BGP Routing: 2012-01-29

The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Saturday, February 4, 2012

[bgp-stats] Routing Table Report - London view

* BGP Routing Table Analysis Reports *
Routing Table Report 08:00 +10GMT Sun 05 Feb, 2012

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/

Analysis Summary
----------------

BGP routing table entries examined: 389340
Prefixes after maximum aggregation: 167425
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 191797
Total ASes present in the Internet Routing Table: 37921
Prefixes per ASN: 10.27
Origin-only ASes present in the Internet Routing Table: 32666
Origin ASes announcing only one prefix: 15527
Transit ASes present in the Internet Routing Table: 5255
Transit-only ASes present in the Internet Routing Table: 128
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: 1057
Unregistered ASNs in the Routing Table: 182
Number of 32-bit ASNs allocated by the RIRs: 2265
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4686
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 119
Number of addresses announced to Internet: 2528784128
Equivalent to 150 /8s, 186 /16s and 47 /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: 163815

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 92099
Total APNIC prefixes after maximum aggregation: 30182
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 89402
Unique aggregates announced from the APNIC address blocks: 39112
APNIC Region origin ASes present in the Internet Routing Table: 4589
APNIC Prefixes per ASN: 19.48
APNIC Region origin ASes announcing only one prefix: 1254
APNIC Region transit ASes present in the Internet Routing Table: 700
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: 635595008
Equivalent to 37 /8s, 226 /16s and 105 /24s
Percentage of available APNIC address space announced: 80.6

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: 146855
Total ARIN prefixes after maximum aggregation: 74906
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119106
Unique aggregates announced from the ARIN address blocks: 49264
ARIN Region origin ASes present in the Internet Routing Table: 14817
ARIN Prefixes per ASN: 8.04
ARIN Region origin ASes announcing only one prefix: 5675
ARIN Region transit ASes present in the Internet Routing Table: 1500
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: 804335872
Equivalent to 47 /8s, 241 /16s and 49 /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: 98365
Total RIPE prefixes after maximum aggregation: 52253
RIPE Deaggregation factor: 1.88
Prefixes being announced from the RIPE address blocks: 90228
Unique aggregates announced from the RIPE address blocks: 55879
RIPE Region origin ASes present in the Internet Routing Table: 16282
RIPE Prefixes per ASN: 5.54
RIPE Region origin ASes announcing only one prefix: 7999
RIPE Region transit ASes present in the Internet Routing Table: 2582
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: 498640384
Equivalent to 29 /8s, 184 /16s and 166 /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: 37667
Total LACNIC prefixes after maximum aggregation: 7933
LACNIC Deaggregation factor: 4.75
Prefixes being announced from the LACNIC address blocks: 37442
Unique aggregates announced from the LACNIC address blocks: 19443
LACNIC Region origin ASes present in the Internet Routing Table: 1556
LACNIC Prefixes per ASN: 24.06
LACNIC Region origin ASes announcing only one prefix: 440
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: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 95919616
Equivalent to 5 /8s, 183 /16s and 158 /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: 8966
Total AfriNIC prefixes after maximum aggregation: 2079
AfriNIC Deaggregation factor: 4.31
Prefixes being announced from the AfriNIC address blocks: 7000
Unique aggregates announced from the AfriNIC address blocks: 2141
AfriNIC Region origin ASes present in the Internet Routing Table: 507
AfriNIC Prefixes per ASN: 13.81
AfriNIC Region origin ASes announcing only one prefix: 159
AfriNIC Region transit ASes present in the Internet Routing Table: 116
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: 30833408
Equivalent to 1 /8s, 214 /16s and 123 /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 1912 11098 670 Korea Telecom (KIX)
7545 1640 303 86 TPG Internet Pty Ltd
17974 1639 503 36 PT Telekomunikasi Indonesia
4755 1515 385 157 TATA Communications formerly
9829 1169 989 28 National Internet Backbone
9583 1123 82 483 Sify Limited
7552 1095 1062 11 Vietel Corporation
24560 1014 385 167 Bharti Airtel Ltd., Telemedia
4808 982 1947 278 CNCGROUP IP network China169
18101 952 131 156 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 3444 3807 202 BellSouth.net Inc.
7029 3258 1043 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
1785 1868 680 124 PaeTec Communications, Inc.
20115 1626 1552 627 Charter Communications
4323 1608 1078 384 tw telecom holdings, inc.
22773 1498 2910 109 Cox Communications Inc.
30036 1428 253 750 Mediacom Communications Corp
19262 1384 4683 400 Verizon Online LLC
7018 1312 7040 857 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 1602 480 15 Corbina telecom
2118 1391 99 14 EUnet/RELCOM Autonomous Syste
15557 1096 2161 64 NEUF CEGETEL (formerly LDCOM
34984 644 188 171 BILISIM TELEKOM
6830 642 1927 412 UPC Broadband
20940 596 194 469 Akamai Technologies European
8551 576 360 81 Bezeq International
12479 557 642 54 France Telecom Espana SA
9116 541 326 32 Goldenlines main autonomous s
31148 536 37 9 FreeNet ISP

