Routing Table Report 08:00 +10GMT Sat 28 Jan, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 387212
Prefixes after maximum aggregation: 167132
Deaggregation factor: 2.32
Unique aggregates announced to Internet: 191503
Total ASes present in the Internet Routing Table: 37893
Prefixes per ASN: 10.22
Origin-only ASes present in the Internet Routing Table: 32635
Origin ASes announcing only one prefix: 15532
Transit ASes present in the Internet Routing Table: 5258
Transit-only ASes present in the Internet Routing Table: 121
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 1065
Unregistered ASNs in the Routing Table: 184
Number of 32-bit ASNs allocated by the RIRs: 2225
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4582
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 125
Number of addresses announced to Internet: 2529312768
Equivalent to 150 /8s, 194 /16s and 64 /24s
Percentage of available address space announced: 68.2
Percentage of allocated address space announced: 68.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 162528
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91839
Total APNIC prefixes after maximum aggregation: 30107
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 89119
Unique aggregates announced from the APNIC address blocks: 39074
APNIC Region origin ASes present in the Internet Routing Table: 4577
APNIC Prefixes per ASN: 19.47
APNIC Region origin ASes announcing only one prefix: 1254
APNIC Region transit ASes present in the Internet Routing Table: 702
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 634637568
Equivalent to 37 /8s, 211 /16s and 205 /24s
Percentage of available APNIC address space announced: 80.5
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: 146231
Total ARIN prefixes after maximum aggregation: 74761
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118595
Unique aggregates announced from the ARIN address blocks: 49165
ARIN Region origin ASes present in the Internet Routing Table: 14803
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5673
ARIN Region transit ASes present in the Internet Routing Table: 1499
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 805116160
Equivalent to 47 /8s, 253 /16s and 25 /24s
Percentage of available ARIN address space announced: 64.0
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: 97878
Total RIPE prefixes after maximum aggregation: 52156
RIPE Deaggregation factor: 1.88
Prefixes being announced from the RIPE address blocks: 89789
Unique aggregates announced from the RIPE address blocks: 55882
RIPE Region origin ASes present in the Internet Routing Table: 16289
RIPE Prefixes per ASN: 5.51
RIPE Region origin ASes announcing only one prefix: 8007
RIPE Region transit ASes present in the Internet Routing Table: 2586
Average RIPE Region AS path length visible: 3.5
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: 498518272
Equivalent to 29 /8s, 182 /16s and 201 /24s
Percentage of available RIPE address space announced: 80.3
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: 36959
Total LACNIC prefixes after maximum aggregation: 7950
LACNIC Deaggregation factor: 4.65
Prefixes being announced from the LACNIC address blocks: 36698
Unique aggregates announced from the LACNIC address blocks: 19310
LACNIC Region origin ASes present in the Internet Routing Table: 1556
LACNIC Prefixes per ASN: 23.58
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 282
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 95616000
Equivalent to 5 /8s, 178 /16s and 252 /24s
Percentage of available LACNIC address space announced: 63.3
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: 9008
Total AfriNIC prefixes after maximum aggregation: 2087
AfriNIC Deaggregation factor: 4.32
Prefixes being announced from the AfriNIC address blocks: 7044
Unique aggregates announced from the AfriNIC address blocks: 2151
AfriNIC Region origin ASes present in the Internet Routing Table: 506
AfriNIC Prefixes per ASN: 13.92
AfriNIC Region origin ASes announcing only one prefix: 158
AfriNIC Region transit ASes present in the Internet Routing Table: 117
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: 30837248
Equivalent to 1 /8s, 214 /16s and 138 /24s
Percentage of available AfriNIC address space announced: 46.0
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 1909 11098 667 Korea Telecom (KIX)
7545 1640 303 87 TPG Internet Pty Ltd
17974 1634 503 35 PT Telekomunikasi Indonesia
4755 1513 385 157 TATA Communications formerly
9829 1167 989 28 National Internet Backbone
9583 1119 81 483 Sify Limited
7552 1117 1062 11 Vietel Corporation
24560 1015 385 167 Bharti Airtel Ltd., Telemedia
4808 980 1947 277 CNCGROUP IP network China169
18101 946 130 154 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 3446 3807 202 BellSouth.net Inc.
7029 3259 1043 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
1785 1866 680 122 PaeTec Communications, Inc.
20115 1623 1552 628 Charter Communications
4323 1607 1078 384 tw telecom holdings, inc.
22773 1520 2910 109 Cox Communications Inc.
30036 1452 254 728 Mediacom Communications Corp
7018 1311 7042 858 AT&T Services, Inc.
2386 1193 491 865 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
8402 1642 480 15 Corbina telecom
2118 1241 99 14 EUnet/RELCOM Autonomous Syste
15557 1095 2161 64 NEUF CEGETEL (formerly LDCOM
6830 642 1927 412 UPC Broadband
34984 640 188 171 BILISIM TELEKOM
20940 589 192 465 Akamai Technologies European
8551 574 360 81 Bezeq International
12479 545 636 53 France Telecom Espana SA
9116 541 326 32 Goldenlines main autonomous s
3320 531 8162 397 Deutsche Telekom AG
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 1723 321 175 Types of queries are: POCs, o
28573 1631 1069 71 Types of queries are: POCs, o
8151 1318 2972 340 Uninet S.A. de C.V.
