Routing Table Report 08:00 +10GMT Wed 01 Feb, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 388289
Prefixes after maximum aggregation: 167312
Deaggregation factor: 2.32
Unique aggregates announced to Internet: 191868
Total ASes present in the Internet Routing Table: 37910
Prefixes per ASN: 10.24
Origin-only ASes present in the Internet Routing Table: 32667
Origin ASes announcing only one prefix: 15525
Transit ASes present in the Internet Routing Table: 5243
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: 25
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 1056
Unregistered ASNs in the Routing Table: 182
Number of 32-bit ASNs allocated by the RIRs: 2238
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4601
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 114
Number of addresses announced to Internet: 2529114368
Equivalent to 150 /8s, 191 /16s and 57 /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: 163150
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92080
Total APNIC prefixes after maximum aggregation: 30177
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 89376
Unique aggregates announced from the APNIC address blocks: 39104
APNIC Region origin ASes present in the Internet Routing Table: 4594
APNIC Prefixes per ASN: 19.45
APNIC Region origin ASes announcing only one prefix: 1258
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: 634953984
Equivalent to 37 /8s, 216 /16s and 161 /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: 146887
Total ARIN prefixes after maximum aggregation: 74868
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119133
Unique aggregates announced from the ARIN address blocks: 49315
ARIN Region origin ASes present in the Internet Routing Table: 14800
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5666
ARIN Region transit ASes present in the Internet Routing Table: 1498
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 804396800
Equivalent to 47 /8s, 242 /16s and 31 /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: 97982
Total RIPE prefixes after maximum aggregation: 52162
RIPE Deaggregation factor: 1.88
Prefixes being announced from the RIPE address blocks: 89889
Unique aggregates announced from the RIPE address blocks: 55977
RIPE Region origin ASes present in the Internet Routing Table: 16283
RIPE Prefixes per ASN: 5.52
RIPE Region origin ASes announcing only one prefix: 8000
RIPE Region transit ASes present in the Internet Routing Table: 2574
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: 498561280
Equivalent to 29 /8s, 183 /16s and 113 /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: 37038
Total LACNIC prefixes after maximum aggregation: 7949
LACNIC Deaggregation factor: 4.66
Prefixes being announced from the LACNIC address blocks: 36788
Unique aggregates announced from the LACNIC address blocks: 19377
LACNIC Region origin ASes present in the Internet Routing Table: 1558
LACNIC Prefixes per ASN: 23.61
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 284
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: 95865600
Equivalent to 5 /8s, 182 /16s and 203 /24s
Percentage of available LACNIC address space announced: 63.5
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: 8992
Total AfriNIC prefixes after maximum aggregation: 2084
AfriNIC Deaggregation factor: 4.31
Prefixes being announced from the AfriNIC address blocks: 7022
Unique aggregates announced from the AfriNIC address blocks: 2145
AfriNIC Region origin ASes present in the Internet Routing Table: 510
AfriNIC Prefixes per ASN: 13.77
AfriNIC Region origin ASes announcing only one prefix: 160
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: 30779136
Equivalent to 1 /8s, 213 /16s and 167 /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 1915 11098 670 Korea Telecom (KIX)
7545 1640 303 87 TPG Internet Pty Ltd
17974 1632 503 35 PT Telekomunikasi Indonesia
4755 1510 385 154 TATA Communications formerly
9829 1167 989 28 National Internet Backbone
9583 1118 81 483 Sify Limited
7552 1107 1062 11 Vietel Corporation
24560 1013 385 167 Bharti Airtel Ltd., Telemedia
4808 983 1947 278 CNCGROUP IP network China169
18101 950 131 156 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 3445 3807 202 BellSouth.net Inc.
7029 3239 1043 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
1785 1867 680 124 PaeTec Communications, Inc.
20115 1624 1552 626 Charter Communications
4323 1608 1078 384 tw telecom holdings, inc.
22773 1524 2910 109 Cox Communications Inc.
30036 1460 257 727 Mediacom Communications Corp
19262 1385 4683 400 Verizon Online LLC
7018 1313 7042 859 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 1628 480 15 Corbina telecom
2118 1241 99 14 EUnet/RELCOM Autonomous Syste
15557 1096 2161 64 NEUF CEGETEL (formerly LDCOM
6830 642 1927 412 UPC Broadband
34984 640 188 171 BILISIM TELEKOM
20940 595 194 468 Akamai Technologies European
8551 574 360 81 Bezeq International
12479 546 641 56 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 1724 321 175 Types of queries are: POCs, o
28573 1624 1085 69 Types of queries are: POCs, o
8151 1315 2976 338 Uninet S.A. de C.V.
