asn.dev

Autonomous system

AS12048 HALLCON-ASN-01 - Hallcon Corporation

Unclassified ARIN

IPv4 addresses 256 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Hallcon Corporation

United States · AI-generated

enterprise business

A crew-transport contractor's /24, named after the Kansas suburb it is operated from.

What it's used for

  • Corporate connectivity. 256 addresses in a single /24 with two observed BGP neighbours and no IPv6 announced.

Notable

  • The AS handle is HALLCON-ASN-01 and the block, 67.208.58.0/24, is netname HALLCON-LENEXA-01.
  • Both carry an -01 suffix, in a scheme that expects more of each.
  • First seen in routing data in April 2007.
  • Two neighbours rather than one.

Interesting

  • Lenexa is a suburb on the Kansas side of the Kansas City metropolitan area, and putting the town in the netname is site-level bookkeeping: the name says which building the addresses terminate in, which matters the day somebody has to trace a circuit.
  • Hallcon moves railway crews. Train operators cannot leave a crew at the end of a shift wherever the train stopped, so a contractor drives them between yards, hotels and terminals around the clock. It is a business made of vehicles, schedules and dispatch systems.
  • Two upstreams for a single /24 is a dispatch operation buying redundancy. If the office goes offline the crews still have to be moved, and somebody has to be able to tell them where.

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
AS701Verizon Business54
AS20231Charter Communications Inc5

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-07, 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 · 256 addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America1

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS12048
Registry name
HALLCON-ASN-01
Registrant
Hallcon Corporation
Abuse contact
techops@hallcon.com
Registered
2020-02-04
Last changed
2020-02-04
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
0 authorising AS12048
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
2 naming AS12048

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: 454 networks and 1,852 prefixes, as published 2026-11-08. 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