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.

Monday, April 15, 2013

[bgp-stats] Routing Table Report - Japan view

* BGP Routing Table Analysis Reports *
Routing Table Report 04:00 +10GMT Tue 16 Apr, 2013

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

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

BGP routing table entries examined: 450703
Prefixes after maximum aggregation: 184411
Deaggregation factor: 2.44
Unique aggregates announced to Internet: 214542
Total ASes present in the Internet Routing Table: 43835
Prefixes per ASN: 10.28
Origin-only ASes present in the Internet Routing Table: 34471
Origin ASes announcing only one prefix: 16074
Transit ASes present in the Internet Routing Table: 5796
Transit-only ASes present in the Internet Routing Table: 141
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 29
Max AS path prepend of ASN ( 55068) 25
Prefixes from unregistered ASNs in the Routing Table: 383
Unregistered ASNs in the Routing Table: 145
Number of 32-bit ASNs allocated by the RIRs: 4725
Number of 32-bit ASNs visible in the Routing Table: 3568
Prefixes from 32-bit ASNs in the Routing Table: 10145
Special use prefixes present in the Routing Table: 20
Prefixes being announced from unallocated address space: 212
Number of addresses announced to Internet: 2612965964
Equivalent to 155 /8s, 190 /16s and 178 /24s
Percentage of available address space announced: 70.6
Percentage of allocated address space announced: 70.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 94.4
Total number of prefixes smaller than registry allocations: 159327

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

Prefixes being announced by APNIC Region ASes: 108099
Total APNIC prefixes after maximum aggregation: 33341
APNIC Deaggregation factor: 3.24
Prefixes being announced from the APNIC address blocks: 109301
Unique aggregates announced from the APNIC address blocks: 44426
APNIC Region origin ASes present in the Internet Routing Table: 4820
APNIC Prefixes per ASN: 22.68
APNIC Region origin ASes announcing only one prefix: 1222
APNIC Region transit ASes present in the Internet Routing Table: 817
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 499
Number of APNIC addresses announced to Internet: 719739328
Equivalent to 42 /8s, 230 /16s and 89 /24s
Percentage of available APNIC address space announced: 84.1

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-133119
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: 158041
Total ARIN prefixes after maximum aggregation: 79718
ARIN Deaggregation factor: 1.98
Prefixes being announced from the ARIN address blocks: 158734
Unique aggregates announced from the ARIN address blocks: 72536
ARIN Region origin ASes present in the Internet Routing Table: 15637
ARIN Prefixes per ASN: 10.15
ARIN Region origin ASes announcing only one prefix: 5946
ARIN Region transit ASes present in the Internet Routing Table: 1614
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 29
Number of ARIN region 32-bit ASNs visible in the Routing Table: 18
Number of ARIN addresses announced to Internet: 1062661504
Equivalent to 63 /8s, 86 /16s and 237 /24s
Percentage of available ARIN address space announced: 56.2

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, 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: 116554
Total RIPE prefixes after maximum aggregation: 59401
RIPE Deaggregation factor: 1.96
Prefixes being announced from the RIPE address blocks: 120087
Unique aggregates announced from the RIPE address blocks: 69393
RIPE Region origin ASes present in the Internet Routing Table: 17134
RIPE Prefixes per ASN: 7.01
RIPE Region origin ASes announcing only one prefix: 8161
RIPE Region transit ASes present in the Internet Routing Table: 2795
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2293
Number of RIPE addresses announced to Internet: 657125092
Equivalent to 39 /8s, 42 /16s and 238 /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: 47659
Total LACNIC prefixes after maximum aggregation: 9411
LACNIC Deaggregation factor: 5.06
Prefixes being announced from the LACNIC address blocks: 51700
Unique aggregates announced from the LACNIC address blocks: 24119
LACNIC Region origin ASes present in the Internet Routing Table: 1892
LACNIC Prefixes per ASN: 27.33
LACNIC Region origin ASes announcing only one prefix: 557
LACNIC Region transit ASes present in the Internet Routing Table: 354
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 751
Number of LACNIC addresses announced to Internet: 126773800
Equivalent to 7 /8s, 142 /16s and 106 /24s
Percentage of available LACNIC address space announced: 75.6

