Routing Table Report 08:00 +10GMT Mon 29 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 362780
Prefixes after maximum aggregation: 164665
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 182767
Total ASes present in the Internet Routing Table: 37024
Prefixes per ASN: 9.80
Origin-only ASes present in the Internet Routing Table: 31936
Origin ASes announcing only one prefix: 15340
Transit ASes present in the Internet Routing Table: 5088
Transit-only ASes present in the Internet Routing Table: 136
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 2519
Unregistered ASNs in the Routing Table: 744
Number of 32-bit ASNs allocated by the RIRs: 1684
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3136
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 107
Number of addresses announced to Internet: 2487577856
Equivalent to 148 /8s, 69 /16s and 109 /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: 91.2
Total number of prefixes smaller than registry allocations: 149771
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87964
Total APNIC prefixes after maximum aggregation: 29179
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 85386
Unique aggregates announced from the APNIC address blocks: 37933
APNIC Region origin ASes present in the Internet Routing Table: 4494
APNIC Prefixes per ASN: 19.00
APNIC Region origin ASes announcing only one prefix: 1263
APNIC Region transit ASes present in the Internet Routing Table: 681
Average APNIC Region AS path length visible: 3.9
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: 624726016
Equivalent to 37 /8s, 60 /16s and 144 /24s
Percentage of available APNIC address space announced: 79.2
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 141012
Total ARIN prefixes after maximum aggregation: 72606
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113384
Unique aggregates announced from the ARIN address blocks: 47068
ARIN Region origin ASes present in the Internet Routing Table: 14479
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5566
ARIN Region transit ASes present in the Internet Routing Table: 1462
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: 803916544
Equivalent to 47 /8s, 234 /16s and 203 /24s
Percentage of available ARIN address space announced: 63.9
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: 88100
Total RIPE prefixes after maximum aggregation: 49752
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 81257
Unique aggregates announced from the RIPE address blocks: 53586
RIPE Region origin ASes present in the Internet Routing Table: 15897
RIPE Prefixes per ASN: 5.11
RIPE Region origin ASes announcing only one prefix: 7916
RIPE Region transit ASes present in the Internet Routing Table: 2501
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 488221952
Equivalent to 29 /8s, 25 /16s and 173 /24s
Percentage of available RIPE address space announced: 78.6
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: 33617
Total LACNIC prefixes after maximum aggregation: 7615
LACNIC Deaggregation factor: 4.41
Prefixes being announced from the LACNIC address blocks: 33053
Unique aggregates announced from the LACNIC address blocks: 17473
LACNIC Region origin ASes present in the Internet Routing Table: 1493
LACNIC Prefixes per ASN: 22.14
LACNIC Region origin ASes announcing only one prefix: 446
LACNIC Region transit ASes present in the Internet Routing Table: 263
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: 87811072
Equivalent to 5 /8s, 59 /16s and 228 /24s
Percentage of available LACNIC address space announced: 58.2
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: 8261
Total AfriNIC prefixes after maximum aggregation: 2063
AfriNIC Deaggregation factor: 4.00
Prefixes being announced from the AfriNIC address blocks: 6363
Unique aggregates announced from the AfriNIC address blocks: 2005
AfriNIC Region origin ASes present in the Internet Routing Table: 477
AfriNIC Prefixes per ASN: 13.34
AfriNIC Region origin ASes announcing only one prefix: 149
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 3.3
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: 26787328
Equivalent to 1 /8s, 152 /16s and 190 /24s
Percentage of available AfriNIC address space announced: 39.9
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 1941 11038 646 Korea Telecom (KIX)
17974 1671 516 31 PT Telekomunikasi Indonesia
7545 1570 301 82 TPG Internet Pty Ltd
4755 1527 374 164 TATA Communications formerly
24560 1197 336 189 Bharti Airtel Ltd., Telemedia
9829 1153 989 28 National Internet Backbone
9583 1080 80 498 Sify Limited
17488 1021 193 148 Hathway IP Over Cable Interne
7552 1000 1062 11 Vietel Corporation
18101 953 118 139 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 3581 3817 228 BellSouth.net Inc.
18566 1910 364 238 Covad Communications Co.
1785 1824 681 123 PaeTec Communications, Inc.
7029 1615 1033 208 Windstream Communications Inc
4323 1613 1101 396 tw telecom holdings, inc.
20115 1587 1538 632 Charter Communications
22773 1440 2903 96 Cox Communications Inc.
19262 1404 4778 395 Verizon Online LLC
7018 1346 7085 885 AT&T Services, Inc.
2386 1210 515 873 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
34984 541 107 182 BILISIM TELEKOM
9116 540 326 31 Goldenlines main autonomous s
6830 521 1810 321 UPC Broadband
20940 482 144 380 Akamai Technologies European
3292 470 2080 405 TDC Data Networks
8866 458 133 26 Bulgarian Telecommunication C
12479 456 593 7 France Telecom Espana SA
3320 424 8151 370 Deutsche Telekom AG
29049 423 31 57 AzerSat LLC.
