Home Prefix Lookup217.74.56.0/21

217.74.56.0/21 - CIX Cork Internet Exchange Limited (AS47720)

IPv4RIPE NCCallocatedAS47720CIX-AS Cork Internet Exchange LimitedNo ROA

CIDR

217.74.56.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇮🇪 Ireland

City

Cork (Knocknaheeney)

RIR

RIPE NCC

Status

allocated

Allocated

2003-09-09

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
217.74.56.0/21	AS47720 CIX-AS Cork Internet Exchange Limited	No ROA	RIPE	2026-10-11

Covering Prefix

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
217.74.48.0/20	AS47720 CIX-AS Cork Internet Exchange Limited	No ROA	-	2026-10-11

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS47720	RIPE	MNT-CIX	2024-06-13

More Specific Prefixes

Prefix	Country	Status
217.74.62.8/29	🇮🇪IE	assigned
217.74.62.16/29	🇮🇪IE	assigned
217.74.62.24/29	🇮🇪IE	assigned
217.74.62.56/29	🇮🇪IE	assigned
217.74.62.96/29	🇮🇪IE	assigned
217.74.62.104/29	🇮🇪IE	assigned
217.74.62.128/27	🇮🇪IE	assigned
217.74.62.160/29	🇮🇪IE	assigned
217.74.62.168/29	🇮🇪IE	assigned
217.74.62.176/29	🇮🇪IE	assigned
217.74.62.184/29	🇮🇪IE	assigned
217.74.63.0/28	🇮🇪IE	assigned

Transfer History

Registry transfers of 217.74.56.0/21, blocks inside it, or blocks containing it.

217.74.56.0/21Transfer · 2024-06-17
The Software Development Centre Limited
RIPE NCC
→
Cork Internet Exchange Limited
RIPE NCC

Date	Resource	From	To	Type
2024-06-17	217.74.56.0/21	The Software Development Centre Limited RIPE NCC	Cork Internet Exchange Limited RIPE NCC	Transfer

Origin ASN

AS47720

CIX-AS Cork Internet Exchange Limited

Related Prefixes

Covering prefix

217.74.48.0/20AS47720

More prefixes of AS47720

All prefixes of AS47720 →

Geolocation

Country🇮🇪IrelandIE

RegionMunster

CityCork (Knocknaheeney)

Coordinates51.9036, -8.5124 ↗

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/217.74.56.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/217.74.56.0/21" | jq

External Links

RIPEstat