asn.dev

Autonomous system

AS10 CSNET-EXT-AS

Unclassified ARIN

IPv4 addresses 256 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly US
Flagged prefixes 0 none

Summary

CSNET Coordination and Information Center

United States · AI-generated

education research legacy

A very early research-network allocation (CSNET-EXT-AS) tied to CSNET, the

Computer Science Network, and its Coordination and Information Center.

What it's used for

  • Historically, connecting university computer science departments that were not yet on the ARPANET.

Notable

  • A single-digit AS number reflects an allocation from the internet's earliest years. CSNET was an early research network, not a commercial ISP, and was run in part out of BBN in Cambridge, Massachusetts.

Interesting

  • CSNET was a key stepping stone between the ARPANET and the broader NSFNET-era internet, helping bring academic computing departments online.

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
USUnited States of America2

Registry

Allocation record

via ARIN RDAP
Registry
ARIN
Handle
AS10
Registry name
CSNET-EXT-AS
Registrant
CSNET Coordination and Information Center (CSNET-CIC)
Abuse contact
csoulia@genuity.net
Last changed
2000-04-18
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