https://community.sinch.com/t5/Number-Lookup-API/Number-Lookup-API-Migration-Q-amp-A/ta-p/19623 <P data-renderer-start-pos="103"><STRONG data-renderer-mark="true">Q: What is changing with the Number Lookup service?</STRONG><BR />We're upgrading to the new <STRONG data-renderer-mark="true">Number Lookup API</STRONG> — built on updated data sources with improved data quality, broader coverage, and new capabilities like additional fraud signals. This replaces the legacy Number Lookup product.</P> <P data-renderer-start-pos="103">&nbsp;</P> <P data-renderer-start-pos="379"><STRONG data-renderer-mark="true">Q: Why is this change happening?</STRONG><BR />The new API delivers:</P> <UL class="ak-ul" data-indent-level="1"> <LI> <P data-renderer-start-pos="437">Improved data accuracy and compliance</P> </LI> <LI> <P data-renderer-start-pos="478">New features such as SIM swap detection, reassigned number checks, and advanced VoIP detection</P> </LI> <LI> <P data-renderer-start-pos="576">A more scalable, future-proof architecture aligned with emerging industry standards like CAMARA</P> </LI> </UL> <P data-renderer-start-pos="675"><STRONG data-renderer-mark="true">Q: When do I need to migrate?</STRONG><BR />The legacy Number Lookup product reaches <STRONG data-renderer-mark="true">end of life at the end of 2026</STRONG>. You should start your migration now to allow sufficient time to plan, integrate, test, and cut over without disruption.</P> <P data-renderer-start-pos="675">&nbsp;</P> <P data-renderer-start-pos="899"><STRONG data-renderer-mark="true">Q: Is this migration mandatory?</STRONG><BR /><STRONG data-renderer-mark="true">Yes.</STRONG> The legacy Number Lookup API will be retired at the end of 2026, and all customers must migrate to the new Number Lookup API before then. After retirement, the legacy API will no longer be available. New features and enhancements are only being developed on the new API.</P> <P data-renderer-start-pos="899">&nbsp;</P> <P data-renderer-start-pos="1208"><STRONG data-renderer-mark="true">Q: What do I need to do to migrate?</STRONG></P> <OL class="ak-ol" start="1" data-indent-level="1"> <LI> <P data-renderer-start-pos="1247"><STRONG data-renderer-mark="true">Sign an updated agreement</STRONG> — a contract amendment or new order form is required due to changes in data providers.</P> </LI> <LI> <P data-renderer-start-pos="1363"><STRONG data-renderer-mark="true">Update your integration</STRONG> — the new API uses a new endpoint (<CODE class="_ca0qyh40 _u5f3m5ip _n3tdyh40 _19bvm5ip _2rkofajl _11c819w5 _1reo1wug _18m91wug _1dqoglyw _1e0c1nu9 _bfhk187e _16d9qvcn _syazi7uo _vwz41kw7 _1i4q1hna _o5721jtm" data-renderer-mark="true">lookup.api.sinch.com/v2/</CODE>) and updated OAuth authentication.</P> </LI> <LI> <P data-renderer-start-pos="1485"><STRONG data-renderer-mark="true">Test in parallel</STRONG> — we recommend running the new API alongside your legacy integration to validate results before switching over.</P> </LI> </OL> <P data-renderer-start-pos="1617"><STRONG data-renderer-mark="true">Q: Is the new API backward compatible with the legacy one?</STRONG><BR />No, the new API is not backward compatible. You will need to update your endpoint,&nbsp; authentication method, and integration code. We provide full documentation and support to make this as smooth as possible.</P> <P data-renderer-start-pos="2081">&nbsp;</P> <P data-renderer-start-pos="2179"><STRONG data-renderer-mark="true">Q: What's the difference between the legacy API and the new Number Lookup API?</STRONG><BR />A detailed comparison guide is available <A href="https://community.sinch.com/t5/tkb/workflowpage/tkb-id/NumberLookupAPI/article-id/2?attachment-id=1881" target="_self">here.&nbsp;</A></P> <P data-renderer-start-pos="2179">&nbsp;</P> <P data-renderer-start-pos="2308"><STRONG data-renderer-mark="true">Q: Is MNP (Mobile Number Portability) supported in the new API?