Routing Table Report 08:00 +10GMT Mon 04 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 356979
Prefixes after maximum aggregation: 162755
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 179724
Total ASes present in the Internet Routing Table: 36677
Prefixes per ASN: 9.73
Origin-only ASes present in the Internet Routing Table: 31647
Origin ASes announcing only one prefix: 15237
Transit ASes present in the Internet Routing Table: 5030
Transit-only ASes present in the Internet Routing Table: 116
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 30
Max AS path prepend of ASN (22394) 27
Prefixes from unregistered ASNs in the Routing Table: 2273
Unregistered ASNs in the Routing Table: 572
Number of 32-bit ASNs allocated by the RIRs: 1521
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2819
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 131
Number of addresses announced to Internet: 2492018688
Equivalent to 148 /8s, 137 /16s and 48 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
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: 147210
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85649
Total APNIC prefixes after maximum aggregation: 28907
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 83355
Unique aggregates announced from the APNIC address blocks: 37100
APNIC Region origin ASes present in the Internet Routing Table: 4442
APNIC Prefixes per ASN: 18.77
APNIC Region origin ASes announcing only one prefix: 1254
APNIC Region transit ASes present in the Internet Routing Table: 676
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: 619510784
Equivalent to 36 /8s, 236 /16s and 252 /24s
Percentage of available APNIC address space announced: 78.6
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: 140190
Total ARIN prefixes after maximum aggregation: 72238
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 112477
Unique aggregates announced from the ARIN address blocks: 46624
ARIN Region origin ASes present in the Internet Routing Table: 14381
ARIN Prefixes per ASN: 7.82
ARIN Region origin ASes announcing only one prefix: 5508
ARIN Region transit ASes present in the Internet Routing Table: 1453
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 802890240
Equivalent to 47 /8s, 219 /16s and 34 /24s
Percentage of available ARIN address space announced: 63.8
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: 86695
Total RIPE prefixes after maximum aggregation: 49010
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 80127
Unique aggregates announced from the RIPE address blocks: 52639
RIPE Region origin ASes present in the Internet Routing Table: 15759
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7875
RIPE Region transit ASes present in the Internet Routing Table: 2466
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 478786560
Equivalent to 28 /8s, 137 /16s and 180 /24s
Percentage of available RIPE address space announced: 77.1
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: 32600
Total LACNIC prefixes after maximum aggregation: 7468
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 32059
Unique aggregates announced from the LACNIC address blocks: 16931
LACNIC Region origin ASes present in the Internet Routing Table: 1462
LACNIC Prefixes per ASN: 21.93
LACNIC Region origin ASes announcing only one prefix: 451
LACNIC Region transit ASes present in the Internet Routing Table: 259
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: 85646592
Equivalent to 5 /8s, 26 /16s and 221 /24s
Percentage of available LACNIC address space announced: 56.7
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: 8291
Total AfriNIC prefixes after maximum aggregation: 2000
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 6438
Unique aggregates announced from the AfriNIC address blocks: 1958
AfriNIC Region origin ASes present in the Internet Routing Table: 467
AfriNIC Prefixes per ASN: 13.79
AfriNIC Region origin ASes announcing only one prefix: 149
AfriNIC Region transit ASes present in the Internet Routing Table: 99
Average AfriNIC Region AS path length visible: 3.4
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: 24302848
Equivalent to 1 /8s, 114 /16s and 213 /24s
Percentage of available AfriNIC address space announced: 36.2
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 1903 9492 626 Korea Telecom (KIX)
7545 1541 301 84 TPG Internet Pty Ltd
17974 1540 461 42 PT Telekomunikasi Indonesia
4755 1472 371 161 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
9829 1096 913 47 National Internet Backbone
9583 1056 78 506 Sify Limited
17488 956 186 104 Hathway IP Over Cable Interne
4808 951 2007 275 CNCGROUP IP network China169
18101 934 116 140 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 3616 3819 249 BellSouth.net Inc.
18566 1912 365 240 Covad Communications Co.
1785 1805 681 122 PaeTec Communications, Inc.
4323 1658 1098 401 tw telecom holdings, inc.
20115 1593 1532 636 Charter Communications
19262 1449 4806 370 Verizon Online LLC
7029 1383 1031 207 Windstream Communications Inc
7018 1377 7102 903 AT&T Services, Inc.
22773 1347 2897 88 Cox Communications Inc.
6478 1340 248 614 AT&T Services, 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 540 326 31 Goldenlines main autonomous s
34984 535 106 185 BILISIM TELEKOM
6830 512 1780 318 UPC Broadband
3292 469 2080 404 TDC Data Networks
20940 468 137 361 Akamai Technologies European
8866 451 134 26 Bulgarian Telecommunication C
29049 440 33 45 AzerSat LLC.
