Canada Border Services Agency

CBSA office codes in Ontario

Ontario has 66 CBSA offices and 270 active warehouse codes that report to them. 13 of the offices are land crossings into the United States.

CBSA offices
66
active warehouse codes
270
land crossings into the United States
11
warehouse codes at 0497, the most in the province
54
Map of Ontario with its CBSA offices marked
CBSA offices in Ontario, and the US ports across its land crossings. Select a dot for its code. Each office sits at its town and each US port at its city, not at a street address. Map data: Natural Earth.

Land crossings and the US port across

Most warehouse codes by office

All 66 offices in Ontario

Questions

How many CBSA offices are in Ontario?

66. Each has a four-digit office code, listed on this page.

Which CBSA office in Ontario has the most warehouses?

0497, P.I.A. Commercial Operations, with 54 active warehouse codes.

Which land crossings in Ontario lead into the United States?

Cornwall–Massena, Fort Frances–International Falls, Lansdowne–Alexandria Bay, Niagara–Buffalo, Pigeon River–Grand Portage, Prescott–Ogdensburg, Rainy River–Baudette, Sarnia–Port Huron, Sault Ste. Marie, Sombra–Algonac, Windsor–Detroit. Each pairs a CBSA office with the US port across from it.

Sources: Directory of CBSA offices and services, Canada Border Services Agency; Sub-location codes for customs sufferance warehouses, Canada Border Services Agency, version of July 27, 2026; Ports of entry, U.S. Customs and Border Protection.

Office types and map positions are ours: the type is read from the office’s name, and each office is placed at its town.

Which US port faces which CBSA office is matched by location; neither agency publishes it as a list.

Adhoc is not affiliated with CBSA or CBP.

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