asn.dev

Autonomous system

AS27661 Network Information Center Mexico

Unclassified LACNIC

IPv4 addresses 256 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly MX
Exchanges 0 recorded by PCH
Upstreams 4 0 downstream
Flagged prefixes 0 none

Summary

Network Information Center Mexico

Mexico · AI-generated

nic registry infrastructure

AS27661 is operated by Network Information Center Mexico.

What it's used for

  • The address space carries infrastructure for the national registry, identified by the netname 201.131.252.0 - 201.131.253.255 and registrant Network Information Center México.
  • The AS announces 256 IPv4 addresses and 1 IPv6 prefix, with 5 observed neighbours, indicating a small-scale infrastructure footprint typical of a registry or administrative body rather than a large transit or access provider.

Notable

  • The RDAP registrant Network Information Center México matches the AS holder name, confirming consistent ownership of the announced space.
  • The inventory consists of a single IPv4 prefix 201.131.252.0/24 and one IPv6 prefix 2001:1201:10::/48, representing a compact and focused address allocation.

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

4 upstream, 0 downstream and 4 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS28495Network Information Center Mexico57
AS28504Network Information Center Mexico29
AS28511Network Information Center Mexico6
AS22894Network Information Center Mexico2

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-27, 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 · 256 addresses IPv6 1 prefixes

CountryNamePrefixes
MXMexico2

Registry

Allocation record

LACNIC · via Atlas (registry + RDAP)
Registry
LACNIC
Handle
AS27661
Registry name
27661
Registrant
Network Information Center México
Abuse contact
ipadmin@nic.mx
Registered
2003-01-15
Last changed
2005-01-19
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
50% valid · 1 valid, 1 with no ROA
ROAs
2 authorising AS27661
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
10 naming AS27661

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: 447 networks and 1,852 prefixes, as published 2026-10-27. 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