Exchange 438-478

Montreal, QC · ISP Telecom Inc. · OCN 4727. This is a numbering allocation fact, not subscriber identity.

Area code 438 · Montreal · ISP Telecom Inc.

Thousands ranges

438-478-0xxx · 438-478-1xxx · 438-478-2xxx · 438-478-3xxx · 438-478-4xxx · 438-478-5xxx · 438-478-6xxx · 438-478-7xxx · 438-478-8xxx · 438-478-9xxx