How Many Network Cables Are There? A Complete Count of Network Cable Types (and How Many Your Building Needs)
Search for network cable types and you will see lists of three, four, seven, or even a dozen. So how many network cables are there? The honest answer is that it depends on how you count. There are three main types of network cable media, four if you split twisted pair into shielded and unshielded, and dozens of variations once you add categories, fiber grades, jacket ratings, and specialty cables. Businesses looking for reliable network cabling services in Carson, CA can get expert guidance on selecting the right cable types for their network infrastructure.
This guide sorts out the confusion by counting network cables in each of the common ways, from the broad families down to the specific products installers actually buy. It also answers a question many business owners are really asking: how many network cables does my office need?
Table of contents
- The short answer
- Count #1: By medium (3 types)
- Count #2: By shielding (4 types)
- Count #3: By performance category (8 categories)
- Count #4: By fiber grade (7 grades)
- Count #5: By coax type
- Count #6: By job in the network
- Count #7: By fire rating
- The full picture in one table
- How many network cables does your building need?
- A bonus count: how many cables run the internet?
- Common misconceptions
- Future trends
- Key takeaways
- FAQ
The Short Answer: How Many Network Cables Are There?
| How you count | Number | Examples |
|---|---|---|
| By medium | 3 | Twisted pair, coaxial, fiber optic |
| By shielding | 4 | UTP, shielded twisted pair, coax, fiber |
| By copper category | 8 | Cat3, Cat5, Cat5e, Cat6, Cat6A, Cat7, Cat7A, Cat8 |
| By fiber grade | 7 | OM1 to OM5, OS1, OS2 |
| By job | 5+ | Patch cord, horizontal, backbone, crossover, console |
| By fire rating | 4+ copper, 2+ fiber | CMP, CMR, CM, CMX, OFNP, OFNR |
For most people, the practical answer is three main types: twisted pair, coaxial, and fiber optic. Everything else is a variation within those families.
Count #1: By Medium (3 Types)
The most common way to count network cables is by the material that carries the signal. Industry references consistently name three. The three types of cables are coaxial cable, twisted pair cable, and Fiber optic cables. Understanding the various uses of cables can help businesses determine which network cable is most suitable for a specific application.
- Twisted pair: Copper wire pairs twisted together. The standard Ethernet cable for computers, phones, Wi-Fi, and cameras.
- Coaxial: A single copper conductor surrounded by a shield. Used for broadband service entry, TV, and some video.
- Fiber optic: Glass strands that carry light. Used for backbones and long-distance links.
We cover these in detail in our guide to [the three main types of cabling](INTERNAL LINK).
Count #2: By Shielding (4 Types)
Many sources split twisted pair into two groups because shielding changes how the cable is installed and grounded. The 4 main types of network cables are coaxial, shielded twisted pair (STP), unshielded twisted pair (UTP), and fibre optic cables, each with distinct features and uses.
Within shielded twisted pair, there are several constructions. ISO/IEC 11801:2002 (Annex E) attempts to internationally standardize the various shielding designations for twisted pair (TP) cables using an explicit two-part abbreviation in the form of x/xTP. Common versions include U/UTP, F/UTP, U/FTP, and S/FTP.
Some security industry references count four types differently. There are only four standard cable types. They are individual conductor, twisted-pair, coaxial and fiber-optic cables.
Count #3: By Performance Category (8 Categories)
Twisted pair cable is also divided into performance categories. Counting the categories you are likely to encounter gives eight:
| Category | Status |
|---|---|
| Cat3 | Obsolete for data, legacy phone wiring |
| Cat5 | Obsolete |
| Cat5e | Legacy, still common |
| Cat6 | Widely installed |
| Cat6A | Preferred for new commercial work |
| Cat7 | ISO only, not TIA-recognized |
| Cat7A | ISO only, not TIA-recognized |
| Cat8 | Data centers only |
Not all of them are current. Category 5 cable was ratified in 1991 and is now considered obsolete, and Cat7 is not ANSI/TIA-recognized, making it impractical for modern RJ45-based networks.
In addition to cable type, understanding the standard size of cable can help ensure the chosen cabling meets performance and installation requirements.
Count #4: By Fiber Grade (7 Grades)
Fiber optic cable has its own grades:
- Multimode: OM1, OM2, OM3, OM4, OM5
- Single-mode: OS1, OS2
The newer grades are the ones specified today. OM4 is the common choice for in-building links, and OS2 for long runs. Industry guidance summarizes it this way: for in-building structured cabling with runs under 150 meters and high port density: OM3 minimum, OM4 preferred.
