Chip number

Is your dog, cat or other pet missing? Then it is good to know that you and your pet can be reunited. PetBase registers the chip numbers of dogs, cats, rabbits, ferrets, horses and all other animals who can be microchipped, so that retrieved pets can be returned to their owners easily. Authorized professionals and institutions such as vets, animal shelters and breeders are able to access the information. As the owner, you decide which information is displayed.

Deceased pets

It is very saddening when a family loses a pet. A pet is often part of the family and is loved likewise.

Despite the sorrow, we would like to ask you to deregister your pet from PetBase. This way, you prevent us from sending you e-mails to check your pet’s details. You can deregister by logging in to your personal page and change your details. Deregistering a deceased dog is required by law.

Moving house with pets

If you move somewhere else, you naturally take your pet with you. It takes some time for your pet to get used to his/her new surroundings and to find its way back after a walk. It happens all too often that a pet goes missing after a move. Make sure to report your move to PetBase. Our Plus Package allows you to do this in advance and enter the date of the move and the new address.

Obviously, this does not only apply after moving house. Your details should always be up to date so that service personnel can always reunite you with your pet. You can make changes for free at PetBase.

Report your move here.

Changing pet details

A vet, or other professionally qualified person, is allowed to microchip and register a dog, cat or other pet. As the animal’s (new) owner, it is possible for you to view and change the details. You decide which details are visible when [in case] service personnel need to read out your pet’s microchip. Changing details is entirely free at PetBase.

Pet owners can view and change their details here.

Every microchip has a unique registration number. This enables identification of your pet once it has been found [after being lost], so you and your pet can be reunited. The chip nestles in your pet’s body, making it impossible to remove. Also, the registration number cannot be changed, therefore microchipping and registering is fraud-proof.

It is important to always register the animal after microchipping and also to report any changes, in case of moving house, for example. If the details are outdated and the animal goes missing, it is not possible to reunite you with your pet after it has been found.

Is your pet missing? Check your details in the database and always report missing animals with Amivedi!


Reporting a litter of pups/kittens

Are you a vet or a breeder and do you wish to register a complete litter? This will soon be possible with PetBase!
The microchipping and registration of cats and dogs is important, for dogs it is compulsory in fact. With PetBase it is possible to report a litter in one go, saving lots of time. Fast and simple!

According to European law, the breeder is considered the first owner and is required to have the litter microchipped and registered (for dogs only). As soon as the animal finds a new owner, it is easy to transfer ownership.


Afbeelding labrador poes PetBase

How do I register and where?

Your pet can be chipped by your veterinarian, animal shelter or breeder. They can carry out the initial registration with PetBase. After registration, you will receive your login details, allowing you to change any details yourself. You decide which information is visible once your pet has been found. At Petbase we also offer the Plus Package which, for example, allows you to add extra phone numbers, report a move, enter a temporary holiday address and place a picture of your pet.

You can change your details at any moment, at no costs. Make sure your details stay up to date, because if they are outdated and your pet goes missing, it is impossible to reunite you with your pet.

Afbeelding dierenartsen PetBase

Also, always report a missing animal with Stichting Amivedi.

How does microchipping work?

foto algemeen chippen

Not everyone is allowed to microchip an animal. A chip may be applied by a veterinarian or other professionally qualified person.

A microchip is actually a transponder; an elongated tube of 8-12mm in length, about the size of a rice grain, made of synthetic material or bioglass. The tube contains an antenna (reel) and a chip with a unique 15-digit code, hence the name ‘microchip’. The transponders all comply with ISO-standards, so they can be read out worldwide. The chip itself does not contain name or address details. Therefore, it is important to have the chip registered at all times. Without registration, microchipping is useless.

The chip is applied between the shoulder blades using an injection needle. The chip becomes encapsulated, ensuring it remains in place. The feeling an animal gets is the same as with a normal injection.


All information, and the chip itself, is checked both before and after chipping. The vet can register the information for you. You can change these details and indicate any preferences. You decide which details are visible when the chip is read out.

Vets, animal shelters, the animal ambulance, police, etc all use a reading device to retrieve the chip number once they have found a pet. This device provides the chip with energy, enabling it to send back the code. This means there is neither a battery inside the chip nor a GPS receiver for determining location. The chip lasts a lifetime.

Compulsory identification and registration for dogs (I&R)

Since 2013, it is compulsory in the Netherlands to microchip all dogs and register them in a government-approved database such as PetBase. This identification and registration (I&R) is compulsory for all dogs born in, or imported to, the Netherlands. They must be microchipped within seven weeks after birth and registered within eight weeks after birth.

Dogs imported to the Netherlands need to be registered within two weeks after arrival. Only dogs who have already been microchipped, combined with an official pet passport, are allowed to enter the country – save for dogs staying in the Netherlands for no longer than three months.

The dog’s owner needs to take on these commitments. A breeder or importer of dogs is considered the first Dutch owner and needs to register the animal in his/her name. If a dog gets a new owner, it is easy to report this change online.

Welcome to PetBase

PetBase is a government-approved database for registering microchipped dogs and other pets. Because it has been microchipped, we can reunite you and your pet once it has been found. Your vet, animal shelter or breeder can take care of the registration for you. Make sure your information is correct and do not forget to update in case of any changes, such as moving house.

“Animals are reliable, give lots of love, are faithful to their owners, predictable in their behaviour, thankful and loyal. Qualities which we humans can learn from.”


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Vlierweg 38A
3991 BD  Houten

International +31(0) 30 63 55 700

You can reach us on working days between 10.00-11.00 a.m. and 16.00-17.00 p.m.


PetBase is part of Europetnet, so that your pet can also be traced abroad.

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