Home ASN LookupAS42908

AS42908 CZ-NORDICTELECOMREGIONAL O2 Czech Republic, a.s.

🇨🇿

Org handle: ORG-STaN1-RIPE

ORIGINAL AS CZ-NORDICTELECOMREGIONAL

RIPE NCCallocated

Announced Prefixes (BGP)

44total

35 IPv49 IPv6

IPv4 Addresses

Allocated (RIR)183,296

Announced (BGP)183,296

IPv6 Addresses

Allocated (RIR)2.9×10³⁰

Announced (BGP)2.9×10³⁰

Prefix Limit (IPv4)

200

Prefix Limit (IPv6)

Country

🇨🇿 CZ

RIR

RIPE NCC

Status

allocated

Allocated

2007-05-09

Announced Prefixes

(BGP)44

Prefix	RPKI	IRR	Last Seen
5.102.48.0/20	Valid	RIPE	2026-10-11
31.10.56.0/21	Valid	RIPE	2026-10-11
45.159.116.0/22	Valid	RIPE	2026-10-11
46.183.56.0/21	Valid	RIPE	2026-10-11
46.231.72.0/21	Valid	RIPE	2026-10-11
77.95.192.0/21	Valid	RIPE	2026-10-11
78.136.128.0/18	Valid	RIPE	2026-10-11
80.78.136.0/22	Valid	RIPE	2026-10-11
80.79.0.0/22	Valid	RIPE	2026-10-11
80.87.176.0/20	Valid	RIPE	2026-10-11

1-10 of 44

1 / 5

Allocated Prefixes

(RIR)44

Prefix	Country	RIR	Status
5.102.48.0/20	🇨🇿 CZ	RIPENCC	allocated
31.10.56.0/21	🇨🇿 CZ	RIPENCC	allocated
45.159.116.0/22	🇨🇿 CZ	RIPENCC	allocated
46.183.56.0/21	🇨🇿 CZ	RIPENCC	allocated
46.231.72.0/21	🇨🇿 CZ	RIPENCC	allocated
77.95.192.0/21	🇨🇿 CZ	RIPENCC	allocated
78.136.128.0/18	🇨🇿 CZ	RIPENCC	allocated
80.78.136.0/22	🇨🇿 CZ	RIPENCC	allocated
80.79.0.0/22	🇨🇿 CZ	RIPENCC	allocated
80.87.176.0/20	🇨🇿 CZ	RIPENCC	allocated

1-10 of 44

1 / 5

All 44 announced prefixes of AS42908 →

BGP Neighbours

(seen in AS paths)

Upstreams (1)

Networks AS42908 hands its own prefixes to: transit providers, or peers at an exchange.

AS5610O2 CZECH REPUBLIC O2 Czech Republic, A.S44

Downstreams (2)

Networks whose own prefixes AS42908 passes on: usually its customers.

AS33442Zebra Technologies Corporation1
AS202643NETSERV NetSERV, S.R.O1

Transfer History

Registry transfers of AS42908 between organisations.

AS42908Transfer · 2025-04-01
Nordic Telecom Regional s.r.o.
RIPE NCC
→
O2 Czech Republic, a.s.
RIPE NCC
AS42908M&A · 2022-07-28
Nordic Telecom s.r.o
RIPE NCC
→
Nordic Telecom Regional s.r.o.
RIPE NCC

Date	Resource	From	To	Type
2025-04-01	AS42908	Nordic Telecom Regional s.r.o. RIPE NCC	O2 Czech Republic, a.s. RIPE NCC	Transfer
2022-07-28	AS42908	Nordic Telecom s.r.o RIPE NCC	Nordic Telecom Regional s.r.o. RIPE NCC	M&A

ASPA

No ASPA

Abuse Contact

External Links

RIPE Whois RIPEstat

Learn more

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
ASPA explainedWhy AS42908 should publish an ASPA object
IPv4 transfers in the RIPE NCC regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Open

GEThttps://api.ipctl.io/v1/asn/42908

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/42908" | jq