Autonomous system profile

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

AS19721

Announcement observedARIN

MHN - Magellan Health Services · MHN

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

Last active10/1/2026, 03:05:18Snapshot expired

View network topology RDAP registration

ASN: AS19721
Registration country: United States
Name: MHN - Magellan Health Services
Abbreviation: MHN
Registration date: 2/7/2001, 05:00:00
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
204.193.64.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 00:00:00	10/22/2026, 16:00:00	✓	×	Currently valid
204.193.64.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 00:00:00	10/22/2026, 16:00:00	✓	×	Currently valid
204.193.71.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 00:00:00	10/22/2026, 16:00:00	✓	×	Currently valid
204.193.72.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 00:00:00	10/22/2026, 16:00:00	✓	×	Currently valid
204.193.74.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 00:00:00	10/22/2026, 16:00:00	✓	×	Currently valid
204.193.75.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 00:00:00	10/22/2026, 16:00:00	✓	×	Currently valid
204.193.80.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 00:00:00	10/22/2026, 16:00:00	✓	×	Currently valid
204.193.80.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 00:00:00	10/22/2026, 16:00:00	✓	×	Currently valid
204.193.84.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 00:00:00	10/22/2026, 16:00:00	✓	×	Currently valid
204.193.84.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 00:00:00	10/22/2026, 16:00:00	✓	×	Currently valid
204.193.85.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 00:00:00	10/22/2026, 16:00:00	✓	×	Currently valid
204.193.86.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 00:00:00	10/22/2026, 16:00:00	✓	×	Currently valid
204.193.88.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 00:00:00	10/22/2026, 16:00:00	✓	×	Currently valid
204.193.93.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 00:00:00	10/22/2026, 16:00:00	✓	×	Currently valid

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

Registration and sources

Organization: MHN - Magellan Health Services
RIR: ARIN
Registration country: United States
Registration date: 2/7/2001, 05:00:00
Abuse contact: webba3@magellanhealth.com

Snapshot trend

10/1/2026, 03:05:1814 v40 v62 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 · rir-rdap-asn · iana-rdap-asn-bootstrap