Washington, Illinois Area Codes

Map of Washington

Local time – 1 timezone

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Eastern timezone

Prefixes – 4 codes

Prefix
Type
Location
Carrier
Assigned
Landline
Frontier North, Inc. - IL
-
(309) 444-0
Wireless
T-mobile USA, Inc.
2007/01/05
(309) 444-1
Landline
Frontier North, Inc. - IL
-
(309) 444-2
Landline
Frontier North, Inc. - IL
-
(309) 444-3
Landline
Frontier North, Inc. - IL
-
(309) 444-4
Landline
Frontier North, Inc. - IL
-
(309) 444-5
Landline
Frontier North, Inc. - IL
-
(309) 444-6
Wireless
T-mobile USA, Inc.
2004/04/28
(309) 444-7
Landline
Frontier North, Inc. - IL
-
(309) 444-8
Landline
Frontier North, Inc. - IL
-
(309) 444-9
Landline
Frontier North, Inc. - IL
-
Landline
Itv-3, LLC D/b/a I3 Broadband
2002/10/16
(309) 481-0
Landline
Itv-3, LLC D/b/a I3 Broadband
-
(309) 481-1
Landline
Mediacom Telephony of Illinois, LLC - IL
2010/01/21
(309) 481-2
Landline
Level 3 Communications, LLC - AK
2012/08/22
(309) 481-3
Landline
Mcimetro Access Transmission Services LLC
2013/05/16
(309) 481-4
Landline
Level 3 Communications, LLC - AK
2004/06/22
(309) 481-5
Landline
Comcast IP Phone, LLC
2006/07/28
(309) 481-6
Landline
Bandwidth.com CLEC, LLC - IL
2018/03/19
(309) 481-7
Landline
Centurylink Communications, LLC LA
2016/07/05
(309) 481-8
Landline
Telnyx LLC
2020/06/26
(309) 481-9
Landline
Peerless Network of Illinois, LLC - IL
2015/10/12
Wireless
T-mobile USA, Inc.
2003/01/02
(309) 501-0
Landline
Twilio International, Inc.
2021/07/20
(309) 501-1
Wireless
T-mobile USA, Inc.
2009/09/29
(309) 501-2
Landline
Onvoy, LLC
2021/03/26
(309) 501-3
Landline
Onvoy, LLC
2021/03/26
(309) 501-4
Wireless
T-mobile USA, Inc.
2015/06/24
(309) 501-5
Wireless
T-mobile USA, Inc.
2015/06/24
(309) 501-6
Wireless
T-mobile USA, Inc.
2015/06/24
(309) 501-7
Wireless
T-mobile USA, Inc.
2015/06/24
(309) 501-8
Wireless
T-mobile USA, Inc.
2015/06/24
(309) 501-9
Wireless
T-mobile USA, Inc.
2015/06/24
Landline
Frontier North, Inc. - IL
-
(309) 886-0
Landline
Onvoy, LLC
2019/06/19
(309) 886-1
Landline
Stratus Networks
2020/07/07
(309) 886-2
Landline
Frontier North, Inc. - IL
-
(309) 886-3
Landline
Comcast IP Phone, LLC
2012/02/08
(309) 886-4
Landline
Frontier North, Inc. - IL
-
(309) 886-5
Landline
Bandwidth.com CLEC, LLC - IL
2021/05/26
(309) 886-6
Landline
Onvoy, LLC
2018/07/03
(309) 886-8
Landline
Radiantiq LLC
2021/04/28
(309) 886-9
Landline
Onvoy, LLC
2019/06/19