Routing Table Report 08:00 +10GMT Thu 09 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 354225
Prefixes after maximum aggregation: 160836
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 178123
Total ASes present in the Internet Routing Table: 36528
Prefixes per ASN: 9.70
Origin-only ASes present in the Internet Routing Table: 31549
Origin ASes announcing only one prefix: 15182
Transit ASes present in the Internet Routing Table: 4979
Transit-only ASes present in the Internet Routing Table: 120
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 29
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2164
Unregistered ASNs in the Routing Table: 499
Number of 32-bit ASNs allocated by the RIRs: 1436
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2634
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 166
Number of addresses announced to Internet: 2486394368
Equivalent to 148 /8s, 51 /16s and 94 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
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: 146229
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 84986
Total APNIC prefixes after maximum aggregation: 28762
APNIC Deaggregation factor: 2.95
Prefixes being announced from the APNIC address blocks: 82296
Unique aggregates announced from the APNIC address blocks: 36733
APNIC Region origin ASes present in the Internet Routing Table: 4421
APNIC Prefixes per ASN: 18.61
APNIC Region origin ASes announcing only one prefix: 1263
APNIC Region transit ASes present in the Internet Routing Table: 666
Average APNIC Region AS path length visible: 4.0
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: 618196736
Equivalent to 36 /8s, 216 /16s and 239 /24s
Percentage of available APNIC address space announced: 78.4
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: 139443
Total ARIN prefixes after maximum aggregation: 71152
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 111726
Unique aggregates announced from the ARIN address blocks: 46057
ARIN Region origin ASes present in the Internet Routing Table: 14351
ARIN Prefixes per ASN: 7.79
ARIN Region origin ASes announcing only one prefix: 5494
ARIN Region transit ASes present in the Internet Routing Table: 1445
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: 802036736
Equivalent to 47 /8s, 206 /16s and 28 /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: 85813
Total RIPE prefixes after maximum aggregation: 48605
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 79241
Unique aggregates announced from the RIPE address blocks: 52098
RIPE Region origin ASes present in the Internet Routing Table: 15678
RIPE Prefixes per ASN: 5.05
RIPE Region origin ASes announcing only one prefix: 7844
RIPE Region transit ASes present in the Internet Routing Table: 2442
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: 476393472
Equivalent to 28 /8s, 101 /16s and 48 /24s
Percentage of available RIPE address space announced: 76.7
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, 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: 32413
Total LACNIC prefixes after maximum aggregation: 7394
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 31874
Unique aggregates announced from the LACNIC address blocks: 16953
LACNIC Region origin ASes present in the Internet Routing Table: 1449
LACNIC Prefixes per ASN: 22.00
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 250
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 84785920
Equivalent to 5 /8s, 13 /16s and 187 /24s
Percentage of available LACNIC address space announced: 56.2
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: 8207
Total AfriNIC prefixes after maximum aggregation: 1970
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6343
Unique aggregates announced from the AfriNIC address blocks: 1916
AfriNIC Region origin ASes present in the Internet Routing Table: 458
AfriNIC Prefixes per ASN: 13.85
AfriNIC Region origin ASes announcing only one prefix: 142
AfriNIC Region transit ASes present in the Internet Routing Table: 105
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: 24139008
Equivalent to 1 /8s, 112 /16s and 85 /24s
Percentage of available AfriNIC address space announced: 36.0
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 1547 441 38 PT Telekomunikasi Indonesia
7545 1536 301 85 TPG Internet Pty Ltd
4755 1471 374 165 TATA Communications formerly
24560 1155 337 186 Bharti Airtel Ltd., Telemedia
7552 1124 1064 7 Vietel Corporation
9583 1081 80 509 Sify Limited
9829 1038 876 65 National Internet Backbone
4808 960 2017 278 CNCGROUP IP network China169
17488 934 173 105 Hathway IP Over Cable Interne
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 3636 3822 256 BellSouth.net Inc.
4323 1965 1097 402 tw telecom holdings, inc.
18566 1874 355 268 Covad Communications Co.
1785 1794 681 122 PaeTec Communications, Inc.
6478 1719 318 43 AT&T Services, Inc.
20115 1539 1541 633 Charter Communications
19262 1493 4936 308 Verizon Online LLC
7018 1379 7102 904 AT&T Services, Inc.
22773 1338 2897 88 Cox Communications Inc.
2386 1271 537 913 AT&T Data Communications Serv
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 520 106 180 BILISIM TELEKOM
6830 513 1780 321 UPC Broadband
3292 464 2078 399 TDC Data Networks
20940 462 135 354 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 435 593 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 1307 992 85 Types of queries are: POCs, o
8151 1247 2711 357 Uninet S.A. de C.V.
7303 934 504 140 Telecom Argentina S.A.
