Routing Table Report 08:00 +10GMT Wed 02 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 336530
Prefixes after maximum aggregation: 154184
Deaggregation factor: 2.18
Unique aggregates announced to Internet: 169496
Total ASes present in the Internet Routing Table: 35555
Prefixes per ASN: 9.47
Origin-only ASes present in the Internet Routing Table: 30768
Origin ASes announcing only one prefix: 14936
Transit ASes present in the Internet Routing Table: 4787
Transit-only ASes present in the Internet Routing Table: 107
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (22394) 20
Prefixes from unregistered ASNs in the Routing Table: 537
Unregistered ASNs in the Routing Table: 138
Number of 32-bit ASNs allocated by the RIRs: 1063
Prefixes from 32-bit ASNs in the Routing Table: 1636
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 205
Number of addresses announced to Internet: 2451007488
Equivalent to 146 /8s, 23 /16s and 104 /24s
Percentage of available address space announced: 66.1
Percentage of allocated address space announced: 68.3
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 88.0
Total number of prefixes smaller than registry allocations: 136635
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 81639
Total APNIC prefixes after maximum aggregation: 27823
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 79259
Unique aggregates announced from the APNIC address blocks: 35579
APNIC Region origin ASes present in the Internet Routing Table: 4262
APNIC Prefixes per ASN: 18.60
APNIC Region origin ASes announcing only one prefix: 1221
APNIC Region transit ASes present in the Internet Routing Table: 656
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 586533376
Equivalent to 34 /8s, 245 /16s and 202 /24s
Percentage of available APNIC address space announced: 79.5
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, 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: 135310
Total ARIN prefixes after maximum aggregation: 69460
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 108212
Unique aggregates announced from the ARIN address blocks: 44509
ARIN Region origin ASes present in the Internet Routing Table: 14076
ARIN Prefixes per ASN: 7.69
ARIN Region origin ASes announcing only one prefix: 5389
ARIN Region transit ASes present in the Internet Routing Table: 1386
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 751686400
Equivalent to 44 /8s, 205 /16s and 211 /24s
Percentage of available ARIN address space announced: 63.1
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: 81639
Total RIPE prefixes after maximum aggregation: 46187
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 74944
Unique aggregates announced from the RIPE address blocks: 48523
RIPE Region origin ASes present in the Internet Routing Table: 15249
RIPE Prefixes per ASN: 4.91
RIPE Region origin ASes announcing only one prefix: 7768
RIPE Region transit ASes present in the Internet Routing Table: 2354
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 457152000
Equivalent to 27 /8s, 63 /16s and 150 /24s
Percentage of available RIPE address space announced: 75.7
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, 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, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 31027
Total LACNIC prefixes after maximum aggregation: 7146
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 29953
Unique aggregates announced from the LACNIC address blocks: 15806
LACNIC Region origin ASes present in the Internet Routing Table: 1409
LACNIC Prefixes per ASN: 21.26
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 237
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 80251392
Equivalent to 4 /8s, 200 /16s and 138 /24s
Percentage of available LACNIC address space announced: 59.8
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: 4594
Total AfriNIC prefixes after maximum aggregation: 1645
AfriNIC Deaggregation factor: 2.79
Prefixes being announced from the AfriNIC address blocks: 3408
Unique aggregates announced from the AfriNIC address blocks: 1580
AfriNIC Region origin ASes present in the Internet Routing Table: 391
AfriNIC Prefixes per ASN: 8.72
AfriNIC Region origin ASes announcing only one prefix: 121
AfriNIC Region transit ASes present in the Internet Routing Table: 89
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 18173952
Equivalent to 1 /8s, 21 /16s and 80 /24s
Percentage of available AfriNIC address space announced: 36.1
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 1759 9484 515 Korea Telecom (KIX)
7545 1596 300 82 TPG Internet Pty Ltd
4755 1410 636 162 TATA Communications formerly
17974 1389 459 28 PT TELEKOMUNIKASI INDONESIA
24560 1095 317 180 Bharti Airtel Ltd., Telemedia
9583 1043 76 490 Sify Limited
17488 950 162 103 Hathway IP Over Cable Interne
4808 935 2030 270 CNCGROUP IP network: China169
18101 923 116 140 Reliance Infocom Ltd Internet
9829 896 762 41 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 3710 3855 266 bellsouth.net, inc.
4323 2629 1125 404 Time Warner Telecom
19262 1841 4943 285 Verizon Global Networks
1785 1790 697 132 PaeTec Communications, Inc.
20115 1522 1532 642 Charter Communications
6478 1472 290 112 AT&T Worldnet Services
7018 1369 6708 890 AT&T WorldNet Services
2386 1296 554 934 AT&T Data Communications Serv
22773 1277 2865 78 Cox Communications, Inc.