</STRONG><BR />MNP is supported in <STRONG data-renderer-mark="true">North America</STRONG>. For the rest of the world, number range intelligence provides equivalent routing-relevant data. If you require global MNP, please contact your Account Manager to discuss options.</P> <P data-renderer-start-pos="2308">&nbsp;</P> <P data-renderer-start-pos="2587"><STRONG data-renderer-mark="true">Q: Can I test the new API?</STRONG></P> <P class="isSelectedEnd"><SPAN>Yes. To get started, sign up for a Sinch Dashboard account and begin testing the new Number Lookup API. If you need assistance with onboarding, please contact your Account Manager or our <A href="https://support.sinch.com/hc/en-us" target="_self">Support</A> team.</SPAN></P> <DIV>&nbsp;</DIV> <P data-renderer-start-pos="3309"><STRONG data-renderer-mark="true">Q: Where can I find the API documentation?</STRONG></P> <UL class="ak-ul" data-indent-level="1"> <LI> <P data-renderer-start-pos="3355"><A class="_ymio1r31 _ypr0glyw _zcxs1o36 _mizu1v1w _1ah3dkaa _ra3xnqa1 _128mdkaa _1cvmnqa1 _4davt94y _4bfu1r31 _1hms8stv _ajmmnqa1 _vchhusvi _kqswh2mm _ect4ttxp _syaz13af _1a3b1r31 _4fpr8stv _5goinqa1 _f8pj13af _9oik1r31 _1bnxglyw _jf4cnqa1 _30l313af _1nrm1r31 _c2waglyw _1iohnqa1 _9h8h12zz _10531ra0 _1ien1ra0 _n0fx1ra0 _1vhv17z1" title="https://developers.sinch.com/docs/number-lookup-api-v2/api-reference" href="https://developers.sinch.com/docs/number-lookup-api-v2/api-reference" target="_blank" rel="noopener" data-testid="link-with-safety" data-is-router-link="false" data-renderer-mark="true">Number Lookup API Specification</A></P> </LI> <LI> <P data-renderer-start-pos="3390"><SPAN class="_80om1qgj _1e0c1nu9" data-testid="smart-link-draggable-inline"><SPAN data-annotation-mark="true" data-renderer-start-pos="3390" data-annotation-inline-node="true" data-card-url="https://clxgroupus.sharepoint.com/:b:/s/IQ-Marketing/EZS-7B_Z96BAidj6d5pBY7UBYhRfoq1nnN4SnqZgmpoWfA?e=nQ0Ldo" data-inline-card="true"><SPAN class="css-bjn8wh"><SPAN class="loader-wrapper"><SPAN class="hover-card-trigger-wrapper" data-testid="hover-card-trigger-wrapper"><A class="_1yt4x7n9 _2rko1ssi _v56415x0 _1e0c1nu9 _16d9qvcn _syaz13af _1rkwglyw _4cvx1w55 _19itia51 _bfhkhp5a _1a3b1r31 _4fprglyw _5goinqa1 _9oik1r31 _1bnxglyw _jf4cnqa1 _1nrm1r31 _c2waglyw _1iohnqa1 _uizt1kdv _nt751r31 _49pcglyw _1hvw1o36 _1372tlke _7ehiw5lj _1j5pglyw _1di615s3" href="https://community.sinch.com/t5/tkb/workflowpage/tkb-id/NumberLookupAPI/article-id/2?attachment-id=1880" target="_blank" rel="noopener" data-testid="inline-card-resolved-view">Sinch Number Lookup one-pager</A></SPAN></SPAN></SPAN></SPAN></SPAN><SPAN class="_80om1qgj _1e0c1nu9" data-testid="smart-link-draggable-inline"><SPAN data-annotation-mark="true" data-renderer-start-pos="3390" data-annotation-inline-node="true" data-card-url="https://clxgroupus.sharepoint.com/:b:/s/IQ-Marketing/EZS-7B_Z96BAidj6d5pBY7UBYhRfoq1nnN4SnqZgmpoWfA?e=nQ0Ldo" data-inline-card="true"><SPAN class="css-bjn8wh"><SPAN class="loader-wrapper"><SPAN class="hover-card-trigger-wrapper" data-testid="hover-card-trigger-wrapper"><SPAN class="_19itglyw _vchhusvi _r06hglyw _o5721jtm _1nmz9jpi _16d9qvcn _ca0qv77o _u5f31b66 _n3tdv77o _19bv1b66" data-testid="inline-card-icon-and-title"><SPAN class="_19itglyw _vchhusvi _r06hglyw"><BR /></SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></P> </LI> </UL> <P data-renderer-start-pos="3395"><STRONG data-renderer-mark="true">Q: Who do I contact for help?</STRONG><BR />Reach out to your Account Manager to get started. If you're unsure who your Account Manager is, please contact our Support team through the <A href="https://support.sinch.com/hc/en-us" target="_self">Support portal</A> or email <A href="mailto:support@sinch.com" target="_blank" rel="noopener">support@sinch.com.