Routing Table Report 08:00 +10GMT Thu 01 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 363637
Prefixes after maximum aggregation: 165162
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 183155
Total ASes present in the Internet Routing Table: 37111
Prefixes per ASN: 9.80
Origin-only ASes present in the Internet Routing Table: 32011
Origin ASes announcing only one prefix: 15401
Transit ASes present in the Internet Routing Table: 5100
Transit-only ASes present in the Internet Routing Table: 130
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 36
Max AS path prepend of ASN (22394) 33
Prefixes from unregistered ASNs in the Routing Table: 2542
Unregistered ASNs in the Routing Table: 751
Number of 32-bit ASNs allocated by the RIRs: 1690
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3170
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 107
Number of addresses announced to Internet: 2488528384
Equivalent to 148 /8s, 83 /16s and 238 /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: 150351
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87929
Total APNIC prefixes after maximum aggregation: 29231
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 85380
Unique aggregates announced from the APNIC address blocks: 37991
APNIC Region origin ASes present in the Internet Routing Table: 4496
APNIC Prefixes per ASN: 18.99
APNIC Region origin ASes announcing only one prefix: 1260
APNIC Region transit ASes present in the Internet Routing Table: 679
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: 624721152
Equivalent to 37 /8s, 60 /16s and 125 /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: 141583
Total ARIN prefixes after maximum aggregation: 72903
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113792
Unique aggregates announced from the ARIN address blocks: 47163
ARIN Region origin ASes present in the Internet Routing Table: 14542
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5603
ARIN Region transit ASes present in the Internet Routing Table: 1464
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 36
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 804030976
Equivalent to 47 /8s, 236 /16s and 138 /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: 88256
Total RIPE prefixes after maximum aggregation: 49837
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 81374
Unique aggregates announced from the RIPE address blocks: 53643
RIPE Region origin ASes present in the Internet Routing Table: 15915
RIPE Prefixes per ASN: 5.11
RIPE Region origin ASes announcing only one prefix: 7937
RIPE Region transit ASes present in the Internet Routing Table: 2511
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 35
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 488285952
Equivalent to 29 /8s, 26 /16s and 167 /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: 33705
Total LACNIC prefixes after maximum aggregation: 7616
LACNIC Deaggregation factor: 4.43
Prefixes being announced from the LACNIC address blocks: 33133
Unique aggregates announced from the LACNIC address blocks: 17522
LACNIC Region origin ASes present in the Internet Routing Table: 1499
LACNIC Prefixes per ASN: 22.10
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 265
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: 87841024
Equivalent to 5 /8s, 60 /16s and 89 /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: 8295
Total AfriNIC prefixes after maximum aggregation: 2076
AfriNIC Deaggregation factor: 4.00
Prefixes being announced from the AfriNIC address blocks: 6396
Unique aggregates announced from the AfriNIC address blocks: 2021
AfriNIC Region origin ASes present in the Internet Routing Table: 480
AfriNIC Prefixes per ASN: 13.32
AfriNIC Region origin ASes announcing only one prefix: 152
AfriNIC Region transit ASes present in the Internet Routing Table: 106
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: 26782976
Equivalent to 1 /8s, 152 /16s and 173 /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 1942 11038 647 Korea Telecom (KIX)
17974 1626 516 31 PT Telekomunikasi Indonesia
4755 1528 374 165 TATA Communications formerly
7545 1445 301 82 TPG Internet Pty Ltd
24560 1195 337 187 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 992 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 3577 3817 228 BellSouth.net Inc.
18566 1910 364 238 Covad Communications Co.
1785 1824 680 122 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 1447 2903 96 Cox Communications Inc.
19262 1390 4692 399 Verizon Online LLC
7018 1349 7085 886 AT&T Services, Inc.
2386 1217 515 876 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 522 1811 321 UPC Broadband
20940 492 146 383 Akamai Technologies European
3292 470 2079 404 TDC Data Networks
12479 465 593 7 France Telecom Espana SA
8866 458 133 26 Bulgarian Telecommunication C
3320 429 8151 373 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 1628 298 154 Types of queries are: POCs, o
28573 1269 998 69 Types of queries are: POCs, o
8151 1266 2759 347 Uninet S.A. de C.V.
