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usZIPCodes.org
REST API for US ZIP, ZIP+4, and Canadian postal codes. Single unified endpoint covers address validation and standardization, radius search (centroid haversine and true spatial polygon intersection), point-to-point distance, autocomplete/typeah

Which is more popular?
Based on our record, Threads seems to be more popular. It has been mentioned 34 times since March 2021.
Website, pricing, platforms and company facts side by side.
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ZIP
ZIP Code API
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| Website | threads.com | zip-codes.com |
| Pricing | — | |
| Company | — | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of Threads yet.
API for US ZIP, ZIP+4, and Canadian postal code data. One unified endpoint set covers North America — no separate APIs by country or data type. What it does Address validation and standardization — production-grade parser with ZIP+4 append, refreshed monthly Radius search — centroid haversine and...
What each product offers, as listed by its team.

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Loudmouth Reviews Threads - the scariest movie ever made
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Recommendations tracked on public social media and blogs since March 2021.

Http://sidecar.clutch.engineering/ — Sidecar, a personal automotive assistant. Sharing dev updates at http://threads.net/@featherless. - Source: Hacker News / over 1 year ago
Threads is one the new immerging social media site that is owned and operated by Meta and introduced by a famous platform known as Instagram. This is basically a text-based conversation application in which people can share their... Source: over 3 years ago
That is a MAJOR drawback. Maybe it will come with time. But the domain is threads.net. threads.com belongs to a completely different app. That is going to be a head-scratcher for sure. Source: over 3 years ago
Tracking ZIP Code API since May 2026.
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