Jacket colors help tell them apart. Yellow for single-mode, aqua for laser-optimized OM3/OM4 50/125 multimode, and lime green for OM5.
Count #5: By Coax Type
Coaxial cable comes in several RG types, but only a few are common in commercial buildings:
- RG-6: Cable TV, broadband, and satellite
- RG-59: Older CCTV and analog video
- RG-11: Longer runs where lower loss is needed
- RG-58: 50-ohm cable used in some radio applications
Four popular coaxial cable types are RG6, RG58, RG59, and RG11. RG-6 has largely replaced RG-59 for most TV and broadband uses.
Count #6: By Job in the Network
Network cables can also be counted by the role they play. These are not separate cable technologies, but they are distinct products:
- Patch cords: Short, flexible cables connecting devices to wall jacks or switches to patch panels. Patch cables are stranded.
- Horizontal cable: Solid-conductor cable running through walls and ceilings from a telecom room to each outlet. Horizontal cabling connects the Telecommunications Room (TR) patch panel to the work area outlet (wall jack) on the same floor. It is the most numerous cable type in any building installation.
- Backbone cable: Usually fiber, connecting telecom rooms, floors, and buildings.
- Crossover cables: Cables wired to connect two similar devices directly. These are now rare because modern equipment supports Auto MDI-X, making crossover cables largely unnecessary in most installations today.
- Console (rollover) cables: Used to connect a laptop to the management port of network equipment for configuration.
There is also a special configuration for ceiling devices like cameras and access points, the Modular Plug Terminated Link (MPTL), which has the horizontal cable terminated using a modular plug rather than an equipment outlet.
Count #7: By Fire Rating
The same cable type can come in several jacket ratings depending on where it is installed. Under the NEC, the most common copper communications ratings are:
- CMP: Plenum (air-handling spaces)
- CMR: Riser (vertical runs between floors)
- CM/CMG: General purpose
- CMX: Limited residential use
Fiber has its own ratings, including OFNP (Optical Fiber, Nonconductive, Plenum) and OFNR (Optical Fiber, Nonconductive, Riser).
The rating matters for code compliance. A higher-rated cable can always substitute for a lower rating, but never the reverse.
The Full Picture in One Table
Put all of those counts together and a single “type” of cable can have many variations. For example, one twisted pair cable might be described as:
Cat6A (category) U/UTP (shielding) CMP (fire rating) solid 23 AWG (conductor) horizontal (job) cable.
| Family | Main variations |
|---|---|
| Twisted pair | 8 categories × several shielding types × 4 fire ratings × solid or stranded |
| Fiber optic | 7 grades × tight buffer or loose tube × plenum, riser, or outdoor jackets × various fiber counts |
| Coaxial | Several RG types × indoor, outdoor, or plenum jackets |
That is why the answer to “how many network cables are there” can range from three to hundreds of specific products.
Key point: Three families cover almost everything. The variations exist to match performance, safety, and installation needs.
How Many Network Cables Does Your Building Need?
For many business owners, the real question is not how many types exist but how many cables to install. There is no single number, but you can estimate your needs with a simple process.
Step 1: Count every device
List every device that needs a wired connection:
- Workstations and docking stations
- VoIP phones
- Printers and copiers
- Wi-Fi access points
- Security cameras
- Access control readers and panels
- Point-of-sale terminals
- Digital signage and conference room displays
- Building systems such as lighting controls and sensors
For a full list of what network cables power in a modern building, see our guide to [what network cables are used for](INTERNAL LINK).
Step 2: Apply outlet guidelines
Plan more than one connection per work area. One structured cabling guide recommends a minimum 2 per work area (TIA-568); 4 per work area in high-density environments (conference rooms, trading floors, labs). Extra outlets cost little during construction but are expensive to add later.
Step 3: Plan Wi-Fi drops separately
Access points need their own runs. TIA guidance for wireless access points recommends using a grid-based zone cabling architecture, with at least two Cat 6A cable runs to each WAP in the grid.
Step 4: Add backbone and spare capacity
Plan fiber between telecom rooms and floors, and include spare strands and spare copper runs for future growth.
Step 5: Check distances
Every copper run must fit within 90 meters of permanent cable, with a 100-meter total channel. Devices beyond that need a closer telecom room or a fiber-connected switch.
