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, December 16, 2013

[bgp-stats] Routing Table Report - Japan view

* BGP Routing Table Analysis Reports *
Routing Table Report 04:00 +10GMT Tue 17 Dec, 2013

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

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

BGP routing table entries examined: 475057
Prefixes after maximum aggregation: 190123
Deaggregation factor: 2.50
Unique aggregates announced to Internet: 235968
Total ASes present in the Internet Routing Table: 45728
Prefixes per ASN: 10.39
Origin-only ASes present in the Internet Routing Table: 35469
Origin ASes announcing only one prefix: 16268
Transit ASes present in the Internet Routing Table: 5962
Transit-only ASes present in the Internet Routing Table: 174
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 53
Max AS path prepend of ASN ( 50404) 51
Prefixes from unregistered ASNs in the Routing Table: 1058
Unregistered ASNs in the Routing Table: 298
Number of 32-bit ASNs allocated by the RIRs: 5521
Number of 32-bit ASNs visible in the Routing Table: 4297
Prefixes from 32-bit ASNs in the Routing Table: 13488
Number of bogon 32-bit ASNs visible in the Routing Table: 1
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 1423
Number of addresses announced to Internet: 2659750524
Equivalent to 158 /8s, 136 /16s and 146 /24s
Percentage of available address space announced: 71.8
Percentage of allocated address space announced: 71.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.3
Total number of prefixes smaller than registry allocations: 165622

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

Prefixes being announced by APNIC Region ASes: 112928
Total APNIC prefixes after maximum aggregation: 34186
APNIC Deaggregation factor: 3.30
Prefixes being announced from the APNIC address blocks: 115203
Unique aggregates announced from the APNIC address blocks: 48071
APNIC Region origin ASes present in the Internet Routing Table: 4874
APNIC Prefixes per ASN: 23.64
APNIC Region origin ASes announcing only one prefix: 1208
APNIC Region transit ASes present in the Internet Routing Table: 837
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 38
Number of APNIC region 32-bit ASNs visible in the Routing Table: 790
Number of APNIC addresses announced to Internet: 729306816
Equivalent to 43 /8s, 120 /16s and 86 /24s
Percentage of available APNIC address space announced: 85.2

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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: 163340
Total ARIN prefixes after maximum aggregation: 81800
ARIN Deaggregation factor: 2.00
Prefixes being announced from the ARIN address blocks: 164118
Unique aggregates announced from the ARIN address blocks: 75830
ARIN Region origin ASes present in the Internet Routing Table: 15929
ARIN Prefixes per ASN: 10.30
ARIN Region origin ASes announcing only one prefix: 5997
ARIN Region transit ASes present in the Internet Routing Table: 1667
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 45
Number of ARIN addresses announced to Internet: 1074759808
Equivalent to 64 /8s, 15 /16s and 136 /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, 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: 119570
Total RIPE prefixes after maximum aggregation: 61272
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 123307
Unique aggregates announced from the RIPE address blocks: 79253
RIPE Region origin ASes present in the Internet Routing Table: 17570
RIPE Prefixes per ASN: 7.02
RIPE Region origin ASes announcing only one prefix: 8310
RIPE Region transit ASes present in the Internet Routing Table: 2826
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 53
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2528
Number of RIPE addresses announced to Internet: 655931876
Equivalent to 39 /8s, 24 /16s and 185 /24s
Percentage of available RIPE address space announced: 95.4

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, 61952-62463, 196608-200191
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: 53287
Total LACNIC prefixes after maximum aggregation: 10033
LACNIC Deaggregation factor: 5.31
Prefixes being announced from the LACNIC address blocks: 58668
Unique aggregates announced from the LACNIC address blocks: 27473
LACNIC Region origin ASes present in the Internet Routing Table: 2055
LACNIC Prefixes per ASN: 28.55
LACNIC Region origin ASes announcing only one prefix: 547
LACNIC Region transit ASes present in the Internet Routing Table: 396
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 35
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 926
Number of LACNIC addresses announced to Internet: 146607128
Equivalent to 8 /8s, 189 /16s and 12 /24s
Percentage of available LACNIC address space announced: 87.4

