Autonomous system
AS19389 GOLUB
Unclassified ARIN
Summary
Golub Corporation
retail business leased us
GOLUB is the autonomous system handle for Golub Corporation, a private retail company operating discount supermarkets and pharmacies in New York.
What it's used for
- The address space carries mixed traffic, with reverse DNS entries for the 72.43.85.0/24 block pointing to
syn-072-043-085-064.biz.spectrum.com, indicating business-class connectivity via Spectrum. - The AS announces 768 IPv4 addresses across 3 prefixes and maintains 2 observed neighbours, a ratio consistent with a small-scale business or internal corporate estate rather than a transit or large access provider.
Notable
- Registrants do not fully align with the announcer; while 72.43.85.0/24 is registered to GOLUB CORPORATION, 63.138.94.0/24 is registered to Windstream Communications LLC and 173.226.249.0/24 to Level 3 Parent, LLC, suggesting leased or historically allocated space.
- The inventory consists of three distinct /24 blocks, with no IPv6 prefixes announced, reflecting a modest and segmented address 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
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-16, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 3 prefixes · 768 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 3 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS19389- Registry name
- GOLUB
- Registrant
- GOLUB CORPORATION
- Abuse contact
- donwheatley@pricechopper.com
- Registered
- 2000-12-27
- Last changed
- 2024-05-07
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 67% valid · 2 valid, 1 with no ROA
- ROAs
- 2 authorising AS19389
- ASPA
- no ASPA record
- IRR
- 100% registered · 3 of 3 announcements
- Route objects
- 4 naming AS19389
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 1,783 prefixes, as published 2026-10-17. 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