557 phone numbers available to buy right now

Live inventory of St. Louis, MO (557) numbers, pulled directly from our carrier network and last updated August 6, 2026 at 10:02 PM UTC. There is no per-number price or markup: every number below is included with a Phone2 plan from $7/month on annual billing, with calling, SMS, a team inbox, and mobile + desktop apps. Activation is instant.

(557) 204-7719VoiceSMSFax
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(557) 204-7718VoiceSMSFax
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(557) 204-7724VoiceSMSFax
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(557) 204-7748VoiceSMSFax
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(557) 204-7739VoiceSMSFax
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(557) 204-7747VoiceSMSFax
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(557) 204-7750VoiceSMSFax
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(557) 204-7716VoiceSMSFax
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(557) 204-7717VoiceSMSFax
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(557) 204-7733VoiceSMSFax
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(557) 204-7742VoiceSMSFax
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(557) 204-7749VoiceSMSFax
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(557) 204-7745VoiceSMSFax
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(557) 204-7727VoiceSMSFax
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(557) 204-7787VoiceSMSFax
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(557) 204-7778VoiceSMSFax
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(557) 204-7764VoiceSMSFax
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(557) 204-7783VoiceSMSFax
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(557) 204-7762VoiceSMSFax
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(557) 204-7759VoiceSMSFax
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(557) 204-7769VoiceSMSFax
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(557) 204-7809VoiceSMSFax
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(557) 204-7773VoiceSMSFax
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(557) 204-7753VoiceSMSFax
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(557) 204-7791VoiceSMSFax
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(557) 204-7793VoiceSMSFax
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(557) 204-7795VoiceSMSFax
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(557) 204-7760VoiceSMSFax
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(557) 204-7774VoiceSMSFax
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(557) 204-7790VoiceSMSFax
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Search all 557 numbers About the 557 area code

How buying a 557 number works

Pick any number above, or search the full 557 inventory.
Sign up for a Phone2 plan (from $7/month on annual billing). The number is included, with no one-time purchase fee.
Start calling and texting immediately from the mobile, desktop, or web app.

Unlike number marketplaces that sell 557 numbers for $99 or more one-time, Phone2 includes the number with the phone service itself. 30-day refund guarantee, and you can port the number out any time.