Routing Table Report 08:00 +10GMT Thu 16 Dec, 2010
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 333959
Prefixes after maximum aggregation: 151878
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 166400
Total ASes present in the Internet Routing Table: 35335
Prefixes per ASN: 9.45
Origin-only ASes present in the Internet Routing Table: 30556
Origin ASes announcing only one prefix: 14934
Transit ASes present in the Internet Routing Table: 4779
Transit-only ASes present in the Internet Routing Table: 105
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: 296
Unregistered ASNs in the Routing Table: 116
Number of 32-bit ASNs allocated by the RIRs: 951
Prefixes from 32-bit ASNs in the Routing Table: 1446
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 188
Number of addresses announced to Internet: 2474002944
Equivalent to 147 /8s, 118 /16s and 74 /24s
Percentage of available address space announced: 66.7
Percentage of allocated address space announced: 68.9
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 86.7
Total number of prefixes smaller than registry allocations: 136129
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 79961
Total APNIC prefixes after maximum aggregation: 27322
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 77683
Unique aggregates announced from the APNIC address blocks: 34923
APNIC Region origin ASes present in the Internet Routing Table: 4223
APNIC Prefixes per ASN: 18.40
APNIC Region origin ASes announcing only one prefix: 1216
APNIC Region transit ASes present in the Internet Routing Table: 646
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 574644992
Equivalent to 34 /8s, 64 /16s and 99 /24s
Percentage of available APNIC address space announced: 77.8
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: 134110
Total ARIN prefixes after maximum aggregation: 68513
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 106938
Unique aggregates announced from the ARIN address blocks: 43916
ARIN Region origin ASes present in the Internet Routing Table: 13990
ARIN Prefixes per ASN: 7.64
ARIN Region origin ASes announcing only one prefix: 5374
ARIN Region transit ASes present in the Internet Routing Table: 1404
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 743552000
Equivalent to 44 /8s, 81 /16s and 180 /24s
Percentage of available ARIN address space announced: 62.4
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, 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, 100/8,
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: 79647
Total RIPE prefixes after maximum aggregation: 45381
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 73125
Unique aggregates announced from the RIPE address blocks: 47112
RIPE Region origin ASes present in the Internet Routing Table: 15137
RIPE Prefixes per ASN: 4.83
RIPE Region origin ASes announcing only one prefix: 7766
RIPE Region transit ASes present in the Internet Routing Table: 2331
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 450978816
Equivalent to 26 /8s, 225 /16s and 100 /24s
Percentage of available RIPE address space announced: 74.7
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, 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, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 30510
Total LACNIC prefixes after maximum aggregation: 7040
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 29405
Unique aggregates announced from the LACNIC address blocks: 15435
LACNIC Region origin ASes present in the Internet Routing Table: 1392
LACNIC Prefixes per ASN: 21.12
LACNIC Region origin ASes announcing only one prefix: 442
LACNIC Region transit ASes present in the Internet Routing Table: 240
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 78531840
Equivalent to 4 /8s, 174 /16s and 77 /24s
Percentage of available LACNIC address space announced: 58.5
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: 7608
Total AfriNIC prefixes after maximum aggregation: 1910
AfriNIC Deaggregation factor: 3.98
Prefixes being announced from the AfriNIC address blocks: 5912
Unique aggregates announced from the AfriNIC address blocks: 1758
AfriNIC Region origin ASes present in the Internet Routing Table: 426
AfriNIC Prefixes per ASN: 13.88
AfriNIC Region origin ASes announcing only one prefix: 136
AfriNIC Region transit ASes present in the Internet Routing Table: 94
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 21576960
Equivalent to 1 /8s, 73 /16s and 61 /24s
Percentage of available AfriNIC address space announced: 42.9
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1725 9453 516 Korea Telecom (KIX)
7545 1537 298 75 TPG Internet Pty Ltd
4755 1400 650 134 TATA Communications formerly
17974 1336 459 27 PT TELEKOMUNIKASI INDONESIA
24560 1041 312 174 Bharti Airtel Ltd., Telemedia
9583 1033 74 490 Sify Limited
17488 954 157 111 Hathway IP Over Cable Interne
18101 906 116 136 Reliance Infocom Ltd Internet
4808 899 1625 254 CNCGROUP IP network: China169
9829 821 696 31 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 3734 3871 269 bellsouth.net, inc.
4323 2639 1093 399 Time Warner Telecom
19262 1833 4853 281 Verizon Global Networks
1785 1789 697 132 PaeTec Communications, Inc.
20115 1514 1531 640 Charter Communications
6478 1433 290 49 AT&T Worldnet Services
7018 1377 5687 889 AT&T WorldNet Services
2386 1316 572 934 AT&T Data Communications Serv
22773 1258 2863 73 Cox Communications, Inc.
