asn.dev

Autonomous system

AS13511 UNIVI-2-ASN

Unclassified ARIN

IPv4 addresses 2.05K 3 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 5 0 downstream
Flagged prefixes 0 none

Summary

Univision Communications

United States · AI-generated

media business hosting

The netname is UNIVISION-IPV4-0, labelling the protocol version and numbering from zero.

What it's used for

  • A broadcaster's network. 2,048 addresses across five IPv4 prefixes, six observed BGP neighbours, and no IPv6 announced.

Notable

  • All five prefixes are netname UNIVISION-IPV4-0, registered to the company.
  • The five are a /22 and the four /24s immediately after it, covering contiguous space.
  • The AS handle is UNIVI-2-ASN.
  • Fifteen addresses were queried for reverse DNS and none returned a name.

Interesting

  • Putting IPV4 in a netname only makes sense if you expect a matching IPv6 record. Somebody named this in anticipation of the other half, numbered it zero to leave room for a first and a second, and the company still announces no IPv6 at all. The naming outran the network.
  • Announcing a /22 and the four /24s next to it, rather than the single /20 they would form, keeps each piece separately routable. For a broadcaster that means being able to move a service between providers without moving everything else with it.
  • Six upstreams for 2,048 addresses is the connectivity profile of a company whose audience arrives in spikes around live events, buying more paths than the address count would suggest it needs.

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

5 upstream, 0 downstream and 5 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS33132Crown Castle Fiber LLC251
AS3257GTT Communications Inc.150
AS33657Comcast Cable Communications, LLC74
AS33667Comcast Cable Communications, LLC46
AS33651Comcast Cable Communications, LLC14

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, 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 3 prefixes · 2.05K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America3

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS13511
Registry name
UNIVI-2-ASN
Registrant
Univision Communications Inc.
Abuse contact
ARIN-Notifications@univision.net
Registered
2008-09-18
Last changed
2022-11-15
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 12 valid, 0 with no ROA
ROAs
31 authorising AS13511
ASPA
no ASPA record
IRR
100% registered · 12 of 12 announcements
Route objects
61 naming AS13511

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 1,784 prefixes, as published 2026-10-19. 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