Routing Table Report 08:00 +10GMT Thu 15 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 380526
Prefixes after maximum aggregation: 165866
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 188770
Total ASes present in the Internet Routing Table: 37692
Prefixes per ASN: 10.10
Origin-only ASes present in the Internet Routing Table: 32467
Origin ASes announcing only one prefix: 15539
Transit ASes present in the Internet Routing Table: 5225
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: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2637
Unregistered ASNs in the Routing Table: 1061
Number of 32-bit ASNs allocated by the RIRs: 2086
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4087
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 99
Number of addresses announced to Internet: 2519058176
Equivalent to 150 /8s, 37 /16s and 199 /24s
Percentage of available address space announced: 68.0
Percentage of allocated address space announced: 68.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.7
Total number of prefixes smaller than registry allocations: 159270
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90582
Total APNIC prefixes after maximum aggregation: 29919
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 88013
Unique aggregates announced from the APNIC address blocks: 38510
APNIC Region origin ASes present in the Internet Routing Table: 4554
APNIC Prefixes per ASN: 19.33
APNIC Region origin ASes announcing only one prefix: 1270
APNIC Region transit ASes present in the Internet Routing Table: 703
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: 631307008
Equivalent to 37 /8s, 160 /16s and 251 /24s
Percentage of available APNIC address space announced: 80.1
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: 145229
Total ARIN prefixes after maximum aggregation: 74368
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 117628
Unique aggregates announced from the ARIN address blocks: 48655
ARIN Region origin ASes present in the Internet Routing Table: 14734
ARIN Prefixes per ASN: 7.98
ARIN Region origin ASes announcing only one prefix: 5658
ARIN Region transit ASes present in the Internet Routing Table: 1502
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: 804529664
Equivalent to 47 /8s, 244 /16s and 38 /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: 95338
Total RIPE prefixes after maximum aggregation: 51546
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 87641
Unique aggregates announced from the RIPE address blocks: 55002
RIPE Region origin ASes present in the Internet Routing Table: 16190
RIPE Prefixes per ASN: 5.41
RIPE Region origin ASes announcing only one prefix: 8011
RIPE Region transit ASes present in the Internet Routing Table: 2565
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: 494185984
Equivalent to 29 /8s, 116 /16s and 174 /24s
Percentage of available RIPE address space announced: 79.6
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: 36156
Total LACNIC prefixes after maximum aggregation: 7893
LACNIC Deaggregation factor: 4.58
Prefixes being announced from the LACNIC address blocks: 35741
Unique aggregates announced from the LACNIC address blocks: 18820
LACNIC Region origin ASes present in the Internet Routing Table: 1540
LACNIC Prefixes per ASN: 23.21
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 270
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: 94663424
Equivalent to 5 /8s, 164 /16s and 115 /24s
Percentage of available LACNIC address space announced: 62.7
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: 8428
Total AfriNIC prefixes after maximum aggregation: 2068
AfriNIC Deaggregation factor: 4.08
Prefixes being announced from the AfriNIC address blocks: 6488
Unique aggregates announced from the AfriNIC address blocks: 2064
AfriNIC Region origin ASes present in the Internet Routing Table: 502
AfriNIC Prefixes per ASN: 12.92
AfriNIC Region origin ASes announcing only one prefix: 157
AfriNIC Region transit ASes present in the Internet Routing Table: 111
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: 30851840
Equivalent to 1 /8s, 214 /16s and 195 /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 1949 11101 664 Korea Telecom (KIX)
17974 1637 503 38 PT Telekomunikasi Indonesia
7545 1627 303 85 TPG Internet Pty Ltd
4755 1500 385 158 TATA Communications formerly
9829 1170 989 28 National Internet Backbone
9583 1099 81 496 Sify Limited
24560 996 385 167 Bharti Airtel Ltd., Telemedia
7552 981 1062 11 Vietel Corporation
18101 964 122 157 Reliance Infocom Ltd Internet
4808 937 1949 270 CNCGROUP IP network China169
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 3481 3814 219 BellSouth.net Inc.
7029 2950 1042 213 Windstream Communications Inc
18566 2094 383 177 Covad Communications Co.
1785 1858 680 121 PaeTec Communications, Inc.
4323 1619 1089 387 tw telecom holdings, inc.
20115 1603 1549 626 Charter Communications
22773 1512 2909 105 Cox Communications Inc.
30036 1458 260 677 Mediacom Communications Corp
19262 1387 4683 401 Verizon Online LLC
7018 1314 7047 864 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 1527 480 15 Corbina telecom
15557 1036 2161 64 NEUF CEGETEL (formerly LDCOM
2118 1033 99 14 EUnet/RELCOM Autonomous Syste
6830 646 1927 412 UPC Broadband
34984 624 132 194 BILISIM TELEKOM
12479 545 630 48 France Telecom Espana SA
20940 542 175 434 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 531 8162 397 Deutsche Telekom AG
3292 481 2106 408 TDC Data Networks
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 1717 318 155 Types of queries are: POCs, o
28573 1563 1063 75 Types of queries are: POCs, o
8151 1314 2966 340 Uninet S.A. de C.V.
