asn.dev

Autonomous system

AS36720 HEREINTOWN-NET

Unclassified ARIN

IPv4 addresses 4.10K 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Two-Way Radio Service, Inc.

United States of America · AI-generated

business corporate communications

The AS handle HEREINTOWN-NET is held by Two-Way Radio Service, Inc.

What it's used for

  • The address space carries corporate infrastructure for a two-way radio and fleet communication provider, evidenced by the netname TWRCOMMUNICATIONS-NET-4 and reverse DNS entries pointing to twrcommunications.com.
  • The AS announces a single IPv4 prefix of 4096 addresses with one observed neighbour, indicating a small, self-contained corporate network rather than a transit or access provider.

Notable

  • The registrant Two-Way Radio Service, Inc. matches the AS holder, confirming direct ownership of the address space.
  • The address inventory consists of a single /20 block, which is finely subdivided for internal use but lacks the scale of a regional ISP or large enterprise.

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

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS7795LUMOS Networks, Inc.60

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, 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 1 prefixes · 4.10K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America1

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS36720
Registry name
TWRCOMMUNICATIONS-COM
Registrant
Two-Way Radio Service, Inc.
Abuse contact
abuse@twrcommunications.com
Registered
2006-03-29
Last changed
2026-10-06
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
0 authorising AS36720
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS36720

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: 446 networks and 1,852 prefixes, as published 2026-10-27. 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