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.

Tuesday, June 25, 2013

[bgp-stats] Routing Table Report - Japan view

* BGP Routing Table Analysis Reports *
Routing Table Report 04:00 +10GMT Wed 26 Jun, 2013

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

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

BGP routing table entries examined: 456018
Prefixes after maximum aggregation: 186038
Deaggregation factor: 2.45
Unique aggregates announced to Internet: 226725
Total ASes present in the Internet Routing Table: 44377
Prefixes per ASN: 10.28
Origin-only ASes present in the Internet Routing Table: 34751
Origin ASes announcing only one prefix: 16170
Transit ASes present in the Internet Routing Table: 5882
Transit-only ASes present in the Internet Routing Table: 149
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 29
Max AS path prepend of ASN ( 36992) 22
Prefixes from unregistered ASNs in the Routing Table: 1577
Unregistered ASNs in the Routing Table: 720
Number of 32-bit ASNs allocated by the RIRs: 4817
Number of 32-bit ASNs visible in the Routing Table: 3744
Prefixes from 32-bit ASNs in the Routing Table: 10913
Special use prefixes present in the Routing Table: 25
Prefixes being announced from unallocated address space: 215
Number of addresses announced to Internet: 2642708524
Equivalent to 157 /8s, 132 /16s and 136 /24s
Percentage of available address space announced: 71.4
Percentage of allocated address space announced: 71.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 94.7
Total number of prefixes smaller than registry allocations: 159727

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

Prefixes being announced by APNIC Region ASes: 109765
Total APNIC prefixes after maximum aggregation: 33648
APNIC Deaggregation factor: 3.26
Prefixes being announced from the APNIC address blocks: 111322
Unique aggregates announced from the APNIC address blocks: 45405
APNIC Region origin ASes present in the Internet Routing Table: 4856
APNIC Prefixes per ASN: 22.92
APNIC Region origin ASes announcing only one prefix: 1226
APNIC Region transit ASes present in the Internet Routing Table: 823
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 22
Number of APNIC region 32-bit ASNs visible in the Routing Table: 587
Number of APNIC addresses announced to Internet: 725331680
Equivalent to 43 /8s, 59 /16s and 174 /24s
Percentage of available APNIC address space announced: 84.8

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-133119
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, 150/8, 153/8,
163/8, 171/8, 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: 158729
Total ARIN prefixes after maximum aggregation: 80400
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 159360
Unique aggregates announced from the ARIN address blocks: 74104
ARIN Region origin ASes present in the Internet Routing Table: 15753
ARIN Prefixes per ASN: 10.12
ARIN Region origin ASes announcing only one prefix: 6003
ARIN Region transit ASes present in the Internet Routing Table: 1642
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 27
Number of ARIN region 32-bit ASNs visible in the Routing Table: 19
Number of ARIN addresses announced to Internet: 1081634624
Equivalent to 64 /8s, 120 /16s and 111 /24s
Percentage of available ARIN address space announced: 57.2

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, 62464-63487, 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, 128/8,
129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
173/8, 174/8, 184/8, 192/8, 198/8, 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: 117181
Total RIPE prefixes after maximum aggregation: 60083
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 120800
Unique aggregates announced from the RIPE address blocks: 78291
RIPE Region origin ASes present in the Internet Routing Table: 17239
RIPE Prefixes per ASN: 7.01
RIPE Region origin ASes announcing only one prefix: 8171
RIPE Region transit ASes present in the Internet Routing Table: 2835
Average RIPE Region AS path length visible: 4.9
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2366
Number of RIPE addresses announced to Internet: 656703332
Equivalent to 39 /8s, 36 /16s and 127 /24s
Percentage of available RIPE address space announced: 95.5

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
59392-61439, 196608-199679
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,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

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

Prefixes being announced by LACNIC Region ASes: 48449
Total LACNIC prefixes after maximum aggregation: 9363
LACNIC Deaggregation factor: 5.17
Prefixes being announced from the LACNIC address blocks: 52791
Unique aggregates announced from the LACNIC address blocks: 24748
LACNIC Region origin ASes present in the Internet Routing Table: 1966
LACNIC Prefixes per ASN: 26.85
LACNIC Region origin ASes announcing only one prefix: 581
LACNIC Region transit ASes present in the Internet Routing Table: 362
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 766
Number of LACNIC addresses announced to Internet: 132502696
Equivalent to 7 /8s, 229 /16s and 212 /24s
Percentage of available LACNIC address space announced: 79.0

