Routing Table Report 08:00 +10GMT Tue 15 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 345634
Prefixes after maximum aggregation: 157021
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 173067
Total ASes present in the Internet Routing Table: 35913
Prefixes per ASN: 9.62
Origin-only ASes present in the Internet Routing Table: 31057
Origin ASes announcing only one prefix: 14963
Transit ASes present in the Internet Routing Table: 4856
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: 25
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 1375
Unregistered ASNs in the Routing Table: 303
Number of 32-bit ASNs allocated by the RIRs: 1199
Prefixes from 32-bit ASNs in the Routing Table: 1854
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 244
Number of addresses announced to Internet: 2485835776
Equivalent to 148 /8s, 42 /16s and 216 /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: 89.1
Total number of prefixes smaller than registry allocations: 141877
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83238
Total APNIC prefixes after maximum aggregation: 28305
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 80848
Unique aggregates announced from the APNIC address blocks: 36226
APNIC Region origin ASes present in the Internet Routing Table: 4294
APNIC Prefixes per ASN: 18.83
APNIC Region origin ASes announcing only one prefix: 1213
APNIC Region transit ASes present in the Internet Routing Table: 653
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 595110656
Equivalent to 35 /8s, 120 /16s and 171 /24s
Percentage of available APNIC address space announced: 75.5
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, 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: 137453
Total ARIN prefixes after maximum aggregation: 70237
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 110175
Unique aggregates announced from the ARIN address blocks: 45005
ARIN Region origin ASes present in the Internet Routing Table: 14163
ARIN Prefixes per ASN: 7.78
ARIN Region origin ASes announcing only one prefix: 5398
ARIN Region transit ASes present in the Internet Routing Table: 1394
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 796390144
Equivalent to 47 /8s, 119 /16s and 243 /24s
Percentage of available ARIN address space announced: 63.3
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, 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: 83231
Total RIPE prefixes after maximum aggregation: 47189
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 76539
Unique aggregates announced from the RIPE address blocks: 49988
RIPE Region origin ASes present in the Internet Routing Table: 15424
RIPE Prefixes per ASN: 4.96
RIPE Region origin ASes announcing only one prefix: 7782
RIPE Region transit ASes present in the Internet Routing Table: 2407
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 481382144
Equivalent to 28 /8s, 177 /16s and 79 /24s
Percentage of available RIPE address space announced: 77.5
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: 31684
Total LACNIC prefixes after maximum aggregation: 7272
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 30717
Unique aggregates announced from the LACNIC address blocks: 16128
LACNIC Region origin ASes present in the Internet Routing Table: 1422
LACNIC Prefixes per ASN: 21.60
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: 18
Number of LACNIC addresses announced to Internet: 81331200
Equivalent to 4 /8s, 217 /16s and 4 /24s
Percentage of available LACNIC address space announced: 53.9
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: 7511
Total AfriNIC prefixes after maximum aggregation: 1826
AfriNIC Deaggregation factor: 4.11
Prefixes being announced from the AfriNIC address blocks: 5897
Unique aggregates announced from the AfriNIC address blocks: 1832
AfriNIC Region origin ASes present in the Internet Routing Table: 436
AfriNIC Prefixes per ASN: 13.53
AfriNIC Region origin ASes announcing only one prefix: 131
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 22072832
Equivalent to 1 /8s, 80 /16s and 206 /24s
Percentage of available AfriNIC address space announced: 32.9
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 1865 9500 589 Korea Telecom (KIX)
7545 1567 301 83 TPG Internet Pty Ltd
4755 1465 653 155 TATA Communications formerly
17974 1409 460 30 PT Telekomunikasi Indonesia
24560 1129 324 186 Bharti Airtel Ltd., Telemedia
9583 1047 76 487 Sify Limited
9829 1004 868 53 National Internet Backbone
17488 944 162 96 Hathway IP Over Cable Interne
4808 938 2032 271 CNCGROUP IP network China169
18101 935 117 141 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 3678 3839 260 BellSouth.net Inc.
4323 2583 1109 403 tw telecom holdings, inc.
19262 1830 4953 282 Verizon Online LLC
1785 1791 681 131 PaeTec Communications, Inc.
6478 1545 299 72 AT&T Services, Inc.
20115 1526 1534 650 Charter Communications
18566 1520 325 178 Covad Communications Co.
7018 1382 6868 902 AT&T Services, Inc.
11492 1313 237 64 CABLE ONE, INC.
2386 1293 537 932 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 542 328 31 Goldenlines main autonomous s
6830 513 1780 317 UPC Broadband
9198 470 267 15 Kazakhtelecom Data Network Ad
3292 451 1996 390 TDC Data Networks
34984 450 95 201 BILISIM TELEKOM
8866 444 133 24 Bulgarian Telecommunication C
20940 415 98 319 Akamai Technologies European
3320 405 7604 351 Deutsche Telekom AG
8551 405 355 38 Bezeq International
12479 400 577 6 France Telecom Espana SA
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 1391 259 163 Types of queries are: POCs, o
8151 1224 2681 361 Uninet S.A. de C.V.
28573 1220 963 83 Types of queries are: POCs, o
6503 1174 354 74 Axtel, S.A.B. de C.V.
