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Area Code 574
Telephone Central Office Building Pictures

The following are representative examples of telephone central office buildings in Area Code 574 (Northern Indiana).

Click on the pictures below for a larger version.


Akron
 

Listing Updated:
August 2023

Operating Company:
Frontier/Verizon/GTE

CLLI:
AKRNINXADS0

Switch Type:
Nokia/Siemens/Stromberg-Carlson DCO

Prefixes Served:
(574) 893

Notes:
Source: GSV

 

Camden
 

Listing Updated:
October 2008

Operating Company:
TDS/Camden Telephone Company

CLLI:
CMDNINXAPS0

Switch Type:
Packet End Office (unknown type)

Prefixes Served:
(574) 686

Notes:
Source: GSV

 

Elkhart

"Main"
 

Listing Updated:
July 2019

Operating Company:
Frontier/Verizon/GTE

CLLI:
EKHTINXADS0

Switch Type:
Nokia/Lucent/Automatic Electric GTD-5 EAX

Prefixes Served:
(574) 293-6, 389, 522-3

Notes:
Source: GSV

 

Elkhart

"North"
 

Listing Updated:
May 2023

Operating Company:
Frontier/Verizon/GTE

CLLI:
EKHTINXBDS0

Switch Type:
Nokia/Lucent/Automatic Electric GTD-5 EAX

Prefixes Served:
(574) 206, 262, 264, 266

Notes:
Source: GSV

 

Goshen
 

Listing Updated:
May 2023

Operating Company:
Frontier/Verizon/GTE

CLLI:
GSHNINXADS0

Switch Type:
Nokia/Alcatel/Lucent/Automatic Electric GTD-5 EAX

Prefixes Served:
(574) 364, 533-5, 537

Notes:
Source: GSV

 

Knox
 

Listing Updated:
August 2023

Operating Company:
Brightspeed/CenturyLink/Embarq/Sprint/ United Telephone

CLLI:
KNOXINXARS0

Switch Type:
Ribbon/Genband/Nortel RSS

Prefixes Served:
(574) 772

Notes:
Source: GSV

 

Logansport
 

Listing Updated:
August 2023

Operating Company:
Frontier/Verizon/GTE

CLLI:
LGPTINXADS0

Switch Type:
Nokia/Alcatel/Lucent/Automatic Electric GTD-5 EAX

Prefixes Served:
(574) 722, 725, 732, 735, 737, 739, 753

Notes:
Source: GSV

 

Monticello
 

Listing Updated:
August 2018

Operating Company:
Brightspeed/CenturyLink/Embarq/Sprint/ United Telephone

CLLI:
MNTIINXADS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(574) 583

Notes:
Source: GSV

 

New Paris
 

Listing Updated:
July 2023

Operating Company:
NPTech/New Paris Telephone Company

CLLI:
NWPRINXADS2

Switch Type:
Metaswitch VP3500

Prefixes Served:
(574) 831-2

Notes:
Source: GSV

 

Osceola
 

Listing Updated:
May 2023

Operating Company:
at&t/SBC/Ameritech/Indiana Bell

CLLI:
OSCLIN01DS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(574) 651, 674-5, 679

Notes:
Source: GSV

 

Plymouth
 

Listing Updated:
June 2023

Operating Company:
Brightspeed/CenturyLink/Embarq/Sprint/ United Telephone

CLLI:
PLMOINXADS0

Switch Type:
Ribbon/Genband/Nortel DMS-100/200

Prefixes Served:
(574) 935-6, 941, 948

Notes:
Source: GSV

 

Rochester
 

Listing Updated:
August 2019

Operating Company:
RTC/Rochester Telephone Company

CLLI:
ROCHINXADS1

Switch Type:
Nokia/Siemens EWSD

Prefixes Served:
(574) 223-4

Notes:
Source: GSV

 

South Bend

"Main"
 

Listing Updated:
May 2023

Operating Company:
at&t/SBC/Ameritech/Indiana Bell

CLLI:
SBNDIN01DS1

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(574) 232-7, 239, 245-6, 280, 282-4, 287-9, 472, 647

Notes:
Source: GSV

 

South Bend

"Mishawaka"
 

Listing Updated:
May 2023

Operating Company:
at&t/SBC/Ameritech/Indiana Bell

CLLI:
MSHWIN02DS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(574) 252, 254-9

Notes:
Source: GSV

 

South Bend

"North"
 

Listing Updated:
June 2023

Operating Company:
at&t/SBC/Ameritech/Indiana Bell

CLLI:
SBNDIN04DS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(574) 243, 247, 271-3, 277, 335

Notes:
Source: GSV

 

South Bend

"South"
 

Listing Updated:
June 2023

Operating Company:
at&t/SBC/Ameritech/Indiana Bell

CLLI:
SBNDIN03DS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(574) 231, 291, 299

Notes:
Source: GSV

 

Warsaw
 

Listing Updated:
June 2023

Operating Company:
Brightspeed/Centurylink/Embarq/United Telephone

CLLI:
WRSWINXADS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(574) 267-9, 371-2

Notes:
Source: GSV

 

Visit other Indiana Area Codes: 219 260 317 574 765 812

Visit nearby regions: Illinois Kentucky Michigan Ohio


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Page last modified April 24, 2025
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