Routing Table Report 08:00 +10GMT Thu 21 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 358285
Prefixes after maximum aggregation: 163625
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 180721
Total ASes present in the Internet Routing Table: 36789
Prefixes per ASN: 9.74
Origin-only ASes present in the Internet Routing Table: 31735
Origin ASes announcing only one prefix: 15280
Transit ASes present in the Internet Routing Table: 5054
Transit-only ASes present in the Internet Routing Table: 123
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: 2289
Unregistered ASNs in the Routing Table: 625
Number of 32-bit ASNs allocated by the RIRs: 1576
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2904
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 119
Number of addresses announced to Internet: 2495911936
Equivalent to 148 /8s, 196 /16s and 152 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.1
Total number of prefixes smaller than registry allocations: 147816
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86320
Total APNIC prefixes after maximum aggregation: 29053
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 83918
Unique aggregates announced from the APNIC address blocks: 37479
APNIC Region origin ASes present in the Internet Routing Table: 4461
APNIC Prefixes per ASN: 18.81
APNIC Region origin ASes announcing only one prefix: 1259
APNIC Region transit ASes present in the Internet Routing Table: 677
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: 621862144
Equivalent to 37 /8s, 16 /16s and 221 /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: 140238
Total ARIN prefixes after maximum aggregation: 72542
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 112430
Unique aggregates announced from the ARIN address blocks: 46628
ARIN Region origin ASes present in the Internet Routing Table: 14419
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5537
ARIN Region transit ASes present in the Internet Routing Table: 1454
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: 802468608
Equivalent to 47 /8s, 212 /16s and 179 /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: 87009
Total RIPE prefixes after maximum aggregation: 49267
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 80392
Unique aggregates announced from the RIPE address blocks: 52916
RIPE Region origin ASes present in the Internet Routing Table: 15789
RIPE Prefixes per ASN: 5.09
RIPE Region origin ASes announcing only one prefix: 7880
RIPE Region transit ASes present in the Internet Routing Table: 2484
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 479656960
Equivalent to 28 /8s, 150 /16s and 252 /24s
Percentage of available RIPE address space announced: 77.3
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: 32876
Total LACNIC prefixes after maximum aggregation: 7519
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 32344
Unique aggregates announced from the LACNIC address blocks: 17087
LACNIC Region origin ASes present in the Internet Routing Table: 1472
LACNIC Prefixes per ASN: 21.97
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 257
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: 86086144
Equivalent to 5 /8s, 33 /16s and 146 /24s
Percentage of available LACNIC address space announced: 57.0
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: 8257
Total AfriNIC prefixes after maximum aggregation: 2017
AfriNIC Deaggregation factor: 4.09
Prefixes being announced from the AfriNIC address blocks: 6418
Unique aggregates announced from the AfriNIC address blocks: 1987
AfriNIC Region origin ASes present in the Internet Routing Table: 476
AfriNIC Prefixes per ASN: 13.48
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 105
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: 24450816
Equivalent to 1 /8s, 117 /16s and 23 /24s
Percentage of available AfriNIC address space announced: 36.4
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 1910 11036 633 Korea Telecom (KIX)
17974 1554 508 32 PT Telekomunikasi Indonesia
7545 1552 301 84 TPG Internet Pty Ltd
4755 1503 375 170 TATA Communications formerly
24560 1155 336 187 Bharti Airtel Ltd., Telemedia
9829 1106 923 47 National Internet Backbone
9583 1060 77 506 Sify Limited
17488 963 187 106 Hathway IP Over Cable Interne
4808 947 2003 274 CNCGROUP IP network China169
18101 933 116 139 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 3607 3818 239 BellSouth.net Inc.
18566 1911 364 239 Covad Communications Co.
1785 1813 681 122 PaeTec Communications, Inc.
4323 1615 1098 402 tw telecom holdings, inc.
20115 1587 1535 625 Charter Communications
19262 1410 4744 390 Verizon Online LLC
7029 1389 1031 209 Windstream Communications Inc
7018 1377 7102 903 AT&T Services, Inc.
22773 1351 2897 89 Cox Communications Inc.
2386 1258 520 906 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 510 1788 316 UPC Broadband
3292 468 2078 403 TDC Data Networks
20940 460 132 355 Akamai Technologies European
12479 456 593 7 France Telecom Espana SA
8866 450 133 25 Bulgarian Telecommunication C
29049 432 32 47 AzerSat LLC.
3320 423 8151 369 Deutsche Telekom AG
8551 404 355 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 1557 286 164 Types of queries are: POCs, o
28573 1266 995 77 Types of queries are: POCs, o
8151 1254 2728 350 Uninet S.A. de C.V.
