You should put your current mobile number on your dog’s tag first, then your dog’s name, and then a suburb and postcode or “microchipped” if space allows, keeping the engraving large and easy to read. This order helps a finder contact you immediately without needing extra steps or apps. If you only have room for one thing, make it the phone number you answer most often.
A dog tag is not decoration. It is a fast, low-tech return system that works when batteries die, phones have no signal, and your dog is too stressed to respond to a call. In real-world “found dog” moments, people scan for the quickest clue they can act on in seconds. The clearer the engraving, the faster your dog gets home.
Key Takeaways
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Your mobile number is the single most important detail on any dog tag.
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Add your dog’s name to help a finder handle, calm, and call your dog safely.
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Use suburb + postcode instead of a full street address for privacy and faster local returns.
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Add a second contact and a short medical note only if it stays readable.
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“Microchipped” helps, but only if your chip registration details are up to date.
The fastest-return rule: what a finder needs in 10 seconds
When someone finds a dog, their decision-making is simple:
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Is this dog safe to approach?
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Can I contact an owner right now?
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Can I return the dog locally, or do I need a vet or council pound?
A readable tag short-circuits the whole process. It turns “post in a local Facebook group and hope” into “call owner and reunite in minutes.” That speed matters because dogs that end up entering the shelter system do not always make it back home. In the U.S., Best Friends Animal Society reports that 20.2% of dogs entering shelters were returned to homes in 2024. The point is not to scare you. It is to underline why tags and microchips are practical, not optional.
The essential info every dog tag should include
1) Your current mobile phone number (non-negotiable)
If you only engrave one thing, engrave a phone number you will actually answer. Not a landline you never hear. Not a work number that routes to reception. Your mobile is the “return lever” that a stranger can pull instantly.
Best practice
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Use one clear number, no extra symbols.
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If you travel often or have poor reception at home, consider adding a second number on the back (more on that below).
2) Your dog’s name (high value, low risk)
A dog’s name does two things a lot of owners miss:
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It helps a finder calm the dog (saying a name is more effective than “hey dog”).
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It helps bystanders coordinate (“Bella is with me, I’m calling the owner”).
It also reduces handling mistakes. People are more likely to move slowly, offer water, and keep a dog secure if they feel a basic connection.
3) Suburb + postcode (the privacy-safe location cue)
Your suburb and postcode help a good Samaritan decide if this is a neighbourhood dog who slipped a gate or a dog that has travelled. It also helps local pounds and vets prioritise the right region.
For most households, this gives enough location context without advertising exactly where you live.
Optional upgrades that genuinely improve return odds

Add a second contact number (if your tag stays readable)
A backup contact is useful when:
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your phone is on silent
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you are in a meeting
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you are driving or on a flight
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the finder tries once and gives up
Choose someone who:
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will answer unknown numbers
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knows your address
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can collect the dog quickly
Should you put “Microchipped” on the tag?
Yes, if you have room and the tag remains easy to read.
“Microchipped” helps in two situations:
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the finder cannot reach you immediately and goes to a vet or shelter
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the collar has slipped off, but your dog still has a chip
Microchips materially improve reunification rates. The American Animal Hospital Association (AAHA), citing AVMA data, notes that lost dogs with microchips were returned to owners at 52.2% vs 21.9% for dogs without microchips.
If you use a QR code tag (or a QR add-on), treat it as a bonus layer, not a replacement for a readable phone number, since scanning depends on a working camera, signal, and someone willing to scan.
Medical notes: what works and what backfires
Medical engraving is valuable when it changes how a stranger responds in the next hour.
Good examples (short and actionable)
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“Needs meds”
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“Allergy”
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“Diabetic”
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“Seizures”
Avoid
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long diagnoses
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medication lists
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anything that shrinks the font until it is unreadable
If your dog has complex needs, the best setup is often two tags: one for contact, one for medical or chip cues.
What not to put on a dog tag (privacy, safety, and low-value info)
Skip a full street address for most dogs
A full address is usually unnecessary for reunion and can create a security risk. A suburb and postcode typically provide enough local context.
Skip age and breed
Age and breed do not help someone reunite your dog with you. They take up space that could be used for a second contact number or a medical note.
