What is a Porting PIN?
When you port your number to Telnyx, your current carrier may require a PIN, passcode, or transfer code to authorize the move. This is a security feature — it prevents unauthorized number transfers.
⚠️ Important: This is NOT your carrier account password or login PIN. It's a separate code specifically for number porting.
Why Does This Matter?
If the PIN doesn't match your carrier's records, your port will be rejected with PASSCODE_PIN_INVALID. This is the #1 cause of porting delays — but it's always fixable.
How to Get Your PIN
AT&T
Log in at att.com → My AT&T → Account profile → Wireless passcode
Or call 611 and ask for your "wireless passcode"
Verizon
Log in at verizon.com → Account → Security → Account PIN
Or call 611 and ask for your "account transfer PIN"
T-Mobile / Metro by T-Mobile
T-Mobile generates a temporary transfer PIN: My T-Mobile → Account → Transfer your number
The PIN is valid for 7 days — generate it right before submitting your port request
Spectrum / Charter
No self-service option — call 1-833-949-0036 and ask for your "number transfer PIN"
Lumen / CenturyLink
Call 1-800-244-1111 and ask for your "account transfer authorization code"
Bandwidth / Wholesale Carriers
Contact your account manager or reseller directly
CLEC / Regional Carriers
Call the carrier's business support line and ask: "What is the PIN or passcode needed to port my number to a new carrier?"
Tips
Your carrier may have a default PIN (often the last 4 digits of your account number or phone number)
Some carriers generate a new PIN each time — don't use an old one
If your port keeps getting rejected, ask the carrier to verify what PIN they have on file rather than guessing
Still Having Issues?
Contact our porting team at porting@telnyx.com with the PIN you're using and your carrier's name. We can work with the carrier directly.