Autonomous system
AS205103 TELEGRAPH-AS Telegraph42 Management GmbH
Unclassified RIPE NSP
Summary
Telegraph42
transit telecom colocation
TELEGRAPH-AS is operated by Telegraph42 Management GmbH.
What it's used for
- The address space carries transit and interconnect traffic, with netname
DE-TELEGRAPH-20171106registered to Telegraph42 Management GmbH. - The AS announces 1024 IPv4 addresses and 1 IPv6 prefix against 935 observed neighbours, a ratio that indicates a transit or peering role rather than an access network.
- Traffic from this AS consists of interconnect connections, wavelengths, dark fiber, and Internet transit services provided to business and operator clients.
Notable
- The registrant for the announced prefix matches the AS holder, Telegraph42 Management GmbH.
- The address inventory consists of a single /22 IPv4 block and a single /30 IPv6 prefix, representing a compact estate for a transit provider.
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
Recorded at 2 exchanges in 2 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| DE-CIX Frankfurt | Frankfurt, Germany | 80.81.195.227 |
| Neutral Internet Exchange | Amsterdam, Netherlands | 193.239.119.24 |
Transit providers
19 upstream, 7 downstream and 59 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-31, 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 · 1.02K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| DE | Germany | 2 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS205103- Registry name
- TELEGRAPH-AS
- Registrant
- de-telegraph-1-mnt
- Abuse contact
- techsupport@europeer.de
- Registered
- 2017-11-08
- Last changed
- 2019-12-14
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Telegraph42
- Also known as
- T42
- Network type
- NSP
- Scope
- Global
- Traffic ratio
- Balanced
- Peering policy
- Selective
- IRR as-set
AS205103:AS-TG42- Present at
- 2 exchanges
- Facilities
- 1 facilities
- Website
- http://tele-graph.de/
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 100% valid · 2 valid, 0 with no ROA
- ROAs
- 3 authorising AS205103
- ASPA
- no ASPA record
- IRR
- 100% registered · 2 of 2 announcements
- Route objects
- 9 naming AS205103
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: 447 networks and 1,843 prefixes, as published 2026-11-01. 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