ArgentinaDatos vs Callook.info

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

Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms92437
P95 · ms7581156
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified (data from public FCC ULS records)
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

ArgentinaDatos vs Callook.info: common questions

Which is more reliable, ArgentinaDatos or Callook.info?

Both are neck-and-neck — ArgentinaDatos and Callook.info each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, ArgentinaDatos or Callook.info?

ArgentinaDatos has the lower median latency in our checks — ArgentinaDatos responds in 92 ms versus Callook.info at 437 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 ArgentinaDatos and Callook.info need an API key?

Neither needs a paid key — ArgentinaDatos is callable with no signup, and Callook.info is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call ArgentinaDatos and Callook.info from the browser?

Yes — both ArgentinaDatos and Callook.info 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 ArgentinaDatos and Callook.info free for commercial use?

ArgentinaDatos has unclear commercial terms, and Callook.info 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.