Autonomous system
AS43070 JAW-AS
Residential RIPE Cable/DSL/ISP
Summary
JAW.cz
isp residential cable regional
The AS handle JAW-AS is held by JAW.cz s.r.o.
What it's used for
- The address space carries residential and business internet access, evidenced by netnames
CZ-JAW-20070529andCZ-SPEEDNET-20100902and reverse DNS entries likenet-3-0.jaw.cz. - The AS announces 8704 IPv4 addresses across 6 prefixes and 2 IPv6 prefixes, with 30 observed neighbours, indicating a regional access provider rather than a transit hub.
- Traffic consists of subscriber eyeballs for the Děčín region, serving cable and DSL customers through JAW.cz's local infrastructure.
Notable
- Registrants include both JAW.cz s.r.o. and Speednet, s.r.o., with Speednet holding the 46.30.144.0/21 and 188.92.8.0/21 blocks under netnames
CZ-SPEEDNET-20100902andCZ-SPEEDNET-20090421. - The address inventory is subdivided into six distinct IPv4 prefixes, reflecting site-by-site segmentation of the corporate estate.
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 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Peering.cz | Prague, Czech Republic | 185.0.20.52 |
| NIX.CZ - Neutral Internet eXchange for the Czech Republic | Prague, Czech Republic | 91.210.16.106 |
Transit providers
10 upstream, 0 downstream and 16 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 2026-10-22, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 6 prefixes · 8.70K addresses IPv6 2 prefixes
| Country | Name | Prefixes |
|---|---|---|
| CZ | Czechia | 8 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS43070- Registry name
- JAW-AS
- Registrant
- JAW-MNT
- Abuse contact
- abuse@jaw.cz
- Registered
- 2007-06-01
- Last changed
- 2025-07-07
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- JAW.cz s.r.o
- Network type
- Cable/DSL/ISP
- Scope
- Regional
- Traffic ratio
- Mostly Inbound
- Peering policy
- Open
- IRR as-set
AS-JAW- Present at
- 2 exchanges
- Facilities
- 2 facilities
- Website
- https://www.jaw.cz/
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
- 56% valid · 5 valid, 4 with no ROA
- ROAs
- 5 authorising AS43070
- ASPA
- no ASPA record
- IRR
- 100% registered · 9 of 9 announcements
- Route objects
- 12 naming AS43070
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 1,779 prefixes, as published 2026-10-23. 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