7303 1049 578 164 Telecom Argentina S.A.
14420 715 57 88 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 549 56 77 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 627 445 11 TEDATA
15475 512 74 8 Nile Online
36992 301 415 14 Etisalat MISR
3741 266 937 227 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 219 32 6 Sudatel Internet Exchange Aut
33776 199 12 21 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 3577 3817 228 BellSouth.net Inc.
23456 3170 753 1706 32-bit ASN transition
4766 1942 11038 647 Korea Telecom (KIX)
18566 1910 364 238 Covad Communications Co.
1785 1824 680 122 PaeTec Communications, Inc.
10620 1628 298 154 Types of queries are: POCs, o
17974 1626 516 31 PT Telekomunikasi Indonesia
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 1824 1702 PaeTec Communications, Inc.
18566 1910 1672 Covad Communications Co.
17974 1626 1595 PT Telekomunikasi Indonesia
10620 1628 1474 Types of queries are: POCs, o
23456 3170 1464 32-bit ASN transition
7029 1615 1407 Windstream Communications Inc
4755 1528 1363 TATA Communications formerly
7545 1445 1363 TPG Internet Pty Ltd
22773 1447 1351 Cox Communications Inc.
4766 1942 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 /14:796 /15:1407 /16:11902 /17:5923 /18:9930
/19:19693 /20:26600 /21:26642 /22:35480 /23:33968 /24:189945
/25:12 /26:20 /27:23 /28:157 /29:114 /30:60
/31:0 /32:130
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2209 3577 BellSouth.net Inc.
18566 1867 1910 Covad Communications Co.
23456 1554 3170 32-bit ASN transition
10620 1523 1628 Types of queries are: POCs, o
7029 1298 1615 Windstream Communications Inc
11492 1105 1151 CABLE ONE, INC.
7011 1057 1182 Frontier Communications of Am
1785 1053 1824 PaeTec Communications, Inc.
22773 940 1447 Cox Communications Inc.
30036 926 954 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:364 2:45 4:15 5:1 6:3 8:341
12:1953 13:1 14:521 15:13 16:3 17:5
20:10 23:31 24:1672 27:902 31:513 32:59
33:4 34:2 36:4 38:730 40:107 41:2411
42:53 44:3 46:1071 47:3 49:226 50:412
52:13 54:2 55:5 56:2 57:34 58:820
59:487 60:366 61:1012 62:1100 63:1933 64:3977
65:2301 66:3925 67:1935 68:1107 69:3120 70:777
71:374 72:1860 74:2417 75:327 76:338 77:865
78:704 79:464 80:1123 81:832 82:500 83:479
84:686 85:1085 86:503 87:860 88:339 89:1535
90:231 91:4066 92:525 93:1126 94:1362 95:876
96:414 97:268 98:926 99:37 101:74 103:245
106:79 107:38 108:76 109:1018 110:628 111:741
112:300 113:407 114:600 115:683 116:975 117:661
118:847 119:1176 120:329 121:660 122:1609 123:996
124:1285 125:1269 128:208 129:171 130:160 131:577
132:110 133:21 134:206 135:50 136:212 137:132
138:294 139:114 140:467 141:286 142:371 143:429
144:483 145:60 146:456 147:236 148:613 149:248
150:148 151:190 152:440 153:179 154:5 155:398
156:198 157:323 158:141 159:391 160:317 161:198
162:331 163:157 164:513 165:364 166:537 167:433
168:743 169:148 170:845 171:84 172:1 173:1639
174:617 175:388 176:155 177:240 178:1007 180:998
181:25 182:595 183:238 184:351 185:1 186:1406
187:688 188:938 189:883 190:5107 192:5879 193:4994
194:3511 195:3049 196:1230 197:144 198:3530 199:4043
200:5435 201:1519 202:8205 203:8359 204:4168 205:2307
206:2589 207:2764 208:4017 209:3404 210:2609 211:1452
212:2102 213:1762 214:769 215:75 216:4818 217:1621
218:543 219:339 220:1178 221:499 222:302 223:253
End of report
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