Home Prefix Lookup178.17.80.0/20

178.17.80.0/20 - CZ NORDICTELECOMREGIONAL O2 Czech Republic, A.S (AS42908)

IPv4RIPE NCCallocatedAS42908CZ-NORDICTELECOMREGIONAL O2 Czech Republic, a.s. RPKI Valid

CIDR

178.17.80.0/20

IP Version

IPv4

Addresses

Mask

/20 (255.255.240.0)

Country

🇨🇿 Czechia

City

Prague (Praha 4)

RIR

RIPE NCC

Status

allocated

Allocated

2010-03-18

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
178.17.80.0/20	AS42908 CZ-NORDICTELECOMREGIONAL O2 Czech Republic, a.s.	Valid	RIPE	2026-10-12

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
178.17.80.0/20	AS42908	/20	ripe

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS42908	RIPE	mnt-nordictelecom	2025-04-01

More Specific Prefixes

Prefix	Country	Status
178.17.80.0/23	🇨🇿CZ	assigned
178.17.82.0/24	🇨🇿CZ	assigned
178.17.83.0/24	🇨🇿CZ	assigned
178.17.84.0/25	🇨🇿CZ	assigned
178.17.84.128/25	🇨🇿CZ	assigned
178.17.86.0/24	🇨🇿CZ	assigned
178.17.87.0/24	🇨🇿CZ	assigned
178.17.88.0/25	🇨🇿CZ	assigned
178.17.89.0/25	🇨🇿CZ	assigned
178.17.89.128/25	🇨🇿CZ	assigned
178.17.90.0/24	🇨🇿CZ	assigned
178.17.91.0/25	🇨🇿CZ	assigned
178.17.91.128/25	🇨🇿CZ	assigned
178.17.92.0/26	🇨🇿CZ	assigned
178.17.92.64/26	🇨🇿CZ	assigned
178.17.92.128/26	🇨🇿CZ	assigned
178.17.92.192/26	🇨🇿CZ	assigned
178.17.93.0/24	🇨🇿CZ	assigned
178.17.94.0/23	🇨🇿CZ	assigned

Transfer History

Registry transfers of 178.17.80.0/20, blocks inside it, or blocks containing it.

178.17.80.0/20Transfer · 2025-04-01
Nordic Telecom Regional s.r.o.
RIPE NCC
→
O2 Czech Republic, a.s.
RIPE NCC
178.17.80.0/20Transfer · 2018-07-25
FOFRNET spol. s r.o.
RIPE NCC
→
Suntel Net s.r.o.
RIPE NCC

Date	Resource	From	To	Type
2025-04-01	178.17.80.0/20	Nordic Telecom Regional s.r.o. RIPE NCC	O2 Czech Republic, a.s. RIPE NCC	Transfer
2018-07-25	178.17.80.0/20	FOFRNET spol. s r.o. RIPE NCC	Suntel Net s.r.o. RIPE NCC	Transfer

Origin ASN

AS42908

CZ-NORDICTELECOMREGIONAL O2 Czech Republic, a.s.

Related Prefixes

More prefixes of AS42908

All prefixes of AS42908 →

Geolocation

Country🇨🇿CzechiaCZ

RegionPrague

CityPrague (Praha 4)

Coordinates50.0447, 14.4570 ↗

Abuse Contact

Learn more

RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
RPKI validatorCheck ROA coverage for any prefix or ASN
What is BGP?How prefixes are announced and routed
More-specific prefixesGlossary: covering and more-specific routes
IPv4 transfers in the RIPE NCC regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/178.17.80.0/20

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/178.17.80.0/20" | jq

External Links

RIPEstat