11492 1262 235 79 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
6830 513 1764 318 UPC Distribution Services
9116 482 328 31 Goldenlines main autonomous s
9198 465 266 14 Kazakhtelecom Data Network Ad
34984 457 97 137 BILISIM TELEKOM
3292 447 2011 390 TDC Tele Danmark
8866 439 133 23 Bulgarian Telecommunication C
12479 414 577 6 Uni2 Autonomous System
8551 405 355 38 Bezeq International
702 401 1819 314 UUNET - Commercial IP service
3320 401 7616 350 Deutsche Telekom AG
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 1358 252 163 TVCABLE BOGOTA
28573 1226 961 82 NET Servicos de Comunicao S.A
8151 1201 2613 356 UniNet S.A. de C.V.
6503 1140 355 79 AVANTEL, S.A.
7303 863 460 103 Telecom Argentina Stet-France
14420 622 56 91 ANDINATEL S.A.
22047 566 310 15 VTR PUNTO NET S.A.
3816 500 220 95 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 456 34 31 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
3741 264 987 226 The Internet Solution
6713 203 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 193 17 11 Ci Telecom Autonomous system
16637 154 439 86 MTN Network Solutions
36874 139 24 6 Cybersmart
29975 131 490 17 Vodacom
37061 108 9 2 One Communications Ltd
15706 106 16 5 Sudatel Internet Exchange Aut
37054 85 5 21 Data Telecom Service
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 3710 3855 266 bellsouth.net, inc.
4323 2629 1125 404 Time Warner Telecom
19262 1841 4943 285 Verizon Global Networks
1785 1790 697 132 PaeTec Communications, Inc.
4766 1759 9484 515 Korea Telecom (KIX)
23456 1636 405 906 32-bit ASN transition
7545 1596 300 82 TPG Internet Pty Ltd
20115 1522 1532 642 Charter Communications
6478 1472 290 112 AT&T Worldnet Services
4755 1410 636 162 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 2629 2225 Time Warner Telecom
1785 1790 1658 PaeTec Communications, Inc.
19262 1841 1556 Verizon Global Networks
7545 1596 1514 TPG Internet Pty Ltd
17974 1389 1361 PT TELEKOMUNIKASI INDONESIA
6478 1472 1360 AT&T Worldnet Services
4755 1410 1248 TATA Communications formerly
4766 1759 1244 Korea Telecom (KIX)
22773 1277 1199 Cox Communications, Inc.
10620 1358 1195 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 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
41.78.192.0/22 30999 Emtel is GSM, 3G and ISP in M
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
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 /8:25 /9:10 /10:26 /11:71 /12:215
/13:439 /14:765 /15:1360 /16:11421 /17:5577 /18:9227
/19:18832 /20:24227 /21:24440 /22:32276 /23:30769 /24:176395
/25:11 /26:17 /27:24 /28:154 /29:93 /30:43
/31:0 /32:113
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2288 3710 bellsouth.net, inc.
6478 1426 1472 AT&T Worldnet Services
4323 1416 2629 Time Warner Telecom
10620 1249 1358 TVCABLE BOGOTA
11492 1218 1262 Cable One
18566 1103 1122 Covad Communications
7011 1065 1168 Citizens Utilities
1785 1058 1790 PaeTec Communications, Inc.
23456 969 1636 32-bit ASN transition
19262 954 1841 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:167 2:32 4:13 5:1 8:331 12:2026
13:1 14:363 15:15 16:3 17:8 20:9
23:1 24:1462 27:567 32:57 33:5 34:2
37:1 38:690 40:101 41:1634 44:3 46:539
47:5 49:140 50:81 52:12 55:5 56:2
57:26 58:784 59:481 60:389 61:1018 62:854
63:1910 64:3718 65:2332 66:4062 67:1754 68:1004
69:2875 70:717 71:394 72:1991 73:1 74:2313
75:293 76:330 77:845 78:696 79:441 80:1021
81:757 82:515 83:477 84:459 85:1052 86:526
87:739 88:357 89:1577 90:159 91:3452 92:496
93:1042 94:1186 95:785 96:408 97:249 98:756
99:33 101:23 107:3 108:81 109:867 110:470
111:687 112:303 113:339 114:473 115:629 116:901
117:670 118:653 119:1018 120:239 121:681 122:1606
123:1051 124:1250 125:1212 128:193 129:146 130:166
131:564 132:103 133:20 134:210 135:49 136:213
137:144 138:293 139:118 140:466 141:198 142:348
143:377 144:480 145:51 146:418 147:192 148:609
149:273 150:150 151:231 152:301 153:177 154:2
155:347 156:168 157:312 158:128 159:370 160:313
161:195 162:277 163:108 164:485 165:336 166:480
167:422 168:725 169:149 170:742 171:66 172:1
173:1263 174:519 175:308 176:1 177:4 178:776
180:766 182:326 183:248 184:208 186:976 187:788
188:911 189:1026 190:4414 192:5732 193:4779 194:3466
195:2906 196:1013 197:3 198:3498 199:3712 200:5527
201:1577 202:8029 203:8334 204:4024 205:2326 206:2491
207:2978 208:3858 209:3468 210:2593 211:1323 212:1882
213:1598 214:749 215:62 216:4781 217:1415 218:514
219:369 220:1193 221:433 222:316 223:90
End of report
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