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Area Code 605
Telephone Central Office
Building Pictures
The following are representative examples of telephone central office buildings in Area Code 605 (South Dakota).
Click on the pictures below for a larger version.
Aberdeen
Listing Updated:
January 2011Operating Company:
Lumen/CenturyLink/Qwest/US West/Northwestern BellCLLI:
ABRDSDCODS0Switch Type:
Nokia/Alcatel/Lucent 5ESS RemotePrefixes Served:
(605) 225-6, 229, 377, 622, 626Notes:
Source: B. Mitchell
Belle Fourche
Listing Updated:
September 2012Operating Company:
Lumen/CenturyLink/Qwest/US West/Northwestern BellCLLI:
BLFRSDCORS1Switch Type:
Nokia/Alcatel/Lucent 5ESS RemotePrefixes Served:
(307) 896
(605) 892Notes:
Also serves West Belle Fourche, WY.
Source: B. Mitchell
Blunt
Listing Updated:
November 2023Operating Company:
Venture Communications CooperativeCLLI:
(was BLNTSDXADS0)Switch Type:
Ribbon/Genband/Nortel CS 1500 RemotePrefixes Served:
(605) 962Notes:
Formerly a DMS-10, now a packet switch remote node off of Highmore, SD. Source: B. Mitchell
Bridgewater
Listing Updated:
May 2021Operating Company:
Golden West Telecom/Armour Independent Telephone CompanyCLLI:
(was BRWRSDXADS1)Switch Type:
Mitel GX5000Prefixes Served:
(605) 296, 724, 729Notes:
Now a node off of Dell Rapids, SD. Source: GSV
Bristol
Listing Updated:
November 2023Operating Company:
James Valley Cooperative Telephone CompanyCLLI:
BRSTSDXARS1Switch Type:
Nokia/Siemens EWSD RemotePrefixes Served:
(605) 492Notes:
Source: B. Mitchell
Brookings
"XC" (4th Street)
Listing Updated:
May 2021Operating Company:
Swiftel Communications/Brookings Municipal UtilitiesCLLI:
BKNGSDXC69GSwitch Type:
Ribbon/Genband/Nortel DMS-100/200Prefixes Served:
(605) 688, 692, 697Notes:
Source: GSV
Brookings
XE (Yorkshire Dr.)
Listing Updated:
May 2021Operating Company:
Swiftel Communications/Brookings Municipal UtilitiesCLLI:
BKNGSDXERS3Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(605) 696Notes:
Source: GSV
Buffalo Gap
Listing Updated:
March 2024Operating Company:
Golden West Telephone CompanyCLLI:
(none)Switch Type:
Ribbon/Genband/Nortel CS 1500 RemotePrefixes Served:
(605) 833Notes:
This office no longer has a unique CLLI code of its own. This is now a CS 1500 remote off of Hot Springs. Source: B. Mitchell
Custer
Listing Updated:
May 2017Operating Company:
Golden West Telephone Company/Vivian Telephone CompanyCLLI:
(was CSTRSDXADS1)Switch Type:
Ribbon/Genband/Nortel DMS-10 HostPrefixes Served:
(605) 673Notes:
Photo 2 source: B. Mitchell (September 2012)
Dell Rapids
Listing Updated:
May 2021Operating Company:
Golden West Telecom/Sioux Valley TelephoneCLLI:
DLRPSDXADS1Switch Type:
Ribbon/Genband/Nortel CS 1500Prefixes Served:
(605) 363, 428, 446, 942, 946Notes:
Serves multiple ratecenters. Source: GSV
Frederick
Listing Updated:
November 2023Operating Company:
James Valley Cooperative Telephone CompanyCLLI:
FRDRSDXARS3Switch Type:
Nokia/Siemens EWSD RemotePrefixes Served:
(605) 329Notes:
Source: B. Mitchell
Freeman
Listing Updated:
May 2021Operating Company:
Golden West Telecom/Vivian Telephone CompanyCLLI:
FRMNSDXADS0Switch Type:
Ribbon/Genband/Nortel CS 1500Prefixes Served:
(605) 286, 364, 369, 387, 583, 648, 925Notes:
