Autonomous system profile

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

AS23427

Announcement observedARIN

Glenbard HSD #87 · GLENBARD-HSD87

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

Last active10/1/2026, 12:40:39Snapshot expired

View network topology RDAP registration

ASN: AS23427
Registration country: United States
Name: Glenbard HSD #87
Abbreviation: GLENBARD-HSD87
Registration date: 11/12/2009, 21:08:52
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
204.145.108.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/1/2026, 08:00:00	✓	×	Historical record

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

Registration and sources

Organization: Glenbard HSD #87
RIR: ARIN
Registration country: United States
Registration date: 11/12/2009, 21:08:52
Abuse contact: Nate_Dhamers@glenbard.org

Snapshot trend

10/1/2026, 12:40:391 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