7303 1258 756 180 Telecom Argentina S.A.
11172 694 111 75 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 525 434 67 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 1239 958 13 TEDATA
24863 831 155 40 LINKdotNET AS number
6713 485 649 18 Itissalat Al-MAGHRIB
3741 280 939 229 The Internet Solution
15706 238 32 6 Sudatel Internet Exchange Aut
33776 237 13 13 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 3445 3807 202 BellSouth.net Inc.
7029 3239 1043 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
4766 1915 11098 670 Korea Telecom (KIX)
1785 1867 680 124 PaeTec Communications, Inc.
10620 1724 321 175 Types of queries are: POCs, o
7545 1640 303 87 TPG Internet Pty Ltd
17974 1632 503 35 PT Telekomunikasi Indonesia
8402 1628 480 15 Corbina telecom
20115 1624 1552 626 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
7029 3239 3026 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1867 1743 PaeTec Communications, Inc.
8402 1628 1613 Corbina telecom
17974 1632 1597 PT Telekomunikasi Indonesia
28573 1624 1555 Types of queries are: POCs, o
7545 1640 1553 TPG Internet Pty Ltd
10620 1724 1549 Types of queries are: POCs, o
22773 1524 1415 Cox Communications Inc.
4755 1510 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
37.75.0.0/21 34139 CJSC TSI Service
41.222.79.0/24 36938 >>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 /11:80 /12:232
/13:458 /14:816 /15:1461 /16:12093 /17:6153 /18:10212
/19:20356 /20:28017 /21:28802 /22:39030 /23:36464 /24:203506
/25:11 /26:21 /27:20 /28:154 /29:135 /30:66
/31:0 /32:143
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2854 3239 Windstream Communications Inc
6389 2114 3445 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1619 1724 Types of queries are: POCs, o
8402 1607 1628 Corbina telecom
30036 1419 1460 Mediacom Communications Corp
11492 1117 1154 CABLE ONE, INC.
1785 1063 1867 PaeTec Communications, Inc.
15557 1046 1096 NEUF CEGETEL (formerly LDCOM
8452 1042 1239 TEDATA
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:494 2:440 4:14 5:1 6:3 8:378
12:1953 13:1 14:590 15:11 16:3 17:6
20:9 23:121 24:1721 27:1181 31:869 32:60
33:2 34:2 36:8 37:123 38:787 40:114
41:3181 42:92 44:3 46:1268 47:3 49:320
50:518 52:13 54:2 55:6 56:3 57:37
58:911 59:482 60:342 61:1080 62:922 63:1991
64:4119 65:2287 66:4415 67:2049 68:1167 69:3155
70:914 71:432 72:1800 74:2648 75:452 76:321
77:966 78:908 79:490 80:1208 81:874 82:566
83:530 84:583 85:1158 86:749 87:912 88:341
89:1532 90:251 91:4474 92:537 93:1539 94:1332
95:1129 96:409 97:309 98:792 99:38 100:20
101:129 103:709 106:3 107:141 108:132 109:1461
110:685 111:834 112:408 113:526 114:596 115:739
116:851 117:705 118:881 119:1235 120:355 121:647
122:1587 123:1062 124:1304 125:1312 128:500 129:181
130:207 131:586 132:154 133:21 134:224 135:59
136:212 137:149 138:285 139:144 140:462 141:259
142:360 143:394 144:505 145:69 146:482 147:228
148:682 149:271 150:160 151:193 152:444 153:170
154:6 155:412 156:207 157:336 158:156 159:437
160:331 161:221 162:336 163:179 164:528 165:392
166:561 167:456 168:759 169:146 170:834 171:116
172:4 173:1782 174:569 175:414 176:380 177:469
178:1239 180:1172 181:45 182:690 183:276 184:443
185:1 186:1518 187:816 188:979 189:1179 190:5399
192:5938 193:5486 194:4217 195:3390 196:1271 197:180
198:3560 199:4313 200:5606 201:1719 202:8196 203:8506
204:4269 205:2418 206:2653 207:2740 208:4049 209:3539
210:2672 211:1451 212:1973 213:1830 214:853 215:91
216:4957 217:1469 218:542 219:337 220:1222 221:542
222:297 223:258
End of report
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