Autonomous system
AS6547 DCT-ASN
Hosting ARIN
Summary
DCT Technologies
hosting legacy
DCT-ASN belongs to DCT Technologies, Inc., a small technology and internet-hosting company in Green Bay, Wisconsin. It has held the number since 1996.
What it's used for
DCT originates a single /20, 66.18.16.0/20, and takes transit from TDS Telecom. Reverse DNS across the block is dominated by hosting and mail infrastructure: web1.hostmail.com, load balancers, name servers, virtual machines, and per-customer mail hosts such as mail.<customer>.com. The company also trades as Digital Magic Interactive.
Notable
This is a hosting network rather than an eyeball one. The address space is used for shared web and email hosting and for customer-facing servers, not for broadband subscribers, and much of it is sub-let to other small hosting brands whose names appear in the reverse DNS.
At roughly 4,096 addresses it is a genuinely small operator holding a genuinely old AS number, which is a common pattern among the mid-1990s ARIN registrations.
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.
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS4181 | TDS TELECOM | 59 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 4.10K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 1 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS6547- Registry name
- DCT-ASN
- Registrant
- DCT Technologies, Inc.
- Abuse contact
- dnsadmin@dminteractive.com
- Registered
- 1996-08-29
- Last changed
- 2003-03-07
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 1 with no ROA
- ROAs
- 0 authorising AS6547
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 1 naming AS6547
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: 442 networks and 1,782 prefixes, as published 2026-10-16. 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