UK business numbering and voice delivery
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028 BUSINESS TELEPHONE NUMBERS

Antrim 028 business phone numbers for VoIP and cloud phone systems

Choose an available 028 virtual phone number and use it with the telephone setup that suits your business. Order online, select the routing method and keep the same public number as your phone system develops.

At a glance

UKDDI supplies 028 business telephone numbers that can be delivered to a SIP trunk, compatible 3CX phone system, hosted SIP phone, cloud voice platform, UK landline or mobile divert.

368,996 live numbersSIP and 3CX compatibleMobile divert available
LOCAL NUMBER · FLEXIBLE DELIVERY

A 028 number for the phone system you choose

A professional 028 number can give callers a familiar point of contact while your team answers from an office, home, mobile or cloud phone system. UKDDI supports inbound VoIP, SIP trunking, hosted business phone systems, 3CX-compatible routing and straightforward call forwarding. Live availability and pricing are shown on this page.

3CX and SIP trunk

Route inbound calls to a compatible 3CX deployment, session border controller, IP-PBX or other SIP platform using registration or IP-authenticated delivery.

Hosted VoIP phone system

Use the number with a hosted SIP extension, cloud phone system or cloud voice service and add a compatible desk or cordless handset.

Landline or mobile divert

Forward the virtual number to an existing UK landline or mobile when you need a simple business call-forwarding service without new hardware.

Keep your public number

Start with call diversion and move to SIP or a hosted phone system later, subject to provisioning and service compatibility.

BEFORE YOU CHOOSE

Useful guides for buying a 028 business number

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Choosing a number

Use a geographic number outside its area

A UK 01 or 02 number can be routed to a team outside the named area in permitted circumstances, but the area code retains geographic significance. The customer should deliberately request that area code, the call must retain the expected geographic tariff treatment, and marketing should not mislead callers about a physical office.

Read guide →
Choosing a number

01/02 vs 03 vs 0800 numbers

Use 01 or 02 when geographic identity matters, 03 when you want a UK-wide number charged to callers like a geographic call, and 0800 when you want the call to be free for the caller. The receiving business may still pay service and inbound-call charges.

Read guide →
Call routing

Make a business number ring a mobile

Yes. A UK business number can forward to a mobile, ring a mobile application through hosted VoIP, or use a phone system that rings desk and mobile devices. The best method depends on call volume, caller ID, voicemail, reporting, opening hours and the cost of forwarded calls.

Read guide →
LOCAL SALES OPPORTUNITY

Could you represent UKDDI in Antrim?

Help local organisations choose business numbers, SIP trunks, hosted phone systems, cloud voice and mobile-divert services.

Cover the 028 area
LIVE 028 STOCK

Available Antrim phone numbers

Open a number page to compare setup, monthly rental and delivery choices before adding it to your basket.

Memorable number

028 2088 8888

The repeated ending makes this number particularly easy to recognise and repeat.

from £2.50/month + VAT
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Memorable number

028 2522 2222

The repeated ending makes this number particularly easy to recognise and repeat.

from £2.50/month + VAT
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Memorable number

028 2722 2222

The repeated ending makes this number particularly easy to recognise and repeat.

from £2.50/month + VAT
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Memorable number

028 2999 9999

The repeated ending makes this number particularly easy to recognise and repeat.

from £2.50/month + VAT
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Memorable number

028 4388 8888

The repeated ending makes this number particularly easy to recognise and repeat.

from £2.50/month + VAT
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Memorable number

028 2088 0000

The repeated ending makes this number particularly easy to recognise and repeat.

from £2.50/month + VAT
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Memorable number

028 2139 0000

The repeated ending makes this number particularly easy to recognise and repeat.

from £2.50/month + VAT
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Memorable number

028 2522 0000

The repeated ending makes this number particularly easy to recognise and repeat.

from £2.50/month + VAT
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Memorable number

028 2722 0000

The repeated ending makes this number particularly easy to recognise and repeat.

from £2.50/month + VAT
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Memorable number

028 2816 0000

The repeated ending makes this number particularly easy to recognise and repeat.

from £2.50/month + VAT
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Memorable number

028 2999 0000

The repeated ending makes this number particularly easy to recognise and repeat.

from £2.50/month + VAT
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Memorable number

028 3049 0000

The repeated ending makes this number particularly easy to recognise and repeat.

from £2.50/month + VAT
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Memorable number

028 3774 0000

The repeated ending makes this number particularly easy to recognise and repeat.

from £2.50/month + VAT
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Memorable number

028 3852 0000

The repeated ending makes this number particularly easy to recognise and repeat.

from £2.50/month + VAT
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Memorable number

028 4036 0000

The repeated ending makes this number particularly easy to recognise and repeat.

from £2.50/month + VAT
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Memorable number

028 4145 0000

The repeated ending makes this number particularly easy to recognise and repeat.

from £2.50/month + VAT
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Memorable number

028 4245 0000

The repeated ending makes this number particularly easy to recognise and repeat.

from £2.50/month + VAT
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Memorable number

028 4388 0000

The repeated ending makes this number particularly easy to recognise and repeat.

from £2.50/month + VAT
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Memorable number

028 4446 0000

The repeated ending makes this number particularly easy to recognise and repeat.

from £2.50/month + VAT
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Memorable number

028 6654 0000

The repeated ending makes this number particularly easy to recognise and repeat.

from £2.50/month + VAT
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Memorable number

028 6736 0000

The repeated ending makes this number particularly easy to recognise and repeat.

from £2.50/month + VAT
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Memorable number

028 6836 0000

The repeated ending makes this number particularly easy to recognise and repeat.

from £2.50/month + VAT
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Memorable number

028 7022 0000

The repeated ending makes this number particularly easy to recognise and repeat.

from £2.50/month + VAT
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Memorable number

028 7111 0000

The repeated ending makes this number particularly easy to recognise and repeat.

from £2.50/month + VAT
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View all 028 numbers
COMMON QUESTIONS

028 business number FAQs

Can I use an 028 number with 3CX?

Yes. Select SIP trunk delivery and provide the 3CX or SBC routing details during checkout. Final compatibility and security settings are confirmed during provisioning.

Can calls to an 028 number divert to a mobile?

Yes. Choose landline or mobile divert and enter the UK destination number. Forwarded call usage is charged according to the selected plan.

Do I need a new phone system?

No. You can forward calls to an existing number, connect to a current SIP or 3CX platform, or order a hosted SIP extension and compatible handset.

Can I move the number later?

You can normally change the delivery method while keeping the same UKDDI number, subject to account checks, technical compatibility and the service terms.

BUILD YOUR BUSINESS PHONE SERVICE

Choose an 028 number and connect it your way.

SIP trunk, hosted phone, 3CX-compatible routing or landline and mobile divert.

See available numbers