Home Prefix Lookup154.56.48.0/21

154.56.48.0/21 - Cable Atlantico (AS265721)

IPv4ARINannouncedAS265721Cable Atlantico SRL RPKI Valid

CIDR

154.56.48.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇩🇴 Dominican Republic

City

Imbert

RIR

ARIN

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
154.56.48.0/21	AS265721 Cable Atlantico SRL	Valid	-	2026-10-11

Covering Prefix

2 less-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
154.48.0.0/12	AS174 COGENT-174 - Cogent Communications, LLC	No ROA	-	2026-10-11
154.56.32.0/19	AS265721 Cable Atlantico SRL	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
154.56.32.0/19	AS265721	/24	arin

Transfer History

Registry transfers of 154.56.48.0/21, blocks inside it, or blocks containing it.

154.56.0.0/16M&A · 2025-09-23
PSINet, Inc.
🇺🇸 US ARIN
→
Cogent Communications
🇺🇸 US ARIN

Date	Resource	From	To	Type
2025-09-23	154.56.0.0/16	PSINet, Inc. 🇺🇸 US ARIN	Cogent Communications 🇺🇸 US ARIN	M&A

Origin ASN

AS265721

Cable Atlantico SRL

Related Prefixes

Covering prefix

154.56.32.0/19AS265721

More prefixes of AS265721

All prefixes of AS265721 →

Geolocation

Country🇩🇴Dominican RepublicDO

RegionPuerto Plata

CityImbert

Coordinates19.7543, -70.8312 ↗

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/154.56.48.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/154.56.48.0/21" | jq

External Links

RIPEstat