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, February 12, 2013

[bgp-stats] Routing Table Report - Japan view

* BGP Routing Table Analysis Reports *
Routing Table Report 04:00 +10GMT Wed 13 Feb, 2013

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

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

BGP routing table entries examined: 442693
Prefixes after maximum aggregation: 182203
Deaggregation factor: 2.43
Unique aggregates announced to Internet: 217207
Total ASes present in the Internet Routing Table: 43269
Prefixes per ASN: 10.23
Origin-only ASes present in the Internet Routing Table: 34143
Origin ASes announcing only one prefix: 15927
Transit ASes present in the Internet Routing Table: 5752
Transit-only ASes present in the Internet Routing Table: 138
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 29
Max AS path prepend of ASN ( 28730) 25
Prefixes from unregistered ASNs in the Routing Table: 376
Unregistered ASNs in the Routing Table: 135
Number of 32-bit ASNs allocated by the RIRs: 3749
Number of 32-bit ASNs visible in the Routing Table: 3374
Prefixes from 32-bit ASNs in the Routing Table: 9237
Special use prefixes present in the Routing Table: 17
Prefixes being announced from unallocated address space: 194
Number of addresses announced to Internet: 2616145668
Equivalent to 155 /8s, 239 /16s and 55 /24s
Percentage of available address space announced: 70.7
Percentage of allocated address space announced: 70.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 94.3
Total number of prefixes smaller than registry allocations: 156315

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

Prefixes being announced by APNIC Region ASes: 106368
Total APNIC prefixes after maximum aggregation: 33111
APNIC Deaggregation factor: 3.21
Prefixes being announced from the APNIC address blocks: 107427
Unique aggregates announced from the APNIC address blocks: 44000
APNIC Region origin ASes present in the Internet Routing Table: 4809
APNIC Prefixes per ASN: 22.34
APNIC Region origin ASes announcing only one prefix: 1230
APNIC Region transit ASes present in the Internet Routing Table: 805
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 426
Number of APNIC addresses announced to Internet: 718691072
Equivalent to 42 /8s, 214 /16s and 91 /24s
Percentage of available APNIC address space announced: 84.0

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: 155525
Total ARIN prefixes after maximum aggregation: 78736
ARIN Deaggregation factor: 1.98
Prefixes being announced from the ARIN address blocks: 156209
Unique aggregates announced from the ARIN address blocks: 70829
ARIN Region origin ASes present in the Internet Routing Table: 15459
ARIN Prefixes per ASN: 10.10
ARIN Region origin ASes announcing only one prefix: 5847
ARIN Region transit ASes present in the Internet Routing Table: 1601
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: 1076068224
Equivalent to 64 /8s, 35 /16s and 127 /24s
Percentage of available ARIN address space announced: 56.9

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, 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: 113989
Total RIPE prefixes after maximum aggregation: 58766
RIPE Deaggregation factor: 1.94
Prefixes being announced from the RIPE address blocks: 117097
Unique aggregates announced from the RIPE address blocks: 74938
RIPE Region origin ASes present in the Internet Routing Table: 17056
RIPE Prefixes per ASN: 6.87
RIPE Region origin ASes announcing only one prefix: 8148
RIPE Region transit ASes present in the Internet Routing Table: 2784
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2181
Number of RIPE addresses announced to Internet: 653363812
Equivalent to 38 /8s, 241 /16s and 138 /24s
Percentage of available RIPE address space announced: 95.0

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: 47021
Total LACNIC prefixes after maximum aggregation: 9128
LACNIC Deaggregation factor: 5.15
Prefixes being announced from the LACNIC address blocks: 50726
Unique aggregates announced from the LACNIC address blocks: 23546
LACNIC Region origin ASes present in the Internet Routing Table: 1808
LACNIC Prefixes per ASN: 28.06
LACNIC Region origin ASes announcing only one prefix: 524
LACNIC Region transit ASes present in the Internet Routing Table: 336
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 27
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 742
Number of LACNIC addresses announced to Internet: 122951456
Equivalent to 7 /8s, 84 /16s and 23 /24s
Percentage of available LACNIC address space announced: 73.3

