株式会社アット東京

AT TOKYO Corporation
Data as of 2026-07-26
GLEIF verified
Complete entity footprint
2 linked clusters · 34 netblocks · 81,190 IPv4 addresses · 7 IPv6 prefixes
This organisation's clusters combined by evidence — shared GLEIF corporate family — not name similarity, so genuinely different organisations that share a name are excluded.
View the full entity page →
LEI
353800WMNXPU1J77JR51
Registered name
株式会社アット東京
Jurisdiction
JP
Ultimate parent
セコム株式会社
529900TYCL9N3E9PGE47
Cluster stats
Netblocks16 · 20,227 IPv4 addresses
IPv6 3 prefixes (largest 2405:1800::/32)
Cluster ID214401595
RegistryBGP
Owner jurisdictionJP
Customersfind customers using this network →
Evidence & provenance ?
Attribution GLEIF legal-entity match
Legal identityLEI 353800WMNXPU1J77JR51
Shared handles clustered on 2 shared RIR contact/maintainer handles
Registry names 2 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

Footprint over time

6 weekly snapshots · JSON
16 0 netblocks since 2026-07-05
2026-07-05 peak 16 2026-07-26

IP Ranges (16)

⬇ export CSV
CIDR Org name Registry Status Confidence
101.203.88.186/32 AT TOKYO Corporation PEERINGDB ASSIGNED ● high
110.44.20.0/22 AT TOKYO Corporation BGP ANNOUNCED ● high
119.59.64.0/21 AT TOKYO Corporation BGP ANNOUNCED ● high
165.100.192.0/20 AT TOKYO Corporation BGP ANNOUNCED ● high
202.13.124.0/22 AT TOKYO Corporation BGP ANNOUNCED ● high
202.243.223.0/24 AT TOKYO Corporation BGP ANNOUNCED ● high
203.80.6.0/23 AT TOKYO Corporation BGP ANNOUNCED ● high
203.89.128.0/22 AT TOKYO Corporation BGP ANNOUNCED ● high
203.223.24.0/21 AT TOKYO Corporation BGP ANNOUNCED ● high
210.171.224.146/32 AT TOKYO Corporation PEERINGDB ASSIGNED ● high
210.173.176.247/32 AT TOKYO Corporation PEERINGDB ASSIGNED ● high
211.132.0.0/20 AT TOKYO Corporation BGP ANNOUNCED ● high
219.99.128.0/20 AT TOKYO Corporation BGP ANNOUNCED ● high
2001:7fa:7:1::9999:1/128 AT TOKYO Corporation PEERINGDB ASSIGNED ● high
2001:de8:c::9999:1/128 AT TOKYO Corporation PEERINGDB ASSIGNED ● high
2405:1800::/32 AT TOKYO Corporation BGP ANNOUNCED ● high

IPv6 ranges (3)

CIDR
2405:1800::/32
2001:7fa:7:1::9999:1/128
2001:de8:c::9999:1/128

Corporate group (2 confirmed entities)

+2 additional unconfirmed candidates not shown — full list (JSON)

Network trust

what's this?
RPKI hygiene: C how networks compare →
75.0% of checked blocks have valid RPKI ROA coverage (12 of 16)
No discrepancies found among checked blocks.

NIC Handles

AS9999 AS9999