Routing Table Report 08:00 +10GMT Thu 02 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 353574
Prefixes after maximum aggregation: 160255
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 176913
Total ASes present in the Internet Routing Table: 36462
Prefixes per ASN: 9.70
Origin-only ASes present in the Internet Routing Table: 31506
Origin ASes announcing only one prefix: 15160
Transit ASes present in the Internet Routing Table: 4956
Transit-only ASes present in the Internet Routing Table: 117
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 27
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2120
Unregistered ASNs in the Routing Table: 477
Number of 32-bit ASNs allocated by the RIRs: 1413
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2571
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 167
Number of addresses announced to Internet: 2468266752
Equivalent to 147 /8s, 30 /16s and 195 /24s
Percentage of available address space announced: 66.6
Percentage of allocated address space announced: 66.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 145927
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 84974
Total APNIC prefixes after maximum aggregation: 28733
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 82281
Unique aggregates announced from the APNIC address blocks: 36031
APNIC Region origin ASes present in the Internet Routing Table: 4415
APNIC Prefixes per ASN: 18.64
APNIC Region origin ASes announcing only one prefix: 1261
APNIC Region transit ASes present in the Internet Routing Table: 666
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 628509696
Equivalent to 37 /8s, 118 /16s and 76 /24s
Percentage of available APNIC address space announced: 79.7
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: 139222
Total ARIN prefixes after maximum aggregation: 70800
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 111789
Unique aggregates announced from the ARIN address blocks: 45869
ARIN Region origin ASes present in the Internet Routing Table: 14325
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5480
ARIN Region transit ASes present in the Internet Routing Table: 1435
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 801931008
Equivalent to 47 /8s, 204 /16s and 127 /24s
Percentage of available ARIN address space announced: 63.7
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: 85442
Total RIPE prefixes after maximum aggregation: 48469
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 78845
Unique aggregates announced from the RIPE address blocks: 51971
RIPE Region origin ASes present in the Internet Routing Table: 15651
RIPE Prefixes per ASN: 5.04
RIPE Region origin ASes announcing only one prefix: 7841
RIPE Region transit ASes present in the Internet Routing Table: 2439
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 474932736
Equivalent to 28 /8s, 78 /16s and 230 /24s
Percentage of available RIPE address space announced: 76.5
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: 32384
Total LACNIC prefixes after maximum aggregation: 7415
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 31819
Unique aggregates announced from the LACNIC address blocks: 16935
LACNIC Region origin ASes present in the Internet Routing Table: 1447
LACNIC Prefixes per ASN: 21.99
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 253
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 84453120
Equivalent to 5 /8s, 8 /16s and 167 /24s
Percentage of available LACNIC address space announced: 55.9
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: 8270
Total AfriNIC prefixes after maximum aggregation: 1963
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6382
Unique aggregates announced from the AfriNIC address blocks: 1922
AfriNIC Region origin ASes present in the Internet Routing Table: 457
AfriNIC Prefixes per ASN: 13.96
AfriNIC Region origin ASes announcing only one prefix: 143
AfriNIC Region transit ASes present in the Internet Routing Table: 102
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 23550464
Equivalent to 1 /8s, 103 /16s and 90 /24s
Percentage of available AfriNIC address space announced: 35.1
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 1901 9492 618 Korea Telecom (KIX)
17974 1541 441 38 PT Telekomunikasi Indonesia
7545 1536 301 86 TPG Internet Pty Ltd
4755 1471 635 167 TATA Communications formerly
24560 1155 337 187 Bharti Airtel Ltd., Telemedia
7552 1137 1064 7 Vietel Corporation
9583 1079 80 510 Sify Limited
9829 1041 877 53 National Internet Backbone
4808 955 2014 277 CNCGROUP IP network China169
18101 934 116 141 Reliance Infocom Ltd Internet
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 3643 3822 257 BellSouth.net Inc.
4323 1971 1097 400 tw telecom holdings, inc.
18566 1874 355 268 Covad Communications Co.
1785 1792 681 123 PaeTec Communications, Inc.
6478 1711 317 47 AT&T Services, Inc.
20115 1535 1540 633 Charter Communications
19262 1492 4936 307 Verizon Online LLC
7018 1376 7086 900 AT&T Services, Inc.
22773 1337 2897 88 Cox Communications Inc.
11492 1278 240 15 CABLE ONE, 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 539 326 30 Goldenlines main autonomous s
34984 517 106 179 BILISIM TELEKOM
6830 516 1780 320 UPC Broadband
3292 461 2078 396 TDC Data Networks
20940 457 134 349 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 431 593 7 France Telecom Espana SA
3320 424 8152 369 Deutsche Telekom AG
8551 407 356 39 Bezeq International
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 1512 278 157 Types of queries are: POCs, o
28573 1304 992 86 Types of queries are: POCs, o
8151 1240 2691 360 Uninet S.A. de C.V.
