Telebase
  • Signals
  • How It Works
  • Who It's For
  • Request access
Legal

Terms of Service

Last updated: 25 July 2026
On this page
  • 1. About These Terms
  • 2. Definitions
  • 3. Accounts and Eligibility
  • 4. The Service
  • 5. Credits and Billing
  • 6. Acceptable Use
  • 7. Your Obligations
  • 8. Carrier Requirements
  • 9. Data Protection
  • 10. Intellectual Property
  • 11. Confidentiality
  • 12. Warranties
  • 13. Limitation of Liability
  • 14. Indemnity
  • 15. Suspension and Termination
  • 16. Changes to These Terms
  • 17. Governing Law
  • 18. General
  • 19. Contact

1. About These Terms

These Terms of Service govern access to and use of the Telebase website at telebase.io and the Telebase API. They form a binding agreement between you and TELEBASE d.o.o. Beograd, a limited liability company registered in the Republic of Serbia, with its registered office at Jove Ilića 185, 11000 Belgrade, Voždovac, Serbia (company registration number 22316419, tax number 115830010) ("Telebase", "we", "us").

By creating an account, accessing the API, or using any Telebase service, you accept these Terms. If you are accepting on behalf of a company or other organisation, you confirm that you have authority to bind that organisation, and "you" means that organisation.

Telebase is a business-to-business service. It is not offered to consumers, and you may not use it for personal or household purposes.

2. Definitions

  • API: the Telebase application programming interface and any associated documentation, keys and tools.
  • Credits: prepaid units of usage that are deducted as queries are performed.
  • Query: a single request to the API in respect of a single phone number.
  • Results: the signals returned by the API in response to a Query.
  • Order Form: a document signed by both parties setting out the Credits purchased, the price and any specific terms.
  • DPA: the Telebase Data Processing Agreement.

3. Accounts and Eligibility

To use the API you must create an account and provide accurate registration details, including a working business email address. You must keep those details current.

You are responsible for all activity carried out under your account and your API keys, whether or not authorised by you. Keep your keys secret. Do not embed them in client-side code, mobile applications, public repositories or anywhere else they may be exposed. Tell us immediately at [email protected] if you believe a key has been compromised, and rotate it.

You may not share, resell or sublicense access to your account or your API keys, and you may not allow any third party to query the API through your credentials.

4. The Service

Telebase provides an API that returns telecom signals for a submitted phone number, which may include validity, carrier, country, line type, line status and SIM swap status.

The data is retrieved from third-party telecom aggregators and mobile network operators and is provided on an "as is" basis. Coverage, the availability of individual signals, and accuracy vary by country, by operator, and over time. We do not warrant that any signal will be available for any given number, or that any Result is accurate, complete or current.

Results are one input to a decision. They are not a determination of identity, fraud, creditworthiness or eligibility, and must not be used as the sole basis for any decision that produces a legal or similarly significant effect on an individual. You remain responsible for your own decisions.

We may add, change, deprecate or remove signals and endpoints. Where a change is material and adverse, we will give reasonable notice.

5. Free Queries, Credits and Billing

  • Free queries: new accounts are provisioned with a limited allocation of free Queries so that you can evaluate the service. Free Queries are granted once per organisation, carry no cash value, and may be withdrawn or varied at any time.
  • Prepaid Credits: beyond the free allocation, Queries are paid for in advance using Credits.
  • How Credits are purchased: Credits are purchased under an Order Form and paid by bank transfer against an invoice issued by Telebase. Credits are applied to your account once funds have cleared. There is no self-serve checkout.
  • Deduction: each answered Query deducts Credits at the rate set out in the applicable Order Form. A Query is answered when we return telecom data for the number, which includes a response confirming that no carrier record exists for it, and includes responses in which an individual signal is returned as unavailable because upstream data for that number or market does not exist.
  • Not charged: requests rejected for invalid or unparseable input, requests that fail because of an upstream provider timeout or error, requests declined for insufficient Credits, requests declined for rate limiting, requests declined for authentication failure, and requests that fail because of a fault on our side. Where Credits are deducted for any of these, they are restored to your balance.
  • Exhaustion: when your Credit balance reaches zero, further Queries are declined until additional Credits are applied.
  • Expiry: purchased Credits do not expire.
  • No subscription: there is no monthly platform fee and no annual commitment. Nothing renews automatically.
  • Tax: amounts are stated exclusive of any applicable value added or similar tax. Where a supply is subject to the reverse charge, you are responsible for accounting for the tax in your own jurisdiction.
  • Refunds: as set out in our Refund Policy.

Telebase invoices customers directly. There is no third-party merchant of record: invoicing and receipts are issued by Telebase.

