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Autonomous System

AS400337

NH Broadband, LLC

Announced IPs
22,784
CIDR prefixes
30
ASN
AS400337

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 →

AS400337 — global IP footprint

Cities where AS400337 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
134.49.96.0/19 8.2K
0.0%
NH Broadband, LLC US
163.245.160.0/19 8.2K
99.3%
NH Broadband, LLC US New Hampshire Plymouth
38.110.240.0/20 4.1K
0.0%
Cogent Communications, LLC US New Hampshire Meredith
163.245.176.0/20 4.1K
99.1%
NH Broadband, LLC US New Hampshire Thornton
163.245.168.0/21 2.0K
99.5%
NH Broadband, LLC US New Hampshire Wentworth
38.7.152.0/22 1.0K
0.0%
Conexon Connect US New Hampshire Plymouth
38.51.144.0/22 1.0K
24.9%
Conexon Connect US New Hampshire Meredith
163.245.160.0/22 1.0K
99.2%
NH Broadband, LLC US New Hampshire Plymouth
38.7.152.0/23 512
0.0%
Conexon Connect US New Hampshire Acworth
163.245.162.0/23 512
0.0%
NH Broadband, LLC US New Hampshire Plymouth
163.245.164.0/23 512
99.4%
NH Broadband, LLC US New Hampshire Lempster
163.245.160.0/24 256
0.0%
NH Broadband, LLC US New Hampshire Plymouth
163.245.167.0/24 256
99.6%
NH Broadband, LLC US New Hampshire Lempster
206.225.31.0/24 256
72.7%
Conexon Connect US New Hampshire Plymouth
163.245.161.128/25 128
0.0%
NH Broadband, LLC US New Hampshire Plymouth
163.245.166.128/25 128
100.0%
NH Broadband, LLC US New Hampshire Lempster
163.245.161.64/26 64
0.0%
NH Broadband, LLC US New Hampshire Plymouth
163.245.166.64/26 64
100.0%
NH Broadband, LLC US New Hampshire Lempster
163.245.161.0/27 32
0.0%
NH Broadband, LLC US New Hampshire Plymouth
163.245.166.32/27 32
100.0%
NH Broadband, LLC US New Hampshire Lempster
163.245.161.48/28 16
0.0%
NH Broadband, LLC US New Hampshire Plymouth
163.245.166.16/28 16
100.0%
NH Broadband, LLC US New Hampshire Lempster
163.245.161.40/29 8
0.0%
NH Broadband, LLC US New Hampshire Plymouth
163.245.166.0/29 8
100.0%
NH Broadband, LLC US New Hampshire Lempster
163.245.161.36/30 4
0.0%
NH Broadband, LLC US New Hampshire Plymouth
163.245.166.12/30 4
100.0%
NH Broadband, LLC US New Hampshire Lempster
163.245.161.32/31 2
0.0%
NH Broadband, LLC US New Hampshire Plymouth
163.245.166.10/31 2
100.0%
NH Broadband, LLC US New Hampshire Lempster
163.245.161.35/32 1
0.0%
NH Broadband, LLC US New Hampshire Plymouth
163.245.166.9/32 1
100.0%
NH Broadband, LLC US New Hampshire Lempster

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS400337 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
38.110.240.0/20 29,020 2026-09-07 16:31:31
163.245.160.0/19 27,430 2026-09-07 16:33:51
38.51.144.0/22 25,887 2026-09-07 19:33:28
38.7.152.0/22 25,866 2026-09-07 19:33:28
163.245.166.0/23 25,523 2026-09-07 16:33:51
38.51.144.0/23 25,483 2026-09-07 19:33:28
38.51.146.0/23 25,480 2026-09-07 19:33:28
163.245.182.0/24 25,469 2026-09-07 16:33:51
38.7.152.0/23 25,458 2026-09-07 19:33:28
163.245.168.0/23 25,446 2026-09-07 16:33:51
163.245.160.0/22 25,436 2026-09-07 16:33:51
38.7.154.0/23 25,430 2026-09-07 19:33:28
163.245.180.0/24 25,424 2026-09-07 16:33:51
163.245.179.0/24 25,423 2026-09-07 16:33:51
163.245.185.0/24 25,421 2026-09-07 16:33:51
163.245.187.0/24 25,420 2026-09-07 16:33:51
163.245.164.0/23 25,416 2026-09-07 16:33:51
163.245.188.0/24 25,414 2026-09-07 16:33:51
163.245.181.0/24 25,414 2026-09-07 16:33:51
163.245.172.0/23 25,412 2026-09-07 16:33:51
163.245.174.0/23 25,404 2026-09-07 16:33:51
163.245.170.0/23 25,401 2026-09-07 16:33:51
163.245.178.0/24 25,401 2026-09-07 16:33:51
163.245.176.0/23 25,393 2026-09-07 16:33:51
163.245.176.0/20 24,398 2026-09-07 16:33:51
163.245.160.0/20 24,397 2026-09-07 16:33:51
206.225.31.0/24 21,863 2026-09-07 19:40:49
134.49.96.0/19 5,755 2026-09-07 16:33:51
38.110.252.0/24 157 2026-08-14 09:10:15
38.110.240.0/22 157 2026-08-14 09:10:15
38.110.251.0/24 157 2026-08-14 09:10:15
38.110.250.0/24 157 2026-08-14 09:10:15
38.110.248.0/23 157 2026-08-14 09:10:15
38.110.244.0/22 157 2026-08-14 09:10:15
38.110.248.0/21 157 2026-08-14 09:10:15
38.110.240.0/21 157 2026-08-14 09:10:15

Frequently Asked Questions

What is AS400337?

AS400337 is an Autonomous System Number assigned to NH Broadband, LLC. 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 AS400337 announce?

AS400337 announces 22.8K IPv4 addresses distributed across 30 routed CIDR prefixes. The network is registered in United States.

Who operates AS400337?

AS400337 is operated by NH Broadband, LLC. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS400337 registered in?

AS400337 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: 2026-09-07 20:24:06 UTC
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