Autonomous system profile

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

AS55111

Announcement observedARIN

Calvert County · CALVERT-COUNTY

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

Last active10/5/2026, 04:57:31Snapshot expired

View network topology RDAP registration

ASN: AS55111
Registration country: United States
Name: Calvert County
Abbreviation: CALVERT-COUNTY
Registration date: 3/7/2013, 19:39:37
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
167.102.218.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/21/2026, 00:00:00	10/5/2026, 00:00:00	✓	×	Currently valid

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

Registration and sources

Organization: Calvert County
RIR: ARIN
Registration country: United States
Registration date: 3/7/2013, 19:39:37
Abuse contact: lippertr@calvertnet.k12.md.us

Snapshot trend

10/5/2026, 04:57:311 v40 v61 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