Old Greenwich, Connecticut Area Codes

Map of Old Greenwich

Local time – 1 timezone

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Atlantic timezone

Prefixes – 12 codes

Prefix
Type
Location
Carrier
Assigned
Landline
Mcimetro Access Transmission Services LLC
2003/04/16
(203) 277-0
Landline
Mcimetro Access Transmission Services LLC
2003/04/21
(203) 277-1
Landline
Mcimetro Access Transmission Services LLC
2003/04/21
(203) 277-2
Landline
Mcimetro Access Transmission Services LLC
2003/04/21
(203) 277-3
Landline
Mcimetro Access Transmission Services LLC
2003/04/21
(203) 277-4
Landline
Mcimetro Access Transmission Services LLC
2003/04/21
(203) 277-5
Landline
Mcimetro Access Transmission Services LLC
2003/04/21
(203) 277-6
Landline
Mcimetro Access Transmission Services LLC
2003/04/21
(203) 277-7
Landline
Mcimetro Access Transmission Services LLC
2003/04/21
(203) 277-8
Landline
Mcimetro Access Transmission Services LLC
2003/04/21
(203) 277-9
Landline
Mcimetro Access Transmission Services LLC
2003/04/21
Landline
Cablevision Lightpath, Inc. - CT
-
(203) 344-0
Landline
Bandwidth.com CLEC, LLC - CT
2010/09/15
(203) 344-1
Landline
Cablevision Lightpath, Inc. - CT
-
(203) 344-2
Landline
Southern New England Telco DBA Frontier Comm of Ct
2006/11/01
(203) 344-3
Landline
Cablevision Lightpath, Inc. - CT
-
(203) 344-4
Landline
Level 3 Communications, LLC - AK
2007/07/06
(203) 344-5
Landline
Bandwidth.com CLEC, LLC - CT
2010/06/04
(203) 344-6
Landline
Cablevision Lightpath, Inc. - CT
-
(203) 344-7
Landline
Peerless Network of Connecticut, LLC - CT
2013/04/05
(203) 344-8
Landline
Peerless Network of Connecticut, LLC - CT
2012/09/28
(203) 344-9
Landline
Cablevision Lightpath, Inc. - CT
-
Landline
Mcimetro Access Transmission Services LLC
2003/10/07
(203) 369-0
Landline
Mcimetro Access Transmission Services LLC
2003/10/09
(203) 369-1
Landline
Mcimetro Access Transmission Services LLC
2003/10/09
(203) 369-2
Landline
Mcimetro Access Transmission Services LLC
2003/10/09
(203) 369-3
Landline
Mcimetro Access Transmission Services LLC
2003/12/05
(203) 369-4
Landline
Mcimetro Access Transmission Services LLC
2003/12/05
(203) 369-5
Landline
Mcimetro Access Transmission Services LLC
2003/12/05
(203) 369-6
Landline
Mcimetro Access Transmission Services LLC
2003/12/05
(203) 369-7
Landline
Mcimetro Access Transmission Services LLC
2003/12/11
(203) 369-8
Landline
Mcimetro Access Transmission Services LLC
2003/12/11
(203) 369-9
Landline
Mcimetro Access Transmission Services LLC
2003/12/11
Landline
Teleport Communications America - ID - LLC
-
(203) 409-0
Landline
Paetec Communications, LLC - CT
2005/10/28
(203) 409-1
Landline
Peerless Network of Connecticut, LLC - CT
2012/09/28
(203) 409-2
Landline
Bandwidth.com CLEC, LLC - CT
2015/04/24
(203) 409-3
Landline
Paetec Communications, LLC - CT
2001/08/13
(203) 409-4
Landline
Teleport Communications America - ID - LLC
-
(203) 409-5
Landline
Bandwidth.com CLEC, LLC - CT
2014/01/13
(203) 409-6
Landline
Conversent Communications of Connecticut, LLC
2004/05/28
(203) 409-7
Landline
Mcimetro Access Transmission Services LLC
2003/08/13
(203) 409-8
Landline
Peerless Network of Connecticut, LLC - CT
2012/09/28
(203) 409-9
Landline
Global Crossing Local Services, Inc. - KY
2001/04/17
(203) 637
Landline
Southern New England Telco DBA Frontier Comm of Ct
-
Landline
Southern New England Telco DBA Frontier Comm of Ct
-
(203) 698-0
Landline
Southern New England Telco DBA Frontier Comm of Ct
-
(203) 698-1
Landline
Southern New England Telco DBA Frontier Comm of Ct
-
(203) 698-2
Landline
Southern New England Telco DBA Frontier Comm of Ct
-
(203) 698-3
Landline
Southern New England Telco DBA Frontier Comm of Ct
-
(203) 698-4
Landline
Southern New England Telco DBA Frontier Comm of Ct
-
(203) 698-5
Landline
Level 3 Communications, LLC - AK
2012/07/02
(203) 698-6
Landline
Ctc Communications Corp. - CT
2006/11/20
(203) 698-7
Landline
Southern New England Telco DBA Frontier Comm of Ct
-
(203) 698-8
Landline
Southern New England Telco DBA Frontier Comm of Ct
-
(203) 698-9
Landline
Southern New England Telco DBA Frontier Comm of Ct
-
Landline