12479 439 593 7 France Telecom Espana SA
3320 420 8151 367 Deutsche Telekom AG
8551 405 355 38 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 1541 282 157 Types of queries are: POCs, o
8151 1254 2724 353 Uninet S.A. de C.V.
28573 1251 996 80 Types of queries are: POCs, o
7303 977 506 163 Telecom Argentina S.A.
6503 736 354 74 Axtel, S.A.B. de C.V.
14420 685 55 81 CORPORACION NACIONAL DE TELEC
22047 576 322 17 Types of queries are: POCs, o
3816 533 230 95 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
11172 495 100 85 Alestra, S. de R.L. de C.V.
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 793 445 11 TEDATA
24863 787 147 35 LINKdotNET AS number
15475 523 74 8 Nile Online
36992 315 415 14 Etisalat MISR
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 212 12 8 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
16637 149 441 87 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 3616 3819 249 BellSouth.net Inc.
23456 2819 693 1519 32-bit ASN transition
18566 1912 365 240 Covad Communications Co.
4766 1903 9492 626 Korea Telecom (KIX)
1785 1805 681 122 PaeTec Communications, Inc.
4323 1658 1098 401 tw telecom holdings, inc.
20115 1593 1532 636 Charter Communications
7545 1541 301 84 TPG Internet Pty Ltd
10620 1541 282 157 Types of queries are: POCs, o
17974 1540 461 42 PT Telekomunikasi Indonesia
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 1805 1683 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications Co.
17974 1540 1498 PT Telekomunikasi Indonesia
7545 1541 1457 TPG Internet Pty Ltd
10620 1541 1384 Types of queries are: POCs, o
4755 1472 1311 TATA Communications formerly
23456 2819 1300 32-bit ASN transition
4766 1903 1277 Korea Telecom (KIX)
22773 1347 1259 Cox Communications Inc.
4323 1658 1257 tw telecom holdings, 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 /8:22 /9:12 /10:28 /11:81 /12:231
/13:461 /14:800 /15:1396 /16:11947 /17:5855 /18:9731
/19:19551 /20:25900 /21:26114 /22:34392 /23:33169 /24:186776
/25:13 /26:19 /27:26 /28:161 /29:104 /30:58
/31:0 /32:132
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2224 3616 BellSouth.net Inc.
18566 1868 1912 Covad Communications Co.
10620 1436 1541 Types of queries are: POCs, o
23456 1391 2819 32-bit ASN transition
6478 1311 1340 AT&T Services, Inc.
11492 1091 1137 CABLE ONE, INC.
7029 1063 1383 Windstream Communications Inc
7011 1055 1156 Frontier Communications of Am
1785 1052 1805 PaeTec Communications, Inc.
22773 861 1347 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:318 2:47 4:16 5:1 6:3 8:336
12:1974 13:1 14:462 15:15 16:3 17:8
20:10 23:13 24:1661 27:810 31:487 32:59
33:4 34:2 36:4 37:1 38:740 39:3
40:103 41:2520 42:31 44:3 46:1011 47:3
49:196 50:435 52:13 54:2 55:3 56:2
57:30 58:815 59:473 60:384 61:1010 62:1024
63:1930 64:3911 65:2288 66:3863 67:1899 68:1084
69:3032 70:755 71:389 72:1891 74:2379 75:312
76:340 77:885 78:714 79:469 80:1112 81:848
82:507 83:460 84:687 85:1077 86:551 87:761
88:337 89:1530 90:211 91:3931 92:536 93:1056
94:1329 95:853 96:441 97:255 98:892 99:36
101:72 103:100 106:10 107:19 108:71 109:1016
110:605 111:711 112:295 113:402 114:544 115:662
116:948 117:661 118:808 119:1137 120:308 121:645
122:1598 123:954 124:1249 125:1222 128:208 129:167
130:162 131:570 132:104 133:21 134:206 135:48
136:199 137:133 138:299 139:113 140:459 141:241
142:387 143:413 144:481 145:54 146:444 147:213
148:589 149:246 150:155 151:189 152:328 153:180
154:3 155:399 156:195 157:322 158:136 159:384
160:313 161:201 162:306 163:155 164:510 165:357
166:528 167:432 168:734 169:156 170:843 171:78
172:1 173:1632 174:615 175:362 176:143 177:154
178:960 180:867 181:21 182:473 183:223 184:325
185:1 186:1258 187:722 188:872 189:943 190:4919
192:5848 193:4970 194:3494 195:3029 196:1220 197:41
198:3513 199:3929 200:5443 201:1492 202:8177 203:8315
204:4148 205:2336 206:2592 207:2739 208:3956 209:3425
210:2600 211:1446 212:2114 213:1748 214:767 215:69
216:4904 217:1633 218:532 219:357 220:1197 221:476
222:311 223:179
End of report
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