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Autonomous System

AS21947

Blackfoot Telephone Cooperative, Inc.

Blackfoot Telephone Cooperative, Inc. United States 🌐 blackfoot.net
Announced IPs
70,144
CIDR prefixes
89
ASN
AS21947

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

70/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Network profile

Source: PeeringDB →
Network type NSP
Traffic level 50-100Gbps
Geographic scope Regional
Traffic ratio Mostly Inbound
Peering policy Open
IRR record AS-BLACKFOOT

Present at 2 internet exchanges: SIX Seattle: MTU 1500, IX-Denver: IX-Denver Fabric

Website ↗

AS21947 — global IP footprint

Cities where AS21947 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.

View on 3D globe →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
69.51.96.0/19 8.2K
86.0%
Blackfoot Telephone Cooperative, Inc. US Montana Missoula
209.200.192.0/19 8.2K
80.4%
Blackfoot Telephone Cooperative, Inc. US Montana Kalispell
216.14.224.0/19 8.2K
77.8%
Blackfoot Telephone Cooperative, Inc. US Montana Plains
66.109.128.0/20 4.1K
70.5%
Blackfoot Telephone Cooperative, Inc. US Montana Great Falls
69.51.80.0/20 4.1K
76.1%
Blackfoot Telephone Cooperative, Inc. US Montana Bozeman
69.165.112.0/20 4.1K
65.2%
Blackfoot Telephone Cooperative, Inc. US Montana Bozeman
192.225.176.0/20 4.1K
63.6%
Blackfoot Telephone Cooperative, Inc. US Idaho Rexburg
209.137.240.0/20 4.1K
63.5%
Blackfoot Telephone Cooperative, Inc. US Montana Anaconda
216.14.240.0/20 4.1K
61.8%
Blackfoot Telephone Cooperative, Inc. US Montana Plains
216.47.48.0/20 4.1K
84.0%
Blackfoot Telephone Cooperative, Inc. US Montana Plains
64.25.136.0/21 2.0K
82.5%
Blackfoot Telephone Cooperative, Inc. US Montana Arlee
66.109.152.0/21 2.0K
83.2%
Blackfoot Telephone Cooperative, Inc. US Montana Missoula
69.51.72.0/21 2.0K
95.0%
Blackfoot Telephone Cooperative, Inc. US Montana Townsend
192.150.152.0/21 2.0K
82.6%
Blackfoot Telephone Cooperative, Inc. US Idaho Saint Anthony
199.195.120.0/21 2.0K
0.0%
Blackfoot Telephone Cooperative, Inc. US — —
209.137.232.0/21 2.0K
71.5%
Blackfoot Telephone Cooperative, Inc. US Montana Darby
209.137.240.0/21 2.0K
65.3%
Blackfoot Telephone Cooperative, Inc. US Montana Anaconda
216.14.224.0/21 2.0K
95.6%
Blackfoot Telephone Cooperative, Inc. US Montana Saint Ignatius
216.14.248.0/21 2.0K
51.9%
Blackfoot Telephone Cooperative, Inc. US Montana Plains
216.47.56.0/21 2.0K
84.5%
Blackfoot Telephone Cooperative, Inc. US Montana Plains
64.25.132.0/22 1.0K
84.7%
Blackfoot Telephone Cooperative, Inc. US Montana Arlee
66.109.144.0/22 1.0K
47.8%
Blackfoot Telephone Cooperative, Inc. US Montana Missoula
69.51.64.0/22 1.0K
94.6%
Blackfoot Telephone Cooperative, Inc. US Montana Missoula
69.51.76.0/22 1.0K
94.5%
Blackfoot Telephone Cooperative, Inc. US Montana Belgrade
204.11.244.0/22 1.0K
0.0%
Blackfoot Telephone Cooperative, Inc. US — —
209.137.228.0/22 1.0K
72.8%
Blackfoot Telephone Cooperative, Inc. US Montana Philipsburg
209.137.248.0/22 1.0K
55.8%
Blackfoot Telephone Cooperative, Inc. US Montana Anaconda
216.14.232.0/22 1.0K
89.5%
Blackfoot Telephone Cooperative, Inc. US Montana Saint Ignatius
216.14.240.0/22 1.0K
71.7%
Blackfoot Telephone Cooperative, Inc. US Montana Plains
216.47.52.0/22 1.0K
84.0%
Blackfoot Telephone Cooperative, Inc. US Montana Plains
64.25.128.0/23 512
84.8%
Blackfoot Telephone Cooperative, Inc. US Montana Missoula
66.109.148.0/23 512
96.5%
Blackfoot Telephone Cooperative, Inc. US — —
69.51.68.0/23 512
95.9%
Blackfoot Telephone Cooperative, Inc. US — —
69.51.72.0/23 512
95.9%
Blackfoot Telephone Cooperative, Inc. US Montana Townsend
205.167.162.0/23 512
0.6%
Blackfoot Telephone Cooperative, Inc. US Montana Missoula
209.137.226.0/23 512
0.0%
Blackfoot Telephone Cooperative, Inc. US Montana Helena
209.137.252.0/23 512
67.2%
Blackfoot Telephone Cooperative, Inc. US Montana Anaconda
216.14.238.0/23 512
94.3%
Blackfoot Telephone Cooperative, Inc. US Montana Plains
216.14.246.0/23 512
48.2%
Blackfoot Telephone Cooperative, Inc. US Montana Plains
216.47.48.0/23 512
82.0%