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 1625 297 155 Types of queries are: POCs, o
8151 1267 2759 346 Uninet S.A. de C.V.
28573 1259 996 67 Types of queries are: POCs, o
7303 1047 578 164 Telecom Argentina S.A.
14420 711 56 87 CORPORACION NACIONAL DE TELEC
6503 579 450 69 Axtel, S.A.B. de C.V.
22047 578 322 17 Types of queries are: POCs, o
27947 550 56 78 Telconet S.A
3816 534 232 97 Types of queries are: POCs, o
7738 515 986 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
24863 807 147 41 LINKdotNET AS number
8452 636 445 11 TEDATA
15475 513 74 8 Nile Online
36992 301 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 219 32 6 Sudatel Internet Exchange Aut
33776 198 12 22 Starcomms Nigeria Limited
12258 195 28 62 Vodacom Internet Company
24835 176 70 11 RAYA Telecom - Egypt
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 3581 3817 228 BellSouth.net Inc.
23456 3136 744 1682 32-bit ASN transition
4766 1941 11038 646 Korea Telecom (KIX)
18566 1910 364 238 Covad Communications Co.
1785 1824 681 123 PaeTec Communications, Inc.
17974 1671 516 31 PT Telekomunikasi Indonesia
10620 1625 297 155 Types of queries are: POCs, o
7029 1615 1033 208 Windstream Communications Inc
4323 1613 1101 396 tw telecom holdings, inc.
20115 1587 1538 632 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 1824 1701 PaeTec Communications, Inc.
18566 1910 1672 Covad Communications Co.
17974 1671 1640 PT Telekomunikasi Indonesia
7545 1570 1488 TPG Internet Pty Ltd
10620 1625 1470 Types of queries are: POCs, o
23456 3136 1454 32-bit ASN transition
7029 1615 1407 Windstream Communications Inc
4755 1527 1363 TATA Communications formerly
22773 1440 1344 Cox Communications Inc.
4766 1941 1295 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<<
46.18.104.0/21 23456 32-bit ASN transition
62.61.220.0/24 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 /8:20 /9:12 /10:27 /11:81 /12:234
/13:461 /14:794 /15:1409 /16:11897 /17:5926 /18:9930
/19:19656 /20:26562 /21:26566 /22:35421 /23:34003 /24:189273
/25:12 /26:20 /27:23 /28:155 /29:112 /30:60
/31:0 /32:126
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2212 3581 BellSouth.net Inc.
18566 1867 1910 Covad Communications Co.
23456 1540 3136 32-bit ASN transition
10620 1520 1625 Types of queries are: POCs, o
7029 1298 1615 Windstream Communications Inc
11492 1105 1151 CABLE ONE, INC.
7011 1061 1186 Frontier Communications of Am
1785 1052 1824 PaeTec Communications, Inc.
22773 935 1440 Cox Communications Inc.
30036 929 957 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:362 2:43 4:15 5:1 6:3 8:340
12:1946 13:1 14:509 15:13 16:3 17:5
20:10 23:31 24:1666 27:909 31:512 32:59
33:4 34:2 36:4 38:727 40:107 41:2414
42:50 44:3 46:1066 47:3 49:221 50:420
52:13 54:2 55:6 56:2 57:34 58:817
59:495 60:373 61:1009 62:1094 63:1918 64:3972
65:2300 66:3912 67:1919 68:1093 69:3115 70:775
71:374 72:1836 74:2409 75:329 76:335 77:866
78:707 79:480 80:1119 81:825 82:491 83:476
84:685 85:1082 86:502 87:846 88:339 89:1536
90:224 91:4053 92:525 93:1131 94:1348 95:875
96:413 97:265 98:924 99:37 101:74 103:240
106:79 107:36 108:75 109:1016 110:628 111:733
112:307 113:413 114:556 115:685 116:975 117:654
118:841 119:1181 120:330 121:655 122:1608 123:982
124:1282 125:1269 128:187 129:170 130:160 131:574
132:109 133:21 134:205 135:50 136:211 137:133
138:291 139:114 140:456 141:285 142:369 143:421
144:480 145:60 146:455 147:219 148:616 149:250
150:148 151:187 152:439 153:179 154:4 155:398
156:198 157:323 158:140 159:391 160:315 161:198
162:331 163:156 164:510 165:360 166:537 167:431
168:740 169:148 170:845 171:83 172:1 173:1634
174:628 175:388 176:155 177:251 178:1009 180:995
181:25 182:590 183:237 184:343 185:1 186:1390
187:688 188:937 189:860 190:5113 192:5855 193:4983
194:3507 195:3046 196:1239 197:142 198:3512 199:4023
200:5426 201:1504 202:8162 203:8367 204:4172 205:2289
206:2573 207:2753 208:3998 209:3395 210:2593 211:1450
212:2098 213:1761 214:768 215:76 216:4787 217:1587
218:539 219:347 220:1186 221:498 222:301 223:245
End of report
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