AS131923

Name: AS131923 — MCAT Ltd.
Creator: ipdex

MCAT Ltd. ISP registered in Japan

10IPv4 prefixes

1IPv6 prefixes

100%RPKI-valid

#44,210AS Rank

326/327RIS visibility

#232Rank in Japan

2011-08-04Allocated

MCAT Ltd. (AS131923) — ISP, registered in Japan. announces 10 IPv4 prefixes + 1 IPv6 prefixes. Rank in Japan: #232. Allocated: 2011-08-04.

IPv4 10IPv6 1

Announced prefixes · 11

v4 103.95.104.0/22 valid
v4 120.50.192.0/20 valid
v4 133.247.136.0/21 valid
v4 133.247.240.0/20 valid
v4 133.88.87.0/24 valid
v4 133.88.88.0/22 valid
v4 133.88.92.0/23 valid
v4 133.88.94.0/24 valid
v4 218.45.64.0/19 valid
v4 219.100.156.0/22 valid
v6 2401:5ac0::/32 valid

RPKI: rpki.cloudflare.com · 2026-06-17

Routing: 10 IPv4 · 1 IPv6 announced · RIS visibility 326/327 RIS peers · RIPEstat · 2026-06-17

Prefix history

Announced prefixes Source: ipdex daily snapshot · sparse rows, value holds until the next change (steps)

Data table

Day	Announced prefixes
2026-06-12	11
2026-06-13	11

Internet Exchanges · 6

BBIX Tokyo Tokyo 20 Gbps
JPNAP Osaka Osaka 20 Gbps
BBIX Amsterdam Amsterdam 300 Mbps
BBIX Hong Kong Hong Kong 300 Mbps
BBIX Singapore Singapore 300 Mbps
BBIX US-West West Coast 300 Mbps

AS topology · Customer cone 1

Providers · 3

AS17676 SoftBank Corp.
AS4713 NTT DOCOMO BUSINESS,Inc.
AS2519 ARTERIA Networks Corporation

Peers · 15

AS9002 RETN Limited
AS137409 GSL Networks Pty LTD
AS7713 PT Telekomunikasi Indonesia
AS1828 Unitas Global
AS35280 F5 Networks SARL
AS199524 G-Core Labs S.A.

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