Routing Table Report 08:00 +10GMT Fri 13 Jan, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 384684
Prefixes after maximum aggregation: 166697
Deaggregation factor: 2.31
Unique aggregates announced to Internet: 190819
Total ASes present in the Internet Routing Table: 37822
Prefixes per ASN: 10.17
Origin-only ASes present in the Internet Routing Table: 32584
Origin ASes announcing only one prefix: 15529
Transit ASes present in the Internet Routing Table: 5238
Transit-only ASes present in the Internet Routing Table: 125
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2837
Unregistered ASNs in the Routing Table: 1121
Number of 32-bit ASNs allocated by the RIRs: 2172
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4439
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 120
Number of addresses announced to Internet: 2525732096
Equivalent to 150 /8s, 139 /16s and 157 /24s
Percentage of available address space announced: 68.1
Percentage of allocated address space announced: 68.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.9
Total number of prefixes smaller than registry allocations: 161270
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91701
Total APNIC prefixes after maximum aggregation: 30046
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 89051
Unique aggregates announced from the APNIC address blocks: 38937
APNIC Region origin ASes present in the Internet Routing Table: 4581
APNIC Prefixes per ASN: 19.44
APNIC Region origin ASes announcing only one prefix: 1261
APNIC Region transit ASes present in the Internet Routing Table: 705
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 633243648
Equivalent to 37 /8s, 190 /16s and 136 /24s
Percentage of available APNIC address space announced: 80.3
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: 146194
Total ARIN prefixes after maximum aggregation: 74633
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118453
Unique aggregates announced from the ARIN address blocks: 49059
ARIN Region origin ASes present in the Internet Routing Table: 14779
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5665
ARIN Region transit ASes present in the Internet Routing Table: 1503
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: 804809984
Equivalent to 47 /8s, 248 /16s and 109 /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: 96704
Total RIPE prefixes after maximum aggregation: 51941
RIPE Deaggregation factor: 1.86
Prefixes being announced from the RIPE address blocks: 88630
Unique aggregates announced from the RIPE address blocks: 55624
RIPE Region origin ASes present in the Internet Routing Table: 16236
RIPE Prefixes per ASN: 5.46
RIPE Region origin ASes announcing only one prefix: 7992
RIPE Region transit ASes present in the Internet Routing Table: 2568
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 24
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 497179904
Equivalent to 29 /8s, 162 /16s and 93 /24s
Percentage of available RIPE address space announced: 80.1
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: 36479
Total LACNIC prefixes after maximum aggregation: 7943
LACNIC Deaggregation factor: 4.59
Prefixes being announced from the LACNIC address blocks: 36237
Unique aggregates announced from the LACNIC address blocks: 19190
LACNIC Region origin ASes present in the Internet Routing Table: 1551
LACNIC Prefixes per ASN: 23.36
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 278
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 95346176
Equivalent to 5 /8s, 174 /16s and 222 /24s
Percentage of available LACNIC address space announced: 63.1
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: 8461
Total AfriNIC prefixes after maximum aggregation: 2062
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 6510
Unique aggregates announced from the AfriNIC address blocks: 2066
AfriNIC Region origin ASes present in the Internet Routing Table: 509
AfriNIC Prefixes per ASN: 12.79
AfriNIC Region origin ASes announcing only one prefix: 162
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: 30812928
Equivalent to 1 /8s, 214 /16s and 43 /24s
Percentage of available AfriNIC address space announced: 45.9
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 1914 11097 661 Korea Telecom (KIX)
17974 1640 503 37 PT Telekomunikasi Indonesia
7545 1633 303 86 TPG Internet Pty Ltd
4755 1498 385 156 TATA Communications formerly
9829 1163 989 28 National Internet Backbone
9583 1118 81 492 Sify Limited
7552 1103 1062 11 Vietel Corporation
24560 1010 384 167 Bharti Airtel Ltd., Telemedia
4808 982 1947 277 CNCGROUP IP network China169
18101 978 131 156 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 3460 3807 212 BellSouth.net Inc.
7029 3256 1042 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
1785 1867 680 122 PaeTec Communications, Inc.
20115 1617 1552 619 Charter Communications
4323 1605 1078 383 tw telecom holdings, inc.
22773 1513 2909 107 Cox Communications Inc.
30036 1487 263 694 Mediacom Communications Corp
19262 1387 4683 401 Verizon Online LLC
7018 1309 7046 860 AT&T Services, Inc.
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 1522 480 15 Corbina telecom
15557 1096 2161 64 NEUF CEGETEL (formerly LDCOM
2118 927 99 14 EUnet/RELCOM Autonomous Syste
6830 644 1928 413 UPC Broadband
34984 637 188 173 BILISIM TELEKOM
20940 559 181 449 Akamai Technologies European
8551 551 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
12479 541 636 53 France Telecom Espana SA
3320 517 8157 393 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 1729 320 158 Types of queries are: POCs, o
28573 1570 1065 77 Types of queries are: POCs, o
8151 1317 2978 335 Uninet S.A. de C.V.
