Autonomous system
AS31246 NETBOX-AS O2 Czech Republic, a.s.
Unclassified RIPE Cable/DSL/ISP
Summary
O2 Czech Republic
isp residential mobile czech
The AS handle NETBOX-AS is operated by O2 Czech Republic, a.s.
What it's used for
- The address space carries customer and infrastructure traffic, evidenced by reverse DNS entries such as
ip4-nat-83-240-63-255.cust.nbox.czandmpop-ostrava-jnpr-s7113-gw.mng.netbox.cz. - The network announces 66560 IPv4 addresses across 5 prefixes and 3 IPv6 prefixes, while maintaining only 1 observed neighbour, a ratio indicative of an access or eyeball network rather than a transit provider.
Notable
- All registrants for the announced prefixes are listed as "5610-Tech-and-Admin; O2 Czech Republic, a.s.; Abuse-C Role", which aligns directly with the AS holder.
- The address inventory consists of five distinct IPv4 blocks, including 83.240.0.0/17 and 95.82.128.0/18, all registered under netnames beginning with CZ-CZNET.
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 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Peering.cz | Prague, Czech Republic | 185.0.20.32 |
Transit providers
1 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS16246 | O2 Czech Republic, a.s. | 365 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-02, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 5 prefixes · 66.56K addresses IPv6 2 prefixes
| Country | Name | Prefixes |
|---|---|---|
| CZ | Czechia | 7 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS31246- Registry name
- NETBOX-AS
- Registrant
- AS5610-MTN
- Abuse contact
- abuse@o2.cz
- Registered
- 2004-03-30
- Last changed
- 2024-06-20
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- NETBOX
- Also known as
- NETBOX
- Network type
- Cable/DSL/ISP
- Scope
- Europe
- Traffic ratio
- Balanced
- Peering policy
- Open
- IRR as-set
AS-NETBOX-CZ- Facilities
- 5 facilities
- Website
- http://www.netbox.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
- 100% valid · 7 valid, 0 with no ROA
- ROAs
- 11 authorising AS31246
- ASPA
- no ASPA record
- IRR
- 100% registered · 7 of 7 announcements
- Route objects
- 12 naming AS31246
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: 449 networks and 1,846 prefixes, as published 2026-11-03. 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