Blackfoot Telephone Cooperative, Inc. US Montana Plains
64.25.131.0/24 256
83.6%
Blackfoot Telephone Cooperative, Inc. US Montana Bozeman
66.109.151.0/24 256
0.0%
Blackfoot Telephone Cooperative, Inc. US — —
69.51.75.0/24 256
94.9%
Blackfoot Telephone Cooperative, Inc. US Montana Hamilton
198.60.195.0/24 256
0.0%
Blackfoot Telephone Cooperative, Inc. US — —
209.137.225.0/24 256
73.0%
Blackfoot Telephone Cooperative, Inc. US Montana Missoula
209.137.254.0/24 256
68.4%
Blackfoot Telephone Cooperative, Inc. US Montana Great Falls
216.14.236.0/24 256
93.8%
Blackfoot Telephone Cooperative, Inc. US Montana Plains
216.14.244.0/24 256
96.5%
Blackfoot Telephone Cooperative, Inc. US Montana Saint Ignatius
216.47.50.0/24 256
82.8%
Blackfoot Telephone Cooperative, Inc. US Montana Plains
69.51.74.128/25 128
95.3%
Blackfoot Telephone Cooperative, Inc. US — —
209.137.255.0/25 128
68.0%
Blackfoot Telephone Cooperative, Inc. US Montana Anaconda
216.14.237.0/25 128
94.5%
Blackfoot Telephone Cooperative, Inc. US Montana Plains
216.14.245.128/25 128
94.5%
Blackfoot Telephone Cooperative, Inc. US Montana Saint Ignatius
216.47.51.0/25 128
85.2%
Blackfoot Telephone Cooperative, Inc. US Montana Plains
69.51.74.0/26 64
95.3%
Blackfoot Telephone Cooperative, Inc. US — —
209.137.255.192/26 64
67.2%
Blackfoot Telephone Cooperative, Inc. US Montana Anaconda
216.14.237.128/26 64
95.3%
Blackfoot Telephone Cooperative, Inc. US Montana Plains
216.14.245.0/26 64
93.8%
Blackfoot Telephone Cooperative, Inc. US Montana Saint Ignatius
216.47.51.192/26 64
85.9%
Blackfoot Telephone Cooperative, Inc. US Montana Plains
69.51.74.96/27 32
96.9%
Blackfoot Telephone Cooperative, Inc. US — —
209.137.255.160/27 32
68.8%
Blackfoot Telephone Cooperative, Inc. US Montana Anaconda
216.14.237.224/27 32
93.8%
Blackfoot Telephone Cooperative, Inc. US Montana Plains
216.14.245.96/27 32
93.8%
Blackfoot Telephone Cooperative, Inc. US Montana Saint Ignatius
216.47.51.128/27 32
84.4%
Blackfoot Telephone Cooperative, Inc. US Montana Plains
69.51.74.80/28 16
93.8%
Blackfoot Telephone Cooperative, Inc. US — —
209.137.255.144/28 16
68.8%
Blackfoot Telephone Cooperative, Inc. US Montana Anaconda
216.14.237.192/28 16
93.8%
Blackfoot Telephone Cooperative, Inc. US Montana Plains
216.14.245.80/28 16
93.8%
Blackfoot Telephone Cooperative, Inc. US Montana Saint Ignatius
216.47.51.176/28 16
87.5%
Blackfoot Telephone Cooperative, Inc. US Montana Plains
69.51.74.64/29 8
100.0%
Blackfoot Telephone Cooperative, Inc. US — —
209.137.255.136/29 8
62.5%
Blackfoot Telephone Cooperative, Inc. US Montana Anaconda
216.14.237.216/29 8
100.0%
Blackfoot Telephone Cooperative, Inc. US Montana Plains
216.14.245.64/29 8
100.0%
Blackfoot Telephone Cooperative, Inc. US Montana Saint Ignatius
216.47.51.168/29 8
87.5%
Blackfoot Telephone Cooperative, Inc. US Montana Plains
69.51.74.72/30 4
100.0%
Blackfoot Telephone Cooperative, Inc. US — —
209.137.255.132/30 4
75.0%
Blackfoot Telephone Cooperative, Inc. US Montana Anaconda
216.14.237.208/30 4
100.0%
Blackfoot Telephone Cooperative, Inc. US Montana Plains
216.14.245.76/30 4
100.0%
Blackfoot Telephone Cooperative, Inc. US Montana Saint Ignatius
216.47.51.160/30 4
75.0%
Blackfoot Telephone Cooperative, Inc. US Montana Plains
69.51.74.78/31 2
100.0%
Blackfoot Telephone Cooperative, Inc. US — —
209.137.255.128/31 2
50.0%
Blackfoot Telephone Cooperative, Inc. US Montana Anaconda
216.14.237.212/31 2
100.0%
Blackfoot Telephone Cooperative, Inc. US Montana Plains
216.14.245.74/31 2
100.0%
Blackfoot Telephone Cooperative, Inc. US Montana Saint Ignatius
216.47.51.166/31 2
100.0%
Blackfoot Telephone Cooperative, Inc. US Montana Plains
69.51.74.77/32 1
100.0%
Blackfoot Telephone Cooperative, Inc. US — —
209.137.255.131/32 1
100.0%
Blackfoot Telephone Cooperative, Inc. US Montana Anaconda
216.14.237.215/32 1
100.0%
Blackfoot Telephone Cooperative, Inc. US Montana Plains
216.14.245.72/32 1
100.0%
Blackfoot Telephone Cooperative, Inc. US Montana Saint Ignatius
216.47.51.164/32 1
100.0%
Blackfoot Telephone Cooperative, Inc. US Montana Plains