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 10891
Total AfriNIC prefixes after maximum aggregation: 2503
AfriNIC Deaggregation factor: 4.35
Prefixes being announced from the AfriNIC address blocks: 11530
Unique aggregates announced from the AfriNIC address blocks: 3979
AfriNIC Region origin ASes present in the Internet Routing Table: 642
AfriNIC Prefixes per ASN: 17.96
AfriNIC Region origin ASes announcing only one prefix: 189
AfriNIC Region transit ASes present in the Internet Routing Table: 134
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 6
Number of AfriNIC addresses announced to Internet: 46247168
Equivalent to 2 /8s, 193 /16s and 173 /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, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 2945 11561 922 Korea Telecom (KIX)
17974 2560 855 91 PT TELEKOMUNIKASI INDONESIA
7545 2011 320 109 TPG Internet Pty Ltd
4755 1748 391 191 TATA Communications formerly
9829 1519 1205 40 BSNL National Internet Backbo
9583 1290 98 536 Sify Limited
7552 1149 1080 13 Vietel Corporation
4808 1147 2124 334 CNCGROUP IP network: China169
9498 1138 309 70 BHARTI Airtel Ltd.
24560 1077 394 164 Bharti Airtel Ltd., Telemedia

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 2995 3691 71 bellsouth.net, inc.
18566 2064 382 184 Covad Communications
1785 1992 677 124 PaeTec Communications, Inc.
22773 1984 2927 123 Cox Communications, Inc.
20115 1665 1617 617 Charter Communications
4323 1622 1138 403 Time Warner Telecom
701 1534 11143 801 UUNET Technologies, Inc.
30036 1336 301 645 Mediacom Communications Corp
7018 1300 11039 829 AT&T WorldNet Services
11492 1221 217 360 Cable One

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 1688 544 16 Corbina telecom
34984 1285 244 221 BILISIM TELEKOM
2118 1085 97 13 EUnet/RELCOM Autonomous Syste
20940 888 308 696 Akamai Technologies European
13188 825 98 79 Educational Network
31148 806 40 25 FreeNet ISP
8551 775 370 44 Bezeq International
6830 766 2376 440 UPC Distribution Services
12479 684 789 57 Uni2 Autonomous System
34744 658 171 76 SC GVM SISTEM 2003 SRL

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
28573 2807 1559 107 NET Servicos de Comunicao S.A
10620 2674 420 199 TVCABLE BOGOTA
7303 1732 1155 221 Telecom Argentina Stet-France
8151 1258 2721 386 UniNet S.A. de C.V.
18881 1005 844 20 Global Village Telecom
6503 864 434 64 AVANTEL, S.A.
27947 820 89 107 Telconet S.A
3816 717 306 85 Empresa Nacional de Telecomun
7738 698 1370 35 Telecomunicacoes da Bahia S.A
6147 663 374 25 Telefonica Del Peru

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
36998 1237 80 4 MOBITEL
24863 884 274 30 LINKdotNET AS number
6713 531 617 25 Itissalat Al-MAGHRIB
8452 467 956 9 TEDATA
24835 344 80 8 RAYA Telecom - Egypt
3741 259 922 218 The Internet Solution
15706 222 32 6 Sudatel Internet Exchange Aut
29571 207 17 12 Ci Telecom Autonomous system
36992 201 527 21 Etisalat MISR
12258 193 28 66 Vodacom Internet Company

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 2995 3691 71 bellsouth.net, inc.
4766 2945 11561 922 Korea Telecom (KIX)
28573 2807 1559 107 NET Servicos de Comunicao S.A
10620 2674 420 199 TVCABLE BOGOTA
17974 2560 855 91 PT TELEKOMUNIKASI INDONESIA
18566 2064 382 184 Covad Communications
7545 2011 320 109 TPG Internet Pty Ltd
1785 1992 677 124 PaeTec Communications, Inc.
22773 1984 2927 123 Cox Communications, Inc.
4755 1748 391 191 TATA Communications formerly

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

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

ASN No of nets Net Savings Description
28573 2807 2700 NET Servicos de Comunicao S.A
10620 2674 2475 TVCABLE BOGOTA
17974 2560 2469 PT TELEKOMUNIKASI INDONESIA
4766 2945 2023 Korea Telecom (KIX)
7545 2011 1902 TPG Internet Pty Ltd
18566 2064 1880 Covad Communications
1785 1992 1868 PaeTec Communications, Inc.
22773 1984 1861 Cox Communications, Inc.
8402 1688 1672 Corbina telecom
4755 1748 1557 TATA Communications formerly

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
30031 UNALLOCATED 12.27.122.0/24 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 12.45.103.0/24 209 Qwest
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
14764 UNALLOCATED 12.108.237.0/24 7018 AT&T WorldNet Servic
33649 UNALLOCATED 12.111.112.0/24 19029 New Edge Networks
26064 UNALLOCATED 12.149.37.0/24 7018 AT&T WorldNet Servic

