Home Prefix Lookup72.56.172.0/24

72.56.172.0/24 - BGP Prefix

IPv4RIPEassigned RPKI Valid

CIDR

72.56.172.0/24

IP Version

IPv4

Addresses

256

Mask

/24 (255.255.255.0)

Country

🇺🇸 United States

City

Dallas

RIR

RIPE

Status

assigned

Allocated

Announced BGP Routes

0 of 0 routes

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
This prefix is not currently announced in BGP. See covering prefix below.

Covering Prefix

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
72.56.172.0/22	AS213541 ws-telecom-sdn WS Telecom Inc	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
72.56.128.0/18	AS209372	/24	ripe
72.56.128.0/18	AS213541	/24	ripe

Transfer History

Registry transfers of 72.56.172.0/24, blocks inside it, or blocks containing it.

72.56.0.0/16inter-RIRTransfer · 2025-08-11
T-Mobile USA, Inc.
🇺🇸 US ARIN
→
Net Inc.
🇺🇸 US RIPE NCC
72.56.0.0/13M&A · 2020-12-31
Sprint Communications, Inc.
🇺🇸 US ARIN
→
T-Mobile USA, Inc.
🇺🇸 US ARIN

Date	Resource	From	To	Type
2025-08-11	72.56.0.0/16inter-RIR	T-Mobile USA, Inc. 🇺🇸 US ARIN	Net Inc. 🇺🇸 US RIPE NCC	Transfer
2020-12-31	72.56.0.0/13	Sprint Communications, Inc. 🇺🇸 US ARIN	T-Mobile USA, Inc. 🇺🇸 US ARIN	M&A

Related Prefixes

Covering prefix

72.56.172.0/22AS213541

Geolocation

Country🇺🇸United StatesUS

RegionTexas

CityDallas

Coordinates32.7767, -96.7970 ↗

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 transfer marketTransfers published by all five RIRs

API

Open

GEThttps://api.ipctl.io/v1/prefix/72.56.172.0/24

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

curl -s "https://api.ipctl.io/v1/prefix/72.56.172.0/24" | jq

External Links

RIPEstat