Home Prefix Lookup142.173.104.0/21

142.173.104.0/21 - RCN (AS6079)

IPv4ARINannouncedAS6079RCN-AS - RCN RPKI Valid

CIDR

142.173.104.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇺🇸 United States

City

Ashburn

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
142.173.104.0/21	AS6079 RCN-AS - RCN	Valid	ARIN	2026-10-13

Covering Prefix

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
142.173.96.0/20	AS6079 RCN-AS - RCN	Valid	-	2026-10-13

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
142.173.104.0/21	AS6079	/21	arin
142.173.96.0/20	AS6079	/20	arin

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS6079	ARIN	MNT-TACE	2026-08-06

Transfer History

Registry transfers of 142.173.104.0/21, blocks inside it, or blocks containing it.

142.173.0.0/16M&A · 2021-07-28
Stentor National Integrated Communications Network
🇨🇦 CA ARIN
→
TELUS Communications Inc.
🇨🇦 CA ARIN

Date	Resource	From	To	Type
2021-07-28	142.173.0.0/16	Stentor National Integrated Communications Network 🇨🇦 CA ARIN	TELUS Communications Inc. 🇨🇦 CA ARIN	M&A

Origin ASN

AS6079

RCN-AS - RCN

Related Prefixes

Covering prefix

142.173.96.0/20AS6079

More prefixes of AS6079

All prefixes of AS6079 →

Geolocation

Country🇺🇸United StatesUS

RegionVirginia

CityAshburn

Coordinates39.0300, -77.5000 ↗

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/142.173.104.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/142.173.104.0/21" | jq

External Links

RIPEstat