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 1735 323 170 Types of queries are: POCs, o
28573 1630 1085 69 Types of queries are: POCs, o
8151 1316 2976 338 Uninet S.A. de C.V.
7303 1260 757 180 Telecom Argentina S.A.
26615 814 616 33 Tim Celular S.A.
11172 699 111 76 Alestra, S. de R.L. de C.V.
27947 627 73 99 Telconet S.A
22047 581 322 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

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 1214 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
12258 197 28 62 Vodacom Internet Company
24835 193 80 8 RAYA Telecom - Egypt
29571 189 17 11 Ci Telecom Autonomous system
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 3444 3807 202 BellSouth.net Inc.
7029 3258 1043 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
4766 1912 11098 670 Korea Telecom (KIX)
1785 1868 680 124 PaeTec Communications, Inc.
10620 1735 323 170 Types of queries are: POCs, o
7545 1640 303 86 TPG Internet Pty Ltd
17974 1639 503 36 PT Telekomunikasi Indonesia
28573 1630 1085 69 Types of queries are: POCs, o
20115 1626 1552 627 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 3258 3045 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1868 1744 PaeTec Communications, Inc.
17974 1639 1603 PT Telekomunikasi Indonesia
8402 1602 1587 Corbina telecom
10620 1735 1565 Types of queries are: POCs, o
28573 1630 1561 Types of queries are: POCs, o
7545 1640 1554 TPG Internet Pty Ltd
22773 1498 1389 Cox Communications Inc.
2118 1391 1377 EUnet/RELCOM Autonomous Syste

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
23.26.0.0/16 11798 Ace Data Centers, Inc.
37.77.176.0/21 16082 Spitfire Digital Networks Aut

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 /12:231
/13:458 /14:815 /15:1463 /16:12100 /17:6159 /18:10228
/19:20373 /20:28062 /21:28799 /22:39024 /23:36545 /24:204402
/25:11 /26:21 /27:19 /28:153 /29:133 /30:65
/31:0 /32:140

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
7029 2870 3258 Windstream Communications Inc
6389 2113 3444 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1629 1735 Types of queries are: POCs, o
8402 1581 1602 Corbina telecom
30036 1386 1428 Mediacom Communications Corp
11492 1117 1154 CABLE ONE, INC.
1785 1064 1868 PaeTec Communications, Inc.
15557 1046 1096 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)
----------------------------------------------

1:496 2:450 4:14 5:1 6:3 8:379
12:1952 13:1 14:584 15:11 16:3 17:6
20:9 23:127 24:1721 27:1181 31:893 32:60
33:2 34:2 36:9 37:162 38:783 40:114
41:3164 42:91 44:3 46:1278 47:3 49:322
50:514 52:13 54:2 55:7 56:3 57:37
58:915 59:484 60:341 61:1085 62:928 63:1996
64:4121 65:2284 66:4407 67:2045 68:1166 69:3147
70:914 71:410 72:1794 74:2637 75:452 76:323
77:963 78:898 79:505 80:1221 81:865 82:567
83:537 84:582 85:1157 86:752 87:907 88:341
89:1539 90:253 91:4443 92:540 93:1541 94:1339
95:1094 96:412 97:310 98:804 99:38 100:20
101:139 103:727 106:3 107:143 108:145 109:1465
110:685 111:839 112:391 113:523 114:596 115:740
116:849 117:705 118:903 119:1236 120:354 121:647
122:1572 123:1069 124:1302 125:1312 128:494 129:181
130:208 131:586 132:163 133:21 134:221 135:59
136:212 137:150 138:285 139:144 140:461 141:260
142:360 143:395 144:510 145:70 146:479 147:228
148:702 149:273 150:161 151:196 152:444 153:170
154:6 155:406 156:208 157:335 158:156 159:440
160:328 161:226 162:338 163:178 164:528 165:395
166:556 167:456 168:760 169:146 170:829 171:108
172:2 173:1751 174:593 175:414 176:464 177:475
178:1247 180:1175 181:64 182:692 183:277 184:430
185:1 186:1959 187:849 188:1042 189:1177 190:5436
192:5932 193:5527 194:4328 195:3386 196:1274 197:180
198:3566 199:4324 200:5603 201:1730 202:8180 203:8498
204:4266 205:2423 206:2659 207:2745 208:4047 209:3532
210:2674 211:1446 212:1992 213:1832 214:848 215:92
216:4952 217:1467 218:539 219:337 220:1222 221:542
222:297 223:260

End of report
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[bgp-stats] Routing Table Report - Japan view

* BGP Routing Table Analysis Reports *
Routing Table Report 04:00 +10GMT Sun 05 Feb, 2012

