Sources · tracked datasets

Data Sources

ShipCalc tracks public carrier information, keeps source URLs visible and separates current data from preview or planned imports.

FedEx Delivery Area Surcharge ZIP codes: 2025 official list

Carrier: FedEx · Status: published current dataset

Effective from 2025-06-02. Last checked 2026-06-25. Last updated 2026-06-25.

25,854 ZIP records parsed from the official FedEx PDF. Jina Reader was used only to read the public PDF text because direct scripted download was blocked.

Open source

UPS Area Surcharge ZIP codes: official current workbook

Carrier: UPS · Status: published current dataset

Effective from 2025-12-21. Last checked 2026-06-25. Last updated 2026-06-25.

25,784 ZIP records parsed from the official UPS workbook across delivery area, extended delivery area and remote area tabs.

Open source

FedEx Delivery Area Surcharge ZIP codes: 2026 preview list

Carrier: FedEx · Status: tracked preview, not current

Effective from 2026-07-20. Last checked 2026-06-25. Last updated 2026-06-25.

FedEx publishes this as a preview effective July 20, 2026. It should not replace the current lookup before that date.

Open source

Carrier dimensional weight public rules

Carrier: Multiple carriers · Status: tracked rules

Effective from 2026-01-01. Last checked 2026-06-25. Last updated 2026-06-25.

FedEx, UPS and DHL divisors are tracked as calculator defaults and remain editable by the user.

Open source

USPS dimensional weight divisor change effective July 12, 2026

Carrier: USPS · Status: future rule tracked

Effective from 2026-07-12. Last checked 2026-06-25. Last updated 2026-06-25.

USPS published a future divisor change from 166 to 139 for relevant dimensional pricing. The calculator keeps the current rule active before July 12, 2026.

Open source

Data shown here is based on public carrier sources tracked by ShipCalc. Carrier rules, service commitments and negotiated rates can change. Review the data sources and confirm with the carrier before quoting.