11492 1247 233 75 Cable One
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 32 Goldenlines main autonomous s
6830 501 1763 309 UPC Distribution Services
3292 443 2010 386 TDC Tele Danmark
34984 440 96 133 BILISIM TELEKOM
8866 438 133 23 Bulgarian Telecommunication C
9121 435 1690 29 TTnet Autonomous System
9198 417 202 13 Kazakhtelecom Data Network Ad
702 404 1867 318 UUNET - Commercial IP service
8551 404 355 38 Bezeq International
12479 398 577 6 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 1343 250 154 TVCABLE BOGOTA
8151 1217 2597 363 UniNet S.A. de C.V.
28573 1209 933 79 NET Servicos de Comunicao S.A
6503 1165 355 81 AVANTEL, S.A.
7303 805 440 94 Telecom Argentina Stet-France
14420 584 49 88 ANDINATEL S.A.
22047 564 310 15 VTR PUNTO NET S.A.
3816 493 216 102 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 452 32 30 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 1064 445 10 TEDATA
24863 741 147 37 LINKdotNET AS number
36992 654 275 156 Etisalat MISR
3741 263 986 225 The Internet Solution
24835 217 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 199 19 11 Ci Telecom Autonomous system
2018 196 277 64 Tertiary Education Network
33776 184 12 14 Starcomms Nigeria Limited
16637 162 440 89 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 3734 3871 269 bellsouth.net, inc.
4323 2639 1093 399 Time Warner Telecom
19262 1833 4853 281 Verizon Global Networks
1785 1789 697 132 PaeTec Communications, Inc.
4766 1725 9453 516 Korea Telecom (KIX)
7545 1537 298 75 TPG Internet Pty Ltd
20115 1514 1531 640 Charter Communications
23456 1446 367 800 32-bit ASN transition
6478 1433 290 49 AT&T Worldnet Services
4755 1400 650 134 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 2639 2240 Time Warner Telecom
1785 1789 1657 PaeTec Communications, Inc.
19262 1833 1552 Verizon Global Networks
7545 1537 1462 TPG Internet Pty Ltd
6478 1433 1384 AT&T Worldnet Services
17974 1336 1309 PT TELEKOMUNIKASI INDONESIA
4755 1400 1266 TATA Communications formerly
4766 1725 1209 Korea Telecom (KIX)
10620 1343 1189 TVCABLE BOGOTA
22773 1258 1185 Cox Communications, Inc.
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 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
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/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
5.0.0.0/16 12654 RIPE NCC RIS Project
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Continental Cablevision
37.0.0.0/16 12654 RIPE NCC RIS Project
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
46.39.128.0/19 51504 Telset ltd
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 /8:28 /9:10 /10:25 /11:70 /12:213
/13:429 /14:751 /15:1342 /16:11365 /17:5498 /18:9172
/19:18697 /20:23965 /21:24140 /22:31690 /23:30669 /24:175449
/25:11 /26:17 /27:27 /28:155 /29:93 /30:40
/31:0 /32:103
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2305 3734 bellsouth.net, inc.
4323 1426 2639 Time Warner Telecom
6478 1390 1433 AT&T Worldnet Services
10620 1235 1343 TVCABLE BOGOTA
11492 1204 1247 Cable One
7011 1071 1174 Citizens Utilities
1785 1059 1789 PaeTec Communications, Inc.
18566 1047 1066 Covad Communications
8452 966 1064 TEDATA
19262 955 1833 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:132 2:18 4:13 5:1 8:316 12:2032
13:6 14:76 15:17 16:3 17:8 20:9
24:1424 27:482 32:59 33:5 34:2 36:1
37:1 38:714 40:101 41:2632 42:1 44:3
46:390 47:4 49:41 50:19 52:12 55:4
56:2 57:28 58:761 59:503 60:395 61:1002
62:1024 63:1928 64:3689 65:2317 66:4064 67:1752
68:991 69:2813 70:712 71:389 72:1947 73:1
74:2279 75:288 76:321 77:833 78:747 79:435
80:1055 81:798 82:516 83:438 84:631 85:1045
86:497 87:719 88:407 89:1591 90:146 91:3329
92:473 93:1023 94:1129 95:698 96:402 97:246
98:705 99:33 101:3 107:2 108:77 109:801
110:467 111:657 112:301 113:317 114:462 115:633
116:879 117:647 118:587 119:1048 120:196 121:706
122:1569 123:1022 124:1220 125:1171 128:180 129:147
130:164 131:559 132:227 133:20 134:198 135:50
136:210 137:145 138:288 139:108 140:458 141:196
142:334 143:516 144:480 145:54 146:417 147:182
148:617 149:324 150:150 151:230 152:294 153:172
154:2 155:369 156:163 157:310 158:126 159:364
160:314 161:187 162:274 163:154 164:434 165:333
166:470 167:417 168:704 169:148 170:721 171:67
172:2 173:1134 174:474 175:259 176:1 178:649
180:719 182:448 183:243 184:189 186:828 187:766
188:884 189:1011 190:4255 192:5726 193:4764 194:3465
195:2881 196:1188 197:1 198:3468 199:3638 200:5501
201:1583 202:8039 203:8286 204:3986 205:2307 206:2426
207:2883 208:3849 209:3452 210:2508 211:1311 212:1898
213:1700 214:740 215:62 216:4765 217:1623 218:498
219:399 220:1178 221:399 222:313 223:80
End of report
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