Home Prefix Lookup2001:1940::/32

2001:1940::/32 - Blackfoot Telephone Cooperative (AS21947)

IPv6ARINallocatedAS21947BCI - Blackfoot Telephone Cooperative, Inc. RPKI Valid

CIDR

2001:1940::/32

IP Version

IPv6

Addresses

79228.1Y

Mask

/32

Country

🇺🇸 United States

City

Missoula

RIR

ARIN

Status

allocated

Allocated

2004-06-15

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
2001:1940::/32	AS21947 BCI - Blackfoot Telephone Cooperative, Inc.	Valid	ARINOther IRR	2026-10-11

More-Specific Announcements

1 more-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
2001:1940:1800::/40	AS15331 BCI-LAB - Blackfoot Telephone Cooperative, Inc.	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
2001:1940::/32	AS21947	/32	arin

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS21947	ARIN	MNT-BTC-13	2025-03-24
AS21947	Other IRR	MAINT-AS21947	2025-02-26

Origin ASN

AS21947

BCI - Blackfoot Telephone Cooperative, Inc.

Related Prefixes

More prefixes of AS21947

All prefixes of AS21947 →

Geolocation

Country🇺🇸United StatesUS

RegionMontana

CityMissoula

Coordinates46.8721, -113.9940 ↗

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/2001:1940::/32

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

curl -s "https://api.ipctl.io/v1/prefix/2001:1940::/32" | jq

External Links

RIPEstat