North West London · HA postcode area
Business phone systems for the HA postcode area
HA covers Harrow and the surrounding parts of North West London, on the 020 dialling code. We set up cloud phone systems and local numbers for businesses right across the area, from £19 per user a month.
Where the HA postcode area covers
The HA postcode area is named after Harrow and stretches across North West London. Towns inside it include:
- Harrow
- Wembley
- Edgware
- Northwood
Phone numbers here normally start 020. Because our lines are cloud based, the postcode of your premises doesn't limit which number you can use — you can keep a 020 number if you move office within North West London, or add a second number for another town entirely.
Postcode boundaries and dialling code boundaries don't line up exactly, so a few addresses at the edge of HA sit on a neighbouring code. If you're not sure which applies to you, tell us your address and we'll check before you order.
What you get
Phone lines for Harrow businesses
Works on the phones you have
Calls ring your mobile, a desk phone or both — no engineer visit.
Keep your local number
We port your existing number free, so nothing you've advertised changes.
From £19 per user a month
UK landline and mobile calls included, rolling monthly, no line rental.
Ready for the switch off
Cloud lines replace PSTN and ISDN before the copper network retires.
Switching
Moving a Harrow business off old lines
Most businesses in HA are still on copper PSTN lines or an ISDN system that has to be replaced before the network is retired. Swapping to a cloud system removes line rental, keeps your existing number and gives you call routing, voicemail-to-email and a mobile app on the same plan.
Porting your number takes around 5 to 10 working days. Your old line keeps running until the port completes; on cutover day there is a short window where calls may not connect, so we agree a time with you and recommend pointing a mobile at the business in the meantime.
FAQ
HA postcode questions
Yes. Setup is remote, so we cover every HA postcode — Harrow, Wembley, Edgware, Northwood and everywhere between. No engineer visit is needed.
Next steps
Related pages
Also see every UK postcode area we cover, how a UK business VoIP system works, what replaces an ISDN line, this month's business phone deals and full plan pricing.
Get a phone system quote for HA
Same-day quote. Free number porting and free setup on the current offer.