Jon Custer: Email & Phone Number

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Mathematics Teacher at SHERMAN ISD|Denison, Texas, United States

Position:

Mathematics Teacher at SHERMAN ISD

Location:

Denison, Texas, United States

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Last updated: 2026-07-13

Updated: 2026-07-13

Found email addresses for Jon Custer:

Business emails:

g*****************r@gmail.com

Personal emails:

j***@gmail.com,

c***@schlotzskys.com,

c***@hotmail.com,

c***@yahoo.com

Found phones for Jon Custer:

+1-623-***-**13,

+1-480-***-**52,

+1-520-***-**71

A different Jon Custer?

Work Experience 10 years

Mathematics Teacher at SHERMAN ISD

General Manager at Schlotzsky's

Apr 2012 - Jul 2022

Jon Custer started working in 2012, then the employee has changed 1 company and 1 job. On average, Jon Custer works for one company for 10 years 3 months.

Jon holds Teacher, Postsecondary certifications.

Education

Bachelor's degree at Southeastern Oklahoma State University

Associate of Science - AS at Grayson College

Frequently Asked Questions

What is Jon Custer's email address?

SignalHire found verified email addresses for Jon Custer, both business and personal. Their business email is g*****************r@gmail.com, and personal emails include j***@gmail.com, c***@schlotzskys.com, and c***@hotmail.com.

What is Jon Custer's phone number?

SignalHire found multiple verified phone numbers for Jon Custer: +1-623-***-**13, +1-480-***-**52, and +1-520-***-**71.

How do I contact Jon Custer at SHERMAN ISD?

You can reach Jon Custer through SignalHire by unlocking their verified email and direct phone number (free signup, no credit card needed). SignalHire is the fastest route if you need their contact details immediately.

What is Jon Custer's professional background?

Jon Custer has 10 years of professional experience. They have held roles including General Manager at companies such as Schlotzsky's. Their education includes Bachelor's degree from Southeastern Oklahoma State University, and Associate of Science - AS from Grayson College.

Is Jon Custer's contact information up to date?

Yes. Jon Custer's SignalHire profile was last updated on 13 July 2026, reflecting their current position as Mathematics Teacher at SHERMAN ISD in Sherman, Texas, United States.

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