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/

Analysis Summary
----------------

BGP routing table entries examined: 395714
Prefixes after maximum aggregation: 169415
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 191801
Total ASes present in the Internet Routing Table: 39996
Prefixes per ASN: 9.89
Origin-only ASes present in the Internet Routing Table: 32683
Origin ASes announcing only one prefix: 15523
Transit ASes present in the Internet Routing Table: 5394
Transit-only ASes present in the Internet Routing Table: 141
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 314
Unregistered ASNs in the Routing Table: 119
Number of 32-bit ASNs allocated by the RIRs: 2265
Number of 32-bit ASNs visible in the Routing Table: 1919
Prefixes from 32-bit ASNs in the Routing Table: 4660
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 117
Number of addresses announced to Internet: 2512339664
Equivalent to 149 /8s, 191 /16s and 66 /24s
Percentage of available address space announced: 67.8
Percentage of allocated address space announced: 67.8
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: 167756

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 97677
Total APNIC prefixes after maximum aggregation: 31535
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 93980
Unique aggregates announced from the APNIC address blocks: 39058
APNIC Region origin ASes present in the Internet Routing Table: 4648
APNIC Prefixes per ASN: 20.22
APNIC Region origin ASes announcing only one prefix: 1239
APNIC Region transit ASes present in the Internet Routing Table: 732
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 139
Number of APNIC addresses announced to Internet: 635839840
Equivalent to 37 /8s, 230 /16s and 37 /24s
Percentage of available APNIC address space announced: 80.6

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 148067
Total ARIN prefixes after maximum aggregation: 75387
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 120068
Unique aggregates announced from the ARIN address blocks: 49282
ARIN Region origin ASes present in the Internet Routing Table: 14882
ARIN Prefixes per ASN: 8.07
ARIN Region origin ASes announcing only one prefix: 5686
ARIN Region transit ASes present in the Internet Routing Table: 1577
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 15
Number of ARIN addresses announced to Internet: 804282816
Equivalent to 47 /8s, 240 /16s and 97 /24s
Percentage of available ARIN address space announced: 63.9

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 97967
Total RIPE prefixes after maximum aggregation: 52281
RIPE Deaggregation factor: 1.87
Prefixes being announced from the RIPE address blocks: 89835
Unique aggregates announced from the RIPE address blocks: 55878
RIPE Region origin ASes present in the Internet Routing Table: 16286
RIPE Prefixes per ASN: 5.52
RIPE Region origin ASes announcing only one prefix: 7995
RIPE Region transit ASes present in the Internet Routing Table: 2596
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1322
Number of RIPE addresses announced to Internet: 498632584
Equivalent to 29 /8s, 184 /16s and 135 /24s
Percentage of available RIPE address space announced: 80.3

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 38167
Total LACNIC prefixes after maximum aggregation: 8055
LACNIC Deaggregation factor: 4.74
Prefixes being announced from the LACNIC address blocks: 37787
Unique aggregates announced from the LACNIC address blocks: 19435
LACNIC Region origin ASes present in the Internet Routing Table: 1568
LACNIC Prefixes per ASN: 24.10
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 295
Average LACNIC Region AS path length visible: 4.3
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 439
Number of LACNIC addresses announced to Internet: 95963784
Equivalent to 5 /8s, 184 /16s and 74 /24s
Percentage of available LACNIC address space announced: 63.6

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: 9014
Total AfriNIC prefixes after maximum aggregation: 2085
AfriNIC Deaggregation factor: 4.32
Prefixes being announced from the AfriNIC address blocks: 7024
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: 163
AfriNIC Region transit ASes present in the Internet Routing Table: 116
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 30834176
Equivalent to 1 /8s, 214 /16s and 126 /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 2474 11102 982 Korea Telecom (KIX)
17974 1723 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1643 303 86 TPG Internet Pty Ltd
4755 1528 385 155 TATA Communications formerly
7552 1408 1064 7 Vietel Corporation
9829 1169 989 28 BSNL National Internet Backbo
9583 1123 82 483 Sify Limited
4808 1102 2051 313 CNCGROUP IP network: China169
24560 1014 385 167 Bharti Airtel Ltd., Telemedia
18101 950 130 155 Reliance Infocom Ltd Internet

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3444 3807 201 bellsouth.net, inc.
7029 3223 1017 199 Windstream Communications Inc
18566 2093 382 177 Covad Communications
1785 1866 680 125 PaeTec Communications, Inc.
20115 1627 1552 627 Charter Communications
4323 1609 1062 384 Time Warner Telecom
22773 1499 2910 109 Cox Communications, Inc.
30036 1430 253 752 Mediacom Communications Corp
19262 1386 4683 400 Verizon Global Networks
7018 1303 7007 848 AT&T WorldNet Services

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1698 480 15 Corbina telecom
2118 1391 99 14 EUnet/RELCOM Autonomous Syste
15557 1096 2161 64 LDCOM NETWORKS
34984 643 188 172 BILISIM TELEKOM
6830 642 1927 412 UPC Distribution Services
20940 602 195 467 Akamai Technologies European
12479 561 642 54 Uni2 Autonomous System
31148 536 37 9 FreeNet ISP
3320 531 8162 397 Deutsche Telekom AG
8551 531 360 81 Bezeq International

