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DSDownloadSpeed
FCC Data · Updated April 2026
B

Best Internet in Grafton, NH

1000 Mbps avg · 36 ZIP codes · 100% fiber · 10 providers/ZIP

1000
Avg Mbps
1,000
Max Mbps
100%
Fiber Access
10
Avg Providers
Providers

Internet Providers in Grafton

ProviderZIP Codes Served% of Area
United States Cellular Corporation36100%
Consolidated Communications36100%
Comcast36100%
T-Mobile36100%
Charter Communications INC36100%
Atlantic Broadband Finance, LLC36100%
Wireless Partners LLC36100%
Browse

ZIP Codes in Grafton

03215
03217
03222
03223
03238
03240
03241
03245
03251
03262
03264
03266
03279
03282
03285
03293
03561
03574
03580
03585
03586
03740
03741
03748
03750
03755
03765
03766
03768
03771
03774
03777
03779
03780
03784
03785
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FAQ

Frequently Asked Questions

What is the average internet speed in Grafton, NH?

Grafton, New Hampshire has an average maximum download speed of 1000 Mbps across 36 ZIP codes. The fastest available speed is 1000 Mbps. 100% of ZIP codes have fiber internet.

Who are the best internet providers in Grafton?

The most widely available providers in Grafton are United States Cellular Corporation (36 ZIPs), Consolidated Communications (36 ZIPs), Comcast (36 ZIPs). Check individual ZIP codes for exact availability at your address.

Is fiber internet available in Grafton?

Yes, fiber internet is available in 100% of Grafton's ZIP codes. Fiber coverage is good in this area. Search your specific ZIP code for exact fiber availability.

How does Grafton compare to the rest of New Hampshire?

Grafton has an average Broadband Grade of B (65/100). The Grafton area averages 10 providers per ZIP code with 100% fiber access. Check the New Hampshire overview for statewide comparison.

The this entity record above pulls directly from the FCC Broadband Data Collection (BDC). What follows is the per-entity context — how this entity sits in the broader U.S. internet availability and broadband speed distribution and which underlying factors drive the headline numbers.

The methodology behind every numeric value on this page is publicly documented on the the FCC Broadband Data Collection (BDC) portal and described in detail on this site’s methodology page. Refresh cadence varies by underlying series; the page surfaces the as-of date for each number so readers can trace any figure back to the source release.

For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. ZIPs, counties, and states with similar size, similar exposure, or similar geography — not the national-level summary alone.

Source: FCC Broadband Data Collection, 2026.