diff --git a/src/frontend/citizen-portal/src/app/components/disputant-form/disputant-form.component.html b/src/frontend/citizen-portal/src/app/components/disputant-form/disputant-form.component.html
index 3c2d2a561..c952c74d7 100644
--- a/src/frontend/citizen-portal/src/app/components/disputant-form/disputant-form.component.html
+++ b/src/frontend/citizen-portal/src/app/components/disputant-form/disputant-form.component.html
@@ -204,7 +204,7 @@ <h4><b>Contact details</b></h4>
             }}</mat-label>
           <input *ngIf="isCA || isUSA" matInput formControlName="home_phone_number" mask="(000) 000-0000"
             [showMaskTyped]="true" />
-          <input *ngIf="!isCA && !isUSA" matInput formControlName="home_phone_number" mask="00000000000000000000" />
+          <input *ngIf="!isCA && !isUSA" matInput formControlName="home_phone_number" mask="99999999999999999999" />
           <mat-error *ngIf="form.controls.home_phone_number?.hasError('phone')">Must be a valid phone number
           </mat-error>
         </mat-form-field>
diff --git a/src/frontend/staff-portal/src/app/components/staff-workbench/contact-info/contact-info.component.html b/src/frontend/staff-portal/src/app/components/staff-workbench/contact-info/contact-info.component.html
index 9aaf2fc98..babd4585a 100644
--- a/src/frontend/staff-portal/src/app/components/staff-workbench/contact-info/contact-info.component.html
+++ b/src/frontend/staff-portal/src/app/components/staff-workbench/contact-info/contact-info.component.html
@@ -294,7 +294,7 @@ <h4>Who are we contacting?</h4>
                     <input matInput formControlName="homePhoneNumber" mask="(000) 000-0000"
                       *ngIf="form.get('addressCountryId').value === canada.ctryId || form.get('addressCountryId').value === usa.ctryId"
                       [showMaskTyped]="true" />
-                    <input matInput formControlName="homePhoneNumber" mask="00000000000000000000"
+                    <input matInput formControlName="homePhoneNumber" mask="99999999999999999999"
                       *ngIf="form.get('addressCountryId').value !== canada.ctryId && form.get('addressCountryId').value !== usa.ctryId" />
                     <mat-error *ngIf="form.get('homePhoneNumber')?.hasError('phone')">Must be a valid phone number
                     </mat-error>
diff --git a/src/frontend/staff-portal/src/app/components/staff-workbench/ticket-info/ticket-info.component.html b/src/frontend/staff-portal/src/app/components/staff-workbench/ticket-info/ticket-info.component.html
index 5de437303..83e24c0ed 100644
--- a/src/frontend/staff-portal/src/app/components/staff-workbench/ticket-info/ticket-info.component.html
+++ b/src/frontend/staff-portal/src/app/components/staff-workbench/ticket-info/ticket-info.component.html
@@ -608,7 +608,7 @@ <h4>{{ "label.who_contacting" | translate }}</h4>
                       <input matInput formControlName="homePhoneNumber" mask="(000) 000-0000" (change)="onFieldChange()"
                         *ngIf="form.get('addressCountryId').value === canada.ctryId || form.get('addressCountryId').value === usa.ctryId"
                         [showMaskTyped]="true" />
-                      <input matInput formControlName="homePhoneNumber" mask="00000000000000000000" (change)="onFieldChange()"
+                      <input matInput formControlName="homePhoneNumber" mask="99999999999999999999" (change)="onFieldChange()"
                         *ngIf="form.get('addressCountryId').value !== canada.ctryId && form.get('addressCountryId').value !== usa.ctryId" />                      
                       <mat-error *ngIf="form.get('homePhoneNumber')?.hasError('phone')">{{ "error.phone_number" | translate }}
                       </mat-error>