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,
191/8, 200/8, 201/8,

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

Prefixes being announced by AfriNIC Region ASes: 10424
Total AfriNIC prefixes after maximum aggregation: 2410
AfriNIC Deaggregation factor: 4.33
Prefixes being announced from the AfriNIC address blocks: 11040
Unique aggregates announced from the AfriNIC address blocks: 3721
AfriNIC Region origin ASes present in the Internet Routing Table: 595
AfriNIC Prefixes per ASN: 18.55
AfriNIC Region origin ASes announcing only one prefix: 178
AfriNIC Region transit ASes present in the Internet Routing Table: 135
Average AfriNIC Region AS path length visible: 4.7
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: 44713728
Equivalent to 2 /8s, 170 /16s and 71 /24s
Percentage of available AfriNIC address space announced: 44.4

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 2942 11558 924 Korea Telecom (KIX)
17974 2484 824 85 PT TELEKOMUNIKASI INDONESIA
7545 1828 301 88 TPG Internet Pty Ltd
4755 1684 382 190 TATA Communications formerly
9829 1429 1144 44 BSNL National Internet Backbo
9583 1208 90 501 Sify Limited
7552 1161 1070 12 Vietel Corporation
4808 1109 2040 316 CNCGROUP IP network: China169
9498 1060 310 75 BHARTI Airtel Ltd.
24560 1044 385 160 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 3073 3698 107 bellsouth.net, inc.
7029 2193 1265 210 Windstream Communications Inc
18566 2080 382 185 Covad Communications
22773 1984 2931 128 Cox Communications, Inc.
1785 1958 678 128 PaeTec Communications, Inc.
20115 1690 1610 622 Charter Communications
4323 1601 1155 396 Time Warner Telecom
30036 1342 287 689 Mediacom Communications Corp
7018 1301 10552 856 AT&T WorldNet Services
7011 1201 316 683 Citizens Utilities

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 1911 544 16 Corbina telecom
2118 1114 97 13 EUnet/RELCOM Autonomous Syste
34984 1053 232 204 BILISIM TELEKOM
13188 851 99 22 Educational Network
12479 840 782 68 Uni2 Autonomous System
31148 758 39 18 FreeNet ISP
20940 748 255 590 Akamai Technologies European
8551 716 367 39 Bezeq International
6830 712 2313 433 UPC Distribution Services
34744 685 186 47 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 2360 1325 86 NET Servicos de Comunicao S.A
10620 2312 396 226 TVCABLE BOGOTA
7303 1679 1147 206 Telecom Argentina Stet-France
8151 1502 2814 396 UniNet S.A. de C.V.
6503 1473 435 67 AVANTEL, S.A.
14754 940 120 78 Telgua S. A.
27947 776 86 98 Telconet S.A
18881 758 716 18 Global Village Telecom
3816 684 306 85 Empresa Nacional de Telecomun
7738 613 1242 34 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
36998 1286 80 4 MOBITEL
24863 898 275 36 LINKdotNET AS number
8452 536 958 13 TEDATA
6713 502 602 20 Itissalat Al-MAGHRIB
24835 329 80 8 RAYA Telecom - Egypt
3741 266 906 224 The Internet Solution
12258 193 28 67 Vodacom Internet Company
29975 191 667 21 Vodacom
16637 189 696 90 MTN Network Solutions
29571 171 16 18 Ci Telecom Autonomous system

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 3073 3698 107 bellsouth.net, inc.
4766 2942 11558 924 Korea Telecom (KIX)
17974 2484 824 85 PT TELEKOMUNIKASI INDONESIA
28573 2360 1325 86 NET Servicos de Comunicao S.A
10620 2312 396 226 TVCABLE BOGOTA
7029 2193 1265 210 Windstream Communications Inc
18566 2080 382 185 Covad Communications
22773 1984 2931 128 Cox Communications, Inc.
1785 1958 678 128 PaeTec Communications, Inc.
8402 1911 544 16 Corbina telecom

