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Phone Number Validator vs Satellite Passes

Same instrument, two spec sheets — measured, not claimed.

APIPhone Number ValidatorHEALTHY97Satellite PassesHEALTHY84
Uptime · 30d
Uptime · 90d100%99.02%
Uptime · 30d100%98.3%
P50 · ms342976
P95 · ms7063243
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Phone Number Validator vs Satellite Passes: common questions

Which is more reliable, Phone Number Validator or Satellite Passes?

On our scheduled checks, Phone Number Validator leads on measured uptime — Phone Number Validator at 100% versus Satellite Passes at 99.02% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, Phone Number Validator or Satellite Passes?

Phone Number Validator has the lower median latency in our checks — Phone Number Validator responds in 342 ms versus Satellite Passes at 976 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do Phone Number Validator and Satellite Passes need an API key?

Neither needs a paid key — Phone Number Validator is callable with no signup, and Satellite Passes is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Phone Number Validator and Satellite Passes from the browser?

Yes — both Phone Number Validator and Satellite Passes send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are Phone Number Validator and Satellite Passes free for commercial use?

Phone Number Validator has unclear commercial terms, and Satellite Passes has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.