Home Prefix Lookup191.37.144.0/21

191.37.144.0/21 - (AS268323)

IPv4LACNICallocatedAS268323 RPKI Valid

CIDR

191.37.144.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇧🇷 Brazil

City

Registro

RIR

LACNIC

Status

allocated

Allocated

2014-03-19

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

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Prefix	Origin AS	RPKI	IRR	Last Seen
191.37.144.0/21	AS268323	Valid	Other IRR	2026-10-11

More-Specific Announcements

6 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
191.37.144.0/22	AS268323	Valid	-	2026-10-11
191.37.144.0/23	AS268323	Valid	-	2026-10-11
191.37.146.0/23	AS268323	Valid	-	2026-10-11
191.37.148.0/22	AS268323	Valid	-	2026-10-11
191.37.148.0/23	AS268323	Valid	-	2026-10-11
191.37.150.0/23	AS268323	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
191.37.144.0/21	AS28220	/24	lacnic
191.37.144.0/21	AS268323	/24	lacnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS268323	Other IRR	MAINT-AS28220	2026-09-11

Origin ASN

AS268323

Related Prefixes

More prefixes of AS268323

All prefixes of AS268323 →

Geolocation

Country🇧🇷BrazilBR

RegionSão Paulo

CityRegistro

Coordinates-24.4875, -47.8436 ↗

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 LACNIC regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/191.37.144.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/191.37.144.0/21" | jq

External Links

RIPEstat