Routing Table Report 00:00 GMT Tue 03 May, 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: 360658
Prefixes after maximum aggregation: 162453
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 175656
Total ASes present in the Internet Routing Table: 37460
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 31358
Origin ASes announcing only one prefix: 15026
Transit ASes present in the Internet Routing Table: 5063
Transit-only ASes present in the Internet Routing Table: 121
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 23
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 3030
Unregistered ASNs in the Routing Table: 316
Number of 32-bit ASNs allocated by the RIRs: 1321
Number of 32-bit ASNs visible in the Routing Table: 1039
Prefixes from 32-bit ASNs in the Routing Table: 2335
Special use prefixes present in the Routing Table: 76
Prefixes being announced from unallocated address space: 148
Number of addresses announced to Internet: 2421613561
Equivalent to 144 /8s, 86 /16s and 227 /24s
Percentage of available address space announced: 65.3
Percentage of allocated address space announced: 65.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.6
Total number of prefixes smaller than registry allocations: 149691
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86890
Total APNIC prefixes after maximum aggregation: 28829
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 83444
Unique aggregates announced from the APNIC address blocks: 36939
APNIC Region origin ASes present in the Internet Routing Table: 4409
APNIC Prefixes per ASN: 18.93
APNIC Region origin ASes announcing only one prefix: 1239
APNIC Region transit ASes present in the Internet Routing Table: 692
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 48
Number of APNIC addresses announced to Internet: 611518145
Equivalent to 36 /8s, 115 /16s and 6 /24s
Percentage of available APNIC address space announced: 77.6
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: 143202
Total ARIN prefixes after maximum aggregation: 73321
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 115213
Unique aggregates announced from the ARIN address blocks: 45172
ARIN Region origin ASes present in the Internet Routing Table: 14354
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5466
ARIN Region transit ASes present in the Internet Routing Table: 1466
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 11
Number of ARIN addresses announced to Internet: 799813144
Equivalent to 47 /8s, 172 /16s and 46 /24s
Percentage of available ARIN address space announced: 63.6
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: 87434
Total RIPE prefixes after maximum aggregation: 48271
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 79820
Unique aggregates announced from the RIPE address blocks: 50870
RIPE Region origin ASes present in the Internet Routing Table: 15590
RIPE Prefixes per ASN: 5.12
RIPE Region origin ASes announcing only one prefix: 7759
RIPE Region transit ASes present in the Internet Routing Table: 2472
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 23
Number of RIPE region 32-bit ASNs visible in the Routing Table: 772
Number of RIPE addresses announced to Internet: 468008572
Equivalent to 27 /8s, 229 /16s and 62 /24s
Percentage of available RIPE address space announced: 75.4
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: 32732
Total LACNIC prefixes after maximum aggregation: 7537
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 31762
Unique aggregates announced from the LACNIC address blocks: 16561
LACNIC Region origin ASes present in the Internet Routing Table: 1447
LACNIC Prefixes per ASN: 21.95
LACNIC Region origin ASes announcing only one prefix: 425
LACNIC Region transit ASes present in the Internet Routing Table: 263
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 203
Number of LACNIC addresses announced to Internet: 82995468
Equivalent to 4 /8s, 242 /16s and 105 /24s
Percentage of available LACNIC address space announced: 55.0
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: 7764
Total AfriNIC prefixes after maximum aggregation: 1858
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6118
Unique aggregates announced from the AfriNIC address blocks: 1915
AfriNIC Region origin ASes present in the Internet Routing Table: 449
AfriNIC Prefixes per ASN: 13.63
AfriNIC Region origin ASes announcing only one prefix: 137
AfriNIC Region transit ASes present in the Internet Routing Table: 98
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 23
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 23375360
Equivalent to 1 /8s, 100 /16s and 174 /24s
Percentage of available AfriNIC address space announced: 34.8
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 1874 9482 602 Korea Telecom (KIX)
17974 1809 507 30 PT TELEKOMUNIKASI INDONESIA
4755 1456 374 164 Videsh Sanchar Nigam Ltd. Aut
7545 1425 301 81 TPG Internet Pty Ltd
7552 1210 1064 7 Vietel Corporation
24560 1152 336 184 Bharti Airtel Ltd.
9583 1056 77 492 Sify Limited
9829 1002 872 54 BSNL National Internet Backbo
17488 960 165 100 Hathway IP Over Cable Interne
4808 951 2020 274 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 3646 3822 256 bellsouth.net, inc.
4323 2600 1102 397 Time Warner Telecom
18566 1791 349 229 Covad Communications
1785 1788 681 127 AppliedTheory Corporation
6478 1658 311 46 AT&T Worldnet Services
20115 1586 1556 639 Charter Communications
19262 1482 4920 329 Verizon Global Networks
7018 1359 6927 892 AT&T WorldNet Services
22773 1300 2865 84 Cox Communications, Inc.
2386 1266 519 909 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 1019 798 175 KPNQwest Backbone AS
9116 541 326 30 Goldenlines main autonomous s
6830 519 1780 320 UPC Distribution Services
3292 518 1997 391 TDC Tele Danmark
34984 508 106 185 Tellcom Iletisim Hizmetleri
29049 450 33 48 AzerSat LLC.
8866 447 134 26 Bulgarian Telecommunication C
20940 447 131 341 Akamai Technologies European
3320 422 7609 367 Deutsche Telekom AG
8551 407 356 39 Bezeq International
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 1448 268 160 TVCABLE BOGOTA
8151 1368 2690 365 Uninet S.A. de C.V.
