Routing Table Report 08:00 +10GMT Tue 30 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 363226
Prefixes after maximum aggregation: 164949
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 182884
Total ASes present in the Internet Routing Table: 37091
Prefixes per ASN: 9.79
Origin-only ASes present in the Internet Routing Table: 31997
Origin ASes announcing only one prefix: 15382
Transit ASes present in the Internet Routing Table: 5094
Transit-only ASes present in the Internet Routing Table: 134
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: 2534
Unregistered ASNs in the Routing Table: 747
Number of 32-bit ASNs allocated by the RIRs: 1685
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3137
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 108
Number of addresses announced to Internet: 2488157440
Equivalent to 148 /8s, 78 /16s and 69 /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: 149868
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88152
Total APNIC prefixes after maximum aggregation: 29234
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 85594
Unique aggregates announced from the APNIC address blocks: 37964
APNIC Region origin ASes present in the Internet Routing Table: 4499
APNIC Prefixes per ASN: 19.03
APNIC Region origin ASes announcing only one prefix: 1262
APNIC Region transit ASes present in the Internet Routing Table: 680
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: 624723456
Equivalent to 37 /8s, 60 /16s and 134 /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: 141254
Total ARIN prefixes after maximum aggregation: 72807
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113548
Unique aggregates announced from the ARIN address blocks: 47094
ARIN Region origin ASes present in the Internet Routing Table: 14529
ARIN Prefixes per ASN: 7.82
ARIN Region origin ASes announcing only one prefix: 5597
ARIN Region transit ASes present in the Internet Routing Table: 1467
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: 803917056
Equivalent to 47 /8s, 234 /16s and 205 /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: 88197
Total RIPE prefixes after maximum aggregation: 49789
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 81338
Unique aggregates announced from the RIPE address blocks: 53604
RIPE Region origin ASes present in the Internet Routing Table: 15907
RIPE Prefixes per ASN: 5.11
RIPE Region origin ASes announcing only one prefix: 7927
RIPE Region transit ASes present in the Internet Routing Table: 2503
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: 488240640
Equivalent to 29 /8s, 25 /16s and 246 /24s
Percentage of available RIPE address space announced: 78.7
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: 33543
Total LACNIC prefixes after maximum aggregation: 7604
LACNIC Deaggregation factor: 4.41
Prefixes being announced from the LACNIC address blocks: 32978
Unique aggregates announced from the LACNIC address blocks: 17437
LACNIC Region origin ASes present in the Internet Routing Table: 1498
LACNIC Prefixes per ASN: 22.01
LACNIC Region origin ASes announcing only one prefix: 449
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: 87737344
Equivalent to 5 /8s, 58 /16s and 196 /24s
Percentage of available LACNIC address space announced: 58.1
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: 8243
Total AfriNIC prefixes after maximum aggregation: 2063
AfriNIC Deaggregation factor: 4.00
Prefixes being announced from the AfriNIC address blocks: 6338
Unique aggregates announced from the AfriNIC address blocks: 1991
AfriNIC Region origin ASes present in the Internet Routing Table: 476
AfriNIC Prefixes per ASN: 13.32
AfriNIC Region origin ASes announcing only one prefix: 147
AfriNIC Region transit ASes present in the Internet Routing Table: 105
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: 26771200
Equivalent to 1 /8s, 152 /16s and 127 /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 1674 516 31 PT Telekomunikasi Indonesia
7545 1571 301 82 TPG Internet Pty Ltd
4755 1524 374 162 TATA Communications formerly
24560 1197 336 189 Bharti Airtel Ltd., Telemedia
9829 1153 989 28 National Internet Backbone
9583 1073 79 503 Sify Limited
17488 1021 191 149 Hathway IP Over Cable Interne
7552 1000 1062 11 Vietel Corporation
18101 951 118 139 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 3580 3817 228 BellSouth.net Inc.
18566 1910 364 238 Covad Communications Co.
1785 1825 681 123 PaeTec Communications, Inc.
7029 1615 1033 208 Windstream Communications Inc
4323 1614 1101 396 tw telecom holdings, inc.
20115 1588 1539 632 Charter Communications
22773 1441 2903 96 Cox Communications Inc.
7018 1348 7085 887 AT&T Services, Inc.