6503 731 354 74 Axtel, S.A.B. de C.V.
14420 677 54 80 CORPORACION NACIONAL DE TELEC
22047 564 310 15 Types of queries are: POCs, o
3816 529 231 93 Types of queries are: POCs, o
13489 517 262 122 EPM Telecomunicaciones S.A. E
7738 516 986 31 Telecomunicacoes da Bahia 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 796 445 11 TEDATA
24863 792 147 35 LINKdotNET AS number
15475 528 74 8 Nile Online
36992 308 415 17 Etisalat MISR
3741 264 937 225 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
24835 210 78 10 RAYA Telecom - Egypt
33776 205 11 11 Starcomms Nigeria Limited
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 3636 3822 256 BellSouth.net Inc.
23456 2634 648 1429 32-bit ASN transition
4323 1965 1097 402 tw telecom holdings, inc.
4766 1901 9492 618 Korea Telecom (KIX)
18566 1874 355 268 Covad Communications Co.
1785 1794 681 122 PaeTec Communications, Inc.
6478 1719 318 43 AT&T Services, Inc.
17974 1547 441 38 PT Telekomunikasi Indonesia
20115 1539 1541 633 Charter Communications
7545 1536 301 85 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6478 1719 1676 AT&T Services, Inc.
1785 1794 1672 PaeTec Communications, Inc.
18566 1874 1606 Covad Communications Co.
4323 1965 1563 tw telecom holdings, inc.
17974 1547 1509 PT Telekomunikasi Indonesia
7545 1536 1451 TPG Internet Pty Ltd
10620 1512 1355 Types of queries are: POCs, o
4755 1471 1306 TATA Communications formerly
4766 1901 1283 Korea Telecom (KIX)
22773 1338 1250 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 *
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.
31.131.160.0/21 56897 >>UNKNOWN<<
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 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 /8:22 /9:12 /10:28 /11:80 /12:230
/13:463 /14:798 /15:1394 /16:11895 /17:5822 /18:9711
/19:19442 /20:25794 /21:25958 /22:34056 /23:32896 /24:185116
/25:13 /26:17 /27:24 /28:162 /29:104 /30:55
/31:0 /32:133
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2238 3636 BellSouth.net Inc.
18566 1837 1874 Covad Communications Co.
6478 1673 1719 AT&T Services, Inc.
10620 1402 1512 Types of queries are: POCs, o
23456 1305 2634 32-bit ASN transition
11492 1104 1150 CABLE ONE, INC.
7011 1057 1156 Frontier Communications of Am
1785 1050 1794 PaeTec Communications, Inc.
7029 913 1231 Alltel Information Services,
4323 877 1965 tw telecom holdings, inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:279 2:47 4:16 5:1 6:3 8:338
12:1977 13:1 14:450 15:15 16:3 17:8
20:10 23:11 24:1608 27:772 31:426 32:55
33:4 34:2 37:1 38:734 40:102 41:2505
42:6 44:3 46:953 47:3 49:198 50:402
52:13 54:2 55:3 56:2 57:28 58:797
59:470 60:385 61:1016 62:1053 63:1931 64:3907
65:2242 66:4125 67:1867 68:1082 69:2992 70:703
71:369 72:1844 74:2349 75:308 76:338 77:873
78:705 79:469 80:1088 81:836 82:497 83:475
84:675 85:1079 86:580 87:759 88:332 89:1528
90:204 91:3798 92:526 93:1038 94:1289 95:822
96:438 97:251 98:869 99:35 101:58 103:54
106:1 107:11 108:83 109:962 110:600 111:703
112:293 113:394 114:536 115:677 116:937 117:683
118:787 119:1126 120:310 121:646 122:1620 123:936
124:1265 125:1214 128:209 129:169 130:158 131:573
132:103 133:19 134:203 135:48 136:212 137:141
138:300 139:109 140:460 141:239 142:388 143:414
144:494 145:54 146:438 147:213 148:587 149:246
150:165 151:187 152:328 153:180 154:2 155:397
156:195 157:323 158:138 159:373 160:311 161:199
162:306 163:154 164:499 165:348 166:527 167:424
168:726 169:153 170:796 171:77 172:1 173:1597
174:584 175:357 176:133 177:147 178:991 180:848
181:18 182:449 183:213 184:293 185:1 186:1205
187:793 188:845 189:901 190:4868 192:5792 193:4916
194:3494 195:2995 196:1232 197:19 198:3528 199:3886
200:5447 201:1476 202:8081 203:8245 204:4112 205:2313
206:2602 207:2771 208:3940 209:3444 210:2651 211:1390
212:2023 213:1729 214:740 215:72 216:4911 217:1633
218:533 219:358 220:1197 221:475 222:309 223:152
End of report
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