&nbsp;</A></P> Thu, 04 Jun 2026 15:35:12 GMT Charlene_Kwong 2026-06-04T15:35:12Z https://community.sinch.com/t5/Number-Lookup-API/Number-Lookup-API-Migration-Q-amp-A/ta-p/19623 <P data-renderer-start-pos="103"><STRONG data-renderer-mark="true">Q: What is changing with the Number Lookup service?</STRONG><BR />We're upgrading to the new <STRONG data-renderer-mark="true">Number Lookup API</STRONG> — built on updated data sources with improved data quality, broader coverage, and new capabilities like additional fraud signals. This replaces the legacy Number Lookup product.</P> <P data-renderer-start-pos="103">&nbsp;</P> <P data-renderer-start-pos="379"><STRONG data-renderer-mark="true">Q: Why is this change happening?</STRONG><BR />The new API delivers:</P> <UL class="ak-ul" data-indent-level="1"> <LI> <P data-renderer-start-pos="437">Improved data accuracy and compliance</P> </LI> <LI> <P data-renderer-start-pos="478">New features such as SIM swap detection, reassigned number checks, and advanced VoIP detection</P> </LI> <LI> <P data-renderer-start-pos="576">A more scalable, future-proof architecture aligned with emerging industry standards like CAMARA</P> </LI> </UL> <P data-renderer-start-pos="675"><STRONG data-renderer-mark="true">Q: When do I need to migrate?</STRONG><BR />The legacy Number Lookup product reaches <STRONG data-renderer-mark="true">end of life at the end of 2026</STRONG>. You should start your migration now to allow sufficient time to plan, integrate, test, and cut over without disruption.</P> <P data-renderer-start-pos="675">&nbsp;</P> <P data-renderer-start-pos="899"><STRONG data-renderer-mark="true">Q: Is this migration mandatory?</STRONG><BR /><STRONG data-renderer-mark="true">Yes.</STRONG> The legacy Number Lookup API will be retired at the end of 2026, and all customers must migrate to the new Number Lookup API before then. After retirement, the legacy API will no longer be available. New features and enhancements are only being developed on the new API.</P> <P data-renderer-start-pos="899">&nbsp;</P> <P data-renderer-start-pos="1208"><STRONG data-renderer-mark="true">Q: What do I need to do to migrate?</STRONG></P> <OL class="ak-ol" start="1" data-indent-level="1"> <LI> <P data-renderer-start-pos="1247"><STRONG data-renderer-mark="true">Sign an updated agreement</STRONG> — a contract amendment or new order form is required due to changes in data providers.</P> </LI> <LI> <P data-renderer-start-pos="1363"><STRONG data-renderer-mark="true">Update your integration</STRONG> — the new API uses a new endpoint (<CODE class="_ca0qyh40 _u5f3m5ip _n3tdyh40 _19bvm5ip _2rkofajl _11c819w5 _1reo1wug _18m91wug _1dqoglyw _1e0c1nu9 _bfhk187e _16d9qvcn _syazi7uo _vwz41kw7 _1i4q1hna _o5721jtm" data-renderer-mark="true">lookup.api.sinch.com/v2/</CODE>) and updated OAuth authentication.</P> </LI> <LI> <P data-renderer-start-pos="1485"><STRONG data-renderer-mark="true">Test in parallel</STRONG> — we recommend running the new API alongside your legacy integration to validate results before switching over.</P> </LI> </OL> <P data-renderer-start-pos="1617"><STRONG data-renderer-mark="true">Q: Is the new API backward compatible with the legacy one?</STRONG><BR />No, the new API is not backward compatible. You will need to update your endpoint,&nbsp; authentication method, and integration code. We provide full documentation and support to make this as smooth as possible.</P> <P data-renderer-start-pos="2081">&nbsp;</P> <P data-renderer-start-pos="2179"><STRONG data-renderer-mark="true">Q: What's the difference between the legacy API and the new Number Lookup API?</STRONG><BR />A detailed comparison guide is available <A href="https://community.sinch.com/t5/tkb/workflowpage/tkb-id/NumberLookupAPI/article-id/2?attachment-id=1881" target="_self">here.&nbsp;</A></P> <P data-renderer-start-pos="2179">&nbsp;</P> <P data-renderer-start-pos="2308"><STRONG data-renderer-mark="true">Q: Is MNP (Mobile Number Portability) supported in the new API?