Routing Table Report 08:00 +10GMT Tue 26 Oct, 2010
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 329665
Prefixes after maximum aggregation: 151644
Deaggregation factor: 2.17
Unique aggregates announced to Internet: 164433
Total ASes present in the Internet Routing Table: 34942
Prefixes per ASN: 9.43
Origin-only ASes present in the Internet Routing Table: 30260
Origin ASes announcing only one prefix: 14803
Transit ASes present in the Internet Routing Table: 4682
Transit-only ASes present in the Internet Routing Table: 100
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (41664) 21
Prefixes from unregistered ASNs in the Routing Table: 388
Unregistered ASNs in the Routing Table: 159
Number of 32-bit ASNs allocated by the RIRs: 840
Prefixes from 32-bit ASNs in the Routing Table: 1204
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 192
Number of addresses announced to Internet: 2543902976
Equivalent to 151 /8s, 160 /16s and 225 /24s
Percentage of available address space announced: 68.6
Percentage of allocated address space announced: 72.6
Percentage of available address space allocated: 94.6
Percentage of address space in use by end-sites: 85.6
Total number of prefixes smaller than registry allocations: 134035
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 78339
Total APNIC prefixes after maximum aggregation: 26903
APNIC Deaggregation factor: 2.91
Prefixes being announced from the APNIC address blocks: 76022
Unique aggregates announced from the APNIC address blocks: 34540
APNIC Region origin ASes present in the Internet Routing Table: 4167
APNIC Prefixes per ASN: 18.24
APNIC Region origin ASes announcing only one prefix: 1186
APNIC Region transit ASes present in the Internet Routing Table: 629
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 560374784
Equivalent to 33 /8s, 102 /16s and 164 /24s
Percentage of available APNIC address space announced: 75.9
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, 42/8, 43/8, 49/8,
58/8, 59/8, 60/8, 61/8, 101/8, 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: 134746
Total ARIN prefixes after maximum aggregation: 69705
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 107796
Unique aggregates announced from the ARIN address blocks: 43504
ARIN Region origin ASes present in the Internet Routing Table: 13907
ARIN Prefixes per ASN: 7.75
ARIN Region origin ASes announcing only one prefix: 5360
ARIN Region transit ASes present in the Internet Routing Table: 1377
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 738013696
Equivalent to 43 /8s, 253 /16s and 50 /24s
Percentage of available ARIN address space announced: 62.8
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, 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, 54/8,
55/8, 56/8, 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, 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: 77402
Total RIPE prefixes after maximum aggregation: 44578
RIPE Deaggregation factor: 1.74
Prefixes being announced from the RIPE address blocks: 70845
Unique aggregates announced from the RIPE address blocks: 46204
RIPE Region origin ASes present in the Internet Routing Table: 14931
RIPE Prefixes per ASN: 4.74
RIPE Region origin ASes announcing only one prefix: 7699
RIPE Region transit ASes present in the Internet Routing Table: 2293
Average RIPE Region AS path length visible: 3.4
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 442579456
Equivalent to 26 /8s, 97 /16s and 58 /24s
Percentage of available RIPE address space announced: 77.6
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, 196608-197631
RIPE Address Blocks 2/8, 25/8, 31/8, 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,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 29749
Total LACNIC prefixes after maximum aggregation: 7111
LACNIC Deaggregation factor: 4.18
Prefixes being announced from the LACNIC address blocks: 28584
Unique aggregates announced from the LACNIC address blocks: 15332
LACNIC Region origin ASes present in the Internet Routing Table: 1362
LACNIC Prefixes per ASN: 20.99
LACNIC Region origin ASes announcing only one prefix: 433
LACNIC Region transit ASes present in the Internet Routing Table: 234
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 76583680
Equivalent to 4 /8s, 144 /16s and 147 /24s
Percentage of available LACNIC address space announced: 57.1
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 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: 7547
Total AfriNIC prefixes after maximum aggregation: 1871
AfriNIC Deaggregation factor: 4.03
Prefixes being announced from the AfriNIC address blocks: 5848
Unique aggregates announced from the AfriNIC address blocks: 1717
AfriNIC Region origin ASes present in the Internet Routing Table: 410
AfriNIC Prefixes per ASN: 14.26
AfriNIC Region origin ASes announcing only one prefix: 125
AfriNIC Region transit ASes present in the Internet Routing Table: 90
Average AfriNIC Region AS path length visible: 3.3
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 20921600
Equivalent to 1 /8s, 63 /16s and 61 /24s
Percentage of available AfriNIC address space announced: 62.4
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1729 9453 510 Korea Telecom (KIX)
7545 1416 299 78 TPG Internet Pty Ltd
4755 1372 378 156 TATA Communications formerly
17488 1364 156 121 Hathway IP Over Cable Interne
17974 1273 303 78 PT TELEKOMUNIKASI INDONESIA
24560 1053 309 173 Bharti Airtel Ltd., Telemedia
9583 1030 76 493 Sify Limited
18101 892 116 133 Reliance Infocom Ltd Internet
4808 882 1622 244 CNCGROUP IP network: China169
9829 827 694 27 BSNL National Internet Backbo
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3763 3666 283 bellsouth.net, inc.
4323 2611 1108 391 Time Warner Telecom
1785 1797 698 130 PaeTec Communications, Inc.
