Routing Table Report 08:00 +10GMT Fri 17 Dec, 2010
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 333930
Prefixes after maximum aggregation: 151971
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 166496
Total ASes present in the Internet Routing Table: 35326
Prefixes per ASN: 9.45
Origin-only ASes present in the Internet Routing Table: 30554
Origin ASes announcing only one prefix: 14924
Transit ASes present in the Internet Routing Table: 4772
Transit-only ASes present in the Internet Routing Table: 106
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: 302
Unregistered ASNs in the Routing Table: 117
Number of 32-bit ASNs allocated by the RIRs: 957
Prefixes from 32-bit ASNs in the Routing Table: 1429
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 187
Number of addresses announced to Internet: 2473374976
Equivalent to 147 /8s, 108 /16s and 181 /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: 136151
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 79875
Total APNIC prefixes after maximum aggregation: 27301
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 77590
Unique aggregates announced from the APNIC address blocks: 34915
APNIC Region origin ASes present in the Internet Routing Table: 4221
APNIC Prefixes per ASN: 18.38
APNIC Region origin ASes announcing only one prefix: 1216
APNIC Region transit ASes present in the Internet Routing Table: 647
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 575240960
Equivalent to 34 /8s, 73 /16s and 123 /24s
Percentage of available APNIC address space announced: 77.9
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: 134132
Total ARIN prefixes after maximum aggregation: 68574
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 106975
Unique aggregates announced from the ARIN address blocks: 43943
ARIN Region origin ASes present in the Internet Routing Table: 13995
ARIN Prefixes per ASN: 7.64
ARIN Region origin ASes announcing only one prefix: 5376
ARIN Region transit ASes present in the Internet Routing Table: 1401
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 742190848
Equivalent to 44 /8s, 60 /16s and 239 /24s
Percentage of available ARIN address space announced: 62.3
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: 79663
Total RIPE prefixes after maximum aggregation: 45410
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 73141
Unique aggregates announced from the RIPE address blocks: 47155
RIPE Region origin ASes present in the Internet Routing Table: 15120
RIPE Prefixes per ASN: 4.84
RIPE Region origin ASes announcing only one prefix: 7755
RIPE Region transit ASes present in the Internet Routing Table: 2327
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 450964224
Equivalent to 26 /8s, 225 /16s and 43 /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: 30526
Total LACNIC prefixes after maximum aggregation: 7047
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 29400
Unique aggregates announced from the LACNIC address blocks: 15458
LACNIC Region origin ASes present in the Internet Routing Table: 1396
LACNIC Prefixes per ASN: 21.06
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 241
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 78608384
Equivalent to 4 /8s, 175 /16s and 120 /24s
Percentage of available LACNIC address space announced: 58.6
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: 7629
Total AfriNIC prefixes after maximum aggregation: 1919
AfriNIC Deaggregation factor: 3.98
Prefixes being announced from the AfriNIC address blocks: 5932
Unique aggregates announced from the AfriNIC address blocks: 1760
AfriNIC Region origin ASes present in the Internet Routing Table: 426
AfriNIC Prefixes per ASN: 13.92
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: 21615104
Equivalent to 1 /8s, 73 /16s and 210 /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 1709 9452 513 Korea Telecom (KIX)
7545 1534 298 72 TPG Internet Pty Ltd
4755 1403 650 135 TATA Communications formerly
17974 1330 459 27 PT TELEKOMUNIKASI INDONESIA
24560 1041 312 174 Bharti Airtel Ltd., Telemedia
9583 1036 75 493 Sify Limited
17488 954 157 111 Hathway IP Over Cable Interne
18101 906 116 136 Reliance Infocom Ltd Internet
4808 901 1625 251 CNCGROUP IP network: China169
9829 822 696 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 3733 3871 269 bellsouth.net, inc.
4323 2641 1093 400 Time Warner Telecom
19262 1834 4857 282 Verizon Global Networks
1785 1790 697 132 PaeTec Communications, Inc.
20115 1514 1531 640 Charter Communications
6478 1435 290 51 AT&T Worldnet Services
7018 1379 5687 890 AT&T WorldNet Services
2386 1312 570 932 AT&T Data Communications Serv
22773 1255 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 539 328 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
8551 404 355 38 Bezeq International
702 403 1867 317 UUNET - Commercial IP service
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 1218 2599 363 UniNet S.A. de C.V.