Mcimetro Access Transmission Services LLC
2004/07/19
(203) 827-0
Landline
Mcimetro Access Transmission Services LLC
2005/01/10
(203) 827-1
Landline
Mcimetro Access Transmission Services LLC
2005/01/10
(203) 827-2
Landline
Mcimetro Access Transmission Services LLC
2005/01/10
(203) 827-3
Landline
Mcimetro Access Transmission Services LLC
2005/01/10
(203) 827-4
Landline
Mcimetro Access Transmission Services LLC
2005/01/10
(203) 827-5
Landline
Mcimetro Access Transmission Services LLC
2005/01/10
(203) 827-6
Landline
Mcimetro Access Transmission Services LLC
2005/01/10
(203) 827-7
Landline
Mcimetro Access Transmission Services LLC
2004/07/23
(203) 827-8
Landline
Mcimetro Access Transmission Services LLC
2004/07/23
(203) 827-9
Landline
Mcimetro Access Transmission Services LLC
2004/07/23
Landline
Mcimetro Access Transmission Services LLC
2004/02/20
(203) 986-0
Landline
Mcimetro Access Transmission Services LLC
2004/07/07
(203) 986-1
Landline
Mcimetro Access Transmission Services LLC
2004/07/07
(203) 986-2
Landline
Mcimetro Access Transmission Services LLC
2004/07/07
(203) 986-3
Landline
Mcimetro Access Transmission Services LLC
2004/07/07
(203) 986-4
Landline
Mcimetro Access Transmission Services LLC
2004/07/07
(203) 986-5
Landline
Mcimetro Access Transmission Services LLC
2004/03/01
(203) 986-6
Landline
Mcimetro Access Transmission Services LLC
2004/03/01
(203) 986-7
Landline
Mcimetro Access Transmission Services LLC
2004/03/01
(203) 986-8
Landline
Mcimetro Access Transmission Services LLC
2004/03/01
(203) 986-9
Landline
Mcimetro Access Transmission Services LLC
2004/03/01
Landline
Mcimetro Access Transmission Services LLC
2005/01/31
(203) 990-0
Landline
Cablevision Lightpath, Inc. - CT
2007/10/17
(203) 990-1
Landline
Peerless Network of Connecticut, LLC - CT
2012/09/28
(203) 990-2
Landline
Centurylink Communications, LLC LA
2014/06/06
(203) 990-3
Landline
Cablevision Lightpath, Inc. - CT
2013/08/15
(203) 990-4
Landline
Peerless Network of Connecticut, LLC - CT
2012/09/28
(203) 990-5
Landline
Peerless Network of Connecticut, LLC - CT
2013/04/05
(203) 990-6
Landline
Mcimetro Access Transmission Services LLC
2007/02/13
(203) 990-7
Landline
Mcimetro Access Transmission Services LLC
2005/02/04
(203) 990-8
Landline
Mcimetro Access Transmission Services LLC
2005/02/04
(203) 990-9
Landline
Mcimetro Access Transmission Services LLC
2005/02/04
Landline
Southern New England Telco DBA Frontier Comm of Ct
2014/07/22
(475) 249-0
Landline
Southern New England Telco DBA Frontier Comm of Ct
2014/07/23
(475) 249-1
Landline
Southern New England Telco DBA Frontier Comm of Ct
2014/07/23
(475) 249-2
Landline
Southern New England Telco DBA Frontier Comm of Ct
2014/07/23
(475) 249-3
Landline
Southern New England Telco DBA Frontier Comm of Ct
2014/07/23
(475) 249-4
Landline
Southern New England Telco DBA Frontier Comm of Ct
2014/07/23
(475) 249-5
Landline
Southern New England Telco DBA Frontier Comm of Ct
2014/07/23
(475) 249-6
Landline
Southern New England Telco DBA Frontier Comm of Ct
2014/07/23
(475) 249-7
Landline
Southern New England Telco DBA Frontier Comm of Ct
2014/07/23
(475) 249-8
Landline
Southern New England Telco DBA Frontier Comm of Ct
2014/07/23
(475) 249-9
Landline
Southern New England Telco DBA Frontier Comm of Ct
2014/07/23
Landline
Onvoy, LLC - CT
-
(475) 465-0
Landline
Bandwidth.com CLEC, LLC - CT
2016/06/20
(475) 465-1
Landline
Onvoy, LLC - CT
2017/03/15
(475) 465-2
Landline
Peerless Network of Connecticut, LLC - CT
2018/11/26
(475) 465-3
Unknown
Ton80 Communications, LLC
2021/05/25
(475) 465-4
Landline
Peerless Network of Connecticut, LLC - CT
2019/02/21
(475) 465-5
Landline
Onvoy, LLC - CT
2020/06/08
(475) 465-6
Landline
Onvoy, LLC - CT
2020/06/08
(475) 465-7
Landline
Onvoy, LLC - CT
2019/02/27
(475) 465-8
Landline
Telnyx LLC
2017/03/27
(475) 465-9
Landline
Onvoy, LLC - CT
2019/02/27
Landline
Fractel, LLC
2020/07/21
(475) 946-0
Wireless
Onvoy Spectrum, LLC
2021/02/10
(475) 946-3
Landline
Fractel, LLC
2020/07/22
(475) 946-4
Landline
Onvoy, LLC - CT
2020/10/23
(475) 946-6
Landline
Onvoy, LLC - CT
2020/10/23
(475) 946-9
Landline
Twilio International, Inc.
2021/03/02