asn.dev

Autonomous system

AS11838 HGTC-ASN

Education ARIN

IPv4 addresses 2.05K 4 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

Horry-Georgetown Technical College

United States · AI-generated

education legacy

HGTC-ASN belongs to Horry-Georgetown Technical College, a public two-year technical college in South Carolina's coastal Horry and Georgetown counties, with campuses around Conway, Myrtle Beach and Georgetown.

What it's used for

  • Campus networking for a community-college system: classroom, lab, library, administrative and student-facing services across its sites.
  • RIS observes four IPv4 prefixes carrying about 2,048 addresses, no IPv6, and a single observed neighbour. One upstream and four /23s is exactly what a small institution that wants its own AS number looks like. There is no peering fan-out and no sign of transit or hosting activity.

Notable

  • Every announced block registers to the college itself: three 165.166.x /23s and 199.5.206.0/23 under the older NETBLK-SC-HORTECH handle. First-party registrations across the whole inventory, one RIR, no third-party names anywhere. Nothing broker-shaped and nothing leased.
  • The three 165.166.x blocks sit inside a /16 that ARIN shows allocated to Spirit Communications in Columbia, South Carolina, back in 1993. The college's own reassignments inside a state carrier's legacy /16 is ordinary provider SWIP history, and the college is still the registered holder of each /23.

Interesting

  • A college this size usually holds an AS number for redundancy or as a legacy multihoming arrangement rather than for scale. With 2,048 addresses and one upstream, this one is doing very little routing work today.
  • No PTRs came back on the addresses sampled. That is a fact about the sample, not about the college's DNS, and nothing is inferred from it.

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
AS2711Spirit Communications232

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 4 prefixes · 2.05K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America4

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS11838
Registry name
HGTC-ASN
Registrant
Horry-Georgetown Technical College
Abuse contact
abuse@hgtc.edu
Registered
2024-01-16
Last changed
2024-12-17
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 4 with no ROA
ROAs
0 authorising AS11838
ASPA
no ASPA record
IRR
0% registered · 0 of 4 announcements 1 other origin
Route objects
0 naming AS11838

Reputation

Classification and threat

Education University, school or national research and education network.

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