Home / Area 203 / Prefix 503

(203) 503 Phone Number Directory

Browse phone numbers under this exchange in New Haven, Connecticut. See carrier details, recent activity, and community feedback.

Enter last 4 digit numbers ex:203-503-XXXX

City: New Haven
County: New Haven
Carrier: Southern New England Telephone Co.
Line Type: Landline

Phone Numbers in This Prefix

These listings represent sample numbers in this exchange. Click any number to view detailed reports and community feedback. Showing 1–18 of 196 listings for this prefix.

Low activity Landline

(203) 503-6938

New Haven, Connecticut

  • Carrier: Southern New England Telephone Co.
  • Exchange: 203-503
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Low activity Landline

(203) 503-6958

New Haven, Connecticut

  • Carrier: Southern New England Telephone Co.
  • Exchange: 203-503
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Low activity Landline

(203) 503-6978

New Haven, Connecticut

  • Carrier: Southern New England Telephone Co.
  • Exchange: 203-503
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Low activity Landline

(203) 503-6998

New Haven, Connecticut

  • Carrier: Southern New England Telephone Co.
  • Exchange: 203-503
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Low activity Landline

(203) 503-7018

New Haven, Connecticut

  • Carrier: Southern New England Telephone Co.
  • Exchange: 203-503
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Low activity Landline

(203) 503-7038

New Haven, Connecticut

  • Carrier: Southern New England Telephone Co.
  • Exchange: 203-503
View listing
Low activity Landline

(203) 503-7058

New Haven, Connecticut

  • Carrier: Southern New England Telephone Co.
  • Exchange: 203-503
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Low activity Landline

(203) 503-7078

New Haven, Connecticut

  • Carrier: Southern New England Telephone Co.
  • Exchange: 203-503
View listing
Low activity Landline

(203) 503-7098

New Haven, Connecticut

  • Carrier: Southern New England Telephone Co.
  • Exchange: 203-503
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Low activity Landline

(203) 503-7118

New Haven, Connecticut

  • Carrier: Southern New England Telephone Co.
  • Exchange: 203-503
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Low activity Landline

(203) 503-7138

New Haven, Connecticut

  • Carrier: Southern New England Telephone Co.
  • Exchange: 203-503
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Low activity Landline

(203) 503-7158

New Haven, Connecticut

  • Carrier: Southern New England Telephone Co.
  • Exchange: 203-503
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Low activity Landline

(203) 503-7178

New Haven, Connecticut

  • Carrier: Southern New England Telephone Co.
  • Exchange: 203-503
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Low activity Landline

(203) 503-7198

New Haven, Connecticut

  • Carrier: Southern New England Telephone Co.
  • Exchange: 203-503
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Low activity Landline

(203) 503-7218

New Haven, Connecticut

  • Carrier: Southern New England Telephone Co.
  • Exchange: 203-503
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Low activity Landline

(203) 503-7238

New Haven, Connecticut

  • Carrier: Southern New England Telephone Co.
  • Exchange: 203-503
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Low activity Landline

(203) 503-7258

New Haven, Connecticut

  • Carrier: Southern New England Telephone Co.
  • Exchange: 203-503
View listing
Low activity Landline

(203) 503-7278

New Haven, Connecticut

  • Carrier: Southern New England Telephone Co.
  • Exchange: 203-503
View listing