Autonomous system
AS6428 CDM - CDM
Hosting ARIN
Summary
CDM On-Line / Primary Network (Hostirian)
hosting legacy
Registered as CDM — CDM On-Line, doing business as Primary Network — of St. Louis, Missouri. The same Borman Drive address is today a Hostirian data centre, Primary Network's hosting business having become Hostirian.
What it's used for
- Web hosting, virtual servers, and colocation. Reverse DNS across its prefixes resolves to
primarynetwork.com,hostirian.com, and customer hosting brands — the signature of a hosting provider, not an eyeball ISP. - It announces a long tail of small prefixes, mostly /24s, consistent with hosting customers spread over legacy blocks.
Notable
- Primary Network began hosting websites in 1995, and the hosting arm was spun out under the Hostirian name in 2001; the ASN and its registrant record still carry the original CDM name.
- The ARIN record dates to April 1996, within the sequential run of assignments covering the mid-6400s.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-08, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 39 prefixes · 23.04K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 40 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS6428- Registry name
- CDM
- Registrant
- CDM
- Abuse contact
- clmalone@primary.net
- Registered
- 1996-04-12
- Last changed
- 1996-04-12
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 1% valid · 1 valid, 94 with no ROA
- ROAs
- 1 authorising AS6428
- ASPA
- no ASPA record
- IRR
- 97% registered · 92 of 95 announcements 1 other origin
- Route objects
- 117 naming AS6428
Reputation
Classification and threat
Hosting Datacenter or cloud provider. Addresses are servers, not people.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 455 networks and 1,854 prefixes, as published 2026-11-09. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere