Phone Line Type Lookup
Is it a mobile, a landline, or VoIP? We answer from the carrier the block is allocated to — Verizon Wireless means mobile, Pacific Bell means landline — and show you the basis, not just the verdict.
# free & rate-limited · no signup · live results from the same engine as the API
Since the engine is the same one the API runs, a key does not buy you a better answer. It buys volume, bulk jobs and a signed receipt.
Have a file? Clean up to 20 numbers free, no account.
Three quick steps
Enter a number
Paste any US phone number.
We read who holds the block
The number resolves to its assigned carrier from the authoritative numbering records we host — at thousands-block precision where pooling data covers it, since well over half of all prefixes are split between carriers — and the carrier's class answers the question: wireless, incumbent wireline, VoIP operator, or paging.
Read the verdict and its basis
Mobile, Landline, VoIP or Paging — each with the allocation evidence attached. Measured on the full numbering dataset: 95% of thousands-blocks classify, 89% of prefixes; the rest say unknown rather than guessing.
VoIP block detection
Numbers in dedicated VoIP allocations are identified as such.
Carrier block data
Original assigned carrier, rate centre and OCN for the prefix.
The verdict carries its evidence
Every answer names the carrier and class it rests on — 'Mobile: block allocated to a wireless carrier (T-Mobile USA)'. Vendors who print a bare 'mobile' are reading the same allocation data and hiding the basis.
Fast results
Answered from a local copy of the plan, sub-second.
Who uses it
Spotting VoIP numbers
Dedicated VoIP allocations are a real signal for fraud screening.
Carrier and rate-centre data
Route or price by the block the number belongs to.
Compliance workflows
Wireless status drives consent rules under the TSR — which is exactly why a guessed answer is dangerous. Pair the lookup with your consent records.
When you truly need line type
A live HLR query against the network answers it authoritatively. We offer it as a clearly priced pass-through, because it is bought per call — not pretended into a free database.
FAQ
How can you say 'mobile' if the numbering plan doesn't record line type?
From the carrier. The plan does not label lines, but it does record who each block was allocated to, and a block held by Verizon Wireless is a mobile block the same way a Pacific Bell block is a landline one. We classified the full NANPA file this way — 87% of prefixes resolve, and the remainder honestly say unknown. The one thing allocation cannot see is porting, which is why every verdict carries that caveat and a pointer to live HLR.
So how do I find out if a number can receive SMS?
With a live HLR (Home Location Register) query, which asks the network itself. That is a real per-query cost from a telecom provider, so we sell it as a transparent pass-through rather than folding it into a free tool and quietly degrading the answer.
Is this line type lookup tool free?
Yes. Guests get 5 lookups a minute and 50 a day, no signup. A free account has 200 credits a month, no card, and core validations cost 1 credit each.
How accurate are the results?
The free tool runs the same engine as the API, so what you see here is what an integration returns. Where we cannot determine something we say so rather than guessing — a confident wrong answer is worse than an honest gap.
Can I use this in bulk or via API?
Yes. Paste 20 numbers with no account, or sign in and clean 100 a month on the free plan. Paid plans take longer lists, CSV jobs, webhooks and higher rate limits, from $3.16 per 1,000 core lookups.