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
10620 1735 323 170 TVCABLE BOGOTA
28573 1636 1085 69 NET Servicos de Comunicao S.A
8151 1337 2995 344 UniNet S.A. de C.V.
7303 1260 757 180 Telecom Argentina Stet-France
26615 816 616 33 Tim Brasil S.A.
11172 698 95 75 Servicios Alestra S.A de C.V
27947 649 73 99 Telconet S.A
22047 581 322 17 VTR PUNTO NET S.A.
3816 550 237 91 Empresa Nacional de Telecomun
7738 550 1050 31 Telecomunicacoes da Bahia S.A

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8452 1218 958 13 TEDATA
24863 834 155 43 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
12258 197 28 62 Vodacom Internet Company
24835 193 80 8 RAYA Telecom - Egypt
29571 189 17 11 Ci Telecom Autonomous system
36923 180 20 4 Swift Networks Limited

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3444 3807 201 bellsouth.net, inc.
7029 3223 1017 199 Windstream Communications Inc
4766 2474 11102 982 Korea Telecom (KIX)
18566 2093 382 177 Covad Communications
1785 1866 680 125 PaeTec Communications, Inc.
10620 1735 323 170 TVCABLE BOGOTA
17974 1723 503 36 PT TELEKOMUNIKASI INDONESIA
8402 1698 480 15 Corbina telecom
7545 1643 303 86 TPG Internet Pty Ltd
28573 1636 1085 69 NET Servicos de Comunicao S.A

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
7029 3223 3024 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1866 1741 PaeTec Communications, Inc.
17974 1723 1687 PT TELEKOMUNIKASI INDONESIA
8402 1698 1683 Corbina telecom
28573 1636 1567 NET Servicos de Comunicao S.A
10620 1735 1565 TVCABLE BOGOTA
7545 1643 1557 TPG Internet Pty Ltd
4766 2474 1492 Korea Telecom (KIX)
7552 1408 1401 Vietel Corporation

Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser

Complete listing at http://thyme.rand.apnic.net/current/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project

Complete listing at http://thyme.rand.apnic.net/current/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
23.26.0.0/16 11798 Ericsson Cyberlab West
37.77.176.0/21 16082 Spitfire Digital Networks Aut

Complete listing at http://thyme.rand.apnic.net/current/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 /8:19 /9:12 /10:27 /11:80 /12:231
/13:458 /14:817 /15:1466 /16:12155 /17:6172 /18:10291
/19:20364 /20:28189 /21:29108 /22:39573 /23:36871 /24:206344
/25:1189 /26:1428 /27:787 /28:43 /29:58 /30:14
/31:0 /32:18

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
7029 2853 3223 Windstream Communications Inc
6389 2114 3444 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1677 1698 Corbina telecom
10620 1629 1735 TVCABLE BOGOTA
30036 1388 1430 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1064 1866 PaeTec Communications, Inc.
15557 1046 1096 LDCOM NETWORKS
7011 1033 1149 Citizens Utilities

Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:498 2:475 4:14 5:1 6:3 8:379
12:1953 13:1 14:588 15:11 16:3 17:6
20:9 23:127 24:1725 27:1187 31:848 32:65
33:2 34:2 36:9 37:162 38:790 40:114
41:3156 42:91 43:1 44:3 46:1278 47:3
49:322 50:513 52:13 54:2 55:7 56:3
57:38 58:959 59:492 60:344 61:1187 62:927
63:1999 64:4147 65:2286 66:4420 67:2045 68:1167
69:3151 70:915 71:410 72:1794 74:2639 75:452
76:323 77:966 78:906 79:508 80:1215 81:865
82:562 83:538 84:582 85:1158 86:746 87:907
88:340 89:1539 90:253 91:4445 92:540 93:1552
94:1338 95:1122 96:417 97:310 98:804 99:38
100:20 101:139 103:738 106:4 107:143 108:145
109:1466 110:688 111:843 112:429 113:524 114:597
115:757 116:861 117:723 118:907 119:1249 120:356
121:682 122:1626 123:1070 124:1338 125:1360 128:538
129:189 130:213 131:585 132:164 133:21 134:231
135:59 136:214 137:153 138:285 139:145 140:488
141:260 142:378 143:401 144:510 145:70 146:483
147:228 148:721 149:274 150:168 151:196 152:446
153:170 154:7 155:391 156:211 157:367 158:156
159:513 160:331 161:243 162:341 163:188 164:532
165:394 166:556 167:456 168:765 169:146 170:829
171:108 172:2 173:1751 174:592 175:413 176:462
177:467 178:1247 180:1176 181:61 182:703 183:277
184:430 185:1 186:1956 187:852 188:1041 189:1173
190:5440 192:5973 193:5523 194:4326 195:3388 196:1298
197:180 198:3614 199:4365 200:5707 201:1730 202:8419
203:8599 204:4343 205:2445 206:2745 207:2817 208:4059
209:3553 210:2742 211:1475 212:1974 213:1835 214:850
215:93 216:4978 217:1466 218:553 219:341 220:1254
221:558 222:324 223:274

End of report
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Friday, February 3, 2012

