Emergency Numbers as Extension

Article 000003342 · Updated May 13, 2025 · 2,980 views

Nextiva currently reserves certain blocks of numbers to be used as extensions to prevent accidental dialing of emergency or other reserved services. These numbers are used for special services such as police, ambulance, and firefighters.

Below is a list of numbers that cannot be used as extensions:

00
011
111
0112
112
211
311
0311

1311
411
0411
1411
511
611
0611
1611

711
811
911
0911
1911
988
999
9999

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