asn.dev

Autonomous system

AS4713 OCN NTT Communications Corporation

Residential RIPE

IPv4 addresses 28.62M 164 prefixes
IPv6 prefixes 21 counted as prefixes, not addresses
Countries 1 mostly JP
Flagged prefixes 1 see address space

Summary

NTT OCN (Japan)

Japan · AI-generated

isp eyeball

OCN (OCN NTT Communications) — NTT's large consumer/business ISP in Japan, one

of the country's most widely used fixed-broadband providers.

What it's used for

  • Fixed broadband internet access for millions of Japanese homes and businesses.

Notable

  • A domestic "eyeball" network — distinct from AS2914, which is NTT's global IP-transit backbone. OCN is the retail ISP; 2914 is the international carrier.

Interesting

  • OCN rides on NTT's FLET'S fibre access infrastructure, the backbone of Japan's high fibre-broadband penetration.

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
JPJapan185

Registry

Allocation record

via RIPE RDAP
Registry
RIPE
Handle
AS4713
Registry name
OCN
Last changed
2025-10-20
Status
active

Reputation

Classification and threat

Residential Fixed-line consumer ISP. Addresses here are homes.

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