Los Altos, California Area Codes

Map of Los Altos

Local time – 1 timezone

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Mountain timezone

Prefixes – 25 codes

Prefix
Type
Location
Carrier
Assigned
Landline
Us Telepacific Corp. - CA
-
(650) 209-0
Landline
Bandwidth.com CLEC, LLC - CA
2011/03/02
(650) 209-1
Landline
Us Telepacific Corp. - CA
-
(650) 209-2
Wireless
T-mobile USA, Inc.
2015/10/29
(650) 209-3
Landline
Us Telepacific Corp. - CA
-
(650) 209-4
Landline
Level 3 Communications, LLC - AK
2005/10/28
(650) 209-5
Landline
Comcast IP Phone, LLC
2006/05/16
(650) 209-6
Landline
Level 3 Communications, LLC - AK
2007/11/21
(650) 209-7
Landline
Bandwidth.com CLEC, LLC - CA
2010/04/13
(650) 209-8
Landline
Level 3 Communications, LLC - AK
2008/11/13
(650) 209-9
Landline
Us Telepacific Corp. - CA
-
Landline
Xo California, Inc.
-
(650) 229-0
Landline
Xo California, Inc.
-
(650) 229-1
Landline
Xo California, Inc.
-
(650) 229-2
Wireless
New Cingular Wireless PCS, LLC
2014/09/29
(650) 229-3
Wireless
T-mobile USA, Inc.
2015/08/21
(650) 229-4
Wireless
T-mobile USA, Inc.
2009/05/28
(650) 229-5
Landline
Onvoy, LLC - CA
2014/09/12
(650) 229-6
Landline
Onvoy, LLC - CA
2014/09/12
(650) 229-7
Landline
Onvoy, LLC - CA
2005/05/11
(650) 229-8
Landline
Bandwidth.com CLEC, LLC - CA
2010/08/02
(650) 229-9
Wireless
T-mobile USA, Inc.
2015/08/21
Wireless
T-mobile USA, Inc.
2002/09/19
(650) 305-0
Wireless
T-mobile USA, Inc.
-
(650) 305-1
Wireless
T-mobile USA, Inc.
2005/01/28
(650) 305-2
Landline
Xo California, Inc.
2006/08/04
(650) 305-3
Landline
Onvoy, LLC - CA
2007/04/10
(650) 305-4
Landline
Pacific Centrex Services, Inc. - CA
2006/11/02
(650) 305-5
Wireless
T-mobile USA, Inc.
2015/02/09
(650) 305-6
Wireless
T-mobile USA, Inc.
2015/02/09
(650) 305-7
Landline
Level 3 Communications, LLC - AK
2008/05/09
(650) 305-8
Wireless
New Cingular Wireless PCS, LLC
2015/08/25
(650) 305-9
Wireless
T-mobile USA, Inc.
-
Landline
Teleport Communications America - ID - LLC
-
(650) 383-0
Landline
Bandwidth.com CLEC, LLC - CA
2015/01/13
(650) 383-1
Landline
Onvoy, LLC - CA
2010/02/06
(650) 383-2
Landline
Teleport Communications America - ID - LLC
2014/10/17
(650) 383-3
Landline
Onvoy, LLC - CA
2014/10/13
(650) 383-4
Landline
Bandwidth.com CLEC, LLC - CA
2015/01/13
(650) 383-5
Landline
Comcast IP Phone, LLC
-
(650) 383-6
Landline
Xo California, Inc.
2008/08/25
(650) 383-7
Landline
Bandwidth.com CLEC, LLC - CA
2010/01/27
(650) 383-8
Landline
Bandwidth.com CLEC, LLC - CA
2010/01/27
(650) 383-9
Landline
Teleport Communications America - ID - LLC
-
Landline
O1 Communications, Inc. - CA
-
(650) 397-0
Wireless
T-mobile USA, Inc.
