131937 JCV Joetsu Cable Vision, JP
Adjacency: 3 Upstream: 3 Downstream: 0
Upstream Adjacent AS list
AS17676 GIGAINFRA SoftBank Corp., JP
AS6939 HURRICANE, US
AS2497 IIJ Internet Initiative Japan Inc., JP
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 5668 AS131937 ORIGIN Originate: 29184 /17.17 Transit: 0 /0.00 JCV Joetsu Cable Vision, JP
Aggregation Suggestions
Filter: Aggregates, Specifics
This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.
Rank AS AS Name Current Wthdw Aggte Annce Redctn % 53010 AS131937 JCV Joetsu Cable Vision, JP 9 0 0 9 0 0.00% Prefix AS Path Aggregation Suggestion 103.118.92.0/22 6939 131937 103.152.66.0/23 6939 131937 126.251.0.0/19 6939 131937 126.251.32.0/21 6939 131937 126.251.112.0/21 6939 131937 126.251.128.0/20 6939 131937 170.249.64.0/21 6939 131937 170.249.96.0/19 6939 131937 202.223.12.0/22 6939 131937
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS131937 15 More Specifics 19 Total Advertisements JCV Joetsu Cable Vision, JP
103.118.92.0/23 103.118.92.0/22
103.118.94.0/23 103.118.92.0/22
126.251.0.0/19 126.251.0.0/16
126.251.0.0/20 126.251.0.0/16
126.251.16.0/20 126.251.0.0/16
126.251.32.0/21 126.251.0.0/16
126.251.32.0/22 126.251.0.0/16
126.251.36.0/22 126.251.0.0/16
170.249.64.0/22 170.249.64.0/21
170.249.68.0/22 170.249.64.0/21
170.249.96.0/20 170.249.96.0/19
170.249.112.0/20 170.249.96.0/19
202.223.12.0/22 202.220.0.0/14
202.223.12.0/23 202.220.0.0/14
202.223.14.0/23 202.220.0.0/14
whois: 402590
IANA has recorded AS131937 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS131937\n % [whois.apnic.net]
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% Information related to 'AS131072 - AS132095'
as-block: AS131072 - AS132095
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% Information related to 'AS131905 - AS131992'
as-block: AS131905 - AS131992
descr: JPNIC-4Byte-ASBLOCK-AP
country: JP
admin-c: JNIC1-AP
tech-c: JNIC1-AP
remarks: for assignment to JPNIC members
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mnt-lower: MAINT-JPNIC
last-modified: 2016-01-27T00:24:03Z
source: APNIC
role: Japan Network Information Center
address: Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda
address: Chiyoda-ku, Tokyo 101-0047, Japan
country: JP
phone: +81-3-5297-2311
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tech-c: JE53-AP
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last-modified: 2022-01-05T03:04:02Z
source: APNIC
% Information related to 'AS131937'
aut-num: AS131937
as-name: JCV
descr: Joetsu Cable Vision
import: from AS23640 100 accept ANY
import: from AS17676 100 accept ANY
export: to AS23640 announce AS131937
export: to AS17676 announce AS131937
country: JP
admin-c: JP00164408
tech-c: JP00164408
last-modified: 2018-07-25T22:59:26Z
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remarks: defaults to Japanese output, use the /e switch for English
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source: JPNIC
% Information related to 'AS131072 - AS132095'
as-block: AS131072 - AS132095
descr: APNIC 32-bit ASN block
admin-c: IA55-AP
tech-c: IH123-AP
mnt-by: MNT-APJII-ID
mnt-lower: MNT-APJII-ID
last-modified: 2026-02-25T07:12:54Z
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last-modified: 2026-02-25T04:06:45Z
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address: ID-NIC
address: Cyber Building 11th Floor
address: Jakarta 12710
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phone: +62-21-52960634
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last-modified: 2024-07-10T05:48:59Z
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