Start with the registry, not the chip itself
A microchip holds only a number. When a vet, rescue, or warden scans your rabbit, that number is looked up in a registry database, and it is the address and phone number stored there that decide whether you get a call. Moving house does not change anything on the chip, so the job is entirely about updating the registry record linked to that number.
Find the number first. It should be on your rabbit's vaccination card, adoption paperwork, or the original implantation certificate. If none of those are to hand, book a quick scan at your vet practice — most will scan a registered patient free and read the number back to you. The first digits of the number also identify which registry holds the record, which your vet can confirm if you have accounts with more than one database from previous pets.
Making the change and proving it stuck
Log in to the registry account or call its keeper line and change three things together: your new postal address, the mobile number you actually answer, and your email. Add or refresh an emergency contact who lives at a different address — a relative or trusted friend — because that person is the backup if your rabbit is found while you are still mid-move, with phones packed or numbers in transition.
Ask for confirmation in writing, by email or letter, and do not treat an on-screen "saved" message as enough. Registries occasionally have duplicate records for one chip, especially for rabbits rehomed before you got them, so confirm the updated record is the one that appears when the number is searched. A practical test is to ask your new vet, at your rabbit's first visit after the move, to scan and read back the contact details the search returns. If the old address appears, go back to the registry with the chip number and the confirmation and ask them to merge the duplicates.
The move-week traps specific to rabbits
Rabbits are most likely to be lost during the chaos a move creates: doors propped open for furniture, garden gates left unlatched, and carriers opened in unfamiliar rooms. Update the registry before moving day if you can, not after, so there is no window where your rabbit is at the new address but the record still points to the old one. Keep your rabbit in one closed, quiet room with the carrier, hay, and water while boxes move around them, and put a note on that door for anyone helping you.
Register with a vet near the new home in the first week or two, even if your rabbit is not due a visit. That first appointment is a good moment to check the chip still scans in its usual place between the shoulder blades, check vaccination dates carried over from the old practice, and have your old records transferred so the health history follows the rabbit rather than staying behind.
Keeping the record current from now on
Treat the chip record like the address on any other important account: review it whenever your phone number changes, not just when you move. Note the registry name, the chip number, and the date you last confirmed the details somewhere you will find them quickly — the front of your rabbit's paperwork folder works well — because in a lost-pet panic nobody remembers which database they used.
A chip only helps if the trail behind it is accurate, and that trail is yours to maintain. KinsLe's Pet Pass puts your rabbit's verified identity alongside your current contact details on one ID card you can show at a new vet, a boarding service, or to anyone who finds your rabbit, which makes those move-week introductions much simpler.