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American Messaging is a paging company that holds phone numbers for pagers.

American Messaging is a paging company whose pagers are carried by hospital staff, emergency services and other on-call workers. The phone numbers it holds are how a call or a message reaches one of those pagers. NANPA, which runs the North American numbering plan, lists American Messaging as the holder of 795 prefixes in 32 states and territories, less than 1% of the 198,436 prefixes it has assigned.

Name in NANPA's file
AMERICAN MESSAGING SERVICES, LLC
What it is
Paging network
Prefixes held
795 of 198,436 (less than 1%)
States and territories
32 of 56, most in Michigan, California and Ohio
Area codes
136
Pooled prefixes
None

From NANPA's central office code file of October 1, 2026. A prefix is the three digits after the area code.

You can check which carrier a number is on today, for free.

Enter the full number to see its carrier now, which may not be American Messaging if the number was ported. It is the same free check as our carrier lookup. To see whether it is a mobile, landline or VoIP line, use the line type lookup, and to see who it is listed to, the who called me lookup.

A lookup shows American Messaging when the number reaches a pager or a paging service.

Calling a paging number usually sends a message or a callback number to someone's pager rather than ringing a phone.

Numbers can also move between carriers, so a lookup reads the number's carrier today, and a number with an American Messaging prefix can show another company if it was ported.

American Messaging holds the most prefixes in Michigan: 164 of its 795.

American Messaging prefixes by state

Plus 182 prefixes in 24 more states and territories.

American Messaging holds prefixes in 136 area codes, and these are its largest.

American Messaging holds 10 prefixes in area code 213, downtown Los Angeles.

A call that shows a paging carrier like American Messaging is unusual, but the carrier alone does not make it spam.

Paging numbers are mostly used to reach pagers, not to place calls.

Caller ID can be faked, so the call may not have come from a paging service at all.

Check the full number with our free spam phone checker before you call back.

These are the questions people ask about American Messaging.

What is American Messaging Services, LLC?

American Messaging is a paging company whose pagers are carried by hospital staff, emergency services and other on-call workers. The phone numbers it holds are how a call or a message reaches one of those pagers.

Why does a phone lookup say American Messaging?

A lookup shows American Messaging when the number reaches a pager or a paging service. Calling a paging number usually sends a message or a callback number to someone's pager rather than ringing a phone. Numbers can also move between carriers, so a lookup reads the number's carrier today, and a number with an American Messaging prefix can show another company if it was ported.

Is a call from an American Messaging number spam?

Paging numbers are mostly used to reach pagers, not to place calls. Caller ID can be faked, so the call may not have come from a paging service at all. Check the full number with our free spam phone checker before you call back.

How many phone prefixes does American Messaging hold?

NANPA lists American Messaging as the holder of 795 prefixes, less than 1% of all assigned US prefixes. A prefix is the three digits after the area code and covers up to 10,000 numbers. None of these are pooled, so each one is held whole.

Which states have the most American Messaging prefixes?

Michigan (164), California (155) and Ohio (68) have the most, out of 32 states and territories.

Can I find out who owns an American Messaging number?

American Messaging does not publish who uses its numbers. Our free who called me lookup shows who a US number is listed to and the city and state on the listing, when the number has a listing.

Source: NANPA, the North American Numbering Plan Administrator: its central office code assignments, as of October 1, 2026. Company histories are from public records and each company's own descriptions.