region origin ASes present in the Internet Routing Table: 15537
RIPE Prefixes per ASN: 5.12
RIPE Region origin ASes announcing only one prefix: 7739
RIPE Region transit ASes present in the Internet Routing Table: 2398
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 21
Number of RIPE region 32-bit ASNs visible in the Routing Table: 743
Number of RIPE addresses announced to Internet: 466849212
Equivalent to 27 /8s, 211 /16s and 141 /24s
Percentage of available RIPE address space announced: 75.2
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: 32468
Total LACNIC prefixes after maximum aggregation: 7473
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 31451
Unique aggregates announced from the LACNIC address blocks: 16412
LACNIC Region origin ASes present in the Internet Routing Table: 1434
LACNIC Prefixes per ASN: 21.93
LACNIC Region origin ASes announcing only one prefix: 427
LACNIC Region transit ASes present in the Internet Routing Table: 258
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 194
Number of LACNIC addresses announced to Internet: 81883788
Equivalent to 4 /8s, 225 /16s and 114 /24s
Percentage of available LACNIC address space announced: 54.2
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: 7720
Total AfriNIC prefixes after maximum aggregation: 1838
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 6072
Unique aggregates announced from the AfriNIC address blocks: 1875
AfriNIC Region origin ASes present in the Internet Routing Table: 446
AfriNIC Prefixes per ASN: 13.61
AfriNIC Region origin ASes announcing only one prefix: 136
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 22761216
Equivalent to 1 /8s, 91 /16s and 79 /24s
Percentage of available AfriNIC address space announced: 33.9
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 1870 9492 599 Korea Telecom (KIX)
17974 1812 507 30 PT TELEKOMUNIKASI INDONESIA
7545 1498 300 81 TPG Internet Pty Ltd
4755 1446 638 166 Videsh Sanchar Nigam Ltd. Aut
24560 1137 322 203 Bharti Airtel Ltd.
9583 1055 77 496 Sify Limited
9829 1008 870 50 BSNL National Internet Backbo
17488 957 162 98 Hathway IP Over Cable Interne
18101 935 116 139 Reliance Infocom Ltd Internet
4808 879 1925 263 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 3666 3822 256 bellsouth.net, inc.
4323 2656 1106 396 Time Warner Telecom
1785 1791 681 127 AppliedTheory Corporation
18566 1666 336 219 Covad Communications
6478 1623 307 37 AT&T Worldnet Services
20115 1588 1556 641 Charter Communications
19262 1494 4933 297 Verizon Global Networks
7018 1360 6962 889 AT&T WorldNet Services
22773 1298 2865 84 Cox Communications, Inc.
2386 1272 535 916 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 1012 797 172 KPNQwest Backbone AS
9116 542 326 30 Goldenlines main autonomous s
6830 517 1780 318 UPC Distribution Services
3292 510 2013 393 TDC Tele Danmark
34984 508 98 185 Tellcom Iletisim Hizmetleri
29049 467 33 34 AzerSat LLC.
8866 447 134 26 Bulgarian Telecommunication C
20940 441 127 338 Akamai Technologies European
8402 423 320 32 Corbina telecom
3320 417 7607 363 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 1426 265 157 TVCABLE BOGOTA
28573 1280 972 86 Types of queries are: POCs, o
8151 1245 2667 367 Uninet S.A. de C.V.
7303 924 465 147 Telecom Argentina Stet-France
6503 902 354 73 AVANTEL, S.A.
14420 663 53 91 Types of queries are: POCs, o
22047 567 310 15 Types of queries are: POCs, o
3816 518 225 97 COLOMBIA TELECOMUNICACIONES S
27947 490 54 48 Telconet S.A
11172 487 99 81 Alestra
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 838 445 11 TEDATA
24863 778 147 39 LINKdotNET AS number
15475 430 90 8 Nile Online
36992 295 287 12 Etisalat MISR
3741 266 985 227 The Internet Solution
6713 235 215 13 Itissalat Al-MAGHRIB
33776 227 13 5 Starcomms Nigeria Limited
24835 222 78 10 RAYA Telecom - Egypt
29571 161 17 11 Ci Telecom Autonomous system
16637 150 441 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 3666 3822 256 bellsouth.net, inc.
