asn.dev

Autonomous system

AS21603 Universidad La Salle, AC

Unclassified LACNIC

IPv4 addresses 4.61K 7 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly MX
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Universidad La Salle

Mexico · AI-generated

education university mexico

AS21603 is operated by Universidad La Salle, AC.

What it's used for

  • The address space carries university infrastructure, evidenced by the reverse DNS record ip-200-10-243-64.ulsa.mx and registrant netnames consistently attributed to Universidad La Salle, AC.
  • The AS announces 4608 IPv4 addresses across 7 prefixes with only 2 observed neighbours, a ratio indicative of an internal institutional network rather than a transit or large-scale access provider.

Notable

  • All RDAP registrants for the announced prefixes align with the announcer, listing Universidad La Salle, AC for every block from 200.13.88.0/21 to 200.33.98.0/24.
  • The inventory consists of a mix of larger blocks like 200.13.88.0/21 and smaller /24s, reflecting a segmented internal estate typical of a single corporate or academic entity.

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

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS18734Operbes, S.A. de C.V.986
AS13591Mexico Red de Telecomunicaciones, S. de R.L. de C.V.55

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 7 prefixes · 4.61K addresses IPv6 0 prefixes

CountryNamePrefixes
MXMexico7

Registry

Allocation record

LACNIC · via Atlas (registry data)
Registry
LACNIC
Registered
2001-05-30
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 18 with no ROA
ROAs
0 authorising AS21603
ASPA
no ASPA record
IRR
83% registered · 15 of 18 announcements 2 other origin
Route objects
15 naming AS21603

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