asn.dev

Autonomous system

AS3603 University de Los Andes

Education APNIC

IPv4 addresses 65.54K 7 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly CO
Exchanges 0 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Summary

Universidad de los Andes

Colombia · AI-generated

education research legacy

The network of the Universidad de los Andes (Uniandes), a private research university in Bogotá, Colombia. It announces the legacy 157.253.0.0/16 block long associated with the university.

What it's used for

  • Campus networking in Bogotá: teaching, research, labs, libraries, and administrative systems.
  • University-hosted services and academic connectivity for students and staff.

Notable

  • Institutional address space — a full /16 held by a single university, which is generous by modern standards and typical of allocations made before IPv4 scarcity set in.
  • Hosts behind it are campus machines and university users, not broadband subscribers or hosting customers.

Interesting

  • Colombian universities were among the country's earliest internet participants, and the resources are now administered through LACNIC, the Latin American and Caribbean registry, which inherited the region's early ARIN-era allocations.

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

3 upstream, 0 downstream and 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS19429ETB - Colombia59
AS262191LIBERTY NETWORKS DE COLOMBIA S.A.S57
AS3700Cloud 9 Internet, Inc.4

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, 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 · 65.54K addresses IPv6 0 prefixes

CountryNamePrefixes
COColombia7

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS3603
Registry name
3603
Registrant
University de Los Andes
Abuse contact
ja.pulido@uniandes.edu.co
Registered
1994-05-18
Last changed
2008-09-23
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 2 valid, 0 with no ROA
ROAs
2 authorising AS3603
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
3 naming AS3603

Reputation

Classification and threat

Education University, school or national research and education network.

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: 432 networks and 1,768 prefixes, as published 2026-10-12. 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