CM20 broadband coverage — East Hertfordshire
Full-fibre, gigabit and superfast broadband availability across the CM20 postcode district, plus business broadband and leased-line options for East Hertfordshire.
Strong coverage
Superfast (30Mb+)
88.9%
Ultrafast (300Mb+)
71.2%
Gigabit-capable
67.4%
Below USO (10Mb)
0%
Check broadband at your exact CM20 postcode
District figures are an average — get the precise availability, full-fibre status and mobile signal for your address.
Broadband in CM20
Broadband availability in the CM20 postcode district (East Hertfordshire) is Strong — superfast is near-universal and gigabit is rolling out. Across the 565 postcodes Ofcom measures in CM20, superfast broadband (30 Mbit/s or faster) reaches 88.9% of premises and gigabit-capable lines are available to 67.4%.
Around 0% of premises in CM20 fall below the Universal Service Obligation (a minimum of 10 Mbit/s download and 1 Mbit/s upload), so the overwhelming majority of homes and businesses here can already order a decent fixed line. For a business that depends on its connection, the figures that matter most are gigabit and full-fibre availability — the symmetric, low-contention services we quote leased lines and FTTP against.
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Sample postcodes in CM20
| Postcode | Superfast | Gigabit |
|---|---|---|
| CM20 1AA | 0% | 0% |
| CM20 1AB | 0% | 0% |
| CM20 1AF | 100% | 0% |
| CM20 1AG | 100% | 0% |
| CM20 1AJ | 12.5% | 0% |
| CM20 1AN | 0% | 0% |
| CM20 1AQ | 0% | 0% |
| CM20 1AR | 100% | 0% |
| CM20 1AS | 100% | 0% |
| CM20 1AT | 100% | 0% |
Business broadband & leased lines in East Hertfordshire
Whether the CM20 district has full fibre yet or not, we can connect your business. Where FTTP and gigabit are live we quote ultrafast full-fibre; where they aren't, a leased line still delivers guaranteed, symmetric speeds with an SLA. We also handle mobile coverage and VoIP for the same site.
Get a business broadband quote for CM20
Free, no obligation — full fibre, leased line or FTTC, matched to what's actually available at your postcode.
Nearby CM districts
See all Chelmsford (CM) broadband coverage ›
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Frequently asked questions
What broadband speeds are available in the CM20 area (East Hertfordshire)?
Can I get full-fibre or gigabit broadband in the CM20 area (East Hertfordshire)?
How do I check broadband at my exact address in the CM20 area (East Hertfordshire)?
Who provides business broadband in the CM20 area (East Hertfordshire)?
Broadband availability data © 2026 Ofcom (Connected Nations), licensed under the Open Government Licence v3.0. Figures are area averages and predictions; availability at an individual address may differ — always confirm with a postcode-level check.