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: 11689
Total AfriNIC prefixes after maximum aggregation: 2591
AfriNIC Deaggregation factor: 4.51
Prefixes being announced from the AfriNIC address blocks: 12338
Unique aggregates announced from the AfriNIC address blocks: 4222
AfriNIC Region origin ASes present in the Internet Routing Table: 692
AfriNIC Prefixes per ASN: 17.83
AfriNIC Region origin ASes announcing only one prefix: 206
AfriNIC Region transit ASes present in the Internet Routing Table: 146
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 8
Number of AfriNIC addresses announced to Internet: 48554560
Equivalent to 2 /8s, 228 /16s and 226 /24s
Percentage of available AfriNIC address space announced: 48.2

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 2948 11558 951 Korea Telecom (KIX)
17974 2729 902 88 PT TELEKOMUNIKASI INDONESIA
7545 2120 319 111 TPG Internet Pty Ltd
4755 1800 392 191 TATA Communications formerly
9829 1556 1251 42 BSNL National Internet Backbo
9583 1322 102 544 Sify Limited
9498 1228 309 72 BHARTI Airtel Ltd.
7552 1176 1080 13 Vietel Corporation
4808 1139 2119 340 CNCGROUP IP network: China169
24560 1097 382 167 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 3032 3688 53 BellSouth.net Inc.
22773 2299 2939 138 Cox Communications, Inc.
1785 2147 686 131 PaeTec Communications, Inc.
18566 2051 379 178 MegaPath Corporation
20115 1681 1659 599 Charter Communications
4323 1632 1081 413 Time Warner Telecom
701 1508 11144 779 MCI Communications Services,
30036 1379 309 572 Mediacom Communications Corp
7018 1310 17746 855 AT&T WorldNet Services
6983 1294 756 580 ITC^Deltacom

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 1980 544 16 OJSC "Vimpelcom"
34984 1366 244 224 TELLCOM ILETISIM HIZMETLERI A
20940 1215 460 914 Akamai Technologies European
31148 1011 45 19 FreeNet ISP
13188 898 99 42 TOV "Bank-Inform"
6849 860 363 39 JSC UKRTELECOM,
8551 793 370 41 Bezeq International
6830 772 2327 425 UPC Distribution Services
12479 685 798 53 Uni2 Autonomous System
35228 551 246 16 Avatar Broadband Limited

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 3443 1833 96 NET Servicos de Comunicao S.A
10620 2695 436 199 Telmex Colombia S.A.
18881 1778 908 20 Global Village Telecom
7303 1738 1161 233 Telecom Argentina Stet-France
8151 1371 2857 429 UniNet S.A. de C.V.
11830 868 364 15 Instituto Costarricense de El
27947 858 93 89 Telconet S.A
6503 790 434 60 AVANTEL, S.A.
6147 789 373 27 Telefonica Del Peru
7738 780 1498 36 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 1819 112 5 Sudanese Mobile Telephone (ZA
24863 846 338 26 LINKdotNET AS number
6713 598 653 27 Itissalat Al-MAGHRIB
8452 421 956 9 TEDATA
24835 298 144 9 RAYA Telecom - Egypt
3741 247 921 209 The Internet Solution
29571 232 21 14 Ci Telecom Autonomous system
15706 219 32 6 Sudatel Internet Exchange Aut
36992 205 509 30 Etisalat MISR
29975 192 668 21 Vodacom

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
28573 3443 1833 96 NET Servicos de Comunicao S.A
6389 3032 3688 53 BellSouth.net Inc.
4766 2948 11558 951 Korea Telecom (KIX)
17974 2729 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2695 436 199 Telmex Colombia S.A.
22773 2299 2939 138 Cox Communications, Inc.
1785 2147 686 131 PaeTec Communications, Inc.
7545 2120 319 111 TPG Internet Pty Ltd
18566 2051 379 178 MegaPath Corporation
8402 1980 544 16 OJSC "Vimpelcom"

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

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

ASN No of nets Net Savings Description
6389 3032 2979 BellSouth.net Inc.
17974 2729 2641 PT TELEKOMUNIKASI INDONESIA
10620 2695 2496 Telmex Colombia S.A.
22773 2299 2161 Cox Communications, Inc.
1785 2147 2016 PaeTec Communications, Inc.
7545 2120 2009 TPG Internet Pty Ltd
4766 2948 1997 Korea Telecom (KIX)
8402 1980 1964 OJSC "Vimpelcom"
18566 2051 1873 MegaPath Corporation
36998 1819 1814 Sudanese Mobile Telephone (ZA