7303 1240 751 175 Telecom Argentina S.A.
27947 607 73 93 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 550 237 89 Types of queries are: POCs, o
6503 543 434 69 Axtel, S.A.B. de C.V.
11172 529 102 96 Alestra, S. de R.L. 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 963 958 13 TEDATA
24863 785 146 33 LINKdotNET AS number
3741 281 939 230 The Internet Solution
6713 243 647 17 Itissalat Al-MAGHRIB
15706 242 32 6 Sudatel Internet Exchange Aut
33776 236 13 10 Starcomms Nigeria Limited
29571 217 17 13 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 3481 3814 219 BellSouth.net Inc.
7029 2950 1042 213 Windstream Communications Inc
18566 2094 383 177 Covad Communications Co.
4766 1949 11101 664 Korea Telecom (KIX)
1785 1858 680 121 PaeTec Communications, Inc.
10620 1717 318 155 Types of queries are: POCs, o
17974 1637 503 38 PT Telekomunikasi Indonesia
7545 1627 303 85 TPG Internet Pty Ltd
4323 1619 1089 387 tw telecom holdings, inc.
20115 1603 1549 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 2950 2737 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1858 1737 PaeTec Communications, Inc.
17974 1637 1599 PT Telekomunikasi Indonesia
10620 1717 1562 Types of queries are: POCs, o
7545 1627 1542 TPG Internet Pty Ltd
8402 1527 1512 Corbina telecom
28573 1563 1488 Types of queries are: POCs, o
22773 1512 1407 Cox Communications Inc.
4755 1500 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
37.1.224.0/21 51059 Brightbox Systems Ltd
37.7.0.0/16 8374 Polkomtel S.A.
37.8.0.0/18 15975 Palnet Communications Ltd. AS
37.8.128.0/20 20875 HT d.o.o. Mostar
37.8.144.0/20 42038 VladLink LTD AS
37.9.0.0/19 44050 RIPE Network Coordination Cen
37.9.48.0/20 44050 RIPE Network Coordination Cen
37.9.168.0/21 51013 Websupport s.r.o.
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>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 /12:238
/13:465 /14:811 /15:1440 /16:12005 /17:6089 /18:10133
/19:20211 /20:27778 /21:28068 /22:37940 /23:35477 /24:199185
/25:11 /26:21 /27:20 /28:154 /29:136 /30:67
/31:0 /32:137
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2562 2950 Windstream Communications Inc
6389 2123 3481 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1612 1717 Types of queries are: POCs, o
8402 1502 1527 Corbina telecom
30036 1418 1458 Mediacom Communications Corp
11492 1088 1125 CABLE ONE, INC.
1785 1059 1858 PaeTec Communications, Inc.
7011 1051 1168 Frontier Communications of Am
15557 992 1036 NEUF CEGETEL (formerly LDCOM
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:449 2:458 4:15 5:1 6:3 8:360
12:1942 13:1 14:555 15:11 16:3 17:7
20:9 23:74 24:1686 27:1111 31:729 32:62
33:2 34:2 36:4 38:768 40:114 41:2937
42:78 44:3 46:1139 47:3 49:272 50:462
52:13 55:5 56:2 57:42 58:871 59:481
60:339 61:1067 62:936 63:1966 64:4075 65:2300
66:4358 67:2004 68:1182 69:3127 70:914 71:378
72:1773 74:2637 75:432 76:320 77:939 78:874
79:440 80:1171 81:849 82:531 83:529 84:568
85:1166 86:738 87:899 88:342 89:1584 90:248
91:4353 92:541 93:1528 94:1317 95:1099 96:392
97:286 98:775 99:38 101:125 103:540 106:10
107:112 108:98 109:1398 110:670 111:815 112:366
113:477 114:603 115:687 116:863 117:695 118:882
119:1256 120:340 121:655 122:1553 123:1022 124:1294
125:1294 128:287 129:180 130:160 131:570 132:154
133:21 134:218 135:54 136:211 137:147 138:285
139:121 140:457 141:254 142:365 143:389 144:485
145:66 146:470 147:223 148:615 149:271 150:157
151:192 152:443 153:171 154:6 155:397 156:207
157:333 158:155 159:432 160:340 161:204 162:359
163:174 164:516 165:390 166:542 167:457 168:813
169:145 170:826 171:93 172:4 173:1792 174:596
175:405 176:349 177:398 178:1140 180:1199 181:38
182:659 183:259 184:403 185:1 186:1403 187:761
188:950 189:1183 190:5249 192:5918 193:5128 194:4290
195:3368 196:1267 197:174 198:3570 199:4181 200:5439
201:1711 202:8251 203:8412 204:4250 205:2388 206:2581
207:2772 208:4003 209:3538 210:2667 211:1440 212:1989
213:1800 214:817 215:95 216:4894 217:1494 218:561
219:331 220:1215 221:507 222:297 223:249
End of report
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