Add, Edit, and Remove Extensions

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User extensions not only allow your internal team to quickly dial out to each other but can also be used to route callers to your team quickly via the dial-by extension directory on your Main Line, Department, or Contact Center.

Let's take a closer look at extension dialing.

Who can use this

Extension dialing is available on Enterprise plans.
To enable this feature, please contact our Customer Care team.

Extensions are configured at the Company Level, and can be used on individual and shared lines.

Extension parameters

Extensions only work between team members within the same Company, unless you set up a dial-by extension directory

Extensions can be 3, 4, 5, or 6 digits long, with five digits being the default. Contact Customer Care if you'd like to use a 3, 4 or 6-digit extension.

Add an extension

Extensions can be added to new and existing team members.

To add an extension for a user with a DID, go to your Dialpad Admin Settings.

  1. Navigate to Office Settings > Users

  2. Beside the team member, select Add license > Add extension
    List of Aerolabs main users with their roles and contact information displayed.

  3. Enter a 5-digit extension number

    Input field for adding a five-digit phone extension with instructions displayed.

  4. Select Save

Edit an extension

To edit an extension for a user with a DID, go to your Dialpad Admin Settings.

  1. Navigate to Office Settings > Users

  2. Locate the team member, then select Add license > Edit Extension

  3. Enter a new extension

    Editing phone extension with a prompt for five-digit length requirement.

  4. Select Save

Remove an extension

To remove an extension for a user with a DID, go to your Dialpad Admin Settings.

  1. Navigate to Office Settings > Users

  2. Beside the team member, select Add license > Edit Extension

    User management interface displaying user details and options for editing extensions and licenses.

  3. Select Remove Extension

    Editing an extension with a five-digit requirement and options to save or remove.

  4. In the confirmation window, select Remove

    Confirmation dialog asking to remove extension with a specific number.

Shared line extensions

Note

Extensions without a DID can only be used internally. They can’t be used for any external PSTN dialing.

To add an extension for a shared line with a DID, go to your Dialpad Admin Settings.

  1. Navigate to a Shared Line and select Options > Add Extension

  2. Enter a 5-digit extension

  3. Select Save

You can also create extensions for a Department or Contact Center without a DID.

To add an extension without a DID, go to your Dialpad Admin Settings.

Note

Extensions without a DID can only be used internally. They can’t be used for any external PSTN dialing.

  1. Navigate to the Department or Contact Center to want to add the extension to

  2. Under Department Info or Contact Center Info, navigate to Phone Number(s)

    Department info for Aerolabs CA, including phone numbers and description fields.

  3. Select Add Extension

  4. Enter an extension number

  5. Select Save

To edit an extension without a DID, go to your Dialpad Admin Settings.

  1. Navigate to the Department of Contact Center that you want to edit the extension for

  2. Under Department Info or Contact Center Info, navigate to Phone Number(s)

    Department information for Aerolabs CA, including contact details and description.

  3. Select Edit Extension

  4. Enter a new extension number

  5. Select Save

To remove an extension to a shared line without a DID, go to your Dialpad Admin Settings.

  1. Navigate to the shared line that you want to edit the extension for

  2. Under Department Info or Contact Center Info, navigate to Phone Number(s)

    Department information for Aerolabs CA, including contact details and description.

  3. Select Edit Extension

  4. Select Remove Extension

    Editing an extension with a five-digit requirement and options to save or remove.

  5. In the confirmation window, select Remove

    Confirmation dialog asking to remove extension with a specific number.

Change or remove a shared line extension

To change or remove an extension for a shared line, go to your Dialpad Admin Settings.

  1. Navigate to a Shared Line and select Options > Edit Extension

  2. Enter a different 5-digit extension, or select Remove Extension

More information

Read our Extension FAQs for more details on using extensions.

Emergency & special service extension numbers

Don’t use these certain global emergency and special service numbers as phone extensions in these regions to prevent accidental calls to emergency and/or special services.

North America

Country

Number

Canada

  • 211

  • 311

  • 411

  • 511

  • 611

  • 711

  • 811

  • 911

  • 988

United States

  • 211

  • 311

  • 411

  • 511

  • 611

  • 711

  • 811

  • 911

  • 988

Latin America

Country

Number

Argentina

  • 10x (e.g., 101, 107, etc.)

  • 110

  • 112

  • 113

  • 147

  • 911

Brazil

  • 100

  • 102

  • 136

  • 181

  • 19x

  • 1746

Chile

  • 13x (e.g., 131, 132, etc.)

  • 147

  • 149

  • 911

Colombia

  • 112

  • 119

  • 123

  • 125

  • 132

  • 141

  • 144

  • 155

  • 165

  • 195

  • #767

Costa Rica

  • 117

  • 118

  • 127

  • 128

  • 911

Dominican Republic

  • *212

  • 911

Ecuador

  • 101

  • 102

  • 131

  • 911

Mexico

  • 030

  • 040

  • 066

  • 070

  • 071

  • 078

  • 089

  • 911

Panama

  • 102

  • 103

  • 104

  • 311

  • 911

Puerto Rico

  • 311

  • 911

  • 988

Europe

Country

Number

Austria

  • 112

  • 120

  • 122

  • 123

  • 128

  • 133

  • 140

  • 141

  • 142

  • 144

  • 147

  • 1455

Belgium

  • 100

  • 101

  • 102

  • 106

  • 107

  • 112

  • 1711

  • 1722

  • 1733

  • 1813

  • 116000

Bulgaria

  • 112

  • 150

  • 160

  • 165

  • 166

  • 180

  • 11800

Croatia

  • 112

  • 192

  • 193

  • 194

  • 195

  • 1987

  • 11802

  • 11888

  • 18981

Czechia (Czech Republic)