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

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

Prefix Origin AS Description
128.0.0.0/24 2876 Jump Management SRL
128.0.16.0/21 43568 RIPE Network Coordination Cen
128.0.24.0/21 41794 Altline LLC
128.0.46.0/23 39743 Mobimax Telecom SRL
128.0.53.0/24 60993 Totalsoft SA
128.0.54.0/24 60972 Carpatair SA
128.0.55.0/24 48571 SC efectRO SRL
128.0.57.0/24 60993 Totalsoft SA
128.0.58.0/23 9050 RTD-ROMTELECOM Autonomous Sys
128.0.60.0/24 9050 RTD-ROMTELECOM Autonomous Sys

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

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
64.185.224.0/24 27431 JTL Networks Inc.
64.185.225.0/24 27431 JTL Networks Inc.
64.185.226.0/24 27431 JTL Networks Inc.
64.185.227.0/24 27431 JTL Networks Inc.
64.185.228.0/24 27431 JTL Networks Inc.
64.185.229.0/24 27431 JTL Networks Inc.
64.185.230.0/24 27431 JTL Networks Inc.
64.185.231.0/24 27431 JTL Networks Inc.

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 /8:17 /9:11 /10:30 /11:91 /12:250
/13:483 /14:899 /15:1601 /16:12703 /17:6669 /18:11175
/19:22258 /20:32042 /21:34423 /22:47696 /23:42270 /24:239462
/25:1299 /26:1642 /27:851 /28:46 /29:65 /30:19
/31:0 /32:16

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

ASN No of nets Total ann. Description
18566 2015 2064 Covad Communications
6389 1720 2995 bellsouth.net, inc.
8402 1383 1688 Corbina telecom
22773 1290 1984 Cox Communications, Inc.
36998 1231 1237 MOBITEL
30036 1203 1336 Mediacom Communications Corp
11492 1183 1221 Cable One
1785 1060 1992 PaeTec Communications, Inc.
6983 1009 1139 ITC^Deltacom
10620 994 2674 TVCABLE BOGOTA

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

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

1:832 2:840 3:3 4:19 5:806 6:15
8:560 12:1924 13:3 14:850 15:11 16:3
17:10 20:17 23:279 24:1769 27:1499 31:1252
32:43 33:2 34:5 36:47 37:1868 38:878
39:2 40:170 41:2769 42:202 44:8 46:1909
47:2 49:657 50:740 52:12 54:35 55:6
57:26 58:1159 59:577 60:321 61:1408 62:1130
63:2030 64:4324 65:2156 66:4172 67:2047 68:1078
69:3269 70:832 71:496 72:1912 74:2469 75:322
76:302 77:1113 78:1053 79:613 80:1269 81:1007
82:621 83:584 84:547 85:1169 86:437 87:1004
88:539 89:1742 90:145 91:5527 92:606 93:1737
94:1872 95:1668 96:514 97:344 98:1010 99:42
100:30 101:330 103:2856 105:519 106:142 107:207
108:511 109:1835 110:907 111:1063 112:547 113:822
114:693 115:965 116:957 117:799 118:1104 119:1321
120:389 121:733 122:1798 123:1223 124:1377 125:1376
128:640 129:218 130:306 131:645 132:360 133:155
134:267 135:68 136:223 137:242 138:341 139:192
140:195 141:328 142:532 143:379 144:498 145:94
146:498 147:382 148:665 149:349 150:157 151:537
152:420 153:189 154:23 155:414 156:269 157:396
158:280 159:714 160:345 161:451 162:462 163:223
164:603 165:498 166:243 167:597 168:1041 169:130
170:1052 171:180 172:21 173:1582 174:546 175:472
176:964 177:2070 178:1857 179:44 180:1458 181:469
182:1237 183:387 184:661 185:558 186:2239 187:1258
188:2059 189:1274 190:6818 192:6759 193:5671 194:4609
195:3456 196:1362 197:919 198:4491 199:5339 200:5983
201:2196 202:8806 203:8902 204:4512 205:2570 206:2789
207:2839 208:4039 209:3628 210:2944 211:1517 212:2175
213:1965 214:926 215:99 216:5244 217:1627 218:619
219:334 220:1282 221:557 222:325 223:459

End of report
_______________________________________________
bgp-stats mailing list
bgp-stats@lists.apnic.net
http://mailman.apnic.net/mailman/listinfo/bgp-stats
Posted by Admin at 11:28 AM

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)