66.171.32.0/21 - BGP Prefix

IPv4ARINallocated RPKI Valid

CIDR

66.171.32.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇺🇸 United States

City

Arlington (Crystal Spring Knolls)

RIR

ARIN

Status

allocated

Allocated

2016-02-12

Announced BGP Routes

0 of 0 routes

RPKI:

IRR:

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Prefix	Origin AS	RPKI	IRR	Last Seen
This prefix is not announced as a whole. Parts of it are announced as more-specific prefixes, see below.

3 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
66.171.34.0/24	AS25903 GRIDCOMMUNICATIONS-240 - Grid Communications	Valid	-	2026-10-11
66.171.35.0/24	AS25903 GRIDCOMMUNICATIONS-240 - Grid Communications	Valid	-	2026-10-11
66.171.36.0/23	AS27602 PATHFINDER-ASN - Pathfinder Broadband	Valid	-	2026-10-11

Prefix	AS	Country	Status
66.171.32.0/23		🇺🇸US	allocated
66.171.34.0/23	AS25903	🇺🇸US	allocated
66.171.36.0/22		🇺🇸US	allocated
66.171.36.0/23	AS27602	🇺🇸US	allocated
66.171.38.0/24	AS399398	🇺🇸US	allocated
66.171.39.0/24	AS402496	🇺🇸US	allocated

Registry transfers of 66.171.32.0/21, blocks inside it, or blocks containing it.

Date	Resource	From	To	Type
2026-10-01	66.171.38.0/24	DOJ-USMS 🇺🇸 US ARIN	FITNESS INTERNATIONAL 🇺🇸 US ARIN	Transfer
2026-06-18	66.171.36.0/23	DOJ-USMS 🇺🇸 US ARIN	Pathfinder Internet 🇺🇸 US ARIN	Transfer
2026-05-28	66.171.39.0/24	DOJ-USMS 🇺🇸 US ARIN	Red Dot Corporation 🇺🇸 US ARIN	Transfer
2026-04-28	66.171.34.0/23	DOJ-USMS 🇺🇸 US ARIN	Grid Communications 🇺🇸 US ARIN	Transfer
2024-05-08	66.171.32.0/21	Micfo, LLC. 🇺🇸 US ARIN	U.S. Marshals Service in accordance with the Final Order of Forfeiture 🇺🇸 US ARIN	M&A
2016-02-12	66.171.32.0/21	Netstream Communications, LLC 🇺🇸 US ARIN	Micfo, LLC. 🇺🇸 US ARIN	Transfer

Geolocation

Country🇺🇸United StatesUS

RegionVirginia

CityArlington (Crystal Spring Knolls)

API

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

curl -s "https://api.ipctl.io/v1/prefix/66.171.32.0/21" | jq

External Links