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

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

Bad AS Designation Network Transit AS Description
62828 UNALLOCATED 8.21.130.0/24 4323 Time Warner Telecom
62850 UNALLOCATED 8.25.147.0/24 46887 Lightower Fiber Netw
62734 UNALLOCATED 8.31.128.0/24 6939 Hurricane Electric
62773 UNALLOCATED 8.35.180.0/22 3356 Level 3 Communicatio
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
62719 UNALLOCATED 12.27.130.0/24 4323 Time Warner Telecom
62861 UNALLOCATED 12.37.197.0/24 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 Communications

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

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

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.120.0/21 36351 SoftLayer Technologies Inc.
23.91.160.0/22 36493 3757277 Canada Inc. (oa 295.c

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 /8:16 /9:11 /10:31 /11:92 /12:252
/13:474 /14:936 /15:1637 /16:12837 /17:6745 /18:11337
/19:23149 /20:33056 /21:35776 /22:50416 /23:43925 /24:251938
/25:828 /26:987 /27:453 /28:48 /29:73 /30:25
/31:0 /32:15

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

ASN No of nets Total ann. Description
18566 2006 2051 MegaPath Corporation
36998 1786 1819 Sudanese Mobile Telephone (ZA
6389 1699 3032 BellSouth.net Inc.
8402 1681 1980 OJSC "Vimpelcom"
22773 1549 2299 Cox Communications, Inc.
30036 1220 1379 Mediacom Communications Corp
1785 1163 2147 PaeTec Communications, Inc.
11492 1145 1182 Cable One
6983 1036 1294 ITC^Deltacom
22561 977 1253 Digital Teleport, Inc

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

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

1:917 2:870 3:3 4:16 5:784 6:21
8:612 12:1884 13:3 14:896 15:11 16:3
17:19 18:19 20:36 23:619 24:1752 27:1701
31:1505 32:45 33:2 34:5 36:104 37:1918
38:919 39:3 40:182 41:3218 42:241 44:14
46:2087 47:10 49:703 50:863 52:12 54:44
55:5 56:4 57:25 58:1150 59:584 60:369
61:1498 62:1227 63:1977 64:4401 65:2331 66:4149
67:2124 68:1094 69:3289 70:908 71:509 72:2022
74:2581 75:322 76:305 77:1204 78:1030 79:674
80:1274 81:1055 82:632 83:754 84:611 85:1273
86:382 87:1016 88:520 89:1570 90:151 91:5727
92:620 93:1613 94:2088 95:1507 96:519 97:350
98:1082 99:41 100:32 101:694 103:3838 105:532
106:144 107:246 108:540 109:2008 110:971 111:1134
112:605 113:812 114:752 115:1046 116:1015 117:830
118:1230 119:1282 120:338 121:770 122:1879 123:1262
124:1386 125:1442 128:635 129:232 130:355 131:663
132:350 133:159 134:310 135:72 136:277 137:252
138:350 139:170 140:206 141:344 142:551 143:403
144:498 145:90 146:554 147:435 148:789 149:359
150:153 151:486 152:414 153:207 154:46 155:517
156:311 157:419 158:285 159:787 160:360 161:457
162:945 163:252 164:628 165:582 166:280 167:638
168:1041 169:123 170:1147 171:185 172:12 173:1733
174:662 175:542 176:1315 177:2574 178:1883 179:324
180:1600 181:886 182:1423 183:474 184:626 185:1125
186:2673 187:1464 188:1976 189:1261 190:7270 192:7074
193:5476 194:4032 195:3379 196:1334 197:1058 198:4791
199:5511 200:6061 201:2532 202:9005 203:8940 204:4533
205:2629 206:2894 207:2820 208:3962 209:3707 210:3092
211:1629 212:2176 213:1973 214:872 215:84 216:5429
217:1722 218:624 219:320 220:1270 221:587 222:332
223:554

End of report
_______________________________________________
bgp-stats mailing list
bgp-stats@lists.apnic.net
http://mailman.apnic.net/mailman/listinfo/bgp-stats
Posted by Admin at 10:39 AM

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)