[bgp-stats] Routing Table Report - London view

* BGP Routing Table Analysis Reports *
Routing Table Report 08:00 +10GMT Sat 04 Feb, 2012

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/

Analysis Summary
----------------

BGP routing table entries examined: 389521
Prefixes after maximum aggregation: 167472
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 191943
Total ASes present in the Internet Routing Table: 37923
Prefixes per ASN: 10.27
Origin-only ASes present in the Internet Routing Table: 32669
Origin ASes announcing only one prefix: 15526
Transit ASes present in the Internet Routing Table: 5254
Transit-only ASes present in the Internet Routing Table: 127
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: 1057
Unregistered ASNs in the Routing Table: 182
Number of 32-bit ASNs allocated by the RIRs: 2257
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4682
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 120
Number of addresses announced to Internet: 2529690624
Equivalent to 150 /8s, 200 /16s and 4 /24s
Percentage of available address space announced: 68.3
Percentage of allocated address space announced: 68.3
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: 163977

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 92073
Total APNIC prefixes after maximum aggregation: 30183
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 89389
Unique aggregates announced from the APNIC address blocks: 39091
APNIC Region origin ASes present in the Internet Routing Table: 4588
APNIC Prefixes per ASN: 19.48
APNIC Region origin ASes announcing only one prefix: 1253
APNIC Region transit ASes present in the Internet Routing Table: 699
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: 635577856
Equivalent to 37 /8s, 226 /16s and 38 /24s
Percentage of available APNIC address space announced: 80.6

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 146909
Total ARIN prefixes after maximum aggregation: 74916
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119132
Unique aggregates announced from the ARIN address blocks: 49275
ARIN Region origin ASes present in the Internet Routing Table: 14817
ARIN Prefixes per ASN: 8.04
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: 18
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 804337664
Equivalent to 47 /8s, 241 /16s and 56 /24s
Percentage of available ARIN address space announced: 63.9

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 98450
Total RIPE prefixes after maximum aggregation: 52262
RIPE Deaggregation factor: 1.88
Prefixes being announced from the RIPE address blocks: 90301
Unique aggregates announced from the RIPE address blocks: 55954
RIPE Region origin ASes present in the Internet Routing Table: 16284
RIPE Prefixes per ASN: 5.55
RIPE Region origin ASes announcing only one prefix: 8002
RIPE Region transit ASes present in the Internet Routing Table: 2583
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 22
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 498613504
Equivalent to 29 /8s, 184 /16s and 61 /24s
Percentage of available RIPE address space announced: 80.3

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 37696
Total LACNIC prefixes after maximum aggregation: 7962
LACNIC Deaggregation factor: 4.73
Prefixes being announced from the LACNIC address blocks: 37476
Unique aggregates announced from the LACNIC address blocks: 19457
LACNIC Region origin ASes present in the Internet Routing Table: 1558
LACNIC Prefixes per ASN: 24.05
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 286
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 95971840
Equivalent to 5 /8s, 184 /16s and 106 /24s
Percentage of available LACNIC address space announced: 63.6

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: 9002
Total AfriNIC prefixes after maximum aggregation: 2077
AfriNIC Deaggregation factor: 4.33
Prefixes being announced from the AfriNIC address blocks: 7031
Unique aggregates announced from the AfriNIC address blocks: 2139
AfriNIC Region origin ASes present in the Internet Routing Table: 507
AfriNIC Prefixes per ASN: 13.87
AfriNIC Region origin ASes announcing only one prefix: 158
AfriNIC Region transit ASes present in the Internet Routing Table: 114
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: 30865408
Equivalent to 1 /8s, 214 /16s and 248 /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 1912 11098 670 Korea Telecom (KIX)
7545 1641 303 87 TPG Internet Pty Ltd
17974 1631 503 36 PT Telekomunikasi Indonesia
4755 1515 385 157 TATA Communications formerly
9829 1167 989 28 National Internet Backbone
9583 1123 82 483 Sify Limited
7552 1095 1062 11 Vietel Corporation
24560 1010 384 167 Bharti Airtel Ltd., Telemedia
4808 984 1947 279 CNCGROUP IP network China169
18101 935 131 156 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 3255 1043 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
1785 1867 680 124 PaeTec Communications, Inc.
20115 1626 1552 627 Charter Communications
4323 1608 1078 384 tw telecom holdings, inc.
22773 1498 2910 109 Cox Communications Inc.
30036 1435 253 741 Mediacom Communications Corp
19262 1385 4683 400 Verizon Online LLC
7018 1314 7040 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 1609 480 15 Corbina telecom
2118 1391 99 14 EUnet/RELCOM Autonomous Syste
15557 1096 2161 64 NEUF CEGETEL (formerly LDCOM
6830 642 1927 412 UPC Broadband
34984 642 188 171 BILISIM TELEKOM
20940 596 194 469 Akamai Technologies European
8551 576 360 81 Bezeq International
12479 557 642 54 France Telecom Espana SA
9116 541 326 32 Goldenlines main autonomous s
31148 532 37 9 FreeNet ISP

