asn.dev

Autonomous system

AS25921 LUS-FIBER-LCG

Unclassified ARIN

IPv4 addresses 60.16K 18 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 2 2 downstream
Flagged prefixes 0 none

Summary

LUS Fiber

United States of America · AI-generated

residential fiber louisiana isp

LUS-FIBER-LCG is operated by LUS Fiber, a regional internet service provider serving the Lafayette, Louisiana area.

What it's used for

  • The address space carries residential and business fiber access, evidenced by reverse DNS entries such as 74-80-31-255.bead.dyn.lusfiber.net and 76-72-31-255.whs.dyn.lusfiber.net, which indicate dynamic customer endpoints.
  • The AS announces 60,160 IPv4 addresses across 18 prefixes while maintaining only 4 observed neighbours, a ratio characteristic of an access network rather than a transit provider.

Notable

  • Registrants are predominantly consistent with the announcer, with most prefixes registered to LUS Fiber under the netname LUSNET-NET; however, the prefix 12.166.220.0/22 is registered to LAFAYETTE CITY-PARISH CON. GOV. with netname LAFAYETT43-216.
  • The inventory includes a mix of large blocks like 74.80.0.0/18 and smaller subdivisions, including government-registered space, reflecting a consolidated regional footprint.

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

ASNetworkPaths seen
AS3356Level 3 Parent, LLC1,868
AS7018AT&T Enterprises, LLC412

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, 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 18 prefixes · 60.16K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America18

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS25921
Registry name
LUS-FIBER-LCG
Registrant
LUS Fiber
Abuse contact
abuse@lusfiber.net
Registered
2002-05-31
Last changed
2018-06-20
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 38 with no ROA
ROAs
0 authorising AS25921
ASPA
no ASPA record
IRR
32% registered · 12 of 38 announcements
Route objects
12 naming AS25921

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 1,778 prefixes, as published 2026-10-20. 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