Serves multiple ratecenters. Source: GSV
Gettysburg
Listing Updated:
May 2020Operating Company:
Venture Communications CooperativeCLLI:
(was GTBGSDXADS0)Switch Type:
Ribbon/Genband/Nortel CS1500 remotePrefixes Served:
(605) 765Notes:
This CO was originally a DMS-10, but the whole small phone company has been upgraded to a CS 1500 packet switch in the main town of Onida. Source: B. Mitchell
Hartford
Listing Updated:
May 2021Operating Company:
Golden West Telecom/Union Telephone CompanyCLLI:
HRFRSDXADS1Switch Type:
Ribbon/Genband/Nortel CS 1500Prefixes Served:
(605) 526, 528Notes:
Source: GSV
Hermosa
Listing Updated:
November 2010Operating Company:
Ft. Randall Telephone dba Mt. Rushmore TelephoneCLLI:
HRMSSDXARS1Switch Type:
Nokia/Alcatel/Lucent 5ESS RemotePrefixes Served:
(605) 255Notes:
Photo 2 is the sign showing the company ownership. Source: B. Mitchell
Highmore
Listing Updated:
January 2012Operating Company:
Venture Telephone Co-op/Sully Buttes Telephone Co-opCLLI:
HGHMSDXADS1Switch Type:
Ribbon/Genband/Nortel CS 1500Prefixes Served:
(605) 258, 264, 285, 287, 324, 392, 436, 442, 447, 598, 649, 765, 768, 852, 875, 943, 948, 962, 973Notes:
Serves multiple ratecenters. Source: B. Mitchell
Hill City
Listing Updated:
June 2010Operating Company:
Lumen/CenturyLink/Qwest/US West/Northwestern BellCLLI:
HLCYSDCORS1Switch Type:
Nokia/Alcatel/Lucent 5ESS RemotePrefixes Served:
(605) 574Notes:
Source: B. Mitchell
Hot Springs
Listing Updated:
September 2012Operating Company:
Golden West Telephone Co.CLLI:
HTSPSDXADS1
HTSPSDXADS2Switch Type:
DS1: Ribbon/Genband/Nortel CS 1500
DS2: Ribbon/Genband/Nortel CS 1500Prefixes Served:
DS1: (307) 663
(308) 453, 525
(605) 424, 459, 535, 662, 745, 833DS2: (605) 673
Notes:
Serves multiple ratecenters. Source: B. Mitchell
Huron
Listing Updated:
May 2021Operating Company:
Lumen/CenturyLink/Qwest/US West/Mountain BellCLLI:
HURNSDCODS1Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(605) 352-3Notes:
Source: GSV
Keystone
Listing Updated:
November 2010Operating Company:
Ft. Randall Telephone dba Mt. Rushmore TelephoneCLLI:
KYSTSDXADS1Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(605) 666Notes:
Source: B. Mitchell
Kimball
Listing Updated:
May 2021Operating Company:
Midstate CommunicationsCLLI:
KMBLSDXADS2Switch Type:
Metaswitch VP3510Prefixes Served:
(605) 234, 243, 245, 249, 293, 337, 726, 732, 778-9, 894Notes:
Serves multiple ratecenters. Source: GSV
Midland
Listing Updated:
January 2011Operating Company:
Golden West Telephone CooperativeCLLI:
(was MDLDSDXARS2)Switch Type:
Ribbon/Genband/Nortel DMS-10 RLCMPrefixes Served:
(605) 843Notes:
Source: B. Mitchell
Miller
Listing Updated:
January 2011Operating Company:
Lumen/CenturyLink/Qwest/US West/Northwestern BellCLLI:
MLLRSDCORS1Switch Type:
Ericsson AXE-10 RemotePrefixes Served:
(605) 853Notes:
Source: B. Mitchell
New Effington
Listing Updated:
May 2021Operating Company:
RC TechnologiesCLLI:
NWEFSDXADS1Switch Type:
Ribbon/Genband/Nortel CS 1500Prefixes Served:
(605) 398, 637, 652, 738, 932, 938
(701) 634, 736Notes:
Serves multiple ratecenters. Source: GSV
Onida
Listing Updated:
December 2024Operating Company:
Venture Communications CooperativeCLLI:
NoneSwitch Type:
