United Kingdom • NPA 1663
☎️ Central Office Exchange (NXX)
+44 (1663) 6721 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +44 (1663) 6721. Central office block assigned to New Mills, United Kingdom.
Standard Subscriber Format
+44 (1663) 6721-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
1663
Primary Location
New Mills
Service Type
Landline
📋 Central Office Exchange 6721 Routing Details
The 6721 exchange code (central office prefix) operates within the 1663 Numbering Plan Area (NPA) servicing New Mills, United Kingdom. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +44 (1663) 6721 prefix range are primarily provisioned by Local Network Carrier, delivering local landline voice lines and network routing.
🌐 Dialing Instructions
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Domestic Calls: Dial
01663 6721-1234or local national format. -
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International Calls: Dial
+44 1663 6721-1234from outside United Kingdom. -
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E.164 Standard:
+4416636721XXXX
📞 Nearby Exchanges in Area Code 1663
View All Area Code 1663 Exchanges ›❓ Frequently Asked Questions
What area code is +44 (1663) 6721?
Phone numbers starting with +44 (1663) 6721 belong to the 1663 area code in New Mills, United Kingdom, routed via exchange block 6721.
How do I call a 6721 exchange number from abroad?
To call this prefix internationally, dial your local exit code (e.g., 011 in North America or + globally), followed by +44, then 1663, and the subscriber number.
Which provider operates the 6721 prefix in New Mills?
Telecom services for the 6721 exchange block in New Mills are primarily assigned to Local Network Carrier for Landline connections.