Live demo · 3 credits per lookup

Extended Lookup: Carrier Context

Everything in the standard lookup, plus the full identity of the carrier operating the number's block: OCN and carrier class, corporate holding company, line-type utilization codes, portability, and the wholesale-hosted flag. The per-number answer layer for suppression and routing.

Standard1 cr Extended Lookup3 cr Full Data6 cr

Carrier context · billed in credits per lookup

Test with sample phone numbers

Extended US phone numbers

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v1-get-phone-extra-detailspremium · 3 credits

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Operating carrier identity

The OCN serving the number block, its carrier class (WIRELESS, CLEC, RBOC, ILEC, IPES, PCS, WRSL), common name, and DBA.

Corporate family

The holding company behind the operator — group a "New Cingular" block and a "Cricket-era" block under AT&T Inc without guesswork.

Wholesale-hosted flag

isWholesaleHosted marks blocks operated by wholesale and reseller carriers (Onvoy, Bandwidth.com, Neutral Tandem, Peerless, Inteliquent, iBasis, Voxbeam, and WRSL OCNs) — where MVNO SIMs, VoIP apps, and second-number services concentrate.

Line-type utilization

The raw ltype and ocnCategory codes behind the resolved type (MOBILE / VOIP / FIXED_LINE / PAGER) so your rules can go deeper than the summary field.

Block geography

Rate center, wire center, switch CLLI, ZIP, FIPS, county, CBSA/MSA, coordinates, and timezone for the block.

Portability signal

Whether the block participates in local number portability — your reminder that block data describes the original assignment.

What the response contains

Every field is block-resolved from the North American numbering data — the same answer for every caller, no per-line lookups, no provider hops.

Field	What it tells you	Example
type	Resolved line type	MOBILE
carrier / ocn / ocnType	Operating carrier, its OCN, and carrier class	AT&T · 4036 · WIRELESS
ocnHolding / ocnDba	Corporate holding company and DBA	AT&T Inc
ltype / ocnCategory	Raw utilization and category codes	C · W
isWholesaleHosted	Block operated by a wholesale or reseller carrier	false
portable	Local number portability participation	Y
rateCenter / wireCenter / switchClli	Block geography and switching	LAPLACE · MANDEVILLE · MNVLLA20G07
county / cbsa / msa / latitude / longitude	Reference geography	Saint John the Baptist · 35380
olsonTz / utcOffset	Timezone for send-time decisions	America/Chicago · -06:00

Built for suppression and routing

• Block or route VOIP and landline traffic before you spend on calls
• Send wholesale-hosted mobiles to review instead of the paid-dial queue
• Group offers by corporate family with the holding company field
• Time sends with block-level timezone

Where it stops

• Block-level data cannot name the MVNO brand behind a single number — that mapping lives per-line in portability records
• Ported numbers keep their original block assignment here
• For exchange-level risk (how reseller-heavy is the surrounding exchange?), step up to Full Data

Simple pricing: 3 credits per lookup

One credit is the standard lookup price. Extended answers cost 3 credits per number — billed only on successful lookups, with bulk CSV validation through the same pipeline. Volume plans and pay-as-you-go credits on the pricing page.

View pricing

1 credit

Standard validation

Validity, line type, best-available carrier, geo — the high-volume screening tier.

Try the standard lookup

6 credits

Full Data

Everything here, plus the exchange-level carrier mix and wholesale share summary.

Try Full Data

Start validating View pricing

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