Autonomous system profile

Review registration details, announced prefixes, network relationships and historical snapshots.

AS393937

Announcement observedARIN

Medical Card System, Inc. · MCS-PUBLIC-NET

This profile is assembled from CHA.LA's normalized registration, routing and observation snapshots.

Last active10/29/2026, 20:08:10Snapshot expired

View network topology RDAP registration

ASN: AS393937
Registration country: Puerto Rico
Name: Medical Card System, Inc.
Abbreviation: MCS-PUBLIC-NET
Registration date: 4/30/2015, 19:42:14
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
192.107.111.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	10/15/2026, 16:00:00	10/29/2026, 16:00:00	✓	×	Currently valid

BGP prefixes have no geographic country; the column is marked not applicable.

Registration and sources

Organization: Medical Card System, Inc.
RIR: ARIN
Registration country: Puerto Rico
Registration date: 4/30/2015, 19:42:14
Abuse contact: itvm@medicalcardsystem.com

Snapshot trend

10/29/2026, 20:08:101 v40 v61 Upstream · 0 Uncertain

10/29/2026, 20:07:190 v40 v60 Upstream · 0 Uncertain

ASN route snapshotThis page reads collected ASN, prefix, relationship and history data. External interfaces are used for initial collection and scheduled refreshes.Source keys: cha-la-external-routing · iana-rdap-asn-bootstrap · rir-rdap-asn