Autonomous system
AS12638 AS12638 Duesseldorf
Unclassified RIPE
Summary
Telefonica Germany
telecom isp business
A netname dated February 1994, still carrying the name of the company that registered it.
What it's used for
- Carrier connectivity in Germany. 49,152 addresses in three IPv4 prefixes, one observed BGP neighbour, and no IPv6 announced.
Notable
193.7.128.0/19is netnameDE-MEDIAWAYS-19940202— the oldest allocation date in the whole of this sweep.- The other two are
DE-MEDIAWAYS-990907andDE-MEDIAWAYS-20120425. - The registry contact on all three is
mediaWays Hostmaster, while the holder is Telefonica Germany GmbH & Co.OHG. 5.1.128.0/17holds 32,768 of the 49,152 addresses.- Nine sampled addresses were queried and none returned a name.
Interesting
- A record from early 1994 predates the commercial Internet in Germany by most measures. The three netnames span eighteen years and three naming conventions: a full eight-digit date, the two-digit form of the late nineties, and the modern eight-digit form again after the year 2000 made the short version untenable.
- mediaWays was absorbed long ago and the name survives only here, in the contact field of blocks that changed hands with it. Address registrations are transferred by editing the holder and leaving everything else, so the contact fields accumulate the names of every company an asset has passed through.
- A carrier of this size announcing no IPv6 at all under this number, with one observed neighbour, means the number does one specific job inside a much larger organisation.
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 |
|---|---|---|
| AS6805 | Telefonica Germany GmbH & Co.OHG | 180 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-30, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 3 prefixes · 49.15K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| DE | Germany | 3 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS12638- Registry name
- AS12638
- Registrant
- MDA-Z
- Abuse contact
- abuse.de@telefonica.com
- Registered
- 1970-01-01
- Last changed
- 2019-12-04
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- E-Plus Mobilfunk GmbH
- Also known as
- Telefonica Germany
- Peering policy
- No
- IRR as-set
as-eplus- Website
- http://www.02online.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 · 3 valid, 0 with no ROA
- ROAs
- 5 authorising AS12638
- ASPA
- no ASPA record
- IRR
- 100% registered · 3 of 3 announcements
- Route objects
- 4 naming AS12638
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: 448 networks and 1,849 prefixes, as published 2026-10-30. 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