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS21947 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
192.150.152.0/21 19,071 2026-07-25 11:01:51
192.225.176.0/20 18,678 2026-07-25 11:01:51
64.25.128.0/20 6,360 2026-07-25 11:01:51
66.109.128.0/19 6,310 2026-07-25 11:01:54
69.165.112.0/20 6,308 2026-07-25 11:01:52
69.51.64.0/18 6,300 2026-07-25 11:01:51
209.200.192.0/19 6,208 2026-07-25 11:01:51
209.137.224.0/19 6,196 2026-07-25 11:01:52
216.14.224.0/19 6,179 2026-07-25 11:01:52
204.11.244.0/22 6,145 2026-07-25 11:01:52
216.47.48.0/20 6,131 2026-07-25 11:01:54
199.195.120.0/21 6,127 2026-07-25 11:01:52
205.167.162.0/23 6,067 2026-07-25 11:01:07
198.60.195.0/24 5,745 2026-07-25 11:01:07

Frequently Asked Questions

What is AS21947?

AS21947 is an Autonomous System Number assigned to Blackfoot Telephone Cooperative, Inc.. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS21947 announce?

AS21947 announces 70.1K IPv4 addresses distributed across 89 routed CIDR prefixes. The network is registered in United States.

Who operates AS21947?

AS21947 is operated by Blackfoot Telephone Cooperative, Inc.. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS21947 registered in?

AS21947 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-25 11:25:32 UTC
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