7303 1256 756 179 Telecom Argentina S.A.
11172 689 111 73 Alestra, S. de R.L. de C.V.
27947 627 73 99 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
3816 552 238 91 Types of queries are: POCs, o
7738 550 1050 31 Telecomunicacoes da Bahia S.A
6503 528 434 69 Axtel, S.A.B. de C.V.
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
8452 1207 958 13 TEDATA
24863 830 155 41 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 280 939 229 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
33776 232 12 18 Starcomms Nigeria Limited
29571 214 17 12 Ci Telecom Autonomous system
12258 197 28 62 Vodacom Internet Company
24835 190 80 8 RAYA Telecom - Egypt
16637 160 664 85 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 3446 3807 202 BellSouth.net Inc.
7029 3259 1043 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
4766 1909 11098 667 Korea Telecom (KIX)
1785 1866 680 122 PaeTec Communications, Inc.
10620 1723 321 175 Types of queries are: POCs, o
8402 1642 480 15 Corbina telecom
7545 1640 303 87 TPG Internet Pty Ltd
17974 1634 503 35 PT Telekomunikasi Indonesia
28573 1631 1069 71 Types of queries are: POCs, o
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3259 3046 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1866 1744 PaeTec Communications, Inc.
8402 1642 1627 Corbina telecom
17974 1634 1599 PT Telekomunikasi Indonesia
28573 1631 1560 Types of queries are: POCs, o
7545 1640 1553 TPG Internet Pty Ltd
10620 1723 1548 Types of queries are: POCs, o
22773 1520 1411 Cox Communications Inc.
4755 1513 1356 TATA Communications formerly
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.
25639 UNALLOCATED 12.41.169.0/24 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
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
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 0 *
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
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
37.72.0.0/19 29119 ServiHosting Networks S.L.
37.72.48.0/20 23456 32-bit ASN transition
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 /11:80 /12:233
/13:455 /14:815 /15:1459 /16:12093 /17:6143 /18:10188
/19:20312 /20:28001 /21:28765 /22:38969 /23:36476 /24:202618
/25:11 /26:21 /27:19 /28:153 /29:135 /30:65
/31:0 /32:142
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2864 3259 Windstream Communications Inc
6389 2115 3446 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
8402 1621 1642 Corbina telecom
10620 1618 1723 Types of queries are: POCs, o
30036 1411 1452 Mediacom Communications Corp
11492 1117 1154 CABLE ONE, INC.
1785 1064 1866 PaeTec Communications, Inc.
15557 1046 1095 NEUF CEGETEL (formerly LDCOM
7011 1033 1149 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:509 2:458 4:14 5:1 6:3 8:377
12:1954 13:1 14:587 15:11 16:3 17:6
20:9 23:121 24:1718 27:1180 31:859 32:60
33:2 34:2 36:8 37:106 38:789 40:114
41:3182 42:88 44:3 46:1263 47:3 49:319
50:515 52:13 54:1 55:5 56:3 57:37
58:910 59:482 60:342 61:1078 62:923 63:1989
64:4103 65:2276 66:4394 67:2034 68:1167 69:3150
70:881 71:320 72:1752 74:2584 75:446 76:321
77:962 78:908 79:509 80:1209 81:873 82:566
83:535 84:583 85:1152 86:755 87:913 88:342
89:1543 90:258 91:4474 92:537 93:1547 94:1320
95:1098 96:361 97:306 98:793 99:38 100:20
101:130 103:676 106:3 107:139 108:113 109:1460
110:690 111:826 112:412 113:525 114:579 115:713
116:848 117:693 118:890 119:1228 120:353 121:651
122:1556 123:1052 124:1302 125:1311 128:494 129:182
130:205 131:588 132:154 133:21 134:224 135:59
136:211 137:150 138:290 139:144 140:462 141:229
142:360 143:396 144:505 145:68 146:479 147:227
148:673 149:270 150:159 151:171 152:444 153:170
154:6 155:412 156:207 157:336 158:154 159:437
160:332 161:218 162:336 163:178 164:528 165:393
166:560 167:458 168:762 169:146 170:833 171:111
172:4 173:1779 174:570 175:414 176:386 177:456
178:1234 180:1179 181:43 182:658 183:276 184:442
185:1 186:1520 187:835 188:975 189:1181 190:5342
192:5935 193:5486 194:4218 195:3391 196:1272 197:172
198:3532 199:4291 200:5599 201:1718 202:8147 203:8463
204:4268 205:2413 206:2662 207:2736 208:4034 209:3529
210:2677 211:1448 212:1992 213:1829 214:843 215:96
216:4948 217:1475 218:543 219:337 220:1211 221:538
222:294 223:256
End of report
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