Autonomous system profile

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

AS25878

Announcement observedARIN

QNST-DC01 - Quinstreet, Inc. · QNST-DC01

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

Last active10/1/2026, 19:23:32Snapshot expired

View network topology RDAP registration

ASN: AS25878
Registration country: United States
Name: QNST-DC01 - Quinstreet, Inc.
Abbreviation: QNST-DC01
Registration date: 10/22/2007, 20:25:59
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
173.226.108.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/1/2026, 16:00:00	✓	×	Currently valid
216.211.163.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/1/2026, 16:00:00	✓	×	Currently valid
216.211.170.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/1/2026, 16:00:00	✓	×	Currently valid
216.211.175.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/1/2026, 16:00:00	✓	×	Currently valid
64.84.40.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/1/2026, 16:00:00	✓	×	Currently valid
67.106.145.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/1/2026, 16:00:00	✓	×	Currently valid
70.42.22.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/1/2026, 16:00:00	✓	×	Currently valid

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

Registration and sources

Organization: QNST-DC01 - Quinstreet, Inc.
RIR: ARIN
Registration country: United States
Registration date: 10/22/2007, 20:25:59
Abuse contact: neteng@quinstreet.com

Snapshot trend

10/1/2026, 19:23:327 v40 v67 Upstream · 1 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