Autonomous system
AS3949 NTTA-3946
Unclassified ARIN
IPv4 addresses
33.79K
64 prefixes
IPv6 prefixes
16
counted as prefixes, not addresses
Countries
1
mostly US
Flagged prefixes
24
see address space
Summary
NTT America, Inc.
isp hosting legacy
A customer-facing ASN of NTT America, Inc. (NTTA-3946), the US arm of the
Japanese telecom group NTT.
What it's used for
- Announces dozens of small prefixes drawn from NTT's ranges across North America, Europe, and Asia-Pacific — the shape of an ASN used to originate customer and hosted networks rather than to carry backbone transit.
- NTT's global transit network is a separate ASN, [AS2914](https://asn.ipinfo.app/AS2914).
Notable
- NTT America traces back to Verio, the US hosting and internet provider NTT acquired in 2000; the company holds a contiguous run of low-numbered ASNs in the 3936–3949 range, of which this is the last.
- Provider address space, so an IP here belongs to NTT or one of its customers, not to a single organisation.
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
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 80 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS3946- Registry name
- NTTA-3946
- Registrant
- NTT America, Inc.
- Abuse contact
- abuse@ntt.net
- Registered
- 2001-01-31
- Last changed
- 2012-03-02
- 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