19262 1777 4833 279 Verizon Global Networks
20115 1506 1528 647 Charter Communications
7018 1450 9821 931 AT&T WorldNet Services
6478 1388 279 96 AT&T Worldnet Services
2386 1315 556 930 AT&T Data Communications Serv
11492 1237 231 74 Cable One
22773 1208 2859 62 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
9116 540 328 33 Goldenlines main autonomous s
3292 445 2027 390 TDC Tele Danmark
8866 422 133 25 Bulgarian Telecommunication C
702 404 1869 318 UUNET - Commercial IP service
8551 404 355 38 Bezeq International
34984 381 91 188 BILISIM TELEKOM
3301 379 1688 335 TeliaNet Sweden
3320 377 7332 330 Deutsche Telekom AG
30890 376 80 205 Evolva Telecom
12479 365 576 5 Uni2 Autonomous System
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1329 247 150 TVCABLE BOGOTA
8151 1207 2581 363 UniNet S.A. de C.V.
28573 1202 920 84 NET Servicos de Comunicao S.A
7303 805 440 96 Telecom Argentina Stet-France
6503 780 223 258 AVANTEL, S.A.
22047 563 310 15 VTR PUNTO NET S.A.
14420 545 39 76 ANDINATEL S.A.
3816 485 210 97 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 448 32 27 Telefonica del Sur S.A.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1083 445 10 TEDATA
24863 740 147 37 LINKdotNET AS number
36992 643 278 160 Etisalat MISR
3741 268 907 225 The Internet Solution
24835 210 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 203 19 11 Ci Telecom Autonomous system
2018 197 277 64 Tertiary Education Network
33776 196 12 14 Starcomms Nigeria Limited
16637 157 441 94 MTN Network Solutions
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3763 3666 283 bellsouth.net, inc.
4323 2611 1108 391 Time Warner Telecom
1785 1797 698 130 PaeTec Communications, Inc.
19262 1777 4833 279 Verizon Global Networks
4766 1729 9453 510 Korea Telecom (KIX)
20115 1506 1528 647 Charter Communications
7018 1450 9821 931 AT&T WorldNet Services
7545 1416 299 78 TPG Internet Pty Ltd
6478 1388 279 96 AT&T Worldnet Services
4755 1372 378 156 TATA Communications formerly
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2611 2220 Time Warner Telecom
1785 1797 1667 PaeTec Communications, Inc.
19262 1777 1498 Verizon Global Networks
7545 1416 1338 TPG Internet Pty Ltd
6478 1388 1292 AT&T Worldnet Services
17488 1364 1243 Hathway IP Over Cable Interne
4766 1729 1219 Korea Telecom (KIX)
4755 1372 1216 TATA Communications formerly
17974 1273 1195 PT TELEKOMUNIKASI INDONESIA
10620 1329 1179 TVCABLE BOGOTA
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65333 PRIVATE 5.0.0.0/8 0 *
53562 UNALLOCATED 8.19.94.0/24 3356 Level 3 Communicatio
65333 PRIVATE 10.0.0.0/8 0 *
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
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
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
31.0.0.0/16 12654 RIPE NCC RIS Project
31.1.0.0/21 12654 RIPE NCC RIS Project
31.1.24.0/24 12654 RIPE NCC RIS Project
36.0.0.0/8 237 Merit Network
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
42.0.0.0/8 237 Merit Network
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
64.21.192.0/20 11610 Internet Nebraska Corporation
Complete listing at http://thyme.rand.apnic.net/london/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 /8:34 /9:10 /10:25 /11:68 /12:208
/13:419 /14:745 /15:1346 /16:11335 /17:5488 /18:9318
/19:18624 /20:23828 /21:23733 /22:31227 /23:30396 /24:172427
/25:11 /26:18 /27:26 /28:148 /29:92 /30:36
/31:0 /32:103
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2327 3763 bellsouth.net, inc.
4323 1405 2611 Time Warner Telecom
6478 1350 1388 AT&T Worldnet Services
10620 1220 1329 TVCABLE BOGOTA
11492 1194 1237 Cable One
1785 1077 1797 PaeTec Communications, Inc.
7011 1058 1159 Citizens Utilities
18566 1040 1059 Covad Communications
8452 988 1083 TEDATA
19262 903 1777 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:90 2:11 4:13 8:314 12:2012 13:8
14:28 15:18 16:3 17:9 20:9 24:1387
27:378 31:1 32:59 33:12 38:692 40:97
41:2592 44:3 46:171 47:10 49:4 50:1
52:12 55:5 56:2 57:25 58:741 59:496
60:478 61:997 62:1005 63:1958 64:3725 65:2342
66:4052 67:1820 68:1131 69:2849 70:753 71:376
72:1935 73:2 74:2321 75:294 76:326 77:854
78:690 79:444 80:1055 81:804 82:506 83:453
84:689 85:1020 86:473 87:704 88:327 89:1571
90:109 91:3127 92:436 93:1008 94:1103 95:697
96:390 97:222 98:634 99:32 101:3 108:64
109:713 110:438 111:616 112:291 113:303 114:457
115:603 116:1129 117:653 118:545 119:973 120:157
121:696 122:1545 123:913 124:1213 125:1241 128:177
129:146 130:162 131:561 132:271 133:20 134:199
135:46 136:210 137:134 138:279 139:107 140:456
141:198 142:333 143:381 144:484 145:55 146:427
147:172 148:602 149:307 150:146 151:231 152:290
153:175 154:2 155:369 156:163 157:310 158:112
159:359 160:312 161:189 162:273 163:156 164:424
165:336 166:470 167:425 168:662 169:153 170:708
171:61 172:2 173:1046 174:499 175:241 176:1
177:1 178:540 180:671 181:1 182:229 183:236
184:132 186:740 187:549 188:851 189:809 190:4140
192:5710 193:4742 194:3434 195:2816 196:1193 198:3473
199:3597 200:5371 201:1581 202:7947 203:8186 204:3936
205:2305 206:2484 207:2951 208:3903 209:3445 210:2509
211:1266 212:1813 213:1720 214:661 215:66 216:4744
217:1564 218:476 219:397 220:1175 221:386 222:314
223:53
End of report