7303 1256 756 179 Telecom Argentina S.A.
27947 612 73 95 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
7738 551 1050 31 Telecomunicacoes da Bahia S.A
3816 550 237 91 Types of queries are: POCs, o
11172 535 102 101 Alestra, S. de R.L. de C.V.
6503 529 434 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 1029 958 13 TEDATA
24863 792 146 33 LINKdotNET AS number
3741 280 939 229 The Internet Solution
6713 250 649 18 Itissalat Al-MAGHRIB
33776 240 13 8 Starcomms Nigeria Limited
15706 239 32 6 Sudatel Internet Exchange Aut
29571 216 17 12 Ci Telecom Autonomous system
12258 196 28 61 Vodacom Internet Company
24835 188 80 8 RAYA Telecom - Egypt
16637 157 664 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 3460 3807 212 BellSouth.net Inc.
7029 3256 1042 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
4766 1914 11097 661 Korea Telecom (KIX)
1785 1867 680 122 PaeTec Communications, Inc.
10620 1729 320 158 Types of queries are: POCs, o
17974 1640 503 37 PT Telekomunikasi Indonesia
7545 1633 303 86 TPG Internet Pty Ltd
20115 1617 1552 619 Charter Communications
4323 1605 1078 383 tw telecom holdings, inc.
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 3256 3043 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1867 1745 PaeTec Communications, Inc.
17974 1640 1603 PT Telekomunikasi Indonesia
10620 1729 1571 Types of queries are: POCs, o
7545 1633 1547 TPG Internet Pty Ltd
8402 1522 1507 Corbina telecom
28573 1570 1493 Types of queries are: POCs, o
22773 1513 1406 Cox Communications Inc.
4755 1498 1342 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
37.46.0.0/21 21371 Interconnect Exchange Europe
37.46.16.0/24 702 >>UNKNOWN<<
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 /12:237
/13:465 /14:815 /15:1455 /16:12062 /17:6130 /18:10147
/19:20306 /20:27974 /21:28447 /22:38581 /23:35831 /24:201546
/25:11 /26:21 /27:20 /28:154 /29:135 /30:67
/31:0 /32:140
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2860 3256 Windstream Communications Inc
6389 2115 3460 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1624 1729 Types of queries are: POCs, o
8402 1501 1522 Corbina telecom
30036 1446 1487 Mediacom Communications Corp
11492 1115 1152 CABLE ONE, INC.
1785 1066 1867 PaeTec Communications, Inc.
15557 1046 1096 NEUF CEGETEL (formerly LDCOM
7011 1042 1159 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:489 2:434 4:15 5:1 6:3 8:369
12:1951 13:1 14:579 15:11 16:3 17:6
20:9 23:95 24:1706 27:1171 31:858 32:62
33:2 34:2 36:8 37:86 38:787 40:114
41:2905 42:85 44:3 46:1214 47:3 49:317
50:505 52:13 55:6 56:2 57:37 58:900
59:482 60:342 61:1078 62:951 63:1961 64:4092
65:2294 66:4363 67:2003 68:1154 69:3146 70:916
71:427 72:1803 74:2648 75:446 76:320 77:938
78:887 79:490 80:1188 81:862 82:543 83:530
84:587 85:1154 86:753 87:910 88:338 89:1588
90:261 91:4415 92:535 93:1521 94:1353 95:1046
96:389 97:296 98:801 99:38 100:18 101:126
103:632 106:9 107:131 108:109 109:1434 110:685
111:834 112:402 113:518 114:609 115:735 116:858
117:706 118:902 119:1222 120:358 121:648 122:1586
123:1047 124:1298 125:1306 128:469 129:184 130:196
131:585 132:154 133:21 134:217 135:58 136:211
137:148 138:288 139:143 140:465 141:260 142:362
143:389 144:502 145:68 146:479 147:224 148:614
149:277 150:159 151:193 152:445 153:170 154:6
155:408 156:207 157:336 158:155 159:438 160:319
161:205 162:334 163:178 164:525 165:393 166:562
167:456 168:827 169:146 170:827 171:102 172:4
173:1779 174:584 175:418 176:342 177:457 178:1178
180:1220 181:43 182:675 183:262 184:431 185:1
186:1478 187:828 188:1035 189:1160 190:5309 192:5946
193:5465 194:3949 195:3303 196:1265 197:168 198:3582
199:4255 200:5464 201:1698 202:8223 203:8509 204:4267
205:2409 206:2644 207:2735 208:4009 209:3538 210:2677
211:1454 212:1986 213:1822 214:826 215:93 216:4910
217:1474 218:551 219:336 220:1215 221:541 222:297
223:252
End of report
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