Telephone Communications (No Radiotelephone)
532 tracked issuers filing with the SEC under this industry classification.
Issuers
532
Filings
40
SIC Code
4813
Industry Overview
Telephone Communications (No Radiotelephone)
The Telephone Communications (No Radiotelephone) industry under SIC 4813 encompasses wireline and fixed-network providers delivering local and long-distance voice, VoIP, and high-capacity data services over copper and increasingly fiber infrastructure. Core offerings include residential landline and broadband bundles, enterprise voice and data circuits, PBX and unified communications, wholesale carrier backhaul, and secure connectivity for government and critical infrastructure clients. Typical customers range from households and small businesses to large corporates, public-sector agencies, and other telecom operators relying on robust, low-latency networks. Operators face heavy capital intensity, pricing pressure from over-the-top apps, cybersecurity and outage risks, and close oversight from regulators on interconnection, service quality, emergency access, and customer privacy. In 2024–2025, the sector is driven by fiber-to-the-premises rollouts, fixed-mobile convergence, cloud-based collaboration tools, and consolidation among regional carriers. Investors and industry analysts can track evolving strategies and risk disclosures by reviewing live SEC filings for SIC 4813 companies on EarningsFeed.
Source: Earnings Feed research · 11/23/2025
Latest Filings
- 6-KTIM S.A.$TIMB
TIM S.A. 6-K
Jan 9, 5:03 PM ET682.9 KB - 8-KLumen Technologies, Inc.$LUMN
Lumen Technologies, Inc. 8-K
Jan 9, 4:39 PM ET271.7 KB - 8-KUniti Group Inc.$UNIT
Uniti Group Inc. 8-K
Jan 8, 4:20 PM ET236.5 KB - 8-KSurgePays, Inc.$SURG
SurgePays, Inc. 8-K
Jan 7, 4:55 PM ET291.8 KB - 13F-HRCenturyLink Investment Management Co
CenturyLink Investment Management Co 13F-HR
Jan 7, 4:21 PM ET4.3 KB - 8-KAnterix Inc.$ATEX
Anterix Inc. 8-K
Jan 7, 7:30 AM ET142.5 KB - 6-KPERUSAHAAN PERSEROAN PERSERO PT TELEKOMUNIKASI INDONESIA TBK$TLK
PERUSAHAAN PERSEROAN PERSERO PT TELEKOMUNIKASI INDONESIA TBK 6-K
Jan 7, 7:04 AM ET65.4 KB - 8-KLumen Technologies, Inc.$LUMN
Lumen Technologies, Inc. 8-K
Jan 5, 8:53 PM ET244.1 KB - 6-KTIM S.A.$TIMB
TIM S.A. 6-K
Jan 2, 5:52 PM ET18.0 KB - 6-KTURKCELL ILETISIM HIZMETLERI A S$TKC
TURKCELL ILETISIM HIZMETLERI A S 6-K
Dec 31, 11:05 AM ET63.0 KB - 8-KGlobalTech Corp$GLTK
GlobalTech Corp 8-K
Dec 30, 7:31 PM ET133.9 KB - 6-KTURKCELL ILETISIM HIZMETLERI A S$TKC
TURKCELL ILETISIM HIZMETLERI A S 6-K
Dec 30, 3:30 PM ET39.7 KB - 6-KTELEFONICA BRASIL S.A.$VIV
TELEFONICA BRASIL S.A. 6-K
Dec 29, 4:19 PM ET38.7 KB - 6-KPLDT Inc.$PHI
PLDT Inc. 6-K
Dec 29, 6:56 AM ET253.3 KB - 6-KTIM S.A.$TIMB
TIM S.A. 6-K
Dec 29, 6:32 AM ET17.9 KB - 6-KTELECOM ARGENTINA SA$TEO
TELECOM ARGENTINA SA 6-K
