asn.dev

Autonomous system

AS21578 Universidad autonoma de Bucaramanga

Unclassified LACNIC

IPv4 addresses 512 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly CO
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Universidad Autonoma de Bucaramanga

Colombia · AI-generated

education university colombia

AS21578 is operated by Universidad Autonoma de Bucaramanga.

What it's used for

  • The address space carries university infrastructure, as indicated by the registrant netname 190.68.254.0 - 190.68.254.255 for the prefix 190.68.254.0/24.
  • The AS announces 512 IPv4 addresses across 2 prefixes and maintains 2 observed neighbours, a ratio consistent with a small, self-contained institutional network rather than a transit or large-scale access provider.

Notable

  • Registrants do not fully align with the announcer; 181.119.254.0/24 is registered to IFX Networks Argentina S.R.L. under the netname 181.119.0.0 - 181.119.255.255, while 190.68.254.0/24 is registered directly to the university.
  • The address inventory is small and fragmented, consisting of two /24 blocks, one of which appears to be leased or historically associated with a different 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
AS18747IFX Corporation59
AS19429ETB - Colombia59

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-25, 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 2 prefixes · 512 addresses IPv6 0 prefixes

CountryNamePrefixes
COColombia2

Registry

Allocation record

LACNIC · via Atlas (registry + RDAP)
Registry
LACNIC
Handle
AS21578
Registry name
21578
Registrant
Universidad autonoma de Bucaramanga
Abuse contact
vlozano@unab.edu.co
Registered
2001-05-25
Last changed
2016-09-30
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
50% valid · 1 valid, 1 with no ROA
ROAs
1 authorising AS21578
ASPA
no ASPA record
IRR
50% registered · 1 of 2 announcements
Route objects
2 naming AS21578

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: 443 networks and 1,779 prefixes, as published 2026-10-24. 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