NonePrefixes Served:
(605) 258, 264Notes:
Now a node off of the Highmore switch. Source: B. Mitchell
Philip
Listing Updated:
January 2011Operating Company:
Golden State Telephone CooperativeCLLI:
(was PHLPSDXADS1)Switch Type:
Ribbon/Genband/Nortel DMS-10 HostPrefixes Served:
(605) 859Notes:
Source: B. Mitchell
Pierre
"Main"
Listing Updated:
November 2023Operating Company:
Lumen/CenturyLink/Qwest/US West/Northwestern BellCLLI:
PIRRSDCODS6Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(605) 224, 773, 776, 945Notes:
Sporting the new Lumen logo. Source: B. Mitchell
Pierre
"Fort Pierre"
Listing Updated:
November 2023Operating Company:
Lumen/CenturyLink/Qwest/US West/Northwestern BellCLLI:
FTPRSDCERS1Switch Type:
Nokia/Alcatel/Lucent 5ESS RemotePrefixes Served:
(605) 223Notes:
Source: B. Mitchell (Photo 2 from January 2011)
Quinn
Listing Updated:
November 2023Operating Company:
Golden West TelecomCLLI:
(none)Switch Type:
Ribbon/Genband/Nortel CS 1500 RemotePrefixes Served:
(605) 386Notes:
A packet switch node off of Wall, SD. Source: B. Mitchell
Rapid City
"Main"
Listing Updated:
August 2010Operating Company:
Lumen/CenturyLink/Qwest/US West/Northwestern BellCLLI:
RPCYSDCODS1Switch Type:
Nokia/Alcatel/Lucent 5ESS Host & TandemPrefixes Served:
(605) 341-3, 348, 355, 388, 394, 399, 727, 737, 877Notes:
Photos 2 and 3 are of the microwave tower that had a torn cover at the time of the photo (since repaired).
Rapid City
"Blackhawk"
Listing Updated:
November 2023Operating Company:
Lumen/CenturyLink/Qwest/US West/Northwestern BellCLLI:
BLHKSDCERS1Switch Type:
Nokia/Alcatel/Lucent 5ESS RemotePrefixes Served:
(605) 786-7Notes:
Photo 2 from July 2020/ Source: B. Mitchell
Rapid City
"Rapid Valley"
Listing Updated:
May 2021Operating Company:
Lumen/CenturyLink/Qwest/US West/Northwestern BellCLLI:
RPVYSDCORS1Switch Type:
Nokia/Alcatel/Lucent 5ESS RemotePrefixes Served:
(605) 393Notes:
Source: GSV
Redfield
Listing Updated:
May 2021Operating Company:
Lumen/CenturyLink/Qwest/US West/Northwestern BellCLLI:
RDFDSDCORS1Switch Type:
Nokia/Alcatel/Lucent 5ESS RemotePrefixes Served:
(605) 472Notes:
Source: GSV
Salem
Listing Updated:
May 2021Operating Company:
TrioTel CommunicationsCLLI:
SALMSDXADS2Switch Type:
CopperCom CSX 2100 Media GatewayPrefixes Served:
(605) 239, 246-7, 425, 449, 485, 523, 825Notes:
Serves multiple ratecenters. Source: GSV
Seneca
Listing Updated:
December 2024Operating Company:
Venture Communications CooperativeCLLI:
NoneSwitch Type:
NonePrefixes Served:
(605) 436Notes:
Now a node off of the Highmore switch. Source: B. Mitchell
Sioux Falls
"Main"
Listing Updated:
August 2010Operating Company:
Lumen/CenturyLink/Qwest/US West/Northwestern BellCLLI:
DS0: SXFLSDCODS0
DS1: SXFLSDCODS1
DS2: SXFLSDCODS2Switch Type:
DS0: Ericsson AXE10 (host only)
DS1: Nokia/Alcatel/Lucent 5ESS (host/tandem)
DS2: Nokia/Alcatel/Lucent 5ESS (local end office)Prefixes Served:
DS2: (605) 312, 322, 320, 330-6, 338-9, 357, 367, 373, 575, 731, 782, 977-8, 988Notes:
This particular office has three switches. DS0 is an Ericsson AXE10 host/tandem but does not serve any local prefixes. DS1 is a 5ESS host/tandem and it does not serve any local prefixes. The DS2 is also a 5ESS but this is a local end office.