2015/10/29
(650) 397-1
Landline
Bandwidth.com CLEC, LLC - CA
2011/04/27
(650) 397-2
Landline
Bandwidth.com CLEC, LLC - CA
2011/04/27
(650) 397-3
Landline
Level 3 Telecom of California, LP - CA
2007/06/14
(650) 397-4
Landline
Peerless Network of California, LLC - CA
2010/03/08
(650) 397-5
Landline
Comcast IP Phone, LLC
2011/09/07
(650) 397-6
Landline
Level 3 Communications, LLC - AK
2012/07/09
(650) 397-7
Landline
Onvoy, LLC - CA
2014/10/13
(650) 397-8
Landline
Bandwidth.com CLEC, LLC - CA
2012/08/03
(650) 397-9
Landline
Level 3 Communications, LLC - AK
2013/05/28
Wireless
New Cingular Wireless PCS, LLC
2018/05/08
(650) 405-0
Landline
Peerless Network of California, LLC - CA
2020/03/03
(650) 405-1
Landline
Peerless Network of California, LLC - CA
2018/11/21
(650) 405-2
Landline
Twilio International, Inc.
2020/08/07
(650) 405-3
Landline
Peerless Network of California, LLC - CA
2020/08/11
(650) 405-4
Landline
Onvoy, LLC - CA
2021/07/18
(650) 405-5
Wireless
New Cingular Wireless PCS, LLC
2019/12/13
(650) 405-6
Landline
Comcast IP Phone, LLC
2019/04/11
(650) 405-7
Landline
Onvoy, LLC - CA
2018/11/29
(650) 405-8
Landline
Onvoy, LLC - CA
2018/11/29
(650) 405-9
Wireless
New Cingular Wireless PCS, LLC
2018/05/09
Landline
Allegiance Telecom, Inc. - CA
-
(650) 469-0
Landline
Allegiance Telecom, Inc. - CA
-
(650) 469-1
Landline
Allegiance Telecom, Inc. - CA
-
(650) 469-2
Wireless
T-mobile USA, Inc.
2013/06/11
(650) 469-3
Landline
Bandwidth.com CLEC, LLC - CA
2008/12/17
(650) 469-4
Wireless
T-mobile USA, Inc.
2015/07/08
(650) 469-5
Wireless
T-mobile USA, Inc.
2015/07/08
(650) 469-6
Wireless
T-mobile USA, Inc.
2015/07/08
(650) 469-7
Landline
Allegiance Telecom, Inc. - CA
-
(650) 469-8
Landline
Onvoy, LLC - CA
2014/07/14
(650) 469-9
Landline
Allegiance Telecom, Inc. - CA
-
Landline
Mpower Communications Corp. - CA
-
(650) 471-0
Landline
Mpower Communications Corp. - CA
-
(650) 471-1
Wireless
T-mobile USA, Inc.
2015/08/21
(650) 471-2
Wireless
T-mobile USA, Inc.
2015/08/21
(650) 471-3
Wireless
T-mobile USA, Inc.
2010/08/06
(650) 471-4
Wireless
T-mobile USA, Inc.
2014/08/18
(650) 471-5
Wireless
T-mobile USA, Inc.
2008/12/18
(650) 471-6
Landline
Peerless Network of California, LLC - CA
2010/08/12
(650) 471-7
Landline
Peerless Network of California, LLC - CA
2010/08/12
(650) 471-8
Landline
Peerless Network of California, LLC - CA
2010/08/12
(650) 471-9
Wireless
T-mobile USA, Inc.
2013/11/08
Landline
Level 3 Communications, LLC - AK
-
(650) 472-0
Landline
Level 3 Communications, LLC - AK
-
(650) 472-1
Landline
Level 3 Communications, LLC - AK
-
(650) 472-2
Landline
Level 3 Communications, LLC - AK
-
(650) 472-3
Landline
Level 3 Communications, LLC - AK
-
(650) 472-4
Landline
Level 3 Communications, LLC - AK
-
(650) 472-5
Landline
Onvoy, LLC - CA
2021/07/18
(650) 472-6
Landline
Level 3 Communications, LLC - AK
-
(650) 472-7
Wireless
T-mobile USA, Inc.
2015/08/21
(650) 472-8
Landline
Level 3 Communications, LLC - AK
-
(650) 472-9
Landline
Level 3 Communications, LLC - AK
-
Wireless
New Cingular Wireless PCS, LLC
2002/01/28
(650) 492-0
Wireless
New Cingular Wireless PCS, LLC
-
(650) 492-1
Wireless
New Cingular Wireless PCS, LLC
-
(650) 492-2
Landline
Utility Telecom Group, LLC - CA
2005/10/14
(650) 492-3
Wireless
New Cingular Wireless PCS, LLC
2010/06/29
(650) 492-4
Landline
Level 3 Communications, LLC - AK
2003/12/23
(650) 492-5
Landline
Level 3 Communications, LLC - AK
2006/08/22
(650) 492-6
Landline
Level 3 Communications, LLC - AK
2010/08/12
(650) 492-7
Landline
Level 3 Communications, LLC - AK
2011/02/19
(650) 492-8
Landline
Level 3 Communications, LLC - AK
2007/08/22
(650) 492-9
Wireless
New Cingular Wireless PCS, LLC
2011/11/21
Wireless
T-mobile USA, Inc.