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-62463, 262144-263167 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: 10063
Total AfriNIC prefixes after maximum aggregation: 2492
AfriNIC Deaggregation factor: 4.04
Prefixes being announced from the AfriNIC address blocks: 10669
Unique aggregates announced from the AfriNIC address blocks: 3871
AfriNIC Region origin ASes present in the Internet Routing Table: 615
AfriNIC Prefixes per ASN: 17.35
AfriNIC Region origin ASes announcing only one prefix: 188
AfriNIC Region transit ASes present in the Internet Routing Table: 128
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: 7
Number of AfriNIC addresses announced to Internet: 46227712
Equivalent to 2 /8s, 193 /16s and 97 /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 2956 11557 923 Korea Telecom (KIX)
17974 2511 839 89 PT TELEKOMUNIKASI INDONESIA
7545 1883 320 108 TPG Internet Pty Ltd
4755 1734 392 198 TATA Communications formerly
9829 1511 1205 40 BSNL National Internet Backbo
9583 1283 98 538 Sify Limited
7552 1170 1066 12 Vietel Corporation
4808 1123 2111 326 CNCGROUP IP network: China169
9498 1071 310 73 BHARTI Airtel Ltd.
24560 1066 385 163 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 3037 3694 87 bellsouth.net, inc.
7029 2173 1265 212 Windstream Communications Inc
18566 2068 382 184 Covad Communications
22773 2016 2929 125 Cox Communications, Inc.
1785 1974 677 122 PaeTec Communications, Inc.
20115 1669 1611 611 Charter Communications
4323 1608 1139 397 Time Warner Telecom
30036 1342 296 657 Mediacom Communications Corp
7018 1315 10807 854 AT&T WorldNet Services
11492 1237 227 333 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 1867 544 16 Corbina telecom
2118 1430 97 13 EUnet/RELCOM Autonomous Syste
34984 1145 234 207 BILISIM TELEKOM
12479 844 786 66 Uni2 Autonomous System
13188 837 99 33 Educational Network
20940 820 286 652 Akamai Technologies European
31148 792 41 21 FreeNet ISP
6830 752 2318 440 UPC Distribution Services
8551 735 369 50 Bezeq International
58113 666 74 386 LIR DATACENTER TELECOM 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 2564 1430 112 NET Servicos de Comunicao S.A
10620 2383 409 219 TVCABLE BOGOTA
7303 1676 1153 211 Telecom Argentina Stet-France
8151 1230 2688 396 UniNet S.A. de C.V.
14754 1132 153 37 Telgua S. A.
6503 1110 435 68 AVANTEL, S.A.
18881 851 716 18 Global Village Telecom
27947 809 88 97 Telconet S.A
11830 725 364 14 Instituto Costarricense de El
3816 697 306 85 Empresa Nacional de Telecomun

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 1137 80 4 MOBITEL
24863 694 274 33 LINKdotNET AS number
6713 543 617 25 Itissalat Al-MAGHRIB
8452 358 956 9 TEDATA
24835 275 80 8 RAYA Telecom - Egypt
3741 262 906 220 The Internet Solution
12258 193 28 67 Vodacom Internet Company
29975 191 667 21 Vodacom
16637 186 697 91 MTN Network Solutions
33776 182 12 19 Starcomms Nigeria 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 3037 3694 87 bellsouth.net, inc.
4766 2956 11557 923 Korea Telecom (KIX)
28573 2564 1430 112 NET Servicos de Comunicao S.A
17974 2511 839 89 PT TELEKOMUNIKASI INDONESIA
10620 2383 409 219 TVCABLE BOGOTA
7029 2173 1265 212 Windstream Communications Inc
18566 2068 382 184 Covad Communications
22773 2016 2929 125 Cox Communications, Inc.
1785 1974 677 122 PaeTec Communications, Inc.
7545 1883 320 108 TPG Internet Pty Ltd