Be cautious with “reward”
It can attract the wrong kind of attention and does not help the finder take the next step. Clear contact details do.
How to fit it all without making the tag unreadable
Readability is not a style preference. It is function.
Rules that keep engraving legible
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Prioritise fewer words over smaller text.
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Use line breaks so numbers do not wrap awkwardly.
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Avoid long phrases like “If found please call.” The phone number already implies it.
A simple layout that works
Front:
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DOG NAME
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04XX XXX XXX
Back:
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SUBURB 2000
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MICROCHIPPED
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or 2ND NUMBER
Two-tag setup vs one tag: when each works best
One tag is enough when
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you can fit name + mobile + suburb/postcode clearly
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your dog has no urgent medical needs
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you prefer minimal jingle and weight
Two tags are better when
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you want two phone numbers plus suburb/postcode
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you need a medical cue like “Needs meds”
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your dog boards, travels, or is walked by multiple people
Many people stop reading when a tag looks crowded. Two tags keep the text big.
Special situations and best-practice wording
Puppies and newly adopted dogs
Puppies slip collars and back out of harnesses. New rescues may bolt. Use:
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Name + your mobile + suburb/postcode
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Consider “Shy” or “Do not chase” for fearful dogs
Senior dogs and chronic conditions
For dogs with conditions that matter fast:
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“Needs meds” (short, effective)
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Put the medical cue on a second tag if it reduces readability
Indoor dogs still need tags
Most “indoor-only” dogs who go missing do not plan it. It is a door left ajar, a visitor, a storm, or a dropped lead. A tag is cheap insurance for a very normal human mistake.
Travelling, boarding, dog walkers, shared custody
If someone else regularly handles your dog, consider:
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your number first
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a second trusted contact
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suburb/postcode for local context
“Microchipped” is only helpful if your registration is current
Microchipping is strongly recommended, but it only works if the contact details linked to the chip are accurate. RSPCA Australia explicitly highlights the importance of keeping your database contact information up to date, especially after moving house or changing phone numbers.
A very current Australia-specific note: microchip registries can change. In 2025, Australian pet owners were advised by multiple veterinary and emergency services to check if their pet was registered with the HomeSafeID registry and transfer details if needed, using the national lookup tool (Pet Address) to identify the correct database.
Practical habit that prevents heartbreak:
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every time you change your phone number, update your microchip details the same day
FAQs
1) What should I put on my dog’s tag if I’m often unreachable (meetings, night shifts, no signal)?
Use a second contact who reliably answers unknown numbers, and consider adding a short “TEXT OK” note if you respond faster to texts than calls.
2) Should I include an international dialling code on my dog’s tag?
Add +61 if you travel, live in a tourist-heavy area, or your dog could be found by someone using a non-AU phone. It prevents failed calls when a finder tries to dial your number.
3) What should I do if my dog loses their collar a lot?
Switch to a more secure setup (properly fitted collar + strong split ring) and consider a second ID method like an engraved collar or slide-on tag so your contact info stays with your dog.
4) How often should I replace or re-engrave a dog tag?
Replace it immediately if the engraving is hard to read, the edges are worn smooth, or the ring hardware is bending. A quick check every 3–6 months (or after beach trips) helps catch wear early.
5) Can I put my dog’s registration number on the tag, and is it worth it?
It can help if a council ranger finds your dog, but it’s usually lower priority than phone + suburb/postcode. If you have room, place it on the back or on a separate council tag to keep your main tag readable.
Conclusion

A dog tag only works if a stranger can read it quickly and contact you immediately. That is why your current mobile number belongs first, in the largest, clearest engraving, followed by your dog’s name and a suburb + postcode for local context without oversharing. Add “MICROCHIPPED”, a second contact, or a short medical cue only if it does not shrink the font or crowd the layout.
At Pet ID Tags, we see the same pattern again and again: the tags that get dogs home fastest are the simplest ones with big, legible details that stay accurate over time. That is why we offer a collection of dog tags in stainless steel and aluminium, available in shapes like bone, heart, round, and more, so you can choose a style you love without compromising readability.