What It Is, How to Find It, and Why It Matters
Most business owners and local SEO practitioners have never seen their GBP listing’s CID number. They do not know it exists until they need it, and when they need it, they typically need it urgently — during a support ticket, a suspension appeal, or a duplicate listing investigation.
Having it ready, knowing where to find it, and understanding what it can be used for is the kind of operational knowledge that saves significant time when things go wrong with a listing.
This guide covers what the Google Maps CID is, the three most reliable current methods for finding it, and the practical situations where it becomes the key piece of information you need to move forward.
CID stands for Customer ID in the Google Maps context.
It is a large integer, typically 18 to 19 digits long, that Google assigns to every business listing in its systems as a permanent unique identifier.
The CID stays with a listing throughout its life, regardless of changes to the business name, address, phone number, or category.
It is not visible in your GBP dashboard, but it is embedded in the URL of your listing on Google Maps and in Google’s internal systems.
CID vs Place ID: what is the difference
Google uses two different identifiers for business listings that serve different purposes and are sometimes confused.
The CID (Customer ID) is the older, stable numeric identifier used in Google’s internal systems, support processes, and the ludocid parameter in Maps URLs.
The Place ID is a newer alphanumeric identifier used in the Google Places API and in some developer-facing contexts. They are different identifiers for the same listing.
For most practical support and management purposes, the CID is the one you need. For API development work, the Place ID is more commonly required.
Why the CID is stable when other identifiers are not
Your business name, address, phone number, and category can all change over time. Google’s internal identity for your listing does not. The CID persists through name changes, address updates, ownership transfers, and profile merges.
This stability is exactly what makes it valuable as a reference identifier in support communications — it tells the Google support team specifically and unambiguously which listing you are referring to, regardless of what information on the listing may currently be in dispute or under review.
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Method 1: From the Google Maps URL (recommended)
This is the most straightforward method and requires no tools or extensions.
- Open maps.google.com in a browser on desktop.
- Search your business name in the search bar.
- Click on your business listing in the results to open its full profile panel on the left side of the screen.
- Look at the URL in your browser’s address bar. You are looking for a parameter called ‘ludocid’ followed by an equals sign and a long number. The URL will look something like this:
https://www.google.com/maps/place/Your+Business+Name/@...
...1s0x1234:0x56789abcdef01234...
...ludocid=12345678901234567...
5. The number after ‘ludocid=’ is your CID. It is typically 18 to 19 digits long.
If the URL does not contain ‘ludocid=’ directly, look for a hexadecimal string in the URL that begins with ‘0x’.
The CID can sometimes be extracted from this hex format by converting it from hexadecimal to decimal.
The ludocid format is more directly readable without conversion.
Method 2: From your GBP dashboard hover
This method works if you are signed in to the Google account that manages the listing.
- Go to business.google.com and select the listing you want.
- In the listing management dashboard, find any button or link that says ‘View on Maps’ or ‘View profile on Google.’
- Hover your mouse over this link without clicking. In the bottom bar of your browser, you will see the destination URL appear. Look for ‘ludocid=’ in that URL string.
- The number after ‘ludocid=’ is your CID.
This method is only available for listings you manage.
For finding the CID of competitor listings or other businesses, Method 1 is more practical.
Method 3: Using a Place ID to CID converter
If you already have the Place ID for a listing (available from the Google Places API or from tools that surface Place IDs), several online converter tools can derive the CID from the Place ID.
Search for ‘Place ID to CID converter’ to find current tools. This method is most useful in technical or agency contexts where Place IDs are already available from other data sources and the CID is needed for a specific task.
The key factor is this: the ludocid method from the Maps URL is the most reliable across all business types and all listing states. It works for your own listings, competitor listings, suspended listings, and listings you do not manage. Record your CID and store it somewhere accessible before you need it urgently.
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- Using CID in Google Support Tickets
This is where the CID delivers its most tangible time-saving value. Google’s GBP support team manages millions of listings.
When you contact support about an issue with a listing — a suspension, a merge, a duplicate, an incorrect edit — the fastest way to direct them to the exact listing in question is to provide the CID.
Why CID speeds up support resolution
Business names and addresses are not unique identifiers. There can be multiple businesses with similar names in the same city, multiple listings at the same address, or a listing whose name or address is currently wrong or under dispute, making it difficult for a support agent to confirm which listing you are describing from name and address alone.
The CID is unambiguous. It points to exactly one listing in Google’s database regardless of what its current name or address shows.
For suspension appeals specifically, providing your CID in your reinstatement request through business.google.com/reinstatement makes it easier for the reviewing team to locate the exact suspended listing without having to match it against a business name that may not currently match their records.
This reduces the likelihood of a response asking you to clarify which listing you mean, and reduces the overall time to resolution.
What to include in a support request alongside your CID
When submitting a support request or reinstatement appeal that references your CID, include alongside it: your business name as it currently appears on the listing, the registered address, the Google account email that manages the listing, and a clear description of the issue.
