Autonomous system
AS4503 EGINTERLINK - Grady Memorial Hospital
Unclassified ARIN
Summary
Grady Memorial Hospital
enterprise legacy
EGINTERLINK — the network of Grady Memorial Hospital in Atlanta, Georgia, the flagship facility of Grady Health System and one of the largest public safety-net hospitals in the southeastern United States.
What it's used for
- Enterprise connectivity for a hospital campus: clinical systems, medical imaging, administrative IT, and staff access.
- Announces a handful of
/24s carved out of a legacy138.33.0.0allocation plus a192.35.xblock.
Notable
- A hospital, not a service provider — the address space serves the institution itself rather than downstream customers.
- The ASN was registered with ARIN in April 1995, and the org record predates it further, so this is a genuinely early institutional allocation rather than a recycled number.
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 2026-11-07, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 8 prefixes · 2.30K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 8 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS4503- Registry name
- EGINTERLINK
- Registrant
- Grady Memorial Hospital Corporation
- Abuse contact
- admin@metricnetservices.com
- Registered
- 1995-04-04
- Last changed
- 2019-01-30
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 9 with no ROA
- ROAs
- 0 authorising AS4503
- ASPA
- no ASPA record
- IRR
- 100% registered · 9 of 9 announcements
- Route objects
- 10 naming AS4503
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