Register Your Cat’s Microchip

Enter Microchip Number
Note: Microchips do not contain the letters I or O but may contain numbers One or Zero instead. Enter only microchip numbers and letters with no asterisk * commas, words, spaces or hyphens-
Cat microchip registration icon

Petkey links your cat’s microchip to your contact information so vets, shelters, and animal control can reach you instantly if your cat is found — helping bring them home faster.

Why Register Your Cat’s Microchip With Petkey?

  • Works with all cat microchip brands — no matter where your cat or kitten was chipped, you can register with Petkey.
  • Lifetime registration — once registered, your cat’s microchip is permanently linked to your contact information.
  • Free contact updates anytime — keep your details current so you can always be reached.
  • 24/7 live support — our US-based recovery team is here for you, seven days a week.
  • Lost Pet Alerts — automatically sent within a 25-mile radius to local vets, shelters, and rescues to help bring your cat home fast.

Lifetime Cat Microchip Registration

A microchip without registration is just a number. Petkey links your cat’s microchip to your contact details for life, so you can be contacted instantly if your cat ever goes missing. Registration only takes a few minutes but gives you a lifetime of protection and peace of mind knowing your cat — or kitten — is always connected to you.

How Cat Microchipping Works

Microchipping a cat is a quick and safe procedure performed by your veterinarian. The chip, about the size of a grain of rice, is inserted just beneath your cat’s skin between the shoulder blades.

When a lost cat is found and scanned, the chip’s unique ID number appears. If your cat’s microchip is registered with Petkey, we will be contacted immediately so we can help reunite you.

Why Registration Matters

Only registration connects your cat or kitten’s microchip number to you. Without it, shelters, vets, and other pet professionals can’t reach you if your cat is found. Petkey’s registration ensures your cat’s microchip is always linked to your contact info — for life — so your cat can find their way home.

Petkey vs Other Pet Microchip Companies

Feature Other Registries Petkey™ Protection
24/7 US-Based Support (English & Spanish) Limited or offshore Yes — Real people here in the US
Lost Pet Alerts (25-mile radius) Not offered Yes — Alerts sent instantly to vets, shelters & good Samaritans with Petkey
Direct Contact with Finder No, messages routed through the registry Yes — You can connect directly
Register Without a Microchip Usually not allowed Yes — Any pet can be registered
Free Lifetime Updates Often charge for changes Yes — Unlimited updates at no extra cost
Mobile App Access Not available Yes — Manage your pet’s info anytime, anywhere

Frequently Asked Questions

How do I register my cat or kitten’s microchip?

Enter your cat’s microchip number above and click Register My Cat’s Microchip. You’ll be guided through a quick, secure registration process that links your contact details to your cat’s permanent ID.

Does Petkey work with my microchip brand?

Yes. Petkey accepts all cat microchip brands.

Is registration really for life?

Yes. Petkey provides a lifetime registration with free updates anytime.

Can I update my cat's microchip information?

Yes. You can update your contact details with Petkey anytime for free, ensuring your cat’s microchip record always has your most current information.

What happens if my cat's microchip isn’t registered?

If your cat’s microchip isn’t registered, no one will be able to contact you if your cat is found. Registering with Petkey connects your cat’s unique microchip number to your contact information, so vets, shelters, animal control and Petkey can reach you right away and help bring your cat home fast.