asn.dev

Autonomous system

AS19718 NCNI

Unclassified ARIN

IPv4 addresses 4.10K 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 1 1 downstream
Flagged prefixes 0 none

Summary

Microelectronics Center of North Carolina

United States of America · AI-generated

research business semiconductor

The AS handle NCNI is held by Microelectronics Center of North Carolina.

What it's used for

  • The address space is registered under the netname NCREN-B22 with registrant MCNC, indicating a dedicated research and development network.
  • The AS announces 4096 IPv4 addresses and 1 IPv6 prefix, with only 2 observed neighbours, which characterizes it as a small, isolated internal network rather than a transit or access provider.

Notable

  • The RDAP registrant MCNC aligns directly with the AS holder, confirming consistent ownership of the address space.
  • The inventory consists of a single contiguous IPv4 block (152.22.240.0/20) and a single IPv6 prefix (2610:28:f020::/48), reflecting a compact and self-contained corporate estate.

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

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

1 upstream, 1 downstream and 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS81MCNC92

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 1 prefixes · 4.10K addresses IPv6 1 prefixes

CountryNamePrefixes
USUnited States of America2

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS19718
Registry name
NCNI
Registrant
MCNC
Abuse contact
abuse@mcnc.org
Registered
2001-02-07
Last changed
2026-06-10
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 2 valid, 0 with no ROA
ROAs
2 authorising AS19718
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
5 naming AS19718

Reputation

Classification and threat

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

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,773 prefixes, as published 2026-10-13. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check