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 1735 323 170 Types of queries are: POCs, o
28573 1626 1085 69 Types of queries are: POCs, o
8151 1315 2976 341 Uninet S.A. de C.V.
7303 1260 757 180 Telecom Argentina S.A.
26615 885 624 33 Tim Celular S.A.
11172 698 111 76 Alestra, S. de R.L. de C.V.
27947 627 73 99 Telconet S.A
22047 581 322 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

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 1213 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 193 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 3255 1043 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
4766 1912 11098 670 Korea Telecom (KIX)
1785 1867 680 124 PaeTec Communications, Inc.
10620 1735 323 170 Types of queries are: POCs, o
7545 1641 303 87 TPG Internet Pty Ltd
17974 1631 503 36 PT Telekomunikasi Indonesia
20115 1626 1552 627 Charter Communications
28573 1626 1085 69 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 3255 3042 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1867 1743 PaeTec Communications, Inc.
17974 1631 1595 PT Telekomunikasi Indonesia
8402 1609 1594 Corbina telecom
10620 1735 1565 Types of queries are: POCs, o
28573 1626 1557 Types of queries are: POCs, o
7545 1641 1554 TPG Internet Pty Ltd
22773 1498 1389 Cox Communications Inc.
2118 1391 1377 EUnet/RELCOM Autonomous Syste

Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Complete listing at http://thyme.rand.apnic.net/london/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

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
14.192.8.0/22 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
14.192.28.0/22 45464 Room 201, TGU Bldg
37.77.128.0/21 8492 Siris
37.77.152.0/21 44176 Jarsat s.c. Jaroslaw i Elzbie
37.77.176.0/21 16082 Spitfire Digital Networks Aut
37.77.208.0/20 28929 Tiziano D'Inca' - AS
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 /14:815 /15:1463 /16:12093 /17:6156 /18:10230
/19:20371 /20:28042 /21:28812 /22:39034 /23:36561 /24:204566
/25:11 /26:21 /27:20 /28:154 /29:136 /30:66
/31:0 /32:141

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
7029 2867 3255 Windstream Communications Inc
6389 2114 3445 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1629 1735 Types of queries are: POCs, o
8402 1588 1609 Corbina telecom
30036 1394 1435 Mediacom Communications Corp
11492 1117 1154 CABLE ONE, INC.
1785 1063 1867 PaeTec Communications, Inc.
15557 1046 1096 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)
----------------------------------------------

1:497 2:451 4:14 5:1 6:3 8:378
12:1953 13:1 14:589 15:11 16:3 17:6
20:9 23:127 24:1721 27:1179 31:898 32:60
33:2 34:2 36:9 37:161 38:784 40:114
41:3177 42:92 44:3 46:1278 47:3 49:307
50:514 52:13 54:2 55:6 56:3 57:37
58:912 59:481 60:341 61:1086 62:928 63:1996
64:4121 65:2286 66:4409 67:2043 68:1166 69:3148
70:913 71:409 72:1795 74:2644 75:451 76:323
77:960 78:902 79:495 80:1222 81:876 82:567
83:537 84:581 85:1163 86:753 87:910 88:341
89:1538 90:253 91:4470 92:540 93:1539 94:1339
95:1108 96:412 97:310 98:812 99:38 100:20
101:139 103:724 106:3 107:143 108:144 109:1466
110:685 111:835 112:415 113:523 114:596 115:739
116:846 117:705 118:904 119:1237 120:354 121:647
122:1588 123:1063 124:1300 125:1312 128:495 129:181
130:207 131:587 132:163 133:21 134:221 135:59
136:212 137:150 138:285 139:144 140:463 141:260
142:360 143:397 144:506 145:70 146:478 147:230
148:701 149:273 150:161 151:196 152:444 153:170
154:6 155:413 156:208 157:335 158:156 159:439
160:329 161:226 162:338 163:179 164:528 165:399
166:556 167:456 168:760 169:145 170:833 171:111
172:4 173:1759 174:591 175:414 176:464 177:478
178:1246 180:1175 181:64 182:692 183:277 184:429
185:1 186:2026 187:855 188:1031 189:1171 190:5410
192:5939 193:5528 194:4330 195:3385 196:1275 197:180
198:3569 199:4324 200:5601 201:1722 202:8189 203:8499
204:4269 205:2426 206:2660 207:2747 208:4046 209:3532
210:2673 211:1446 212:1989 213:1836 214:851 215:91
216:4953 217:1473 218:540 219:336 220:1211 221:542
222:294 223:258

End of report
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[bgp-stats] Routing Table Report - Japan view

* BGP Routing Table Analysis Reports *
Routing Table Report 04:00 +10GMT Sat 04 Feb, 2012

