AS25878 — QNST-DC01
AS25878 announces 7 IPv4 prefixes covering 2,560 addresses and 0 IPv6 prefixes.
About this network
The AS handle QNST-DC01 is held by QuinStreet, Inc.
What it's used for
- The address space carries corporate infrastructure for an online marketing company, evidenced by registrant netnames like INAP-SFO-QUINSTREET-10878 and XOXO-67-106-145-0, and reverse DNS entries such as mail-163-64.neoquin.com and 126-41.84.64.qds-i.net.
- The AS announces 2560 IPv4 addresses across 7 prefixes and maintains 8 observed neighbours, a ratio consistent with an internal corporate estate rather than a transit or access network.
Notable
- Registrants across the inventory consistently identify as QuinStreet or Quinstreet, Inc., aligning with the AS holder.
- QuinStreet is a publicly traded online marketing company based in Foster City, California, that helps generate web traffic for clients.
- The inventory consists of seven IPv4 prefixes with no IPv6 prefixes, showing a finely subdivided corporate address space.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.
Announced prefixes
- 64.84.40.0/23
- 67.106.145.0/24
- 70.42.22.0/23
- 173.226.108.0/24
- 216.211.163.0/24
- 216.211.170.0/23
- 216.211.175.0/24
Upstream networks
- AS3356 Level 3 Parent, LLC
- AS14743 Unitas Global
- AS6461 Zayo Bandwidth
- AS7018 AT&T Enterprises, LLC
- AS22773 Cox Communications Inc.
- AS33651 Comcast Cable Communications, LLC
- AS33667 Comcast Cable Communications, LLC
- AS3549 Level 3 Parent, LLC
Adjacent networks
BGP / ASN / CIDR
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IPv4
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IPv6
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Search Results
IPv4 Prefixes
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IPv6 Prefixes
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Total Prefixes
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Unique /24s
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⚠ SUSPICIOUS PREFIX ANNOUNCEMENTS DETECTED