Routing Table Report 08:00 +10GMT Sat 30 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 359561
Prefixes after maximum aggregation: 163783
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 181184
Total ASes present in the Internet Routing Table: 36855
Prefixes per ASN: 9.76
Origin-only ASes present in the Internet Routing Table: 31773
Origin ASes announcing only one prefix: 15298
Transit ASes present in the Internet Routing Table: 5082
Transit-only ASes present in the Internet Routing Table: 129
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 38
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 2367
Unregistered ASNs in the Routing Table: 650
Number of 32-bit ASNs allocated by the RIRs: 1603
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2963
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 118
Number of addresses announced to Internet: 2505321216
Equivalent to 149 /8s, 84 /16s and 43 /24s
Percentage of available address space announced: 67.6
Percentage of allocated address space announced: 67.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 148493
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86748
Total APNIC prefixes after maximum aggregation: 29073
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 84205
Unique aggregates announced from the APNIC address blocks: 37527
APNIC Region origin ASes present in the Internet Routing Table: 4465
APNIC Prefixes per ASN: 18.86
APNIC Region origin ASes announcing only one prefix: 1259
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: 621971200
Equivalent to 37 /8s, 18 /16s and 135 /24s
Percentage of available APNIC address space announced: 78.9
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, 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: 140427
Total ARIN prefixes after maximum aggregation: 72509
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 112580
Unique aggregates announced from the ARIN address blocks: 46612
ARIN Region origin ASes present in the Internet Routing Table: 14433
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5541
ARIN Region transit ASes present in the Internet Routing Table: 1458
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 802930432
Equivalent to 47 /8s, 219 /16s and 191 /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: 87281
Total RIPE prefixes after maximum aggregation: 49394
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 80594
Unique aggregates announced from the RIPE address blocks: 53054
RIPE Region origin ASes present in the Internet Routing Table: 15823
RIPE Prefixes per ASN: 5.09
RIPE Region origin ASes announcing only one prefix: 7901
RIPE Region transit ASes present in the Internet Routing Table: 2497
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 38
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 484455680
Equivalent to 28 /8s, 224 /16s and 53 /24s
Percentage of available RIPE address space announced: 78.0
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: 33257
Total LACNIC prefixes after maximum aggregation: 7544
LACNIC Deaggregation factor: 4.41
Prefixes being announced from the LACNIC address blocks: 32656
Unique aggregates announced from the LACNIC address blocks: 17283
LACNIC Region origin ASes present in the Internet Routing Table: 1479
LACNIC Prefixes per ASN: 22.08
LACNIC Region origin ASes announcing only one prefix: 448
LACNIC Region transit ASes present in the Internet Routing Table: 264
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: 87218688
Equivalent to 5 /8s, 50 /16s and 218 /24s
Percentage of available LACNIC address space announced: 57.8
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: 8187
Total AfriNIC prefixes after maximum aggregation: 1983
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 6467
Unique aggregates announced from the AfriNIC address blocks: 2024
AfriNIC Region origin ASes present in the Internet Routing Table: 476
AfriNIC Prefixes per ASN: 13.59
AfriNIC Region origin ASes announcing only one prefix: 149
AfriNIC Region transit ASes present in the Internet Routing Table: 103
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: 26906624
Equivalent to 1 /8s, 154 /16s and 144 /24s
Percentage of available AfriNIC address space announced: 40.1
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 1920 11037 640 Korea Telecom (KIX)
7545 1556 301 84 TPG Internet Pty Ltd
4755 1505 375 169 TATA Communications formerly
17974 1504 508 32 PT Telekomunikasi Indonesia
24560 1194 336 187 Bharti Airtel Ltd., Telemedia
9829 1115 929 42 National Internet Backbone
9583 1075 80 510 Sify Limited
17488 975 189 114 Hathway IP Over Cable Interne
7552 955 1062 11 Vietel Corporation
4808 950 2004 274 CNCGROUP IP network China169
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 3620 3818 238 BellSouth.net Inc.
18566 1911 364 239 Covad Communications Co.
1785 1815 681 121 PaeTec Communications, Inc.
7029 1643 1031 209 Windstream Communications Inc
4323 1615 1098 402 tw telecom holdings, inc.
20115 1590 1538 623 Charter Communications
19262 1413 4792 392 Verizon Online LLC
22773 1405 2900 90 Cox Communications Inc.
7018 1373 7101 900 AT&T Services, Inc.
2386 1257 520 905 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 540 326 31 Goldenlines main autonomous s
34984 534 106 185 BILISIM TELEKOM
6830 511 1788 316 UPC Broadband
3292 468 2078 403 TDC Data Networks
20940 465 134 359 Akamai Technologies European
12479 456 593 7 France Telecom Espana SA
8866 454 133 26 Bulgarian Telecommunication C
29049 431 31 49 AzerSat LLC.