The CID is the precise identifier, but the other details help the support agent confirm they are looking at the correct listing from your perspective as well as from the database’s perspective.
Duplicate GBP listings — two or more listings for the same business at the same address — are among the most damaging structural problems a local SEO profile can have.
They split your review count between listings, dilute your ranking signals, and create entity confusion in Google’s systems.
Identifying and resolving duplicates requires knowing the CID of each conflicting listing.
How duplicates acquire different CIDs
Each GBP listing, even a duplicate of an existing business, receives its own CID when it is created. A business that has been set up twice, acquired a listing from a previous owner without proper transfer, or had an auto-created listing appear alongside a managed one will have two different CIDs in Google’s system.
Even though the two listings represent the same physical business, they are treated as separate entities by Google’s ranking and review systems.
The correct resolution for duplicate listings is to request a merge through Google’s support process, specifying the CIDs of both the listing you want to keep and the listing you want merged into it.
Having both CIDs ready allows the support team to process the merge accurately rather than identifying the listings by name and address, which is slower and more error-prone.
Finding the CID of a duplicate you do not manage
If a duplicate of your listing exists that you did not create and do not have management access to, you can still find its CID using Method 1 from the previous section.
Search the business name and address combination in Google Maps, identify the duplicate listing in the results, and extract its CID from the Maps URL.
This CID, combined with your managed listing’s CID, gives you both identifiers needed to submit a complete merge request.
Track Rankings Across Your Full Service Area
Once you have your CID and your listing is correctly configured, GMB Crush’s geo-grid shows your Map Pack position at every point across your service area.
- Building a Direct Link to Your Listing
The CID can be used to construct a direct URL that takes anyone who clicks it straight to your GBP listing on Google Maps, regardless of what device they are using or how Google’s search results are currently displaying.
Constructing a direct Maps link
The format for a direct link to a GBP listing using its CID is:
https://www.google.com/maps?cid=YOUR_CID_NUMBER
Replace YOUR_CID_NUMBER with your actual CID (the 18 to 19 digit number found using the methods above).
This URL, when opened, takes the user directly to your listing in Google Maps without requiring a search.
Uses for the direct listing link
- Review request links: a link directly to your listing makes it easier for customers to leave a review than asking them to search for your business. Combine it with the review-specific URL format for the most direct path to the review interface.
- Website footer and contact page: linking directly to your Maps listing from your website contact page gives customers instant access to your full GBP profile including hours, reviews, and directions.
- Email signatures and printed materials: a QR code generated from your direct listing URL on business cards, flyers, or email signatures drives engagement with your GBP profile from every customer touchpoint.
- Agency client reporting: when presenting GBP performance reports to clients, a direct listing link allows them to view their live profile immediately from the report without needing to search for it.
For businesses and agencies managing multiple GBP listings, maintaining a record of the CID for each listing is an operational efficiency measure that pays dividends every time a support issue, audit request, or client report requires referencing a specific listing.
Building a CID reference library
If you manage more than a handful of listings, create a spreadsheet that records for each listing: the business name, the address, the managing Google account email, the direct Maps URL, and the CID.
Update this when new listings are added and verify it periodically, since CID does not change but the other details may.
This reference library is particularly valuable when a support issue arises for a listing that has had problems before. Having the CID, the account email, and the previous support case history for each listing in one place means any team member can handle a support interaction for any listing without needing to hunt for the relevant identifiers under time pressure.
CID and listing transfer between accounts
When a GBP listing is transferred from one Google account to another — a common occurrence when an agency relationship ends or a business is sold — the CID remains the same.
The listing’s permanent identity does not change. This means that a CID recorded before a transfer is still valid after it, and can still be used to reference the listing in any subsequent support communications or tracking spreadsheets.
Recommended Reading
GBP Multiple Locations: the complete management guide for businesses operating more than one listing
- GMB Crush Takeaways
The CID is a small piece of operational knowledge that most business owners and even many local SEO practitioners have not recorded.
The moment you need it, you typically need it quickly.
Here is the action sequence:
- Find your CID now using the Maps URL method: search your business on maps.google.com, open your listing, and look for ‘ludocid=’ in the browser address bar. The number that follows is your CID.
- Record it somewhere accessible alongside your GBP account email and the direct Maps URL for your listing. A simple spreadsheet entry is sufficient.
- If you manage multiple listings, record a CID for each one. Build the reference library now rather than finding yourself hunting for CIDs during a suspension appeal or client support escalation.
- Use your CID proactively: include it in any support ticket or reinstatement request involving your listing. It is the fastest way to confirm to Google’s team exactly which listing you are referring to.
- If you have a duplicate listing problem, find the CID of the duplicate using the Maps URL method and include both CIDs in your merge request. Having both identifiers ready significantly speeds up the merge process.
The CID is not a ranking signal, a profile feature, or an optimisation lever. It is a maintenance and support tool that becomes essential the moment something goes wrong with a listing.
Five minutes spent finding and recording it now is worth far more than an hour spent trying to locate it during a support escalation. Find it, record it, and move on.
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