</STRONG><BR />MNP is supported in <STRONG data-renderer-mark="true">North America</STRONG>. For the rest of the world, number range intelligence provides equivalent routing-relevant data. If you require global MNP, please contact your Account Manager to discuss options.</P> <P data-renderer-start-pos="2308">&nbsp;</P> <P data-renderer-start-pos="2587"><STRONG data-renderer-mark="true">Q: Can I test the new API?</STRONG></P> <P class="isSelectedEnd"><SPAN>Yes. To get started, sign up for a Sinch Dashboard account and begin testing the new Number Lookup API. If you need assistance with onboarding, please contact your Account Manager or our <A href="https://support.sinch.com/hc/en-us" target="_self">Support</A> team.</SPAN></P> <DIV>&nbsp;</DIV> <P data-renderer-start-pos="3309"><STRONG data-renderer-mark="true">Q: Where can I find the API documentation?</STRONG></P> <UL class="ak-ul" data-indent-level="1"> <LI> <P data-renderer-start-pos="3355"><A class="_ymio1r31 _ypr0glyw _zcxs1o36 _mizu1v1w _1ah3dkaa _ra3xnqa1 _128mdkaa _1cvmnqa1 _4davt94y _4bfu1r31 _1hms8stv _ajmmnqa1 _vchhusvi _kqswh2mm _ect4ttxp _syaz13af _1a3b1r31 _4fpr8stv _5goinqa1 _f8pj13af _9oik1r31 _1bnxglyw _jf4cnqa1 _30l313af _1nrm1r31 _c2waglyw _1iohnqa1 _9h8h12zz _10531ra0 _1ien1ra0 _n0fx1ra0 _1vhv17z1" title="https://developers.sinch.com/docs/number-lookup-api-v2/api-reference" href="https://developers.sinch.com/docs/number-lookup-api-v2/api-reference" target="_blank" rel="noopener" data-testid="link-with-safety" data-is-router-link="false" data-renderer-mark="true">Number Lookup API Specification</A></P> </LI> <LI> <P data-renderer-start-pos="3390"><SPAN class="_80om1qgj _1e0c1nu9" data-testid="smart-link-draggable-inline"><SPAN data-annotation-mark="true" data-renderer-start-pos="3390" data-annotation-inline-node="true" data-card-url="https://clxgroupus.sharepoint.com/:b:/s/IQ-Marketing/EZS-7B_Z96BAidj6d5pBY7UBYhRfoq1nnN4SnqZgmpoWfA?e=nQ0Ldo" data-inline-card="true"><SPAN class="css-bjn8wh"><SPAN class="loader-wrapper"><SPAN class="hover-card-trigger-wrapper" data-testid="hover-card-trigger-wrapper"><A class="_1yt4x7n9 _2rko1ssi _v56415x0 _1e0c1nu9 _16d9qvcn _syaz13af _1rkwglyw _4cvx1w55 _19itia51 _bfhkhp5a _1a3b1r31 _4fprglyw _5goinqa1 _9oik1r31 _1bnxglyw _jf4cnqa1 _1nrm1r31 _c2waglyw _1iohnqa1 _uizt1kdv _nt751r31 _49pcglyw _1hvw1o36 _1372tlke _7ehiw5lj _1j5pglyw _1di615s3" href="https://community.sinch.com/t5/tkb/workflowpage/tkb-id/NumberLookupAPI/article-id/2?attachment-id=1880" target="_blank" rel="noopener" data-testid="inline-card-resolved-view">Sinch Number Lookup one-pager</A></SPAN></SPAN></SPAN></SPAN></SPAN><SPAN class="_80om1qgj _1e0c1nu9" data-testid="smart-link-draggable-inline"><SPAN data-annotation-mark="true" data-renderer-start-pos="3390" data-annotation-inline-node="true" data-card-url="https://clxgroupus.sharepoint.com/:b:/s/IQ-Marketing/EZS-7B_Z96BAidj6d5pBY7UBYhRfoq1nnN4SnqZgmpoWfA?e=nQ0Ldo" data-inline-card="true"><SPAN class="css-bjn8wh"><SPAN class="loader-wrapper"><SPAN class="hover-card-trigger-wrapper" data-testid="hover-card-trigger-wrapper"><SPAN class="_19itglyw _vchhusvi _r06hglyw _o5721jtm _1nmz9jpi _16d9qvcn _ca0qv77o _u5f31b66 _n3tdv77o _19bv1b66" data-testid="inline-card-icon-and-title"><SPAN class="_19itglyw _vchhusvi _r06hglyw"><BR /></SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></P> </LI> </UL> <P data-renderer-start-pos="3395"><STRONG data-renderer-mark="true">Q: Who do I contact for help?</STRONG><BR />Reach out to your Account Manager to get started. If you're unsure who your Account Manager is, please contact our Support team through the <A href="https://support.sinch.com/hc/en-us" target="_self">Support portal</A> or email <A href="mailto:support@sinch.com" target="_blank" rel="noopener">support@sinch.com.&nbsp;</A></P> Thu, 04 Jun 2026 15:35:12 GMT https://community.sinch.com/t5/Number-Lookup-API/Number-Lookup-API-Migration-Q-amp-A/ta-p/19623 Charlene_Kwong 2026-06-04T15:35:12Z