Free Phone Number Carrier Lookup
Check any phone number's country and line-type hints instantly — and unlock the live carrier name and ported status through MCM's Lookup API. Honest about what's free vs. paid.
Free checks run on your device — country, format and line-type hints only. For live carrier data (including ported numbers) use MCM's Lookup API.
What a carrier lookup returns
Carrier / operator
The current network the number is on (Verizon, AT&T, Vodafone, Airtel…). API.
Line type
Mobile, landline, VoIP or toll-free — hints in the free tool, precise via API.
Ported status
Whether the number moved from its original carrier — needs live telecom data (API).
Country & region
Country code and country name — free in the widget above.
Active status
Whether the number is reachable right now (API).
How to look up a carrier in 3 steps
Enter the number
Type the full number, including the country code.
Look up
The free tool parses format and country instantly, and flags what the paid API adds.
Upgrade for carrier
For the actual operator name and ported flag, plug into MCM's Lookup API.
Why look up the carrier
Route messages correctly
Know whether to send SMS or MMS and to which network.
Cut delivery costs
Avoid sending to invalid or wrong-type numbers.
Detect VoIP / ported
Signals often correlated with fraud or throwaway numbers.
Improve call routing
Accurate network data means cleaner call termination.
How it works
Carrier lookup analyzes the number and — for the paid API tier — retrieves details from live telecom (HLR / numbering) databases, returning the current operator even if the number has been ported. That distinction matters: a number's original area code no longer tells you its real carrier, but a live lookup does.
The widget above runs entirely in your browser and never sees the number. The Lookup API returns the live carrier name, ported flag, and active-line status — hooking into HLR data at the source.
Who uses it
SMS / A2P senders
Route by carrier and avoid failed sends.
Sales teams
Confirm mobile vs. landline before texting.
Fraud prevention
Flag high-risk VoIP or freshly-ported numbers.
Telecom / VoIP ops
Optimize call routing at scale.
Accuracy & good-to-know
Looking up carriers at volume? Use the Lookup API.
Single format checks are free. For real-time carrier lookup across thousands of numbers — or built into your messaging and routing stack — MCM's HLR / Lookup API delivers it programmatically with live carrier and ported data.
Carrier lookup — frequently asked questions.
Is the carrier lookup free?expand_more
Yes — single format checks are free with no signup. Live carrier name, ported and active-line status are on the paid Lookup API.
Can it detect ported numbers?expand_more
The paid Lookup API reads live telecom data, so it returns the number's current carrier even after porting. The free widget doesn't have that data.
Can it tell mobile from landline or VoIP?expand_more
The free tool shows hints where the number reveals it (NANP special ranges, UK 07, etc.). The Lookup API gives a precise answer for every country.
Does it work internationally?expand_more
Yes. Enter the number with its country code to check numbers worldwide.
Why does carrier matter for SMS?expand_more
Delivery and formatting depend on the destination network — knowing the carrier prevents failed or mis-routed messages.
Live carrier data inside your product.
MCM's Lookup API returns carrier, line type, ported flag, and active-line status — same result, plugged into your SMS platform, CRM or call router.