2001/09/21
(650) 518-0
Wireless
T-mobile USA, Inc.
-
(650) 518-1
Wireless
T-mobile USA, Inc.
-
(650) 518-2
Wireless
T-mobile USA, Inc.
-
(650) 518-3
Wireless
T-mobile USA, Inc.
-
(650) 518-4
Wireless
T-mobile USA, Inc.
-
(650) 518-5
Landline
Xo California, Inc.
2010/09/15
(650) 518-6
Wireless
New Cingular Wireless PCS, LLC
2011/08/24
(650) 518-7
Landline
Onvoy, LLC - CA
2009/11/20
(650) 518-8
Wireless
T-mobile USA, Inc.
2015/10/29
(650) 518-9
Wireless
New Cingular Wireless PCS, LLC
2012/04/02
Landline
Pacific Bell
-
(650) 559-0
Landline
Pacific Bell
-
(650) 559-1
Landline
Pacific Bell
-
(650) 559-2
Landline
Pacific Bell
-
(650) 559-3
Landline
Pacific Bell
-
(650) 559-4
Wireless
T-mobile USA, Inc.
2015/07/08
(650) 559-5
Landline
Pacific Bell
-
(650) 559-6
Wireless
T-mobile USA, Inc.
2015/10/29
(650) 559-7
Landline
Pacific Bell
-
(650) 559-8
Landline
Pacific Bell
-
(650) 559-9
Landline
Pacific Bell
-
Landline
Fractel, LLC
2020/07/10
(650) 668-0
Landline
Onvoy, LLC - CA
2021/06/25
(650) 668-1
Landline
Onvoy, LLC - CA
2021/06/25
(650) 668-2
Landline
Onvoy, LLC - CA
2021/06/25
(650) 668-3
Landline
Onvoy, LLC - CA
2021/06/25
(650) 668-4
Landline
Onvoy, LLC - CA
2021/07/18
(650) 668-5
Landline
Onvoy, LLC - CA
2021/07/18
(650) 668-6
Landline
Terra Nova Telecom Inc.
2021/04/07
(650) 668-7
Wireless
Onvoy Spectrum, LLC
2021/06/27
(650) 668-8
Landline
Fractel, LLC
2020/07/10
(650) 668-9
Landline
Peerless Network of California, LLC - CA
2021/05/04
Wireless
T-mobile USA, Inc.
2016/07/15
(650) 680-0
Landline
Local Access Services LLC - CA
2016/08/16
(650) 680-1
Landline
Peerless Network of California, LLC - CA
2016/08/24
(650) 680-2
Landline
Peerless Network of California, LLC - CA
2016/09/14
(650) 680-3
Landline
Onvoy, LLC - CA
2017/05/18
(650) 680-4
Landline
Telnyx LLC
2017/05/22
(650) 680-5
Wireless
New Cingular Wireless PCS, LLC
2018/01/10
(650) 680-6
Wireless
T-mobile USA, Inc.
2016/07/15
(650) 680-7
Wireless
T-mobile USA, Inc.
2016/07/15
(650) 680-8
Wireless
T-mobile USA, Inc.
2016/07/15
(650) 680-9
Wireless
T-mobile USA, Inc.
2016/07/15
Landline
Onvoy, LLC - CA
2016/01/29
(650) 770-0
Landline
Onvoy, LLC - CA
2016/03/25
(650) 770-1
Landline
Onvoy, LLC - CA
2016/03/25
(650) 770-2
Landline
Onvoy, LLC - CA
2016/03/25
(650) 770-3
Wireless
T-mobile USA, Inc.
2016/06/07
(650) 770-4
Wireless
T-mobile USA, Inc.
2016/06/07
(650) 770-5
Wireless
T-mobile USA, Inc.
2016/06/07
(650) 770-6
Wireless
T-mobile USA, Inc.