4323 2656 1106 396 Time Warner Telecom
23456 2206 643 1196 >>UNKNOWN<<
4766 1870 9492 599 Korea Telecom (KIX)
17974 1812 507 30 PT TELEKOMUNIKASI INDONESIA
1785 1791 681 127 AppliedTheory Corporation
18566 1666 336 219 Covad Communications
6478 1623 307 37 AT&T Worldnet Services
20115 1588 1556 641 Charter Communications
7545 1498 300 81 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
4323 2656 2260 Time Warner Telecom
17974 1812 1782 PT TELEKOMUNIKASI INDONESIA
1785 1791 1664 AppliedTheory Corporation
6478 1623 1586 AT&T Worldnet Services
18566 1666 1447 Covad Communications
7545 1498 1417 TPG Internet Pty Ltd
4755 1446 1280 Videsh Sanchar Nigam Ltd. Aut
4766 1870 1271 Korea Telecom (KIX)
10620 1426 1269 TVCABLE BOGOTA
11492 1262 1247 Cable One
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
45083 UNALLOCATED 1.45.0.0/16 4808 CNCGROUP IP network:
45083 UNALLOCATED 1.45.92.0/22 4808 CNCGROUP IP network:
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13746 UNALLOCATED 12.24.56.0/24 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
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
2.56.0.0/16 44559 E-Rent LLC
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
31.7.40.0/21 35063 TKChopin Computer Centre
31.7.56.0/21 51852 Private Layer INC
31.7.146.0/23 49360 Rp Engineering di Romano Ales
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 /8:21 /9:12 /10:26 /11:77 /12:220
/13:452 /14:778 /15:1402 /16:11721 /17:5991 /18:9763
/19:19652 /20:25837 /21:25964 /22:34019 /23:33051 /24:186949
/25:372 /26:351 /27:167 /28:176 /29:204 /30:655
/31:60 /32:640
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2262 3666 bellsouth.net, inc.
18566 1643 1666 Covad Communications
6478 1577 1623 AT&T Worldnet Services
4323 1352 2656 Time Warner Telecom
10620 1316 1426 TVCABLE BOGOTA
11492 1211 1262 Cable One
23456 1147 2206 >>UNKNOWN<<
7011 1062 1161 Citizens Utilities
1785 1058 1791 AppliedTheory Corporation
286 873 1012 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:255 2:85 4:18 5:1 8:348 12:2004
13:1 14:436 15:15 16:3 17:8 20:9
23:5 24:1618 27:718 31:220 32:126 33:3
34:2 37:1 38:765 40:101 41:2397 42:1
44:3 46:852 47:4 49:170 50:358 52:13
55:5 56:2 57:40 58:847 59:482 60:387
61:1240 62:1023 63:1933 64:3925 65:2327 66:4343
67:1835 68:1257 69:3057 70:745 71:351 72:1937
73:3 74:2399 75:313 76:345 77:879 78:686
79:471 80:1101 81:836 82:518 83:466 84:664
85:1077 86:614 87:789 88:346 89:1622 90:181
91:3721 92:518 93:1067 94:1289 95:799 96:453
97:250 98:823 99:35 101:61 103:1 106:1
107:4 108:80 109:964 110:543 111:694 112:324
113:391 114:529 115:683 116:957 117:675 118:802
119:1132 120:291 121:677 122:1630 123:1063 124:1247
125:1266 128:266 129:166 130:172 131:567 132:104
133:20 134:219 135:49 136:213 137:142 138:302
139:115 140:487 141:174 142:397 143:390 144:484
145:53 146:441 147:215 148:594 149:234 150:171
151:187 152:307 153:180 154:3 155:394 156:190
157:356 158:132 159:381 160:315 161:244 162:277
163:164 164:489 165:367 166:514 167:419 168:725
169:155 170:782 171:75 172:1 173:1509 174:533
175:352 177:71 178:868 180:809 181:7 182:420
183:197 184:324 185:1 186:1131 187:807 188:996
189:1006 190:4839 192:5812 193:4837 194:3514 195:3106
196:1213 197:16 198:3581 199:3923 200:5539 201:1503
202:8355 203:8441 204:4135 205:2331 206:2754 207:3030
208:3962 209:3491 210:2733 211:1364 212:2033 213:1781
214:733 215:67 216:4875 217:1671 218:561 219:385
220:1197 221:476 222:340 223:132
End of report
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