Home Prefix Lookup178.165.136.0/21

178.165.136.0/21 - H3G Austria Hutchison Drei Austria (AS25255)

IPv4RIPEannouncedAS25255H3G-Austria-AS Hutchison Drei Austria GmbH RPKI Invalid

CIDR

178.165.136.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇦🇹 Austria

City

Vienna (Floridsdorf)

RIR

RIPE

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

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Prefix	Origin AS	RPKI	IRR	Last Seen
178.165.136.0/21	AS25255 H3G-Austria-AS Hutchison Drei Austria GmbH	Invalid	-	2026-10-11

Covering Prefix

2 less-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
178.165.128.0/17	AS25255 H3G-Austria-AS Hutchison Drei Austria GmbH	Valid	-	2026-10-11
178.165.128.0/20	AS25255 H3G-Austria-AS Hutchison Drei Austria GmbH	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
178.165.128.0/20	AS25255	/20	ripe
178.165.128.0/17	AS25255	/17	ripe

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS12635	RIPE	AS12635-MNT	2020-01-08

Origin ASN

AS25255

H3G-Austria-AS Hutchison Drei Austria GmbH

Related Prefixes

Covering prefix

178.165.128.0/20AS25255

More prefixes of AS25255

All prefixes of AS25255 →

Geolocation

Country🇦🇹AustriaAT

RegionVienna

CityVienna (Floridsdorf)

Coordinates48.2641, 16.4020 ↗

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 transfer marketTransfers published by all five RIRs

API

Open

GEThttps://api.ipctl.io/v1/prefix/178.165.136.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/178.165.136.0/21" | jq

External Links

RIPEstat