28573 1277 986 92 Types of queries are: POCs, o
7303 926 467 150 Telecom Argentina Stet-France
6503 800 354 73 AVANTEL, S.A.
14420 665 53 91 Types of queries are: POCs, o
22047 564 310 15 Types of queries are: POCs, o
3816 519 226 98 COLOMBIA TELECOMUNICACIONES S
14117 492 46 43 Telefonica del Sur S.A.
27947 491 53 52 Telconet 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 884 445 11 TEDATA
24863 781 147 38 LINKdotNET AS number
15475 428 90 8 Nile Online
36992 297 415 13 Etisalat MISR
3741 267 985 227 The Internet Solution
6713 240 215 13 Itissalat Al-MAGHRIB
33776 221 12 9 Starcomms Nigeria Limited
24835 207 78 10 RAYA Telecom - Egypt
29571 161 17 11 Ci Telecom Autonomous system
16637 151 441 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 3646 3822 256 bellsouth.net, inc.
4323 2600 1102 397 Time Warner Telecom
23456 2335 665 1272 >>UNKNOWN<<
4766 1874 9482 602 Korea Telecom (KIX)
17974 1809 507 30 PT TELEKOMUNIKASI INDONESIA
18566 1791 349 229 Covad Communications
1785 1788 681 127 AppliedTheory Corporation
6478 1658 311 46 AT&T Worldnet Services
20115 1586 1556 639 Charter Communications
19262 1482 4920 329 Verizon Global Networks
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 2600 2203 Time Warner Telecom
17974 1809 1779 PT TELEKOMUNIKASI INDONESIA
1785 1788 1661 AppliedTheory Corporation
6478 1658 1612 AT&T Worldnet Services
18566 1791 1562 Covad Communications
7545 1425 1344 TPG Internet Pty Ltd
4755 1456 1292 Videsh Sanchar Nigam Ltd. Aut
10620 1448 1288 TVCABLE BOGOTA
4766 1874 1272 Korea Telecom (KIX)
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
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 1239 Sprint
26973 UNALLOCATED 12.39.154.0/23 1239 Sprint
26973 UNALLOCATED 12.39.155.0/24 1239 Sprint
26973 UNALLOCATED 12.39.159.0/24 1239 Sprint
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
31.208.0.0/16 29518 Labs2
31.209.0.0/18 29518 Labs2
31.209.80.0/20 50629 LWLcom GmbH
41.222.79.0/24 36938 >>UNKNOWN<<
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 /10:28 /11:78 /12:221
/13:459 /14:795 /15:1415 /16:11787 /17:6012 /18:9943
/19:19728 /20:26304 /21:26109 /22:34274 /23:33222 /24:187579
/25:375 /26:346 /27:172 /28:284 /29:183 /30:604
/31:64 /32:644
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2246 3646 bellsouth.net, inc.
18566 1759 1791 Covad Communications
6478 1612 1658 AT&T Worldnet Services
10620 1338 1448 TVCABLE BOGOTA
4323 1306 2600 Time Warner Telecom
11492 1211 1262 Cable One
23456 1175 2335 >>UNKNOWN<<
1785 1054 1788 AppliedTheory Corporation
7011 1036 1135 Citizens Utilities
286 879 1019 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:265 2:69 4:18 5:1 6:3 8:352
12:1988 13:1 14:438 15:15 16:3 17:8
20:10 23:5 24:1634 27:730 31:237 32:126
33:3 34:2 37:1 38:766 40:101 41:2452
42:5 44:3 46:889 47:4 49:169 50:378
52:13 55:4 56:2 57:40 58:844 59:485
60:353 61:1268 62:1017 63:1942 64:3967 65:2320
66:4381 67:1893 68:1256 69:3071 70:742 71:351
72:1922 73:3 74:2407 75:315 76:346 77:876
78:697 79:474 80:1110 81:824 82:510 83:458
84:668 85:1088 86:611 87:778 88:329 89:1630
90:183 91:3726 92:513 93:1064 94:1296 95:809
96:478 97:255 98:847 99:35 101:69 103:5
106:1 107:8 108:83 109:953 110:560 111:706
112:320 113:399 114:527 115:687 116:970 117:681
118:812 119:1133 120:306 121:676 122:1618 123:1077
124:1256 125:1221 128:262 129:166 130:172 131:563
132:110 133:19 134:219 135:49 136:214 137:142
138:303 139:125 140:478 141:239 142:403 143:403
144:488 145:52 146:442 147:211 148:594 149:243
150:171 151:187 152:309 153:179 154:3 155:396
156:187 157:354 158:132 159:383 160:314 161:212
162:278 163:164 164:494 165:353 166:511 167:427
168:725 169:154 170:782 171:76 172:1 173:1555
174:540 175:362 177:83 178:872 180:818 181:16
182:436 183:204 184:337 185:1 186:1153 187:791
188:991 189:941 190:4851 192:5823 193:4868 194:3528
195:3110 196:1211 197:16 198:3577 199:3927 200:5530
201:1518 202:8348 203:8417 204:4144 205:2324 206:2770
207:3036 208:3967 209:3492 210:2736 211:1389 212:2033
213:1759 214:729 215:67 216:4897 217:1662 218:567
219:375 220:1202 221:486 222:342 223:144
End of report
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