Routing Table Report 00:00 GMT Wed 27 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: 360430
Prefixes after maximum aggregation: 162110
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 175381
Total ASes present in the Internet Routing Table: 37410
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 31479
Origin ASes announcing only one prefix: 15032
Transit ASes present in the Internet Routing Table: 4909
Transit-only ASes present in the Internet Routing Table: 114
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 22
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 2969
Unregistered ASNs in the Routing Table: 302
Number of 32-bit ASNs allocated by the RIRs: 1311
Number of 32-bit ASNs visible in the Routing Table: 1022
Prefixes from 32-bit ASNs in the Routing Table: 2293
Special use prefixes present in the Routing Table: 76
Prefixes being announced from unallocated address space: 161
Number of addresses announced to Internet: 2420301369
Equivalent to 144 /8s, 66 /16s and 222 /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: 90.5
Total number of prefixes smaller than registry allocations: 149658
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86730
Total APNIC prefixes after maximum aggregation: 28823
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 83310
Unique aggregates announced from the APNIC address blocks: 36892
APNIC Region origin ASes present in the Internet Routing Table: 4403
APNIC Prefixes per ASN: 18.92
APNIC Region origin ASes announcing only one prefix: 1237
APNIC Region transit ASes present in the Internet Routing Table: 680
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 48
Number of APNIC addresses announced to Internet: 610841537
Equivalent to 36 /8s, 104 /16s and 179 /24s
Percentage of available APNIC address space announced: 77.5
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: 143128
Total ARIN prefixes after maximum aggregation: 73215
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 115165
Unique aggregates announced from the ARIN address blocks: 45166
ARIN Region origin ASes present in the Internet Routing Table: 14351
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5458
ARIN Region transit ASes present in the Internet Routing Table: 1443
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: 799074584
Equivalent to 47 /8s, 160 /16s and 233 /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: 87431
Total RIPE prefixes after maximum aggregation: 48169
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 79756
Unique aggregates announced from the RIPE address blocks: 50766
RIPE Region origin ASes present in the Internet Routing Table: 15578
RIPE Prefixes per ASN: 5.12
RIPE Region origin ASes announcing only one prefix: 7773
RIPE Region transit ASes present in the Internet Routing Table: 2379
Average RIPE Region AS path length visible: 3.8
Max RIPE Region AS path length visible: 21
Number of RIPE region 32-bit ASNs visible in the Routing Table: 760
Number of RIPE addresses announced to Internet: 467586236
Equivalent to 27 /8s, 222 /16s and 204 /24s
Percentage of available RIPE address space announced: 75.3
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: 32761
Total LACNIC prefixes after maximum aggregation: 7466
LACNIC Deaggregation factor: 4.39
Prefixes being announced from the LACNIC address blocks: 31791
Unique aggregates announced from the LACNIC address blocks: 16500
LACNIC Region origin ASes present in the Internet Routing Table: 1442
LACNIC Prefixes per ASN: 22.05
LACNIC Region origin ASes announcing only one prefix: 428
LACNIC Region transit ASes present in the Internet Routing Table: 261
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 198
Number of LACNIC addresses announced to Internet: 82675980
Equivalent to 4 /8s, 237 /16s and 137 /24s
Percentage of available LACNIC address space announced: 54.8
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: 7789
Total AfriNIC prefixes after maximum aggregation: 1841
AfriNIC Deaggregation factor: 4.23
Prefixes being announced from the AfriNIC address blocks: 6133
Unique aggregates announced from the AfriNIC address blocks: 1891
AfriNIC Region origin ASes present in the Internet Routing Table: 448
AfriNIC Prefixes per ASN: 13.69
AfriNIC Region origin ASes announcing only one prefix: 136
AfriNIC Region transit ASes present in the Internet Routing Table: 97
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 23373312
Equivalent to 1 /8s, 100 /16s and 166 /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 1869 9490 601 Korea Telecom (KIX)
17974 1821 507 30 PT TELEKOMUNIKASI INDONESIA
4755 1455 634 166 Videsh Sanchar Nigam Ltd. Aut
7545 1437 300 78 TPG Internet Pty Ltd
7552 1195 1064 7 Vietel Corporation
24560 1151 324 186 Bharti Airtel Ltd.
9583 1056 78 494 Sify Limited
9829 1008 870 50 BSNL National Internet Backbo
17488 958 165 99 Hathway IP Over Cable Interne
18101 933 116 138 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 3647 3822 256 bellsouth.net, inc.
4323 2646 1105 400 Time Warner Telecom
1785 1792 681 128 AppliedTheory Corporation
18566 1765 349 229 Covad Communications
6478 1647 310 46 AT&T Worldnet Services
20115 1585 1556 638 Charter Communications
19262 1496 4933 299 Verizon Global Networks
7018 1357 6815 887 AT&T WorldNet Services
22773 1299 2865 84 Cox Communications, Inc.
2386 1271 536 912 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 1021 798 175 KPNQwest Backbone AS
9116 541 326 30 Goldenlines main autonomous s
6830 520 1780 321 UPC Distribution Services
3292 511 1997 392 TDC Tele Danmark
34984 509 106 182 Tellcom Iletisim Hizmetleri
29049 450 33 48 AzerSat LLC.
