Pet Microchips: How to Check Registration and Keep Contact Details Current

By Dr Duncan Houston

Knowing that your dog or cat has a microchip is reassuring, but it leaves an important question unanswered: if someone scanned that chip today, would the record lead to you?

A move, a changed phone number or an unfinished adoption transfer can break that link. Checking the record while your pet is safely at home is much easier than trying to reconstruct it during a search.

Quick Answer

A pet microchip supplies an identification number when read by a compatible scanner; it does not show a live location. That number needs to be connected to current contact details in an appropriate registry. Confirm the number, find the correct registry, check the registered contact and keep the confirmation with your pet's records.

How a microchip helps a found pet get home

The chip beneath the skin has no battery to recharge. A compatible scanner activates it and displays its number. A veterinary clinic, shelter or other authorised service can then use that number to locate the relevant registration record.

The number and the record are different things. Updating a phone number normally means changing the registry entry, not changing the chip inside the animal. A paper certificate showing a chip number is useful, but it does not prove that the online record still contains the right details.

Microchipping supports identification if a collar or tag is lost. It does not prevent escape, replace a search or guarantee a reunion. Someone still needs to find the animal and arrange a scan.

Run a four-part registration check

1. Confirm the number belongs to this pet

Find the microchip certificate, adoption paperwork or veterinary record. Check the pet's name and identifying details, especially if your household has several animals.

If records are missing or numbers disagree, ask your veterinary practice to scan the pet and help resolve the mismatch. Do not guess a digit or assume two similar-looking records refer to the same animal.

2. Identify the actual registry

Use the registry named on the paperwork, or ask the implanting practice or adoption organisation for help. A chip manufacturer, a registration database and a paid recovery service may not be the same organisation.

In the United States, AAHA's Microchip Registry Lookup Tool searches participating databases and identifies companies to contact. It is a directory service, not the place to create or edit the pet's registration. It also does not display the owner's contact details.

Outside the United States, use the system relevant to your location. For example, GOV.UK provides information about recognised UK databases, while the NSW Pet Registry account guide explains its process for linking an animal to an owner's account. An overseas lookup is not a substitute for checking local requirements.

3. Open the record and check the contact details

Confirm the main telephone number, email and address, along with the person registered as the contact. Where the registry supports an additional contact, make sure that person has agreed and that their details are current too.

Do not stop at seeing the pet appear in an account. Read the actual fields. A familiar pet photo alongside an old mobile number is still an outdated record.

Check the registry's privacy and contact procedures so you understand how a finder or animal service will reach you. A public chip lookup should not be expected to reveal a person's address.

4. Keep evidence that the update completed

Save the confirmation, the chip number and the registry's official contact information together. If an update remains pending, follow the registry's stated process until it is confirmed.

Keep a copy accessible to the person who looks after your pet when you travel. That person needs enough information to report the pet missing and reach you, without receiving unnecessary account access.

Adopting or rehoming a microchipped pet

An existing chip does not automatically mean the registration has transferred. Ask the shelter, rescue, breeder or previous keeper which steps they will complete and which steps you must take.

• Obtain the chip number and registry name
• Confirm whose details are currently recorded
• Ask what documents or previous-keeper approval the registry requires
• Check that the transfer has finished, rather than relying only on an application receipt
• Keep adoption or transfer documents with the chip record

If the registered person cannot be contacted, follow the registry's verification process. Do not try to work around a disputed or incomplete transfer by making conflicting records. A registry entry also should not be treated as the only document relevant to an ownership disagreement.

What if the registry has changed?

Companies can change names, move account systems or stop operating. An old bookmark failing does not tell you whether the implanted chip works.

Use the registry's verified current website, the original practice or an appropriate lookup service to establish the next step. For example, 24Pet announced that its 24Petwatch microchip accounts would move to PetPlace in 2026. A changed portal and a missing implant are very different problems.

Before paying a fee, find out what it covers. Basic registration, updating details and optional recovery memberships are different services, and charges vary. Do not assume a marketing renewal notice describes the only way to maintain an accurate contact record.

What happens at a microchipping appointment?

A trained professional places the small chip beneath the skin using a needle. It can usually be done during a routine veterinary visit without surgery or general anaesthesia. Ask the practice about the procedure and the registration steps that come with it.

Follow the veterinarian's individual instructions afterwards. Do not attempt to implant, remove or reposition a chip yourself.

Ask for the chip to be checked during routine care and keep the number in your records. Scanning confirms that the number can be detected; checking the database confirms that it leads to current details. One check does not replace the other.

Why visible identification still matters

A readable contact tag may let someone reach you before a scanner is available. Check that the details remain legible and that the collar or harness arrangement suits your pet. Follow any local identification requirements.

A digital tag has a different role again. The ASK A VET™ shop includes a QR and NFC Smart ID Tag for dogs and cats that opens a pet profile for a finder. Its profile must be set up and maintained; it is not an implanted microchip or a live GPS tracker.

Whatever visible identification you choose, keep its contact information consistent with the microchip record. Do not let a new tag create the impression that the older registry no longer needs attention.

If your pet goes missing

Contact the registry and use its missing-pet process. Confirm your contact details again, keep your phone available and share a current photo and description with the appropriate local shelters, animal services and veterinary practices.

Continue the local search rather than waiting for a chip alert. A standard implanted chip does not send a notification just because the animal crosses a boundary or moves away from home.

If you find a pet, ask a local veterinary practice, shelter or animal service about arranging a scan and following the local found-animal process. Do not assume that an animal without a visible tag has no home.

Common mistakes to avoid

• Assuming the implant appointment automatically completed registration
• Updating the veterinary clinic but not the separate microchip registry
• Leaving an adopted pet registered only to a previous keeper
• Expecting AAHA's lookup to edit a record or reveal an owner's address
• Believing a microchip works like a GPS collar

Frequently Asked Questions

Can my phone read my pet's implanted microchip?

A normal phone is not the compatible animal microchip scanner used by a veterinary practice or shelter. Scanning a QR tag with a phone is a separate process.

Does moving house mean my pet needs a new chip?

A change of address normally requires a registry update, not a replacement implant. Confirm the new address with the company holding the record.

What if I do not know the chip number?

Check the adoption and veterinary records or arrange a scan with a suitable local service. Ask for the number in writing so it can be kept with your pet's documents.

Does a chip guarantee my pet will be returned?

No. It provides a valuable identification route, but discovery, scanning, a traceable registration and successful contact are still needed.

The useful check to make today

Find the number, open the correct registry and read the contact fields. Resolve any mismatch while your pet is at home, then save the confirmation. A maintained record is what turns a scanned number into a practical way to reach you.

Sources

American Veterinary Medical Association microchipping FAQs; AAHA Microchip Registry Lookup guidance; GOV.UK microchipping information; NSW Pet Registry account guidance; 24Pet's official registry-transition announcement. Tag features checked against the ASK A VET™ shop.

ASK A VET™ supports keeping identification and contact records ready before they are needed.