2016/06/07
(650) 770-7
Landline
Onvoy, LLC - CA
2016/01/29
(650) 770-8
Landline
Onvoy, LLC - CA
2016/01/29
(650) 770-9
Landline
Bandwidth.com CLEC, LLC - CA
2016/06/14
(650) 823
Wireless
New Cingular Wireless PCS, LLC
-
Landline
Onvoy, LLC - CA
-
(650) 887-0
Landline
Onvoy, LLC - CA
-
(650) 887-1
Landline
Onvoy, LLC - CA
-
(650) 887-2
Landline
Onvoy, LLC - CA
-
(650) 887-3
Landline
Onvoy, LLC - CA
-
(650) 887-4
Wireless
T-mobile USA, Inc.
2005/07/11
(650) 887-5
Landline
Onvoy, LLC - CA
2006/12/28
(650) 887-6
Landline
Level 3 Communications, LLC - AK
2012/03/14
(650) 887-7
Landline
Bandwidth.com CLEC, LLC - CA
2005/12/13
(650) 887-8
Unknown
Sonic Telecom, LLC - CA
2012/11/28
(650) 887-9
Landline
Level 3 Communications, LLC - AK
2014/02/27
Landline
O1 Communications, Inc. - CA
-
(650) 900-0
Landline
Onvoy, LLC - CA
2010/11/03
(650) 900-1
Landline
O1 Communications, Inc. - CA
-
(650) 900-2
Landline
O1 Communications, Inc. - CA
-
(650) 900-3
Landline
Onvoy, LLC - CA
2012/12/04
(650) 900-4
Landline
O1 Communications, Inc. - CA
-
(650) 900-5
Landline
Onvoy, LLC - CA
2012/12/04
(650) 900-6
Landline
Onvoy, LLC - CA
2013/11/05
(650) 900-7
Landline
Onvoy, LLC - CA
2013/11/05
(650) 900-8
Landline
Level 3 Communications, LLC - AK
2014/02/05
(650) 900-9
Landline
Onvoy, LLC - CA
2012/05/31
(650) 917
Landline
Pacific Bell
-
Landline
Mcimetro Access Transmission Services LLC
-
(650) 935-0
Wireless
T-mobile USA, Inc.
2015/10/29
(650) 935-1
Wireless
T-mobile USA, Inc.
2015/10/29
(650) 935-2
Landline
AT&T Corp.
2007/08/09
(650) 935-3
Landline
Centurylink Communications, LLC LA
2014/02/28
(650) 935-4
Landline
Bandwidth.com CLEC, LLC - CA
2014/04/29
(650) 935-5
Landline
Bandwidth.com CLEC, LLC - CA
2014/06/10
(650) 935-6
Landline
Bandwidth.com CLEC, LLC - CA
2014/06/10
(650) 935-7
Landline
Peerless Network of California, LLC - CA
2013/03/14
(650) 935-8
Landline
Peerless Network of California, LLC - CA
2013/03/14
(650) 935-9
Landline
Mcimetro Access Transmission Services LLC
-
(650) 941
Landline
Pacific Bell
-
Landline
Comcast IP Phone, LLC
-
(650) 946-0
Landline
Comcast IP Phone, LLC
-
(650) 946-1
Landline
Level 3 Communications, LLC - AK
2009/09/23
(650) 946-2
Landline
Comcast IP Phone, LLC
2013/12/16
(650) 946-3
Landline
Mcimetro Access Transmission Services LLC
2008/06/23
(650) 946-4
Landline
Comcast IP Phone, LLC
-
(650) 946-5
Landline
Comcast IP Phone, LLC
-
(650) 946-6
Wireless
New Cingular Wireless PCS, LLC
2013/11/21
(650) 946-7
Wireless
New Cingular Wireless PCS, LLC
2012/10/16
(650) 946-8
Wireless
New Cingular Wireless PCS, LLC
2012/08/01
(650) 946-9
Landline
Comcast IP Phone, LLC
-
Landline
Pacific Bell
-
(650) 947-0
Landline
Pacific Bell
-
(650) 947-1
Landline
Pacific Bell
-
(650) 947-2
Landline
Pacific Bell
-
(650) 947-3
Landline
Pacific Bell
-
(650) 947-4
Landline
Pacific Bell
-
(650) 947-5
Landline
Pacific Bell
-
(650) 947-6
Landline
Pacific Bell
-
(650) 947-7
Wireless
New Cingular Wireless PCS, LLC
2016/01/07
(650) 947-8
Landline
Pacific Bell
-
(650) 947-9
Landline
Pacific Bell
-
(650) 948
Landline
Pacific Bell
-
(650) 949
Landline
Pacific Bell
-