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 2564 2452 NET Servicos de Comunicao S.A
17974 2511 2422 PT TELEKOMUNIKASI INDONESIA
10620 2383 2164 TVCABLE BOGOTA
4766 2956 2033 Korea Telecom (KIX)
7029 2173 1961 Windstream Communications Inc
22773 2016 1891 Cox Communications, Inc.
18566 2068 1884 Covad Communications
1785 1974 1852 PaeTec Communications, Inc.
8402 1867 1851 Corbina telecom
7545 1883 1775 TPG Internet Pty Ltd

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
128.0.55.0/24 48571 SC efectRO SRL
128.0.58.0/23 9050 RTD-ROMTELECOM Autonomous Sys
128.0.61.0/24 9050 RTD-ROMTELECOM Autonomous Sys
128.0.62.0/24 9050 RTD-ROMTELECOM Autonomous Sys
128.0.72.0/21 23456 32-bit ASN transition
128.0.80.0/20 52041 Timer LTD
128.0.96.0/21 12886 LEWTelNet GmbH

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

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

Network Origin AS Description
41.222.80.0/21 37110 Moztel LDA
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.

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 /9:13 /10:29 /11:88 /12:249
/13:485 /14:883 /15:1560 /16:12687 /17:6611 /18:10912
/19:21781 /20:31892 /21:33779 /22:46739 /23:41755 /24:237052
/25:1389 /26:1768 /27:862 /28:44 /29:68 /30:21
/31:0 /32:19

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

ASN No of nets Total ann. Description
18566 2019 2068 Covad Communications
6389 1742 3037 bellsouth.net, inc.
7029 1612 2173 Windstream Communications Inc
8402 1568 1867 Corbina telecom
22773 1320 2016 Cox Communications, Inc.
30036 1217 1342 Mediacom Communications Corp
11492 1197 1237 Cable One
36998 1131 1137 MOBITEL
1785 1047 1974 PaeTec Communications, Inc.
6983 1006 1134 ITC^Deltacom

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

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

1:771 2:795 3:3 4:15 5:859 6:5
8:543 12:1919 13:3 14:770 15:11 16:3
17:9 20:18 23:259 24:1774 27:1458 31:1210
32:43 33:2 34:5 36:43 37:1802 38:861
39:2 40:169 41:2632 42:185 44:6 46:1791
47:2 49:614 50:674 52:12 54:30 55:8
57:27 58:1102 59:589 60:306 61:1450 62:997
63:2031 64:4309 65:2179 66:4304 67:2074 68:1119
69:3248 70:875 71:531 72:1918 74:2568 75:411
76:293 77:1099 78:1043 79:591 80:1237 81:979
82:612 83:579 84:566 85:1167 86:461 87:962
88:527 89:1799 90:281 91:5491 92:619 93:1734
94:1854 95:1626 96:503 97:340 98:1053 99:41
100:29 101:317 103:2425 105:488 106:136 107:207
108:515 109:1801 110:847 111:1048 112:501 113:783
114:689 115:1012 116:874 117:781 118:1021 119:1257
120:390 121:819 122:1733 123:1187 124:1333 125:1325
128:631 129:226 130:322 131:657 132:338 133:149
134:259 135:62 136:222 137:249 138:343 139:187
140:199 141:317 142:542 143:377 144:500 145:91
146:510 147:383 148:697 149:367 150:165 151:527
152:419 153:194 154:44 155:393 156:260 157:394
158:267 159:717 160:335 161:424 162:379 163:202
164:578 165:449 166:336 167:577 168:1027 169:133
170:1033 171:174 172:5 173:1604 174:590 175:447
176:1245 177:1851 178:1811 179:2 180:1394 181:375
182:1130 183:372 184:661 185:363 186:2453 187:1255
188:2012 189:1315 190:6649 192:6500 193:5825 194:4644
195:3643 196:1329 197:827 198:4331 199:5279 200:5983
201:2400 202:8845 203:8769 204:4522 205:2557 206:2820
207:2832 208:4063 209:3579 210:2938 211:1562 212:2023
213:1891 214:946 215:98 216:5228 217:1570 218:624
219:346 220:1268 221:548 222:313 223:441

End of report
_______________________________________________
bgp-stats mailing list
bgp-stats@lists.apnic.net
http://mailman.apnic.net/mailman/listinfo/bgp-stats
Posted by Admin at 11:36 AM

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)