Home Prefix Lookup137.155.48.0/21

137.155.48.0/21 - RCN (AS6079)

IPv4ARINannouncedAS6079RCN-AS - RCN RPKI Valid

CIDR

137.155.48.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇺🇸 United States

City

Lanham-Seabrook

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
137.155.48.0/21	AS6079 RCN-AS - RCN	Valid	ARIN	2026-10-13

Covering Prefix

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
137.155.48.0/20	AS20115 CHARTER-20115 - Charter Communications LLC	Valid	-	2026-10-13

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
137.155.48.0/21	AS6079	/24	arin
137.155.48.0/21	AS7843	/24	arin
137.155.48.0/21	AS22773	/24	arin
137.155.48.0/20	AS20115	/24	arin
137.155.32.0/19	AS7018	/24	arin

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS6079	ARIN	MNT-CNU-1-Z	2026-09-03
AS7843	ARIN	MNT-CNU-1-Z	2026-09-03
AS22773	ARIN	MNT-CNU-1-Z	2026-09-03

Origin ASN

AS6079

RCN-AS - RCN

Related Prefixes

Covering prefix

137.155.48.0/20AS20115

More prefixes of AS6079

All prefixes of AS6079 →

Geolocation

Country🇺🇸United StatesUS

RegionMaryland

CityLanham-Seabrook

Coordinates38.9614, -76.8433 ↗

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/137.155.48.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/137.155.48.0/21" | jq

External Links

RIPEstat