// ASN

AS9999

ATTOKYO AT TOKYO Corporation, JP

Detailed information about the Autonomous System. Need another one? Look up a different ASN.

ASN: AS9999
Organization: AT TOKYO Corporation expire=24
Description: ATTOKYO AT TOKYO Corporation, JP
Registry (RIR): JPIRR
Created: 2021-01-21
Updated: 2025-09-10
IPv4 Prefixes: 10
IPv6 Prefixes: 1

IPv4 Prefixes

10 total

110.44.20.0/22
119.59.64.0/21
165.100.192.0/20
202.13.124.0/22
202.243.223.0/24
203.223.24.0/21
203.80.6.0/23
203.89.128.0/22
211.132.0.0/20
219.99.128.0/20

IPv6 Prefixes

1 total

2405:1800::/32

What is AS9999?

AS9999 is an Autonomous System Number (ASN) assigned to AT TOKYO Corporation expire=24. An ASN identifies a network or group of IP prefixes operated under a common routing policy in the BGP protocol.

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