7303 985 511 164 Telecom Argentina S.A.
6503 738 354 74 Axtel, S.A.B. de C.V.
14420 699 56 84 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 499 54 48 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 793 147 34 LINKdotNET AS number
8452 718 445 11 TEDATA
15475 511 74 8 Nile Online
36992 317 415 15 Etisalat MISR
3741 262 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 226 13 5 Starcomms Nigeria Limited
24835 179 78 10 RAYA Telecom - Egypt
29571 158 17 11 Ci Telecom Autonomous system
15706 149 32 6 Sudatel Internet Exchange Aut
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 3607 3818 239 BellSouth.net Inc.
23456 2904 709 1570 32-bit ASN transition
18566 1911 364 239 Covad Communications Co.
4766 1910 11036 633 Korea Telecom (KIX)
1785 1813 681 122 PaeTec Communications, Inc.
4323 1615 1098 402 tw telecom holdings, inc.
20115 1587 1535 625 Charter Communications
10620 1557 286 164 Types of queries are: POCs, o
17974 1554 508 32 PT Telekomunikasi Indonesia
7545 1552 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 1813 1691 PaeTec Communications, Inc.
18566 1911 1672 Covad Communications Co.
17974 1554 1522 PT Telekomunikasi Indonesia
7545 1552 1468 TPG Internet Pty Ltd
10620 1557 1393 Types of queries are: POCs, o
23456 2904 1334 32-bit ASN transition
4755 1503 1333 TATA Communications formerly
4766 1910 1277 Korea Telecom (KIX)
22773 1351 1262 Cox Communications Inc.
4323 1615 1213 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
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 /10:26 /11:80 /12:233
/13:465 /14:795 /15:1397 /16:11984 /17:5863 /18:9766
/19:19602 /20:25968 /21:26132 /22:34518 /23:33338 /24:187588
/25:11 /26:19 /27:22 /28:157 /29:105 /30:58
/31:0 /32:125
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2227 3607 BellSouth.net Inc.
18566 1867 1911 Covad Communications Co.
10620 1452 1557 Types of queries are: POCs, o
23456 1432 2904 32-bit ASN transition
11492 1092 1138 CABLE ONE, INC.
7029 1069 1389 Windstream Communications Inc
7011 1056 1158 Frontier Communications of Am
1785 1055 1813 PaeTec Communications, Inc.
6478 1013 1042 AT&T Services, Inc.
22773 866 1351 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:325 2:45 4:16 5:1 6:3 8:338
12:1962 13:1 14:477 15:15 16:3 17:5
20:10 23:14 24:1674 27:831 31:501 32:59
33:3 34:2 36:4 38:742 40:104 41:2514
42:34 44:3 46:1039 47:3 49:198 50:382
52:13 54:2 55:6 56:2 57:34 58:812
59:474 60:383 61:1019 62:1037 63:1927 64:3945
65:2294 66:3850 67:1873 68:1099 69:3042 70:757
71:386 72:1885 74:2410 75:317 76:337 77:885
78:711 79:471 80:1111 81:838 82:502 83:466
84:690 85:1063 86:513 87:768 88:334 89:1531
90:224 91:3965 92:526 93:1049 94:1349 95:857
96:413 97:262 98:889 99:37 101:75 103:139
106:73 107:22 108:73 109:1019 110:608 111:709
112:299 113:406 114:553 115:669 116:961 117:666
118:817 119:1159 120:313 121:651 122:1600 123:960
124:1266 125:1228 128:208 129:165 130:158 131:573
132:103 133:21 134:206 135:48 136:213 137:135
138:298 139:114 140:457 141:248 142:387 143:418
144:484 145:55 146:449 147:217 148:600 149:248
150:154 151:189 152:340 153:182 154:3 155:398
156:196 157:323 158:138 159:386 160:311 161:195
162:307 163:156 164:504 165:365 166:531 167:435
168:735 169:149 170:843 171:79 172:1 173:1592
174:610 175:368 176:144 177:160 178:997 180:896
181:23 182:492 183:234 184:344 185:1 186:1282
187:756 188:894 189:934 190:4981 192:5857 193:4998
194:3515 195:3037 196:1213 197:41 198:3528 199:3932
200:5490 201:1471 202:8201 203:8343 204:4156 205:2313
206:2582 207:2734 208:3979 209:3400 210:2596 211:1443
212:2113 213:1777 214:771 215:70 216:4917 217:1672
218:532 219:336 220:1197 221:480 222:312 223:217
End of report
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