28573 1204 933 79 NET Servicos de Comunicao S.A
6503 1166 355 81 AVANTEL, S.A.
7303 808 440 96 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 1075 445 10 TEDATA
24863 743 147 37 LINKdotNET AS number
36992 658 276 158 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 3733 3871 269 bellsouth.net, inc.
4323 2641 1093 400 Time Warner Telecom
19262 1834 4857 282 Verizon Global Networks
1785 1790 697 132 PaeTec Communications, Inc.
4766 1709 9452 513 Korea Telecom (KIX)
7545 1534 298 72 TPG Internet Pty Ltd
20115 1514 1531 640 Charter Communications
6478 1435 290 51 AT&T Worldnet Services
23456 1429 370 804 32-bit ASN transition
4755 1403 650 135 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 2641 2241 Time Warner Telecom
1785 1790 1658 PaeTec Communications, Inc.
19262 1834 1552 Verizon Global Networks
7545 1534 1462 TPG Internet Pty Ltd
6478 1435 1384 AT&T Worldnet Services
17974 1330 1303 PT TELEKOMUNIKASI INDONESIA
4755 1403 1268 TATA Communications formerly
4766 1709 1196 Korea Telecom (KIX)
10620 1343 1189 TVCABLE BOGOTA
22773 1255 1182 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<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
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 /14:752 /15:1344 /16:11347 /17:5502 /18:9182
/19:18697 /20:23944 /21:24134 /22:31702 /23:30668 /24:175438
/25:11 /26:17 /27:27 /28:155 /29:93 /30:41
/31:0 /32:101
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2304 3733 bellsouth.net, inc.
4323 1428 2641 Time Warner Telecom
6478 1392 1435 AT&T Worldnet Services
10620 1235 1343 TVCABLE BOGOTA
11492 1204 1247 Cable One
7011 1070 1173 Citizens Utilities
1785 1060 1790 PaeTec Communications, Inc.
18566 1047 1066 Covad Communications
8452 971 1075 TEDATA
19262 955 1834 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:133 2:10 4:13 5:1 8:317 12:2032
13:6 14:76 15:17 16:3 17:8 20:9
24:1428 27:485 32:59 33:5 34:2 36:1
37:1 38:711 40:102 41:2642 42:1 44:3
46:386 47:4 49:73 50:27 52:12 55:4
56:2 57:28 58:761 59:503 60:393 61:1002
62:1023 63:1931 64:3689 65:2317 66:4068 67:1755
68:991 69:2810 70:713 71:389 72:1942 73:1
74:2279 75:288 76:321 77:852 78:745 79:435
80:1057 81:787 82:516 83:448 84:629 85:1052
86:513 87:721 88:406 89:1588 90:147 91:3335
92:474 93:1011 94:1122 95:696 96:404 97:247
98:703 99:33 101:3 107:2 108:77 109:803
110:471 111:657 112:302 113:320 114:459 115:633
116:878 117:637 118:584 119:1028 120:196 121:690
122:1569 123:1022 124:1219 125:1171 128:178 129:147
130:163 131:557 132:227 133:20 134:198 135:50
136:210 137:145 138:290 139:107 140:458 141:197
142:334 143:516 144:480 145:52 146:417 147:180
148:609 149:326 150:150 151:230 152:294 153:172
154:2 155:372 156:163 157:310 158:126 159:368
160:314 161:186 162:275 163:153 164:434 165:332
166:470 167:417 168:704 169:148 170:720 171:67
172:2 173:1140 174:472 175:262 176:1 177:2
178:656 180:715 182:448 183:239 184:189 186:827
187:754 188:889 189:1040 190:4217 192:5728 193:4777
194:3463 195:2868 196:1190 197:1 198:3470 199:3647
200:5509 201:1583 202:8020 203:8270 204:3967 205:2308
206:2428 207:2890 208:3848 209:3453 210:2515 211:1311
212:1900 213:1703 214:741 215:62 216:4770 217:1621
218:499 219:388 220:1177 221:398 222:313 223:80
End of report
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