Smarty
Zipcodestack
PostalDataPI
Geoco.io
Melissa Data Quality
Loqate
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

ElasticRoute
Locus Dispatcher
Flightmap
Wise Systems
RouteXL
ServicePower
OptimoRoute
FleetUp is an all-in-one ELD fleet management software that makes all the ELD compliance requirements and provides the best in class HOS system with GPS tracking.

Which is more popular?
Website, pricing, platforms and company facts side by side.
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ZIP
ZIP Code API
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|---|---|---|
| Website | zip-codes.com | fleetup.com |
| Company | Startup from the United States · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.

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...
No description of FleetUp yet.
What each product offers, as listed by its team.

Possible disadvantages
An editorial look at what each product does well and who it suits.

Overall verdict
Why this product is good
Recommended for
No analysis of FleetUp yet.
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FleetUp - Did You Choose the Right ELD Provider
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Share your experience with using ZIP Code API and FleetUp. For example, how are they different and which one is better?
When comparing ZIP Code API and FleetUp, you can also consider the following products.

Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.
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ElasticRoute is a reputable multi-route planner software that allows you to save time and cost for your deliveries.
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
Compare Zipcodestack to ZIP Code API or FleetUp:

Locus Dispatcher is a best-in-class automated route planning software that comes with a reliable strategy that enables you to make the deliveries on time via having the best possible route in place.
Compare Locus Dispatcher to ZIP Code API or FleetUp:

The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
Compare PostalDataPI to ZIP Code API or FleetUp:

Flightmap lets you keep track of all your flights (past and future), and turns them into...
Compare Flightmap to ZIP Code API or FleetUp: