Home Prefix Lookup38.4.144.0/21

38.4.144.0/21 - REDES DEL OESTE S.A (AS264685)

IPv4ARINannouncedAS264685AS264685 - REDES DEL OESTE S.ANo ROA

CIDR

38.4.144.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇦🇷 Argentina

City

MENDOZA

RIR

ARIN

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

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Prefix	Origin AS	RPKI	IRR	Last Seen
38.4.144.0/21	AS264685 AS264685 - REDES DEL OESTE S.A	No ROA	Other IRR	2026-11-04

Covering Prefix

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
38.0.0.0/8	AS174 COGENT-174 - Cogent Communications, LLC	No ROA	-	2026-11-04

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS264685	Other IRR	MAINT-AS11664	2026-09-25

Transfer History

Registry transfers of 38.4.144.0/21, blocks inside it, or blocks containing it.

38.0.0.0/8M&A · 2025-09-23
PSINet, Inc.
🇺🇸 US ARIN
→
Cogent Communications
🇺🇸 US ARIN

Date	Resource	From	To	Type
2025-09-23	38.0.0.0/8	PSINet, Inc. 🇺🇸 US ARIN	Cogent Communications 🇺🇸 US ARIN	M&A

Origin ASN

AS264685

AS264685 - REDES DEL OESTE S.A

Related Prefixes

Covering prefix

38.0.0.0/8AS174

More prefixes of AS264685

All prefixes of AS264685 →

Geolocation

Country🇦🇷ArgentinaAR

CityMENDOZA

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 ARIN regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/38.4.144.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/38.4.144.0/21" | jq

External Links

RIPEstat