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.

Sunday, June 16, 2013

[bgp-stats] Routing Table Report - Japan view

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

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

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

BGP routing table entries examined: 456030
Prefixes after maximum aggregation: 185788
Deaggregation factor: 2.45
Unique aggregates announced to Internet: 226304
Total ASes present in the Internet Routing Table: 44306
Prefixes per ASN: 10.29
Origin-only ASes present in the Internet Routing Table: 34710
Origin ASes announcing only one prefix: 16159
Transit ASes present in the Internet Routing Table: 5876
Transit-only ASes present in the Internet Routing Table: 150
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 59
Max AS path prepend of ASN ( 56484) 51
Prefixes from unregistered ASNs in the Routing Table: 1022
Unregistered ASNs in the Routing Table: 445
Number of 32-bit ASNs allocated by the RIRs: 4793
Number of 32-bit ASNs visible in the Routing Table: 3720
Prefixes from 32-bit ASNs in the Routing Table: 10834
Special use prefixes present in the Routing Table: 25
Prefixes being announced from unallocated address space: 226
Number of addresses announced to Internet: 2642367916
Equivalent to 157 /8s, 127 /16s and 85 /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: 94.6
Total number of prefixes smaller than registry allocations: 160047

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

Prefixes being announced by APNIC Region ASes: 109594
Total APNIC prefixes after maximum aggregation: 33502
APNIC Deaggregation factor: 3.27
Prefixes being announced from the APNIC address blocks: 111119
Unique aggregates announced from the APNIC address blocks: 45249
APNIC Region origin ASes present in the Internet Routing Table: 4852
APNIC Prefixes per ASN: 22.90
APNIC Region origin ASes announcing only one prefix: 1221
APNIC Region transit ASes present in the Internet Routing Table: 819
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 25
Number of APNIC region 32-bit ASNs visible in the Routing Table: 575
Number of APNIC addresses announced to Internet: 725261280
Equivalent to 43 /8s, 58 /16s and 155 /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: 158963
Total ARIN prefixes after maximum aggregation: 80312
ARIN Deaggregation factor: 1.98
Prefixes being announced from the ARIN address blocks: 159557
Unique aggregates announced from the ARIN address blocks: 73979
ARIN Region origin ASes present in the Internet Routing Table: 15732
ARIN Prefixes per ASN: 10.14
ARIN Region origin ASes announcing only one prefix: 5986
ARIN Region transit ASes present in the Internet Routing Table: 1643
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: 1081894208
Equivalent to 64 /8s, 124 /16s and 101 /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: 117256
Total RIPE prefixes after maximum aggregation: 60085
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 120850
Unique aggregates announced from the RIPE address blocks: 78113
RIPE Region origin ASes present in the Internet Routing Table: 17231
RIPE Prefixes per ASN: 7.01
RIPE Region origin ASes announcing only one prefix: 8178
RIPE Region transit ASes present in the Internet Routing Table: 2838
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 59
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2358
Number of RIPE addresses announced to Internet: 656594020
Equivalent to 39 /8s, 34 /16s and 212 /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: 48482
Total LACNIC prefixes after maximum aggregation: 9349
LACNIC Deaggregation factor: 5.19
Prefixes being announced from the LACNIC address blocks: 52877
Unique aggregates announced from the LACNIC address blocks: 24831
LACNIC Region origin ASes present in the Internet Routing Table: 1958
LACNIC Prefixes per ASN: 27.01
LACNIC Region origin ASes announcing only one prefix: 583
LACNIC Region transit ASes present in the Internet Routing Table: 361
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: 762
Number of LACNIC addresses announced to Internet: 131959848
Equivalent to 7 /8s, 221 /16s and 140 /24s
Percentage of available LACNIC address space announced: 78.7

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: 10806
Total AfriNIC prefixes after maximum aggregation: 2499
AfriNIC Deaggregation factor: 4.32
Prefixes being announced from the AfriNIC address blocks: 11401
Unique aggregates announced from the AfriNIC address blocks: 3923
AfriNIC Region origin ASes present in the Internet Routing Table: 635
AfriNIC Prefixes per ASN: 17.95
AfriNIC Region origin ASes announcing only one prefix: 191
AfriNIC Region transit ASes present in the Internet Routing Table: 131
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: 46361600
Equivalent to 2 /8s, 195 /16s and 108 /24s
Percentage of available AfriNIC address space announced: 46.1