  • 112

  • 150

  • 155

  • 156

  • 158

  • 1180

  • 1230

  • 1240

  • 116111

  • 116123

Denmark

  • 112

  • 114

  • 1812

  • 1813

  • 1818

  • 18xx

Estonia

  • 112

  • 1182

  • 1188

  • 1220

  • 1247

  • 16662

  • 116000

  • 116006

  • 116111

  • 116123

France

  • 15

  • 17

  • 18

  • 112

  • 114

  • 115

  • 119

  • 191

  • 196

  • 3114

  • 3919

  • 116000

  • 116117

Finland

  • 112

  • 116000

  • 116117

Germany

  • 110

  • 112

  • 118xx

  • 19222

  • 116116

  • 116117

Greece

  • 100

  • 108

  • 112

  • 166

  • 191

  • 199

  • 1016

  • 1056

  • 11888

  • 15900

  • 116000

  • 116111

Hungary

  • 104

  • 105

  • 107

  • 112

  • 188

  • 11800

  • 11811

  • 116000

  • 116111

  • 116123

Ireland

  • 112

  • 999

  • 118xx

  • 116000

  • 116006

  • 116111

  • 116123

Italy

  • 112

  • 113

  • 114

  • 115

  • 118

  • 12xx

  • 1515

  • 1522

  • 1530

  • 116000

  • 116117

  • 803116

Lituania

  • 112

  • 113

  • 117

  • 118

  • 119

  • 116000

  • 116111

  • 116123

Luxembourg

  • 112

  • 113

  • 118xx

  • 116000

  • 116111

  • 454545

Netherlands

  • 112

  • 113

  • 14xxx

  • 116000

  • 116117

Norway

  • 110

  • 112

  • 113

  • 175

  • 1412

  • 18xx

  • 02800

  • 116000

  • 116117

  • 116123

Poland

  • 112

  • 981

  • 985

  • 986

  • 997

  • 998

  • 999

  • 116111

  • 116123

Portugal

  • 112

  • 117

  • 144

  • 1414

  • 116000

  • 116006

  • 116111

Romania

  • 112

  • 113

  • 19xx

  • 116000

  • 116111

  • 116123

Russia

  • 101

  • 102

  • 103

  • 104

  • 107

  • 109

  • 112

  • 115

Slovakia

  • 112

  • 150

  • 155

  • 158

  • 159

  • 1180

  • 1181

  • 16155

  • 18124

  • 18300

Spain

  • 010

  • 011

  • 012

  • 016

  • 024

  • 061

  • 062

  • 080

  • 091

  • 092

  • 112

  • 118xx

  • 116000

Sweden

  • 112

  • 1177

  • 11313

  • 11414

  • 90101

  • 116000

  • 116111

  • 116123

  • 118118

Switzerland

  • 112

  • 117

  • 118

  • 140

  • 143

  • 144

  • 145

  • 161

  • 162

  • 163

  • 1414

  • 1415

  • 1811

  • 116000

United Kingdom (UK)

  • 101

  • 105

  • 111

  • 112

  • 195

  • 999

  • 116000

  • 116123

  • 118xxx

Africa

Country

Number

South Africa

  • 107

  • 112

  • 116

  • 1020

  • 10111

  • 10177

  • 17737

  • 082911

  • 084124

Asia

Country

Number

Australia

  • 000

  • 106

  • 112

  • 131114

  • 131126

  • 131444

  • 132500

  • 137425

Hong Kong

  • 112

  • 992

  • 999

  • 1081

  • 1083

  • 1088

  • 1868

  • 18222

India

  • 100

  • 101

  • 102

  • 104

  • 107

  • 108

  • 112

  • 139

  • 181

  • 1033

  • 1070

  • 1091

  • 1098

  • 1363

  • 1906

  • 1930

Indonesia

  • 108

  • 110

  • 112

  • 113

  • 115

  • 118

  • 119

  • 129

  • 151

Israel

  • 100

  • 101

  • 102

  • 103

  • 104

  • 105

  • 106

  • 107

  • 108

  • 109

  • 110

  • 118

  • 144

  • 1201

  • 1202

  • 1203

  • 1221

  • 1230

  • *2236

Japan

  • 104

  • 110

  • 117

  • 118

  • 119

  • 171

  • 189

  • #7119

  • #9110

Malaysia

  • 101

  • 103

  • 112

  • 994

  • 999

  • 15555

  • 15999

New Zealand

  • 010

  • 018

  • 105

  • 111

  • 1737

Philippines

  • 136

  • 143

  • 911

  • 1326

  • 1342

  • 1343

  • 1348

  • 1349

  • 1383

  • 1384

  • 1386

  • 1553

  • 1555

  • 7890

  • 8888

  • 15999

Singapore

  • 100

  • 995

  • 999

  • 1767

  • 1771

  • 1777

  • 1799

  • 70995

  • 70999

South Korea

  • 110

  • 112

  • 114

  • 119

  • 120

  • 121

  • 123

  • 131

  • 132

  • 182

  • 1330

  • 1339

  • 1345

  • 1366

  • 1388

  • 1771

Turkey

  • 110

  • 112

  • 121

  • 122

  • 144

  • 153

  • 154

  • 155

  • 156

  • 157

  • 158

  • 159

  • 177

  • 183

  • 184

  • 185

  • 186

  • 187

  • 188

  • 190

  • 199

Vietnam

  • 111

  • 112

  • 113

  • 114

  • 115

  • 116

  • 1080

  • 1088

Bulk Manage Extensions with a CSV

Companies using the Enterprise Support Portal can add, update, or clear extensions for Users, Rooms, Departments, Contact Centers, and Offices using a single CSV upload. Learn more.