8866 447 134 26 Bulgarian Telecommunication C
20940 444 130 338 Akamai Technologies European
3320 422 7609 367 Deutsche Telekom AG
8402 412 320 31 Corbina telecom
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 1444 268 160 TVCABLE BOGOTA
8151 1353 2669 366 Uninet S.A. de C.V.
28573 1284 988 87 Types of queries are: POCs, o
7303 927 467 149 Telecom Argentina Stet-France
6503 905 354 73 AVANTEL, S.A.
14420 663 53 91 Types of queries are: POCs, o
22047 566 310 15 Types of queries are: POCs, o
3816 518 225 97 COLOMBIA TELECOMUNICACIONES S
14117 492 46 43 Telefonica del Sur S.A.
27947 491 53 47 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 879 445 11 TEDATA
24863 778 147 39 LINKdotNET AS number
15475 429 90 8 Nile Online
36992 300 415 13 Etisalat MISR
3741 267 985 227 The Internet Solution
6713 238 215 13 Itissalat Al-MAGHRIB
33776 227 13 5 Starcomms Nigeria Limited
24835 223 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 3647 3822 256 bellsouth.net, inc.
4323 2646 1105 400 Time Warner Telecom
23456 2293 654 1250 >>UNKNOWN<<
4766 1869 9490 601 Korea Telecom (KIX)
17974 1821 507 30 PT TELEKOMUNIKASI INDONESIA
1785 1792 681 128 AppliedTheory Corporation
18566 1765 349 229 Covad Communications
6478 1647 310 46 AT&T Worldnet Services
20115 1585 1556 638 Charter Communications
19262 1496 4933 299 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 2646 2246 Time Warner Telecom
17974 1821 1791 PT TELEKOMUNIKASI INDONESIA
1785 1792 1664 AppliedTheory Corporation
6478 1647 1601 AT&T Worldnet Services
18566 1765 1536 Covad Communications
7545 1437 1359 TPG Internet Pty Ltd
4755 1455 1289 Videsh Sanchar Nigam Ltd. Aut
10620 1444 1284 TVCABLE BOGOTA
4766 1869 1268 Korea Telecom (KIX)
11492 1258 1243 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 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
23.19.0.0/16 15003 TEGRIS Corporation
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<<
45.127.0.0/16 13767 NetworkTwo Communications Gro
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 /10:28 /11:78 /12:221
/13:459 /14:792 /15:1411 /16:11786 /17:5989 /18:9933
/19:19699 /20:26310 /21:26035 /22:34203 /23:33186 /24:187610
/25:372 /26:357 /27:167 /28:269 /29:182 /30:618
/31:61 /32:631
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2248 3647 bellsouth.net, inc.
18566 1733 1765 Covad Communications
6478 1601 1647 AT&T Worldnet Services
4323 1342 2646 Time Warner Telecom
10620 1334 1444 TVCABLE BOGOTA
11492 1207 1258 Cable One
23456 1152 2293 >>UNKNOWN<<
7011 1062 1161 Citizens Utilities
1785 1059 1792 AppliedTheory Corporation
286 881 1021 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:263 2:65 4:18 5:1 6:3 8:352
12:2009 13:1 14:436 15:15 16:3 17:8
20:9 23:5 24:1621 27:729 31:226 32:126
33:3 34:2 37:1 38:764 40:101 41:2444
42:3 44:3 46:880 47:4 49:176 50:371
52:13 55:4 56:2 57:40 58:847 59:482
60:357 61:1270 62:1002 63:1927 64:3966 65:2325
66:4386 67:1890 68:1257 69:3065 70:746 71:350
72:1943 73:3 74:2417 75:311 76:344 77:876
78:688 79:471 80:1110 81:839 82:510 83:472
84:667 85:1094 86:613 87:769 88:338 89:1641
90:183 91:3732 92:520 93:1072 94:1299 95:810
96:474 97:251 98:832 99:35 101:66 103:5
106:1 107:5 108:84 109:930 110:558 111:698
112:324 113:398 114:522 115:686 116:966 117:681
118:806 119:1140 120:301 121:675 122:1625 123:1072
124:1250 125:1220 128:267 129:167 130:172 131:567
132:113 133:19 134:219 135:49 136:214 137:142
138:302 139:118 140:488 141:174 142:403 143:400
144:484 145:52 146:442 147:218 148:579 149:243
150:173 151:187 152:308 153:179 154:3 155:396
156:191 157:355 158:132 159:384 160:314 161:243
162:277 163:165 164:477 165:368 166:511 167:425
168:719 169:154 170:786 171:76 172:1 173:1530
174:534 175:361 177:80 178:870 180:825 181:13
182:434 183:201 184:336 185:1 186:1137 187:825
188:994 189:1020 190:4862 192:5825 193:4857 194:3522
195:3111 196:1222 197:16 198:3584 199:3925 200:5544
201:1507 202:8354 203:8436 204:4137 205:2324 206:2769
207:3031 208:3985 209:3500 210:2719 211:1386 212:2032
213:1769 214:734 215:67 216:4897 217:1670 218:565
219:375 220:1200 221:485 222:342 223:143
End of report
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