7303 897 463 134 Telecom Argentina S.A.
14420 634 51 88 CORPORACION NACIONAL DE TELEC
22047 541 310 15 Types of queries are: POCs, o
3816 515 225 96 Types of queries are: POCs, o
11172 487 99 83 Alestra, S. de R.L. de C.V.
7738 479 922 30 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 792 445 11 TEDATA
24863 770 147 37 LINKdotNET AS number
15475 420 90 8 Nile Online
36992 297 271 14 Etisalat MISR
3741 265 971 227 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 225 78 10 RAYA Telecom - Egypt
6713 204 199 11 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 139 422 85 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 3678 3839 260 BellSouth.net Inc.
4323 2583 1109 403 tw telecom holdings, inc.
4766 1865 9500 589 Korea Telecom (KIX)
23456 1854 473 1046 32-bit ASN transition
19262 1830 4953 282 Verizon Online LLC
1785 1791 681 131 PaeTec Communications, Inc.
7545 1567 301 83 TPG Internet Pty Ltd
6478 1545 299 72 AT&T Services, Inc.
20115 1526 1534 650 Charter Communications
18566 1520 325 178 Covad Communications Co.
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 2583 2180 tw telecom holdings, inc.
1785 1791 1660 PaeTec Communications, Inc.
19262 1830 1548 Verizon Online LLC
7545 1567 1484 TPG Internet Pty Ltd
6478 1545 1473 AT&T Services, Inc.
17974 1409 1379 PT Telekomunikasi Indonesia
18566 1520 1342 Covad Communications Co.
4755 1465 1310 TATA Communications formerly
4766 1865 1276 Korea Telecom (KIX)
11492 1313 1249 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
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T Services, Inc.
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.
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
1.5.0.0/16 38639 for assignment to JPNIC membe
1.6.0.0/15 38639 for assignment to JPNIC membe
1.8.0.0/16 38639 for assignment to JPNIC membe
1.20.0.0/16 38639 for assignment to JPNIC membe
1.32.0.0/16 38639 for assignment to JPNIC membe
1.37.0.0/16 38639 for assignment to JPNIC membe
1.187.0.0/16 38639 for assignment to JPNIC membe
14.0.0.0/24 38639 for assignment to JPNIC membe
14.0.1.0/24 38639 for assignment to JPNIC membe
14.0.2.0/23 38639 for assignment to JPNIC membe
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 /9:11 /10:26 /11:73 /12:217
/13:446 /14:766 /15:1368 /16:11536 /17:5639 /18:9314
/19:19110 /20:24644 /21:25171 /22:33452 /23:31808 /24:181578
/25:11 /26:17 /27:24 /28:151 /29:95 /30:48
/31:0 /32:104
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2268 3678 BellSouth.net Inc.
6478 1499 1545 AT&T Services, Inc.
18566 1499 1520 Covad Communications Co.
4323 1391 2583 tw telecom holdings, inc.
10620 1282 1391 Types of queries are: POCs, o
11492 1270 1313 CABLE ONE, INC.
7011 1064 1164 Frontier Communications of Am
1785 1055 1791 PaeTec Communications, Inc.
23456 1051 1854 32-bit ASN transition
6503 952 1174 Axtel, S.A.B. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:271 2:67 4:14 5:1 8:340 12:2024
13:1 14:402 15:15 16:3 17:8 20:9
23:3 24:1536 27:628 31:2 32:56 33:4
34:2 36:2 37:1 38:710 39:1 40:101
41:2308 42:13 44:3 46:717 47:4 49:160
50:202 52:13 55:2 56:2 57:29 58:757
59:491 60:385 61:1037 62:994 63:1917 64:3843
65:2350 66:4335 67:1775 68:1083 69:2891 70:702
71:399 72:1999 73:1 74:2346 75:285 76:343
77:845 78:698 79:455 80:1082 81:815 82:518
83:470 84:644 85:1045 86:575 87:766 88:353
89:1572 90:175 91:3627 92:489 93:1042 94:1221
95:779 96:466 97:252 98:800 99:34 101:59
106:1 107:4 108:129 109:903 110:475 111:710
112:311 113:379 114:474 115:707 116:942 117:657
118:704 119:1040 120:255 121:723 122:1610 123:1035
124:1282 125:1265 128:213 129:163 130:165 131:554
132:97 133:20 134:209 135:49 136:210 137:142
138:297 139:106 140:464 141:203 142:360 143:378
144:471 145:52 146:424 147:208 148:620 149:274
150:152 151:229 152:296 153:180 154:2 155:375
156:179 157:315 158:131 159:366 160:312 161:202
162:276 163:151 164:490 165:348 166:499 167:410
168:719 169:155 170:753 171:69 172:2 173:1264
174:517 175:324 177:35 178:804 180:804 181:4
182:372 183:240 184:233 186:1044 187:840 188:929
189:1032 190:4671 192:5705 193:4790 194:3486 195:2946
196:1204 197:4 198:3501 199:3824 200:5564 201:1570
202:8089 203:8370 204:4032 205:2284 206:2543 207:2974
208:3912 209:3450 210:2638 211:1343 212:1958 213:1710
214:762 215:63 216:4843 217:1650 218:544 219:378
220:1194 221:456 222:316 223:97
End of report
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