Autonomous system
AS51057 NEXXTRA
Residential RIPE Cable/DSL/ISP
Summary
nexxtra
isp residential cable dsl
The AS handle NEXXTRA is held by nexxtra GmbH.
What it's used for
- The address space carries residential broadband traffic, as indicated by the PeeringDB classification of Cable/DSL/ISP and the netnames
DE-NEXXTRA-20100201andDE-NEXXTRA-20181210. - The AS announces 3072 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, while maintaining 99 observed neighbours; this ratio of limited address space against a high neighbour count indicates a transit or wholesale role rather than a large-scale access network.
- Traffic from this AS consists of subscriber eyeballs and white-labeled cloud services, consistent with nexxtra's business as a telecommunications provider specializing in white-labeled solutions.
Notable
- Registrants for both announced prefixes are listed as
Maintainer Nexxtra; nexxtra GmbH; Abuse-C Role, which agrees with the AS holder. - The operator is also known as 42one GmbH, a name that appears in PeeringDB records.
- The inventory consists of two distinct IPv4 blocks, 109.235.232.0/21 and 192.145.76.0/22, along with a single IPv6 prefix 2a0c:600::/29.
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 4 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| DE-CIX Frankfurt | Frankfurt, Germany | 80.81.192.22 |
| DE-CIX Dusseldorf | Düsseldorf, Germany | 185.1.171.46 |
| DE-CIX Munich | Munich, Germany | 185.1.208.5 |
| DE-CIX Hamburg | Hamburg, Germany | 185.1.210.239 |
Transit providers
18 upstream, 0 downstream and 20 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 2026-10-15, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 2 prefixes · 3.07K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| DE | Germany | 3 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS51057- Registry name
- NEXXTRA
- Registrant
- NEXXTRA-MNT
- Abuse contact
- abuse@nexxtra.de
- Registered
- 2010-05-25
- Last changed
- 2025-11-07
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- nexxtra
- Also known as
- 42one GmbH
- Network type
- Cable/DSL/ISP
- Scope
- Europe
- Traffic ratio
- Mostly Inbound
- Peering policy
- Open
- IRR as-set
RIPE::AS51057:AS-NEXXTRA- Present at
- 4 exchanges
- Facilities
- 2 facilities
- Website
- https://nexxtra.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
- 3 authorising AS51057
- ASPA
- no ASPA record
- IRR
- 100% registered · 3 of 3 announcements
- Route objects
- 3 naming AS51057
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
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 1,781 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