Enter any US or Canadian number to see its area code, exchange area, carrier of record, line type, and current local time. GeoDial resolves the specific thousands block rather than the whole exchange, so pooled numbers return their own carrier. Free, no sign-up.
Not here. Subscriber names and addresses come from licensed data sets, not public records, and reselling them carries legal obligations GeoDial is not set up to meet. This tool shows the public numbering plan data instead: the area code, exchange area, carrier of record, line type, and time zone.
No. The exchange area, or rate center, is the telephone exchange a block of numbers is homed to. It is where the number was issued, not where the phone is. For a mobile number the two are often unrelated, because the number travels with the subscriber.
The carrier shown is the company the block of numbers was issued to. Local number portability lets a subscriber keep a number when switching providers, so the current carrier can differ from the carrier of record. Public numbering data does not track those transfers.
It means the block belongs to a competitive carrier. The public data records that a competitive carrier holds the block but not which technology it serves, so the number could be a wireline landline or a VoIP line. GeoDial does not guess between them.
A single exchange is often pooled among several carriers in blocks of a thousand numbers. GeoDial reads the fourth digit and resolves the specific block, so 917-200-1xxx and 917-200-2xxx return their own carriers rather than one answer for the whole exchange.
No free service can tell you that, and paid ones are often guessing from the same numbering data plus scraped listings. What the public record does establish is whether the number is assigned at all, which exchange issued it, and whether the block is wireless or wireline. An unassigned block is the strongest signal available: a call claiming to come from a number that cannot exist was spoofed.
Yes. Caller ID is supplied by the calling party, and until it is authenticated there is nothing stopping a caller from presenting a number they do not hold. STIR/SHAKEN, mandated by the FCC in the US and the CRTC in Canada, signs caller ID on IP networks and gives each call an attestation level, but it does not cover every route, it does not apply to legacy TDM segments, and full attestation only means the carrier vouches that the caller may use that number — not that the caller is who they claim to be.
Not necessarily. Presenting a number that shares the recipient's area code and prefix is a common spoofing tactic, precisely because a familiar-looking number gets answered more often. Checking the number here tells you whether that block is assigned and to which exchange, which is what distinguishes a genuinely local number from one chosen to look local.
| Question | Answer from public numbering data |
|---|---|
| Is this number even assigned? | Yes — an unassigned block cannot be in service. |
| Which exchange issued it? | Yes — the rate center the block is homed to. |
| Wireless or wireline? | Usually — competitive blocks read as landline or VoIP without distinguishing the two. |
| Which carrier holds the block? | Yes — the carrier of record, which porting can make out of date. |
| Where is the person right now? | No. Nothing in the numbering plan tracks a handset. |
| Who is the subscriber? | No. Names come from licensed data sets, not public records. |
| Was the caller ID spoofed? | Only indirectly — an unassigned or mismatched block is evidence, not proof. |
Looking a number up tells you what it is, not what to do about it. The practical steps are short:
Exchange assignments, carrier names, and rate center coordinates come from public North American Numbering Plan records published through localcallingguide.com. Time zones are derived from the rate center's coordinates. Records are cached for a day.