3320 424 8151 370 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 1565 288 167 Types of queries are: POCs, o
28573 1268 996 67 Types of queries are: POCs, o
8151 1254 2730 351 Uninet S.A. de C.V.
7303 1044 577 163 Telecom Argentina S.A.
6503 750 451 78 Axtel, S.A.B. de C.V.
14420 701 56 82 CORPORACION NACIONAL DE TELEC
22047 578 322 17 Types of queries are: POCs, o
3816 534 232 96 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 500 54 49 Telconet 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
24863 796 147 34 LINKdotNET AS number
8452 791 445 11 TEDATA
15475 510 74 8 Nile Online
3741 265 937 226 The Internet Solution
6713 260 519 14 Itissalat Al-MAGHRIB
36992 258 415 15 Etisalat MISR
33776 227 13 6 Starcomms Nigeria Limited
24835 177 78 10 RAYA Telecom - Egypt
29571 158 17 11 Ci Telecom Autonomous system
16637 149 697 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 3620 3818 238 BellSouth.net Inc.
23456 2963 717 1595 32-bit ASN transition
4766 1920 11037 640 Korea Telecom (KIX)
18566 1911 364 239 Covad Communications Co.
1785 1815 681 121 PaeTec Communications, Inc.
7029 1643 1031 209 Windstream Communications Inc
4323 1615 1098 402 tw telecom holdings, inc.
20115 1590 1538 623 Charter Communications
10620 1565 288 167 Types of queries are: POCs, o
7545 1556 301 84 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
1785 1815 1694 PaeTec Communications, Inc.
18566 1911 1672 Covad Communications Co.
7545 1556 1472 TPG Internet Pty Ltd
17974 1504 1472 PT Telekomunikasi Indonesia
7029 1643 1434 Windstream Communications Inc
10620 1565 1398 Types of queries are: POCs, o
23456 2963 1368 32-bit ASN transition
4755 1505 1336 TATA Communications formerly
22773 1405 1315 Cox Communications Inc.
4766 1920 1280 Korea Telecom (KIX)
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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV
62.61.221.0/24 24974 Tachyon Europe BV
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 /8:21 /9:12 /10:27 /11:80 /12:234
/13:465 /14:798 /15:1404 /16:12017 /17:5865 /18:9780
/19:19615 /20:26263 /21:26229 /22:34696 /23:33536 /24:188009
/25:12 /26:19 /27:23 /28:156 /29:112 /30:59
/31:0 /32:129
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2242 3620 BellSouth.net Inc.
18566 1868 1911 Covad Communications Co.
10620 1460 1565 Types of queries are: POCs, o
23456 1456 2963 32-bit ASN transition
7029 1321 1643 Windstream Communications Inc
11492 1095 1141 CABLE ONE, INC.
7011 1057 1159 Frontier Communications of Am
1785 1053 1815 PaeTec Communications, Inc.
6478 973 1001 AT&T Services, Inc.
22773 904 1405 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:338 2:46 4:16 5:1 6:3 8:339
12:1959 13:1 14:485 15:15 16:3 17:5
20:10 23:16 24:1676 27:854 31:506 32:59
33:4 34:2 36:4 38:724 40:104 41:2556
42:36 44:3 46:1050 47:3 49:201 50:356
52:13 54:2 55:6 56:2 57:33 58:816
59:482 60:376 61:1020 62:1049 63:1931 64:3963
65:2299 66:3892 67:1887 68:1107 69:3054 70:776
71:373 72:1870 74:2432 75:327 76:340 77:864
78:706 79:477 80:1118 81:842 82:507 83:469
84:690 85:1070 86:519 87:765 88:334 89:1533
90:224 91:3988 92:527 93:1057 94:1337 95:867
96:415 97:256 98:912 99:37 101:77 103:162
106:78 107:26 108:73 109:1016 110:601 111:714
112:298 113:404 114:554 115:668 116:965 117:644
118:813 119:1164 120:312 121:648 122:1601 123:964
124:1276 125:1279 128:208 129:163 130:164 131:576
132:105 133:21 134:206 135:52 136:212 137:129
138:296 139:113 140:458 141:255 142:387 143:419
144:483 145:56 146:449 147:213 148:605 149:251
150:153 151:189 152:339 153:182 154:4 155:399
156:196 157:324 158:140 159:386 160:316 161:195
162:307 163:156 164:507 165:367 166:531 167:432
168:740 169:151 170:834 171:81 172:1 173:1593
174:609 175:372 176:148 177:187 178:995 180:901
181:26 182:500 183:234 184:340 185:1 186:1311
187:747 188:894 189:966 190:5025 192:5876 193:4980
194:3504 195:3063 196:1207 197:46 198:3531 199:3948
200:5477 201:1472 202:8182 203:8359 204:4161 205:2304
206:2577 207:2727 208:3984 209:3385 210:2594 211:1444
212:2100 213:1784 214:769 215:69 216:4875 217:1632
218:536 219:338 220:1190 221:478 222:308 223:233
End of report
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