Home Prefix Lookup204.146.159.0/24

204.146.159.0/24 - Level 3 Parent (AS203)

IPv4ARINannouncedAS203CENTURYLINK-LEGACY-LVLT-203 - Level 3 Parent, LLC RPKI Invalid

CIDR

204.146.159.0/24

IP Version

IPv4

Addresses

256

Mask

/24 (255.255.255.0)

Country

🇺🇸 United States

City

Washington D.C.

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
204.146.159.0/24	AS203 CENTURYLINK-LEGACY-LVLT-203 - Level 3 Parent, LLC	Invalid	-	2026-10-12

Covering Prefix

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
204.146.0.0/16	AS7018 ATT-INTERNET4 - AT&T Enterprises, LLC	Valid	-	2026-10-12

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
204.146.159.0/24	AS7018	/24	arin
204.146.0.0/16	AS7018	/16	arin

Transfer History

Registry transfers of 204.146.159.0/24, blocks inside it, or blocks containing it.

204.146.0.0/16M&A · 2024-12-05
AT&T Corp.
🇺🇸 US ARIN
→
AT&T Enterprises, LLC
🇺🇸 US ARIN
204.146.0.0/16M&A · 2022-09-09
AT&T Global Network Services, LLC
🇺🇸 US ARIN
→
AT&T Corp.
🇺🇸 US ARIN

Date	Resource	From	To	Type
2024-12-05	204.146.0.0/16	AT&T Corp. 🇺🇸 US ARIN	AT&T Enterprises, LLC 🇺🇸 US ARIN	M&A
2022-09-09	204.146.0.0/16	AT&T Global Network Services, LLC 🇺🇸 US ARIN	AT&T Corp. 🇺🇸 US ARIN	M&A

Origin ASN

AS203

CENTURYLINK-LEGACY-LVLT-203 - Level 3 Parent, LLC

Related Prefixes

Covering prefix

204.146.0.0/16AS7018

More prefixes of AS203

All prefixes of AS203 →

Geolocation

Country🇺🇸United StatesUS

RegionDistrict of Columbia

CityWashington D.C.

Coordinates38.9072, -77.0369 ↗

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/204.146.159.0/24

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

curl -s "https://api.ipctl.io/v1/prefix/204.146.159.0/24" | jq

External Links

RIPEstat