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If you already have a business phone number with another carrier, you can transfer (port) it to Z360 so you can make calls, send SMS, and receive messages — all from within the platform. Z360 uses Telnyx as its underlying carrier, and the entire porting process is handled through a simple 4-step wizard inside Z360. Porting typically takes 7–14 business days after submission, depending on your current carrier. Your existing number will continue to work normally until the port completes.
Do not cancel your service with your current carrier until the port is fully complete and your number is active in Z360. Canceling early can cause the port to fail and you may lose your number.

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Before You Start

Make sure you have the following information ready before starting the porting process:
  • Phone number(s) you want to port, including the country code (e.g., +15555555555).
  • Account holder name — the business or personal name on record with your current carrier.
  • Authorized person — the person authorized to make changes to the account with your current carrier.
  • Account number with your current carrier.
  • PIN or passcode (if your carrier requires one).
  • Service address — the full street address associated with the number on your current carrier’s account. This must match exactly.
  • A recent invoice or CSR from your current carrier that shows the phone number(s) being ported.
The account holder name, authorized person, and service address must match exactly what your current carrier has on file. Mismatches are the most common reason port requests are rejected.
If you are unsure about any of these details, contact your current carrier and request a CSR (Customer Service Record) — this document contains all the account information needed for the port.

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Step 1: Check Numbers

  • Go to Settings → Phone Numbers in Z360.
  • Click Port Number to open the porting wizard.
  • Enter the phone number(s) you want to port. Use the full format with country code (e.g., +15555555555).
  • If you are porting multiple numbers, enter each one on a separate line.
  • Click Next to continue.
Z360 will check whether the number(s) are eligible for porting. If a number cannot be ported, you will see an explanation before moving forward.

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Step 2: Account Info

Enter the details as they appear on your current carrier account. These must match exactly.
  • Account Holder Name — The business or personal name on the account with your current carrier.
  • Authorized Person — The person authorized to make changes on the account.
  • Account Number — Your carrier account number.
  • PIN / Passcode — Your account PIN, if required by your carrier. Leave this blank if your carrier does not use a PIN.
Click Next to continue.

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Step 3: Service Address

Enter the service address on file with your current carrier. This must match their records exactly.
  • Street Address — The street name and number (e.g., 123 Main Street).
  • Suite / Apt / Unit — Apartment, suite, or unit number if applicable (e.g., Suite 300, Apt 2B, etc.).
  • City — The city on file with your carrier.
  • State — The state or province.
  • ZIP Code — The postal code.
  • Country — The country (e.g., US).
Click Next to continue.
Even small differences — a misspelled street name, a wrong zip code, or an abbreviated word — can cause the port to be rejected. If you are unsure, request a CSR from your current carrier to verify the exact address on file.

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Step 4: Documents & Submit

This step requires two documents: a Letter of Authorization (LOA) and a recent invoice or CSR from your current carrier. Download and sign the LOA Z360 generates a pre-filled LOA for you based on the information you entered in the previous steps.
  • Click the Download LOA button in the “LOA Template Available” banner.
  • Review the document and make sure all the details are correct.
  • Sign the LOA — the signature must be from the authorized person on the account. You can use a wet signature (print, sign, and scan) or a valid electronic signature (DocuSign, Adobe Sign, or similar).
Upload both documents
  • Click the Letter of Authorization (LOA) upload area and select your signed LOA. Accepted formats: PDF, PNG, JPG.
  • Click the Recent Invoice / CSR upload area and select a recent invoice or CSR from your current carrier. Accepted formats: PDF, PNG, JPG.
The invoice should clearly show the phone number(s) being ported, the account holder’s name, and the service address. If your invoice does not list the phone numbers, a screenshot from your current carrier’s portal showing the numbers on your account is also accepted. Review the summary Before submitting, Z360 shows a summary of your port request at the bottom of the screen — including the number(s), account holder, authorized person, and address. Review this carefully. Once everything looks correct, click Submit Porting Request to send the port request.

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After Submission

Once submitted, Z360 handles the rest. Here is what to expect:
  • Processing time: Most US number ports take 7–14 business days. Simple ports (single line, no special features) may complete faster. Toll-free numbers and numbers with complex configurations may take longer.
  • Carrier confirmation: Your current carrier may contact you to confirm the port request. Respond and confirm as quickly as possible — delays here slow down the entire process.
  • Status updates: You can check the status of your port request from Settings → Phone Numbers in Z360.
  • Completion: When the port completes, your number becomes active in Z360 automatically. You can then use it for calls, SMS, and agent communication.

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Troubleshooting

  • Port request rejected for name mismatch — The account holder name and authorized person must match your current carrier’s records exactly. Contact your carrier for a CSR if you are unsure what name is on file.
  • Port request rejected for address mismatch — The service address must match exactly. Check with your carrier whether they have a street address, PO box, or a different format on file.
  • Port request rejected for missing account number or PIN — Some carriers require both. Contact your carrier to confirm your account number and whether a PIN or passcode is set on the account.
  • Invoice rejected — Make sure the invoice is recent (within the last 30 days is safest), shows the phone number(s) being ported, and is legible. If your carrier does not list numbers on invoices, upload a portal screenshot or CSR instead.
  • LOA rejected — Make sure the LOA is fully signed, legible, and the signer matches the authorized person on the account.
  • Port is taking longer than expected — Porting timelines depend on your current carrier. Ports around major US holidays may be delayed. If your port has been pending for more than 14 business days, contact Z360 support.

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Tips

  • Do not cancel your current carrier service until the port is confirmed complete in Z360. Canceling early can cause the number to be released and lost permanently.
  • Respond quickly if your current carrier contacts you to confirm the port — this is normal and helps speed up the process.
  • Request a CSR from your current carrier before starting if you are unsure about any account details. This single document has everything you need.
  • Port one number first if you have multiple numbers. Once the first one completes successfully, submit the rest.
  • Check your spam folder for any confirmation emails from your current carrier during the porting process.
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