asn.dev

Autonomous system

AS173 NTTECL-AS Nippon Telegraph and Telephone Corporation

Unclassified ARIN

IPv4 addresses 8.70K 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly JP
Flagged prefixes 0 none

Summary

Nippon Telegraph and Telephone (NTT)

Japan · AI-generated

transit legacy

An early allocation (NTTECL-AS) belonging to Nippon Telegraph and Telephone

Corporation, Japan's incumbent telecommunications carrier.

What it's used for

  • Carrier and enterprise networking operated by NTT.

Notable

  • One of the few very low AS numbers held outside the United States, reflecting NTT's early connection to the global internet.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Address space

Summary

Full explorer
CountryNamePrefixes
JPJapan2

Registry

Allocation record

via ARIN RDAP
Registry
ARIN
Handle
AS173
Registry name
NTTECL-AS
Registrant
Nippon Telegraph and Telephone Corporation
Abuse contact
rd-it-helpdesk@ml.ntt.com
Registered
2008-09-04
Last changed
2023-01-11
Status
active

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

No IC3 indicators Nothing from the FBI IC3 feed.

Threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check