6. Acceptable Use

Telecom data is sensitive and is made available to Telebase under agreements with mobile network operators. These restrictions are not optional and apply to every Query and to every use of the Results.

You must not use the API, or any Result, to:

  • market, advertise, or build, segment or target an audience, or to enrich a marketing database;
  • send unsolicited messages or calls, or to support telemarketing of any kind;
  • locate, track, monitor or surveil any individual;
  • harass, stalk, threaten, intimidate or harm any individual;
  • determine eligibility for credit, insurance, employment, housing, education or any government benefit;
  • infer, derive or assign any special category of personal data as defined in Article 9 GDPR, including data revealing health, religion, ethnicity, political opinion, trade union membership or sexual orientation;
  • discriminate against any individual or group on any basis prohibited by law;
  • build, populate, enrich or maintain a database, directory, profile or people-search service, whether for your own use or for onward supply;
  • resell, redistribute, sublicense, publish or otherwise make Results available to any third party, except as strictly necessary to serve your own end customer in the transaction for which the Query was made;
  • perform bulk enumeration, sequential dialling-range queries, list validation or list cleaning;
  • circumvent rate limits, daily caps, authentication or any other technical control, or to reverse engineer, scrape or replicate the service;
  • carry out any activity that is unlawful, or that would breach the terms imposed on Telebase by its upstream providers or by any mobile network operator.

You must query a phone number only where you have a specific, legitimate and lawful reason relating to your own relationship with the person concerned, such as onboarding, authentication, fraud prevention or a compliance obligation. Speculative, exploratory and third-party lookups are prohibited.

You must not cache or retain Results for longer than is necessary for the purpose for which the Query was made, and in any event not longer than any retention period specified in the Order Form or the DPA.

Breach of this section may result in immediate suspension or termination without refund, and we may be required to report the matter to our upstream providers or to the relevant mobile network operator.

7. Your Obligations

In relation to every phone number you submit, you act as the controller and Telebase acts as the processor. You are responsible for:

  • establishing and documenting a lawful basis under Article 6 GDPR, or the equivalent under other applicable law, for each Query;
  • providing any privacy notice or disclosure required of you as controller, including any disclosure required by a mobile network operator or by our upstream providers;
  • obtaining any consent that is required in your jurisdiction or by your own regulator;
  • responding to requests from data subjects in respect of the data you submit;
  • not submitting special category data, and not submitting phone numbers belonging to children;
  • complying with all laws applicable to your use of the service, including data protection, telecommunications, consumer protection and anti-discrimination law.

You warrant that you have the right to submit each phone number you send to the API for the purpose for which you send it.

8. Carrier Requirements and End-User Disclosures

Access to certain signals is granted to Telebase by mobile network operators through licensed aggregators, subject to conditions that flow down to you.

Where required, you must disclose to your own end users that their wireless carrier is authorised to use or disclose information about their account and their wireless device, where available, to Telebase or its service provider for the duration of the business relationship, solely to help identify them or their device and to prevent fraud.

You are responsible for surfacing that disclosure in your own terms, privacy notice or onboarding flow, in the manner required by the applicable operator or regulator. Telebase does not have a direct relationship with your end users and cannot make that disclosure on your behalf.

We may pass to our upstream providers, or to an operator, information reasonably required to demonstrate that Queries made through your account comply with these Terms.

9. Data Protection

The processing of personal data submitted to the API is governed by the Telebase Data Processing Agreement, which forms part of these Terms. A copy is available from [email protected] and is provided with every Order Form.

Telebase is established in Serbia, which is not the subject of a European Commission adequacy decision. Transfers of personal data from the European Economic Area or the United Kingdom to Telebase are made under the European Commission's Standard Contractual Clauses and, where applicable, the UK International Data Transfer Addendum, as incorporated into the DPA.

Our handling of personal data in our own right is described in our Privacy Policy.

10. Intellectual Property and Licence

Telebase, its software, documentation, brand and website are and remain the property of Telebase and its licensors. Nothing in these Terms transfers ownership of anything to you.

Subject to these Terms and to payment of the applicable fees, Telebase grants you a non-exclusive, non-transferable, non-sublicensable licence, for the term of your account, to access the API and to use the Results internally for the purposes permitted in section 6.

You may not use Telebase's name or marks without our prior written consent, other than a factual statement that you use the service.

11. Confidentiality

Each party may receive information from the other that is marked confidential or that a reasonable person would understand to be confidential. Each party will keep such information confidential, use it only for the purposes of these Terms, and disclose it only to those of its personnel and advisers who need it and who are bound by equivalent obligations.

