How to get a free phone number for LinkedIn
Using asms.ai for a LinkedIn verification number takes under two minutes.
Visit asms.ai and browse the available numbers, grouped by country. If you need a US LinkedIn verification number, filter by United States. For a UK number, filter by United Kingdom. Choose any number and click it to open its public inbox. Keep that tab open.
Go to LinkedIn, enter the number in the phone field, and wait. LinkedIn will send a 4 or 6 digit code via SMS. Refresh the inbox page on asms.ai. The message appears within 30 seconds in most cases. Copy the code, paste it into LinkedIn, and you are done.
If a number does not receive the code within a minute or two, try a different one or switch to a different country. LinkedIn occasionally flags numbers that have seen heavy use, which is normal for any shared service. A fresh number from the list resolves this quickly.
Is it genuinely free
Yes. The free tier at asms.ai costs nothing and requires no payment details. There is no freemium countdown, no daily cap on codes you can read, and no sign-up wall. You are not the product, and the site carries no advertising.
The service is funded by users who upgrade to a private number or use the developer API, which keeps the public numbers free. If you need exclusive access to an inbox, private numbers are available for a modest fee. For a single LinkedIn verification, the free shared numbers handle it well.
Benefits of using a temporary number for LinkedIn
Privacy from the start: LinkedIn collects and stores your phone number. It can appear in search results, be used in account recovery prompts, and surface in data breaches. A temporary number keeps your real one out of their database entirely.
No SIM swap risk: your personal mobile is tied to bank accounts, email recovery, and dozens of other services. Handing it to every platform that asks widens your attack surface. A temporary LinkedIn verification number breaks that link.
Multiple accounts, one device: recruiters managing client profiles, marketers running company pages alongside personal accounts, and developers testing LinkedIn integrations all need separate numbers per account. asms.ai makes that possible without buying extra SIM cards.
Works anywhere: because the numbers are virtual, you can verify a US LinkedIn account while abroad. Useful for travellers, remote workers, and anyone setting up an account before relocating.
Privacy and security considerations
The inboxes on asms.ai are public: anyone who knows the number can view its messages. For LinkedIn verification this is not a problem. The code LinkedIn sends is short-lived, usually valid for around 10 minutes, and single-use. By the time you have entered it, it is already consumed.
Inbox history is periodically wiped, so old messages do not accumulate. asms.ai does not log your IP against the messages you read, and no account means no profile tied to your activity on the site.
What shared numbers are not suitable for: banking, email account recovery, healthcare portals, or any service where interception would cause real harm. Use a private number for those cases.
Why people use a temporary number for LinkedIn specifically
LinkedIn is more aggressive than most platforms about phone verification. It prompts during registration, when it detects a new device or location, and whenever it suspects automated activity. Many users object on principle: LinkedIn has a documented history of surfacing phone numbers in profile search results without clear opt-out paths, and has featured in several large-scale data leaks. Handing a permanent personal number to a platform with that record is something many people want to avoid.
The practical cases are just as common. Recruiters operating multiple seat licences, marketers handling company pages and personal profiles in parallel, and job seekers maintaining distinct professional identities all need to receive a LinkedIn SMS verification code without committing a real number each time.
There is also the account recovery angle. If you have lost access to the number originally linked to your profile, a fresh temporary number lets you reassign verification to something you actually control during the recovery flow.
What else you can verify with asms.ai
The same numbers that work for LinkedIn accept codes from most other platforms. Social networks including Instagram, Facebook, Twitter/X, TikTok, and Snapchat. Professional tools such as Slack, Zoom, Microsoft Teams, and Notion. E-commerce sites like Amazon, eBay, and Etsy. Delivery and ride-sharing apps including Uber, DoorDash, and Deliveroo.
For financial and regulated apps, coverage is less reliable. Many banks and crypto exchanges require a real SIM, so test with a free number first and have a fallback ready. If a platform explicitly blocks virtual or VoIP numbers, switching to a different country often helps. The private number tier uses ranges with a stronger deliverability profile for cases where shared numbers are consistently rejected.
Number availability and countries
asms.ai maintains live numbers in the United States, United Kingdom, Germany, Georgia, Ukraine, and additional countries, with new numbers added as demand grows. US numbers have the broadest acceptance across LinkedIn and other US-headquartered platforms. UK numbers work well for European-facing accounts. German numbers suit platforms that prioritise GDPR-compliant European ranges.
Numbers that are temporarily inactive do not appear in the list, so everything shown is currently available. If a particular country is thin today, new numbers typically appear within a day or two.
Developers and automation teams who need to receive SMS at scale can use the asms.ai REST API to list numbers, poll inboxes, and filter by country. The native MCP server lets AI agents handle phone verification flows programmatically, without manual steps.
Free vs private numbers: which do you need
A private number is worth considering when you need the same number across multiple sessions, when you are building an automated verification workflow, or when you want certainty that no one else can read codes sent to your inbox.
Private numbers on asms.ai are tied to your account, visible only to you, and not shared with other users. You can cancel at any time. The API tier extends this to bulk number management, webhook delivery of incoming messages, and country filtering, suited to QA pipelines and provisioning systems that handle phone verification at scale.