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

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

ASN No of nets Net Savings Description
17974 2484 2399 PT TELEKOMUNIKASI INDONESIA
28573 2360 2274 NET Servicos de Comunicao S.A
10620 2312 2086 TVCABLE BOGOTA
4766 2942 2018 Korea Telecom (KIX)
7029 2193 1983 Windstream Communications Inc
18566 2080 1895 Covad Communications
8402 1911 1895 Corbina telecom
22773 1984 1856 Cox Communications, Inc.
1785 1958 1830 PaeTec Communications, Inc.
7545 1828 1740 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
128.0.60.0/23 57417 INTERNET TASMANIA SRL
128.0.62.0/23 57417 INTERNET TASMANIA SRL
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
128.0.104.0/23 51848 FOP Gabidullina Ludmila Nikol
128.0.106.0/24 23456 32-bit ASN transition

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

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

Network Origin AS Description
31.210.16.0/22 15657 Neural Networks ASN
41.138.95.0/24 36930 ZanZibar Telecom
41.222.80.0/21 37110 Moztel LDA
62.12.96.0/19 38478 SunnyVision Limited
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.

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 /12:246
/13:483 /14:864 /15:1551 /16:12553 /17:6592 /18:10995
/19:21752 /20:31203 /21:33352 /22:45425 /23:41075 /24:232247
/25:1360 /26:1732 /27:846 /28:175 /29:67 /30:10
/31:0 /32:18

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

ASN No of nets Total ann. Description
18566 2030 2080 Covad Communications
6389 1759 3073 bellsouth.net, inc.
8402 1639 1911 Corbina telecom
7029 1568 2193 Windstream Communications Inc
22773 1302 1984 Cox Communications, Inc.
36998 1280 1286 MOBITEL
30036 1234 1342 Mediacom Communications Corp
11492 1159 1196 Cable One
1785 1036 1958 PaeTec Communications, Inc.
6503 983 1473 AVANTEL, S.A.

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

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

1:669 2:761 3:3 4:13 5:749 6:3
8:492 12:1936 13:3 14:739 15:11 16:3
17:8 20:24 23:238 24:1802 27:1468 31:1143
32:54 33:2 34:5 36:11 37:1300 38:847
39:2 40:141 41:2642 42:179 44:4 46:1740
47:1 49:574 50:650 52:12 54:28 55:8
57:28 58:1081 59:562 60:251 61:1321 62:1029
63:2029 64:4322 65:2147 66:4227 67:2008 68:1120
69:3271 70:857 71:530 72:1876 74:2533 75:421
76:290 77:1076 78:1031 79:560 80:1214 81:975
82:624 83:540 84:563 85:1151 86:476 87:983
88:379 89:1742 90:287 91:5397 92:620 93:1721
94:2048 95:1593 96:506 97:333 98:1049 99:52
100:30 101:314 103:2098 105:519 106:131 107:207
108:511 109:1771 110:853 111:1010 112:480 113:735
114:683 115:921 116:876 117:793 118:984 119:1270
120:375 121:699 122:1735 123:1186 124:1319 125:1309
128:542 129:201 130:316 131:637 132:321 133:143
134:259 135:62 136:222 137:235 138:341 139:155
140:216 141:316 142:518 143:393 144:480 145:88
146:526 147:328 148:726 149:343 150:158 151:402
152:399 153:190 154:27 155:368 156:241 157:343
158:259 159:713 160:333 161:422 162:379 163:203
164:579 165:447 166:439 167:573 168:1011 169:131
170:920 171:164 172:4 173:1560 174:620 175:419
176:1155 177:1681 178:1740 180:1373 181:220 182:1152
183:317 184:619 185:228 186:2266 187:1454 188:1934
189:1537 190:6637 192:6315 193:5651 194:4641 195:3671
196:1299 197:867 198:4140 199:5205 200:6045 201:2194
202:8904 203:8756 204:4477 205:2540 206:2800 207:2810
208:4057 209:3520 210:2916 211:1569 212:1930 213:1890
214:907 215:93 216:5090 217:1585 218:592 219:336
220:1263 221:550 222:328 223:424

End of report
_______________________________________________
bgp-stats mailing list
bgp-stats@lists.apnic.net
http://mailman.apnic.net/mailman/listinfo/bgp-stats
Posted by Admin at 10:32 AM

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)