These obligations do not apply to information that is or becomes public without breach, that was already known, that is independently developed, or that is required to be disclosed by law, provided that the disclosing party is notified where lawful.

12. Warranties and Disclaimers

Each party warrants that it has the authority to enter into these Terms.

Except as expressly stated, the service is provided on an "as is" and "as available" basis. To the maximum extent permitted by law, Telebase disclaims all other warranties, whether express, implied or statutory, including any implied warranty of merchantability, fitness for a particular purpose, accuracy or non-infringement.

We do not warrant that the service will be uninterrupted or error free, that any particular signal will be available for any number or in any country, or that any Result is accurate or current. Data availability depends on third-party operators and aggregators and may change without notice.

13. Limitation of Liability

Nothing in these Terms limits or excludes either party's liability for death or personal injury caused by negligence, for fraud or fraudulent misrepresentation, or for any other liability that cannot lawfully be limited or excluded.

Subject to that, neither party is liable for any indirect, special, incidental, consequential or punitive loss, or for loss of profit, revenue, business, goodwill, anticipated saving or data, however arising.

Subject to the above, each party's total aggregate liability arising out of or in connection with these Terms, whether in contract, tort including negligence, or otherwise, is limited to the total amount paid by you to Telebase in the three months immediately preceding the event giving rise to the claim.

Telebase is not liable for any decision you take on the basis of a Result, or for the acts or omissions of any automated system or agent you operate that consumes the API.

14. Indemnity

You will indemnify Telebase against any claim, loss, liability, cost or expense arising from your breach of section 6 (Acceptable Use), section 7 (Your Obligations) or section 8 (Carrier Requirements), or from any claim by a data subject, regulator, operator or upstream provider relating to your use of the service.

15. Suspension and Termination

We may suspend or limit access to the API immediately, and without liability, where we reasonably believe that:

  • your use breaches section 6, section 7 or section 8;
  • your account has been compromised, or your query pattern indicates abuse or automated enumeration;
  • continued access would place Telebase in breach of an obligation to an upstream provider or a mobile network operator, or would breach applicable law; or
  • we are required to suspend access by an operator, an aggregator or a regulator.

Where circumstances allow, we will tell you the reason and give you an opportunity to remedy the issue.

You may close your account at any time. Either party may terminate for material breach that is not remedied within 30 days of written notice.

On termination, your right to access the API ends immediately. Unused Credits are treated in accordance with the Refund Policy, except that no refund is due where termination follows your breach of section 6. Sections 6, 10, 11, 13, 14 and 17 survive termination.

16. Changes to These Terms

We may amend these Terms. Where an amendment is material, we will give account holders at least 30 days' notice by email or through the service before it takes effect. Continued use after the notice period constitutes acceptance.

If you do not accept a material change, you may terminate before it takes effect and request a refund of unused Credits in accordance with the Refund Policy.

17. Governing Law and Disputes

These Terms and any dispute arising out of or in connection with them are governed by the laws of the Republic of Serbia, without regard to conflict of law rules.

The courts of Belgrade, Serbia have exclusive jurisdiction, except that either party may seek injunctive relief in any court of competent jurisdiction to protect its intellectual property or confidential information.

Where the Data Processing Agreement incorporates the Standard Contractual Clauses, the governing law and forum provisions of those clauses prevail in respect of matters they govern.

18. General

Entire agreement. These Terms, together with any Order Form, the DPA, the Privacy Policy and the Refund Policy, form the entire agreement between the parties and supersede any prior discussion. Where there is a conflict, the order of precedence is: the DPA in matters of data protection, then the Order Form, then these Terms.

Assignment. You may not assign these Terms without our written consent. We may assign them to an affiliate or in connection with a merger, acquisition or sale of assets.

Severability. If any provision is held unenforceable, the remainder continues in force.

No waiver. A failure to enforce a provision is not a waiver of it.

No partnership. Nothing in these Terms creates a partnership, agency or employment relationship.

Force majeure. Neither party is liable for a failure to perform caused by an event beyond its reasonable control, excluding an obligation to pay.

19. Contact

Questions about these Terms, and all privacy and data protection enquiries: [email protected]

Postal address: Telebase d.o.o. Beograd, Jove Ilića 185, 11000 Belgrade, Serbia.

Telebase

Telecom intelligence for AI agents. The missing signal layer for fraud teams and autonomous agents.

Product

  • Pricing
  • How It Works
  • Signals
  • Who It's For

Developers

  • skills.md
  • Contact

Legal

  • Privacy Policy
  • Terms of Service
  • Refund Policy

© 2026 Telebase. All rights reserved.