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 2949 11561 922 Korea Telecom (KIX)
17974 2545 855 91 PT TELEKOMUNIKASI INDONESIA
7545 1999 320 108 TPG Internet Pty Ltd
4755 1743 391 191 TATA Communications formerly
9829 1511 1205 40 BSNL National Internet Backbo
9583 1218 91 503 Sify Limited
7552 1154 1080 13 Vietel Corporation
4808 1144 2124 334 CNCGROUP IP network: China169
9498 1129 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 3007 3691 75 bellsouth.net, inc.
18566 2065 382 184 Covad Communications
1785 1992 677 124 PaeTec Communications, Inc.
22773 1984 2927 122 Cox Communications, Inc.
20115 1665 1618 615 Charter Communications
4323 1625 1138 406 Time Warner Telecom
701 1534 11143 799 UUNET Technologies, Inc.
30036 1334 300 643 Mediacom Communications Corp
7018 1298 11039 831 AT&T WorldNet Services
11492 1218 216 359 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 1676 544 16 Corbina telecom
34984 1276 244 222 BILISIM TELEKOM
2118 1069 97 13 EUnet/RELCOM Autonomous Syste
20940 892 312 696 Akamai Technologies European
13188 824 98 82 Educational Network
31148 802 40 25 FreeNet ISP
8551 774 370 44 Bezeq International
6830 766 2376 440 UPC Distribution Services
12479 677 786 59 Uni2 Autonomous System
34744 676 173 59 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 2822 1557 111 NET Servicos de Comunicao S.A
10620 2661 418 209 TVCABLE BOGOTA
7303 1732 1155 221 Telecom Argentina Stet-France
8151 1282 2721 401 UniNet S.A. de C.V.
18881 995 844 20 Global Village Telecom
6503 865 434 65 AVANTEL, S.A.
27947 845 89 107 Telconet S.A
3816 715 306 85 Empresa Nacional de Telecomun
7738 698 1370 35 Telecomunicacoes da Bahia S.A
6147 665 374 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 883 290 32 LINKdotNET AS number
6713 542 617 25 Itissalat Al-MAGHRIB
8452 455 956 9 TEDATA
24835 344 80 8 RAYA Telecom - Egypt
3741 261 922 219 The Internet Solution
15706 222 32 6 Sudatel Internet Exchange Aut
29571 205 17 9 Ci Telecom Autonomous system
12258 192 28 66 Vodacom Internet Company
29975 191 667 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
6389 3007 3691 75 bellsouth.net, inc.
4766 2949 11561 922 Korea Telecom (KIX)
28573 2822 1557 111 NET Servicos de Comunicao S.A
10620 2661 418 209 TVCABLE BOGOTA
17974 2545 855 91 PT TELEKOMUNIKASI INDONESIA
18566 2065 382 184 Covad Communications
7545 1999 320 108 TPG Internet Pty Ltd
1785 1992 677 124 PaeTec Communications, Inc.
22773 1984 2927 122 Cox Communications, Inc.
4755 1743 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 2822 2711 NET Servicos de Comunicao S.A
17974 2545 2454 PT TELEKOMUNIKASI INDONESIA
10620 2661 2452 TVCABLE BOGOTA
4766 2949 2027 Korea Telecom (KIX)
7545 1999 1891 TPG Internet Pty Ltd
18566 2065 1881 Covad Communications
1785 1992 1868 PaeTec Communications, Inc.
22773 1984 1862 Cox Communications, Inc.
8402 1676 1660 Corbina telecom
4755 1743 1552 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 /14:900 /15:1602 /16:12710 /17:6653 /18:11154
/19:22149 /20:32047 /21:34408 /22:47641 /23:42276 /24:239639
/25:1308 /26:1660 /27:854 /28:46 /29:66 /30:18
/31:0 /32:17

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

ASN No of nets Total ann. Description
18566 2016 2065 Covad Communications
6389 1726 3007 bellsouth.net, inc.
8402 1372 1676 Corbina telecom
22773 1292 1984 Cox Communications, Inc.
36998 1231 1237 MOBITEL
30036 1202 1334 Mediacom Communications Corp
11492 1180 1218 Cable One
1785 1062 1992 PaeTec Communications, Inc.
6983 1010 1137 ITC^Deltacom
10620 991 2661 TVCABLE BOGOTA

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

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

1:830 2:841 3:3 4:19 5:791 6:12
8:556 12:1926 13:3 14:835 15:11 16:3
17:10 20:17 23:370 24:1766 27:1474 31:1324
32:43 33:2 34:5 36:40 37:1859 38:872
39:2 40:170 41:2750 42:195 44:6 46:1934
47:2 49:655 50:735 52:12 54:35 55:7
57:27 58:1151 59:575 60:314 61:1405 62:1127
63:2024 64:4321 65:2162 66:4182 67:2053 68:1082
69:3262 70:785 71:488 72:1917 74:2476 75:323
76:303 77:1135 78:1047 79:616 80:1277 81:1011
82:654 83:577 84:541 85:1158 86:450 87:996
88:537 89:1753 90:147 91:5523 92:599 93:1674
94:1873 95:1655 96:514 97:346 98:1005 99:42
100:30 101:329 103:2784 105:517 106:146 107:208
108:513 109:1831 110:902 111:1043 112:546 113:814
114:709 115:964 116:962 117:801 118:1096 119:1314
120:379 121:731 122:1799 123:1220 124:1369 125:1375
128:637 129:226 130:326 131:665 132:359 133:155
134:268 135:67 136:222 137:242 138:359 139:192
140:210 141:332 142:533 143:378 144:496 145:93
146:506 147:388 148:680 149:371 150:158 151:523
152:419 153:189 154:42 155:413 156:268 157:396
158:279 159:730 160:342 161:447 162:428 163:221
164:598 165:496 166:273 167:594 168:1025 169:130
170:1051 171:182 172:21 173:1584 174:541 175:469
176:966 177:2070 178:1874 179:37 180:1461 181:464
182:1230 183:386 184:693 185:535 186:2284 187:1283
188:2152 189:1258 190:6858 192:6734 193:5669 194:4588
195:3432 196:1349 197:927 198:4479 199:5338 200:5991
201:2238 202:8829 203:8908 204:4515 205:2576 206:2797
207:2852 208:4049 209:3619 210:2961 211:1509 212:2182
213:1974 214:925 215:99 216:5232 217:1617 218:619
219:336 220:1281 221:557 222:322 223:456

End of report
_______________________________________________
bgp-stats mailing list
bgp-stats@lists.apnic.net
http://mailman.apnic.net/mailman/listinfo/bgp-stats
Posted by Admin at 11:33 AM

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)