19262 1287 4773 393 Verizon Online LLC
2386 1218 515 879 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 492 146 383 Akamai Technologies European
3292 469 2079 404 TDC Data Networks
12479 464 593 7 France Telecom Espana SA
8866 458 133 26 Bulgarian Telecommunication C
29049 423 31 57 AzerSat LLC.
3320 422 8149 368 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 1626 297 153 Types of queries are: POCs, o
8151 1269 2759 346 Uninet S.A. de C.V.
28573 1258 996 68 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 626 445 11 TEDATA
15475 512 74 8 Nile Online
36992 302 415 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 177 70 12 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 3580 3817 228 BellSouth.net Inc.
23456 3137 744 1683 32-bit ASN transition
4766 1941 11038 646 Korea Telecom (KIX)
18566 1910 364 238 Covad Communications Co.
1785 1825 681 123 PaeTec Communications, Inc.
17974 1674 516 31 PT Telekomunikasi Indonesia
10620 1626 297 153 Types of queries are: POCs, o
7029 1615 1033 208 Windstream Communications Inc
4323 1614 1101 396 tw telecom holdings, inc.
20115 1588 1539 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 1825 1702 PaeTec Communications, Inc.
18566 1910 1672 Covad Communications Co.
17974 1674 1643 PT Telekomunikasi Indonesia
7545 1571 1489 TPG Internet Pty Ltd
10620 1626 1473 Types of queries are: POCs, o
23456 3137 1454 32-bit ASN transition
7029 1615 1407 Windstream Communications Inc
4755 1524 1362 TATA Communications formerly
22773 1441 1345 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 /14:795 /15:1409 /16:11901 /17:5930 /18:9934
/19:19659 /20:26594 /21:26592 /22:35439 /23:34028 /24:189592
/25:12 /26:20 /27:23 /28:157 /29:116 /30:60
/31:0 /32:130
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2211 3580 BellSouth.net Inc.
18566 1867 1910 Covad Communications Co.
23456 1533 3137 32-bit ASN transition
10620 1521 1626 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 1053 1825 PaeTec Communications, Inc.
22773 936 1441 Cox Communications Inc.
30036 930 958 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:363 2:45 4:15 5:1 6:3 8:343
12:1955 13:1 14:514 15:13 16:3 17:5
20:10 23:31 24:1672 27:907 31:515 32:59
33:4 34:2 36:4 38:730 40:107 41:2391
42:50 44:3 46:1067 47:3 49:226 50:423
52:13 54:2 55:6 56:2 57:34 58:819
59:485 60:374 61:1013 62:1090 63:1926 64:3981
65:2305 66:3920 67:1924 68:1093 69:3123 70:776
71:374 72:1843 74:2411 75:329 76:337 77:861
78:708 79:480 80:1106 81:826 82:500 83:476
84:685 85:1082 86:501 87:850 88:338 89:1532
90:231 91:4054 92:527 93:1149 94:1348 95:874
96:365 97:268 98:925 99:37 101:83 103:243
106:79 107:37 108:60 109:1013 110:630 111:734
112:308 113:411 114:600 115:685 116:971 117:659
118:841 119:1183 120:330 121:659 122:1609 123:1018
124:1284 125:1271 128:207 129:170 130:160 131:575
132:110 133:21 134:205 135:50 136:212 137:132
138:291 139:114 140:467 141:257 142:369 143:428
144:481 145:60 146:455 147:228 148:615 149:249
150:148 151:168 152:439 153:179 154:4 155:396
156:198 157:323 158:141 159:391 160:317 161:198
162:331 163:157 164:511 165:364 166:538 167:432
168:743 169:148 170:838 171:83 172:1 173:1637
174:629 175:387 176:155 177:251 178:1004 180:996
181:25 182:591 183:243 184:343 185:1 186:1392
187:686 188:936 189:877 190:5097 192:5875 193:4993
194:3509 195:3050 196:1239 197:143 198:3533 199:4037
200:5378 201:1502 202:8212 203:8362 204:4172 205:2292
206:2587 207:2758 208:4010 209:3404 210:2609 211:1453
212:2097 213:1760 214:773 215:76 216:4803 217:1616
218:543 219:343 220:1187 221:498 222:302 223:246
End of report
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