Autonomous system
AS6742 ATT-CH-0E AT&T EMEA dr6348
Unclassified AFRINIC
Summary
AT&T Global Network Services Nederland
enterprise legacy
ATT-CH-0E is one of the many small autonomous systems operated by AT&T Global Network Services, the managed-networking arm of AT&T, registered in RIPE through its Netherlands entity. The AT&T EMEA (dr6348) description is an internal AT&T service reference, not a company name.
What it's used for
- Managed enterprise connectivity rather than public internet service. The AS announces a single
/24, part of a provider-independent assignment held by AT&T with netnameCH-ITPRO-NETand a registered address in Basel, Switzerland — hence theCHin the handle. - No reverse DNS is published on the block, which is normal for a closed corporate network that has no reason to advertise its hosts.
Notable
- Read this as AT&T-operated addressing for a single enterprise site or service, not as an AT&T backbone AS. AT&T's global IP transit lives in far larger autonomous systems; this one exists to give one managed customer network its own routing identity.
- The registry country (Netherlands) is where the AT&T legal entity sits; the network it serves is in Switzerland. Registration country and traffic geography are not the same thing here.
Interesting
- Large managed-service carriers accumulate long tails of AS numbers like this one — each a leftover of a specific customer engagement, each too small to be worth reclaiming, each carrying an opaque internal code in its description forever.
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 |
|---|---|---|
| AS2686 | AT&T Enterprises, LLC | 60 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-16, 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 · 256 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| NL | Netherlands | 1 |
Registry
Allocation record
- Registry
- AFRINIC
- Handle
AS6742- Registry name
- ATT-CH-0E
- Registrant
- MAINT-AS2686
- Abuse contact
- peering@intl.att.com
- Registered
- 1970-01-01
- Last changed
- 2018-09-21
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 1 with no ROA
- ROAs
- 0 authorising AS6742
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 1 naming AS6742
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
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 1,783 prefixes, as published 2026-10-17. 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