Sioux Falls
"Southeast"
Listing Updated:
August 2011Operating Company:
Lumen/CenturyLink/Qwest/US West/Mountain BellCLLI:
SXFLSDSERS1Switch Type:
Nokia/Alcatel/Lucent 5ESS RemotePrefixes Served:
(605) 371Notes:
Source: GSV
Sioux Falls
"Southwest"
Listing Updated:
May 2021Operating Company:
Lumen/CenturyLink/Qwest/US West/Mountain BellCLLI:
SXFLSDSWDS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(605) 323, 361-2Notes:
Source: GSV
Spearfish
"Main"
Listing Updated:
January 2012Operating Company:
Lumen/CenturyLink/Qwest/US West/Northwestern BellCLLI:
SPRFSDCORS1Switch Type:
Nokia/Alcatel/Lucent 5ESS RemotePrefixes Served:
(307) 643
(605) 642, 644Notes:
Also serves West Spearfish, WY.
Source: B. Mitchell
Spearfish
"Deadwood"
Listing Updated:
June 2020Operating Company:
Lumen/CenturyLink/Qwest/US West/Northwestern BellCLLI:
DDWDSDCORS1Switch Type:
Nokia/Alcatel/Lucent 5ESS RemotePrefixes Served:
(605) 578Notes:
Source: B. Mitchell. Photo 2 by the CO Building webmaster in May 2017.
Spearfish
"Lead"
Listing Updated:
September 2012Operating Company:
Lumen/CenturyLink/Qwest/US West/Northwestern BellCLLI:
LEADSDCORS1Switch Type:
Nokia/Alcatel/Lucent 5ESS RemotePrefixes Served:
(605) 584Notes:
Source: B. Mitchell
Spearfish
"Whitewood"
Listing Updated:
November 2011Operating Company:
Lumen/CenturyLink/Qwest/US West/Northwestern BellCLLI:
WHWDSDCORS1Switch Type:
Nokia/Alcatel/Lucent 5ESS RemotePrefixes Served:
(605) 269Notes:
Source: B. Mitchell
Sturgis
Listing Updated:
May 2017Operating Company:
Lumen/CenturyLink/Qwest/US West/Northwestern BellCLLI:
STRGSDCORS1Switch Type:
Nokia/Alcatel/Lucent 5ESS RemotePrefixes Served:
(605) 347, 423Notes:
Vermillion
Listing Updated:
May 2021Operating Company:
Lumen/CenturyLink/Qwest/US West/Mountain BellCLLI:
VRMLSDCODS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(605) 624, 638, 677Notes:
Source: GSV
Wall
Listing Updated:
May 2021Operating Company:
Golden West TelecommunicationsCLLI:
WALLSDXADS1Switch Type:
Ribbon/Genband/Nortel CS 1500Prefixes Served:
(605) 279, 386, 457, 798, 993Notes:
Serves multiple rateceners. Source: GSV
Watertown
Listing Updated:
May 2021Operating Company:
Lumen/CenturyLink/Qwest/US West/Mountain BellCLLI:
WTTWSDCODS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(605) 882, 884, 886Notes:
Source: GSV
Wicksville
Listing Updated:
November 2023Operating Company:
Golden West TelecomCLLI:
(none)Switch Type:
Ribbon/Genband/Nortel CS 1500 RemotePrefixes Served:
(605) 798Notes:
A packet switch remote node off of Wall, SD. Source: B. Mitchell
Winner
Listing Updated:
May 2021Operating Company:
Golden West Telecom/Vivian Telephone CompanyCLLI:
WNNRSDXADS1Switch Type:
Ribbon/Genband/Nortel CS 1500Prefixes Served:
(402) 653, 774, 974
(605) 473, 557, 654, 669, 683, 747, 775, 835, 842, 856, 879Notes:
Serves multiple ratecenters. Source: GSV
Yankton
Listing Updated:
May 2021Operating Company:
Lumen/CenturyLink/Qwest/US West/Mountain BellCLLI:
YNTNSDCODS1Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(402) 667
(605) 655, 665, 668Notes:
Source: GSV
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Pictures |