Step 6: Choose the right cable for each run
- Cat6 for standard desk and phone connections
- Cat6A for Wi-Fi access points, high-power PoE, and new construction
- Fiber for backbones and long runs
- Coax only where a carrier or video system requires it
Example planning worksheet:
| Space | Devices | Suggested drops |
|---|---|---|
| Private office | Computer, phone, printer | 2 to 4 |
| Open workstation | Computer, phone | 2 per seat |
| Conference room | Display, video bar, phone, spare | 4 or more |
| Wi-Fi access point | 1 access point | 2 (Cat6A) |
| Security camera | 1 camera | 1 |
| Access-controlled door | Reader, lock, sensors | Per manufacturer design |
If you are planning a project in Carson, Long Beach, or the greater Los Angeles area, our [Network Cabling Company Carson CA](INTERNAL LINK) and [Commercial Network Cabling Company in Carson, CA](INTERNAL LINK) pages explain how we count, design, and install drops for offices, warehouses, and retail sites.
A Bonus Count: How Many Cables Run the Internet?
Some people searching “how many network cables are there” are wondering about the cables that connect the world. Most intercontinental internet traffic travels through undersea fiber optic cables.
TeleGeography, which tracks these systems, reports that as of 2026, we track more than 600 active and planned submarine cables. Its 2026 map depicts 694 cable systems and 1,893 landings that are currently active or under construction. One analysis of that dataset found that of the 694 systems in the dataset, 603 are in service and 91 are planned or under construction.
The total length is enormous. As of early 2026, we believe there are over 1.5 million kilometers of submarine cables in service globally. Yet each cable is surprisingly small. For most of its journey across the ocean, a cable is typically as wide as a garden hose.
Key stat: Roughly 600 to 700 submarine cable systems carry the world’s intercontinental internet traffic, according to TeleGeography.
Common Misconceptions
“There are exactly three (or four) network cables.” Both are common and valid ways to group them. The real number depends on how detailed you want to be.
“Every category is still in use.” Cat3 and Cat5 are obsolete for data, and Cat7 is not recognized by TIA.
“Crossover cables are a separate type I need.” Most modern equipment adjusts automatically, so standard straight-through cables work.
“Patch cords and in-wall cable are interchangeable.” Patch cords use stranded conductors for flexibility. In-wall cable uses solid conductors for performance and durability.
“Wi-Fi means fewer cables.” Access points need cabling, often two runs each.
“One cable per desk is enough.” Most planning guidance recommends at least two per work area, plus drops for shared devices and building systems.
Future Trends
- Fewer, better categories. New commercial projects are consolidating on Cat6A for most copper runs.
- More fiber in buildings. Faster uplinks and larger facilities are pushing fiber closer to devices.
- More drops per building. Cameras, access control, lighting, and sensors increasingly connect over Ethernet.
- More MPTL links. Direct-to-device connections for ceiling devices are becoming common.
- Continued subsea growth. TeleGeography reports that the value of new submarine cables planned to enter service from 2026-2029 exceeds $16 billion.
Key Takeaways
- There are three main types of network cable: twisted pair, coaxial, and fiber optic.
- Many sources count four by splitting twisted pair into shielded and unshielded.
- Twisted pair has eight common categories, though only Cat5e, Cat6, Cat6A, and Cat8 are current TIA categories for new U.S. work.
- Fiber has seven grades, with OM4 and OS2 most common for new installations.
- Cables are also classified by job (patch, horizontal, backbone) and fire rating (CMP, CMR, CM).
- Businesses should plan at least two drops per work area plus dedicated runs for Wi-Fi, cameras, and building systems.
- Roughly 600 to 700 submarine cable systems connect the global internet.
Frequently Asked Questions
How many network cables are there?
There are three main types of network cable: twisted pair, coaxial, and fiber optic. Some sources list four by separating shielded and unshielded twisted pair, and there are dozens of variations by category, grade, and rating.
What are the 4 types of network cables?
The four commonly listed types are unshielded twisted pair (UTP), shielded twisted pair (STP), coaxial cable, and fiber optic cable.
How many Ethernet cable categories are there?
The commonly referenced categories are Cat3, Cat5, Cat5e, Cat6, Cat6A, Cat7, Cat7A, and Cat8. For new U.S. commercial work, Cat6 and Cat6A are the most common choices.
How many types of fiber optic cable are there?
Fiber comes in two main families, multimode and single-mode, with grades OM1 through OM5 for multimode and OS1 and OS2 for single-mode.
How many network drops does an office need?
It depends on the layout, but a common guideline is at least two network outlets per work area, more in conference rooms, plus separate runs for Wi-Fi access points, cameras, and other devices.
How many cables does a Wi-Fi access point need?
TIA guidance recommends at least two Cat6A cable runs to each wireless access point location.
How many submarine internet cables are there?
TeleGeography tracks more than 600 active and planned submarine cable systems, with its 2026 map showing 694 systems.
What is the most common network cable?
Unshielded twisted pair Ethernet cable with RJ45 connectors, typically Cat6 or Cat6A, is the most common network cable in business buildings.