Home Prefix Lookup193.138.248.0/22

193.138.248.0/22 - DUOCAST B.V (AS31477)

IPv4RIPE NCCassignedAS31477DUOCAST-AS Duocast B.V. RPKI Valid

CIDR

193.138.248.0/22

IP Version

IPv4

Addresses

Mask

/22 (255.255.252.0)

Country

🇳🇱 The Netherlands

City

Amsterdam

RIR

RIPE NCC

Status

assigned

Allocated

2004-12-15

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
193.138.248.0/22	AS31477 DUOCAST-AS Duocast B.V.	Valid	RIPE	2026-10-12

More-Specific Announcements

2 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
193.138.248.0/24	AS31477 DUOCAST-AS Duocast B.V.	Valid	-	2026-10-12
193.138.250.0/24	AS31477 DUOCAST-AS Duocast B.V.	Valid	-	2026-10-12

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
193.138.248.0/22	AS31477	/24	ripe

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS31477	RIPE	MNT-DUOCAST	2018-04-03

Transfer History

Registry transfers of 193.138.248.0/22, blocks inside it, or blocks containing it.

193.138.248.0/22M&A · 2021-03-08
Adix B.V.
RIPE NCC
→
Duocast B.V.
RIPE NCC

Date	Resource	From	To	Type
2021-03-08	193.138.248.0/22	Adix B.V. RIPE NCC	Duocast B.V. RIPE NCC	M&A

Origin ASN

AS31477

DUOCAST-AS Duocast B.V.

Related Prefixes

More prefixes of AS31477

All prefixes of AS31477 →

Geolocation

Country🇳🇱The NetherlandsNL

RegionNorth Holland

CityAmsterdam

Coordinates52.3676, 4.9041 ↗

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/193.138.248.0/22

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

curl -s "https://api.ipctl.io/v1/prefix/193.138.248.0/22" | jq

External Links

RIPEstat