Dec 23, 5:16 PM ET27.9 KB - 8-KLumen Technologies, Inc.$LUMN
Lumen Technologies, Inc. 8-K
Dec 23, 4:05 PM ET1.3 MB - 6-KPERUSAHAAN PERSEROAN PERSERO PT TELEKOMUNIKASI INDONESIA TBK$TLK
PERUSAHAAN PERSEROAN PERSERO PT TELEKOMUNIKASI INDONESIA TBK 6-K
Dec 23, 6:24 AM ET44.5 KB - 6-KTELEFONICA S A$TEF
TELEFONICA S A 6-K
Dec 22, 8:44 AM ET26.4 KB - 8-KLumen Technologies, Inc.$LUMN
Lumen Technologies, Inc. 8-K
Dec 22, 8:41 AM ET256.0 KB - 8-KFrontier Communications Parent, Inc.$FYBR
Frontier Communications Parent, Inc. 8-K
Dec 19, 4:26 PM ET173.4 KB - 8-KGlobalTech Corp$GLTK
GlobalTech Corp 8-K
Dec 18, 8:00 AM ET181.9 KB - 6-KPERUSAHAAN PERSEROAN PERSERO PT TELEKOMUNIKASI INDONESIA TBK$TLK
PERUSAHAAN PERSEROAN PERSERO PT TELEKOMUNIKASI INDONESIA TBK 6-K
Dec 18, 7:47 AM ET54.6 KB - 8-KiQSTEL Inc$IQST
iQSTEL Inc 8-K
Dec 17, 4:15 PM ET190.0 KB - 6-KTELEFONICA S A$TEF
TELEFONICA S A 6-K
Dec 17, 11:38 AM ET31.5 KB - 6-KPERUSAHAAN PERSEROAN PERSERO PT TELEKOMUNIKASI INDONESIA TBK$TLK
PERUSAHAAN PERSEROAN PERSERO PT TELEKOMUNIKASI INDONESIA TBK 6-K
Dec 17, 8:49 AM ET54.4 KB - 6-KKT CORP$KT
KT CORP 6-K
Dec 17, 7:45 AM ET21.1 KB - 6-KTIM S.A.$TIMB
TIM S.A. 6-K
Dec 16, 5:11 PM ET30.3 KB - 6-KTIM S.A.$TIMB
TIM S.A. 6-K
Dec 16, 5:09 PM ET17.9 KB - 6-KTIM S.A.$TIMB
TIM S.A. 6-K
Dec 16, 5:07 PM ET15.6 KB - 6-KTIM S.A.$TIMB
TIM S.A. 6-K
Dec 16, 5:05 PM ET28.9 KB - 6-KTELEFONICA BRASIL S.A.$VIV
TELEFONICA BRASIL S.A. 6-K
Dec 16, 4:19 PM ET35.7 KB - 6-KTELEFONICA BRASIL S.A.$VIV
TELEFONICA BRASIL S.A. 6-K
Dec 16, 4:17 PM ET35.4 KB - 6-KTELEFONICA BRASIL S.A.$VIV
TELEFONICA BRASIL S.A. 6-K
Dec 16, 4:15 PM ET38.4 KB - 6-KPERUSAHAAN PERSEROAN PERSERO PT TELEKOMUNIKASI INDONESIA TBK$TLK
PERUSAHAAN PERSEROAN PERSERO PT TELEKOMUNIKASI INDONESIA TBK 6-K
Dec 16, 10:43 AM ET223.8 KB - 6-KTELECOM ARGENTINA SA$TEO
TELECOM ARGENTINA SA 6-K
Dec 16, 9:42 AM ET28.1 KB - 8-KIDT CORP$IDT
IDT CORP 8-K
Dec 16, 9:00 AM ET215.6 KB - 8-KiQSTEL Inc$IQST
iQSTEL Inc 8-K
Dec 15, 4:06 PM ET246.5 KB - 6-KPERUSAHAAN PERSEROAN PERSERO PT TELEKOMUNIKASI INDONESIA TBK$TLK
PERUSAHAAN PERSEROAN PERSERO PT TELEKOMUNIKASI INDONESIA TBK 6-K
Dec 15, 8:56 AM ET105.7 KB - 8-KTELEPHONE & DATA SYSTEMS INC /DE/$TDS
TELEPHONE & DATA SYSTEMS INC /DE/ 8-K
Dec 12, 9:02 AM ET1.8 MB
Featured Issuers
1221ST CENTURY WIRELESS GROUP INC
CIK 0001008115
360 COMMUNICATIONS CO
CIK 0001003959
ACC CORP
CIK 0000783233
Access-Power & Co., Inc.
CIK 0001041588
ADELPHIA BUSINESS SOLUTIONS INC
CIK 0001017648
AEROTELESIS INC
CIK 0000017544
AIRGATE PCS INC
CIK 0001085302
AIRGATE PCS INC /DE/
CIK 0001086844
AirGate PCS, Inc. /Merger/
CIK 0001317606
ALAMOSA HOLDINGS INC
CIK 0001120102
ALASKA COMMUNICATIONS SYSTEMS GROUP INC
CIK 0001089511
ALASKA COMMUNICATIONS SYSTEMS HOLDINGS INC
CIK 0001089510
Classification
- SIC Code
- 4813
- Total Issuers
- 532
- Recent Filings
- 40