7303 935 503 140 Telecom Argentina S.A.
6503 725 354 74 Axtel, S.A.B. de C.V.
14420 673 54 90 CORPORACION NACIONAL DE TELEC
22047 565 310 15 Types of queries are: POCs, o
3816 525 229 96 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
13489 514 262 123 EPM Telecomunicaciones S.A. E
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 819 445 11 TEDATA
24863 789 147 35 LINKdotNET AS number
15475 543 90 8 Nile Online
36992 311 399 15 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 217 12 11 Starcomms Nigeria Limited
24835 208 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
11380 181 125 57 INTERNETOFFICEPARKS
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 3643 3822 257 BellSouth.net Inc.
23456 2571 639 1390 32-bit ASN transition
4323 1971 1097 400 tw telecom holdings, inc.
4766 1901 9492 618 Korea Telecom (KIX)
18566 1874 355 268 Covad Communications Co.
1785 1792 681 123 PaeTec Communications, Inc.
6478 1711 317 47 AT&T Services, Inc.
17974 1541 441 38 PT Telekomunikasi Indonesia
7545 1536 301 86 TPG Internet Pty Ltd
20115 1535 1540 633 Charter Communications
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
1785 1792 1669 PaeTec Communications, Inc.
6478 1711 1664 AT&T Services, Inc.
18566 1874 1606 Covad Communications Co.
4323 1971 1571 tw telecom holdings, inc.
17974 1541 1503 PT Telekomunikasi Indonesia
7545 1536 1450 TPG Internet Pty Ltd
10620 1512 1355 Types of queries are: POCs, o
4755 1471 1304 TATA Communications formerly
4766 1901 1283 Korea Telecom (KIX)
11492 1278 1263 CABLE ONE, 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 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T Services, Inc.
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 65535 Internet Assigned Numbers Aut
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
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
27.0.128.0/17 7514 Media EXchange, Inc.
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
41.190.36.0/23 31856 CABSAS
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 /8:23 /9:12 /10:28 /11:81 /12:228
/13:461 /14:795 /15:1393 /16:11741 /17:5821 /18:9690
/19:19405 /20:25738 /21:25884 /22:33964 /23:32816 /24:185002
/25:13 /26:17 /27:25 /28:161 /29:98 /30:53
/31:0 /32:125
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2243 3643 BellSouth.net Inc.
18566 1837 1874 Covad Communications Co.
6478 1665 1711 AT&T Services, Inc.
10620 1402 1512 Types of queries are: POCs, o
23456 1256 2571 32-bit ASN transition
11492 1224 1278 CABLE ONE, INC.
7011 1061 1160 Frontier Communications of Am
1785 1051 1792 PaeTec Communications, Inc.
4323 883 1971 tw telecom holdings, inc.
22773 852 1337 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:278 2:47 4:16 5:1 6:3 8:337
12:1976 13:1 14:455 15:15 16:3 17:8
20:10 23:6 24:1648 27:772 31:361 32:55
33:4 34:2 37:1 38:736 40:102 41:2535
42:6 44:3 46:926 47:3 49:198 50:427
52:13 54:2 55:7 56:2 57:28 58:790
59:475 60:385 61:1056 62:1044 63:1933 64:3916
65:2289 66:4136 67:1867 68:1084 69:2990 70:704
71:351 72:1893 73:1 74:2350 75:304 76:340
77:868 78:701 79:468 80:1090 81:840 82:500
83:443 84:677 85:1071 86:591 87:761 88:332
89:1534 90:203 91:3799 92:519 93:1050 94:1283
95:808 96:502 97:250 98:858 99:35 101:53
103:36 106:1 107:7 108:85 109:948 110:599
111:699 112:296 113:394 114:533 115:671 116:937
117:688 118:782 119:1127 120:310 121:649 122:1622
123:970 124:1260 125:1211 128:210 129:167 130:158
131:569 132:101 133:19 134:205 135:48 136:210
137:140 138:300 139:108 140:459 141:239 142:388
143:396 144:480 145:54 146:442 147:210 148:578
149:241 150:162 151:186 152:326 153:178 154:2
155:396 156:191 157:323 158:138 159:374 160:316
161:199 162:281 163:154 164:500 165:353 166:519
167:428 168:724 169:153 170:800 171:77 172:1
173:1557 174:551 175:358 176:130 177:147 178:992
180:848 181:17 182:444 183:212 184:293 185:1
186:1212 187:777 188:848 189:909 190:4800 192:5791
193:4898 194:3490 195:2996 196:1230 197:19 198:3516
199:3882 200:5505 201:1478 202:8052 203:8275 204:4094
205:2296 206:2598 207:2805 208:3950 209:3445 210:2644
211:1386 212:2000 213:1736 214:726 215:72 216:4904
217:1638 218:533 219:362 220:1196 221:475 222:308
223:147
End of report
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