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/

Analysis Summary
----------------

BGP routing table entries examined: 395820
Prefixes after maximum aggregation: 169388
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 191947
Total ASes present in the Internet Routing Table: 40003
Prefixes per ASN: 9.89
Origin-only ASes present in the Internet Routing Table: 32689
Origin ASes announcing only one prefix: 15521
Transit ASes present in the Internet Routing Table: 5393
Transit-only ASes present in the Internet Routing Table: 142
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 315
Unregistered ASNs in the Routing Table: 120
Number of 32-bit ASNs allocated by the RIRs: 2257
Number of 32-bit ASNs visible in the Routing Table: 1921
Prefixes from 32-bit ASNs in the Routing Table: 4672
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 120
Number of addresses announced to Internet: 2512081104
Equivalent to 149 /8s, 187 /16s and 80 /24s
Percentage of available address space announced: 67.8
Percentage of allocated address space announced: 67.8
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: 167934

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 97613
Total APNIC prefixes after maximum aggregation: 31507
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 93918
Unique aggregates announced from the APNIC address blocks: 39044
APNIC Region origin ASes present in the Internet Routing Table: 4648
APNIC Prefixes per ASN: 20.21
APNIC Region origin ASes announcing only one prefix: 1238
APNIC Region transit ASes present in the Internet Routing Table: 731
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 140
Number of APNIC addresses announced to Internet: 635833440
Equivalent to 37 /8s, 230 /16s and 12 /24s
Percentage of available APNIC address space announced: 80.6

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 148115
Total ARIN prefixes after maximum aggregation: 75385
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 120087
Unique aggregates announced from the ARIN address blocks: 49290
ARIN Region origin ASes present in the Internet Routing Table: 14884
ARIN Prefixes per ASN: 8.07
ARIN Region origin ASes announcing only one prefix: 5683
ARIN Region transit ASes present in the Internet Routing Table: 1577
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 15
Number of ARIN addresses announced to Internet: 804133824
Equivalent to 47 /8s, 238 /16s and 27 /24s
Percentage of available ARIN address space announced: 63.9

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 98052
Total RIPE prefixes after maximum aggregation: 52278
RIPE Deaggregation factor: 1.88
Prefixes being announced from the RIPE address blocks: 89929
Unique aggregates announced from the RIPE address blocks: 55955
RIPE Region origin ASes present in the Internet Routing Table: 16285
RIPE Prefixes per ASN: 5.52
RIPE Region origin ASes announcing only one prefix: 7995
RIPE Region transit ASes present in the Internet Routing Table: 2598
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1322
Number of RIPE addresses announced to Internet: 498585736
Equivalent to 29 /8s, 183 /16s and 208 /24s
Percentage of available RIPE address space announced: 80.3

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 38255
Total LACNIC prefixes after maximum aggregation: 8059
LACNIC Deaggregation factor: 4.75
Prefixes being announced from the LACNIC address blocks: 37876
Unique aggregates announced from the LACNIC address blocks: 19445
LACNIC Region origin ASes present in the Internet Routing Table: 1569
LACNIC Prefixes per ASN: 24.14
LACNIC Region origin ASes announcing only one prefix: 442
LACNIC Region transit ASes present in the Internet Routing Table: 294
Average LACNIC Region AS path length visible: 4.3
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 440
Number of LACNIC addresses announced to Internet: 95986568
Equivalent to 5 /8s, 184 /16s and 163 /24s
Percentage of available LACNIC address space announced: 63.6

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: 8951
Total AfriNIC prefixes after maximum aggregation: 2087
AfriNIC Deaggregation factor: 4.29
Prefixes being announced from the AfriNIC address blocks: 6957
Unique aggregates announced from the AfriNIC address blocks: 2150
AfriNIC Region origin ASes present in the Internet Routing Table: 512
AfriNIC Prefixes per ASN: 13.59
AfriNIC Region origin ASes announcing only one prefix: 163
AfriNIC Region transit ASes present in the Internet Routing Table: 115
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 30867968
Equivalent to 1 /8s, 215 /16s and 2 /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 2474 11102 982 Korea Telecom (KIX)
17974 1723 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1642 303 85 TPG Internet Pty Ltd
4755 1529 385 155 TATA Communications formerly
7552 1408 1064 7 Vietel Corporation
9829 1167 989 28 BSNL National Internet Backbo
9583 1123 82 483 Sify Limited
4808 1102 2051 313 CNCGROUP IP network: China169
24560 1014 385 167 Bharti Airtel Ltd., Telemedia
17488 934 161 224 Hathway IP Over Cable Interne

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3445 3807 201 bellsouth.net, inc.
7029 3211 1017 199 Windstream Communications Inc
18566 2093 382 177 Covad Communications
1785 1865 680 125 PaeTec Communications, Inc.
20115 1627 1552 627 Charter Communications
4323 1609 1062 384 Time Warner Telecom
22773 1498 2910 109 Cox Communications, Inc.
30036 1437 253 743 Mediacom Communications Corp
19262 1386 4683 400 Verizon Global Networks
7018 1305 7007 851 AT&T WorldNet Services

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1712 480 15 Corbina telecom
2118 1391 99 14 EUnet/RELCOM Autonomous Syste
15557 1096 2161 64 LDCOM NETWORKS
34984 643 188 172 BILISIM TELEKOM
6830 642 1927 412 UPC Distribution Services
20940 602 195 467 Akamai Technologies European
12479 561 642 54 Uni2 Autonomous System
31148 532 37 9 FreeNet ISP
3320 531 8162 397 Deutsche Telekom AG
8551 530 360 81 Bezeq International

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
10620 1735 323 170 TVCABLE BOGOTA
28573 1618 1083 72 NET Servicos de Comunicao S.A
8151 1336 2995 344 UniNet S.A. de C.V.
7303 1260 757 180 Telecom Argentina Stet-France
26615 887 640 33 Tim Brasil S.A.
11172 697 95 75 Servicios Alestra S.A de C.V
27947 650 73 99 Telconet S.A
22047 581 322 17 VTR PUNTO NET S.A.
3816 550 237 91 Empresa Nacional de Telecomun
7738 550 1050 31 Telecomunicacoes da Bahia S.A

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8452 1131 958 13 TEDATA
24863 834 155 43 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 193 80 8 RAYA Telecom - Egypt
16637 163 664 82 MTN Network Solutions

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3445 3807 201 bellsouth.net, inc.
7029 3211 1017 199 Windstream Communications Inc
4766 2474 11102 982 Korea Telecom (KIX)
18566 2093 382 177 Covad Communications
1785 1865 680 125 PaeTec Communications, Inc.
10620 1735 323 170 TVCABLE BOGOTA
17974 1723 503 36 PT TELEKOMUNIKASI INDONESIA
8402 1712 480 15 Corbina telecom
7545 1642 303 85 TPG Internet Pty Ltd
20115 1627 1552 627 Charter Communications

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
7029 3211 3012 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1865 1740 PaeTec Communications, Inc.
8402 1712 1697 Corbina telecom
17974 1723 1687 PT TELEKOMUNIKASI INDONESIA
10620 1735 1565 TVCABLE BOGOTA
7545 1642 1557 TPG Internet Pty Ltd
28573 1618 1546 NET Servicos de Comunicao S.A
4766 2474 1492 Korea Telecom (KIX)
7552 1408 1401 Vietel Corporation

Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Complete listing at http://thyme.rand.apnic.net/current/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project

Complete listing at http://thyme.rand.apnic.net/current/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
37.77.128.0/21 8492 Siris
37.77.152.0/21 44176 RIPE Network Coordination Cen

Complete listing at http://thyme.rand.apnic.net/current/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 /8:19 /9:12 /10:27 /11:80 /12:231
/13:458 /14:817 /15:1466 /16:12151 /17:6170 /18:10294
/19:20359 /20:28181 /21:29140 /22:39550 /23:36869 /24:206457
/25:1189 /26:1430 /27:786 /28:43 /29:59 /30:14
/31:0 /32:18

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
7029 2841 3211 Windstream Communications Inc
6389 2115 3445 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1691 1712 Corbina telecom
10620 1629 1735 TVCABLE BOGOTA
30036 1396 1437 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1063 1865 PaeTec Communications, Inc.
15557 1046 1096 LDCOM NETWORKS
7011 1033 1149 Citizens Utilities

Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:499 2:475 4:14 5:1 6:3 8:378
12:1954 13:1 14:595 15:11 16:3 17:6
20:9 23:125 24:1725 27:1187 31:852 32:65
33:2 34:2 36:9 37:161 38:791 40:114
41:3108 42:92 43:1 44:3 46:1279 47:3
49:322 50:514 52:13 54:2 55:8 56:3
57:38 58:958 59:491 60:344 61:1186 62:927
63:2000 64:4147 65:2287 66:4421 67:2048 68:1167
69:3149 70:916 71:410 72:1794 74:2646 75:452
76:323 77:963 78:913 79:498 80:1221 81:877
82:562 83:538 84:582 85:1163 86:746 87:910
88:341 89:1539 90:253 91:4473 92:540 93:1555
94:1338 95:1134 96:417 97:310 98:811 99:38
100:20 101:138 103:737 106:4 107:143 108:142
109:1467 110:687 111:837 112:429 113:525 114:596
115:757 116:860 117:722 118:906 119:1249 120:356
121:682 122:1627 123:1064 124:1338 125:1360 128:538
129:189 130:213 131:590 132:164 133:21 134:231
135:59 136:214 137:152 138:285 139:140 140:489
141:261 142:378 143:400 144:509 145:70 146:484
147:227 148:724 149:274 150:168 151:194 152:446
153:170 154:7 155:398 156:211 157:367 158:156
159:513 160:329 161:243 162:341 163:188 164:532
165:397 166:556 167:455 168:765 169:147 170:833
171:110 172:4 173:1757 174:591 175:414 176:468
177:470 178:1246 180:1176 181:64 182:703 183:274
184:430 185:1 186:2028 187:853 188:1030 189:1168
190:5444 192:5979 193:5525 194:4330 195:3390 196:1299
197:180 198:3615 199:4359 200:5710 201:1728 202:8404
203:8598 204:4343 205:2443 206:2747 207:2817 208:4064
209:3558 210:2724 211:1475 212:1976 213:1841 214:855
215:93 216:4984 217:1472 218:553 219:341 220:1243
221:555 222:321 223:274

End of report
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