The Best Telephone Extension Cord
We looked at the top 10 Telephone Extension Cords and dug through the reviews from 4 of the most popular review sites including and more. The result is a ranking of the best Telephone Extension Cords.
Why Trust The DWYM Score?
DWYM is focused on helping you make the best purchasing decision. Our team of experts spends hundreds of hours analyzing, testing, and researching products so you don't have to.Learn more.
Our Picks For The Top Telephone Extension Cords
- The Best Telephone Extension Cord
- 1. Uvital Telephone Landline Extension Cable Cord, 33-FT
- 2. iMBAPrice Telephone Extension Cord, 50-FT
- 3. Bistras Telephone Extension Cord, 25-FT
- 4. Comm Cable Telephone Extension Cord, 15-FT
- 5. Trisonic Telephone Extension Cord Cable, 50-FT
- 6. Power Gear Modular Jack Telephone Line Cord, 15-FT
- 7. SHONCO Phone Extension Cord Cable, 20-FT
- 8. mveohos Telephone Extension Cord, 50-FT
- 9. Softalk Landline Phone Extension Cord, 15-FT
- 10. Comtrue Telephone Extension Cord, 25-FT
Quality Phone CordConnect a range of office equipment with this Uvital Telephone Landline Cable Cord.
Long RJ-11 CordThe IMBAPrice Telephone Extension Cord offers 50 feet of reach.
Weather-Resistant CordGet extra protection in damp conditions with the Bistras Telephone Extension Cord.
Versatile Office CordCustomize your workspace with the Comm Cable Telephone Extension Cord.
Why we recommend these telephone extension cords?
Products Considered
Products Analyzed
Expert Reviews Included
User Opinions Analyzed
Our experts reviewed the top 10 Telephone Extension Cords and also dug through the reviews from 4 of the most popular review sites including and more. The result is a ranking of the best of the best Telephone Extension Cords.
DWYM is your trusted roduct review source. Our team reviews thousands of product reviews from the trusted top experts and combines them into one easy-to-understand score. Learn more.
The Best Overall
Uvital Telephone Landline Extension Cable Cord, 33-FT
Our Take
This Uvital Telephone Landline Cable Cord is suitable for a range of office communications equipment. Use it to connect landline phones, fax machines, modems and more. Good insulation and braiding keeps interference low.
What other experts liked
The Best Bang For Your Buck
iMBAPrice Telephone Extension Cord, 50-FT
Our Take
Expand your office space with the IMBAPrice Telephone Extension Cord. 50 feet of length means you can even hook up phones in a different room than your connection point. Works with RJ-11 phones.
Our Telephone Extension Cord Findings
Uvital Telephone Landline Extension Cable Cord, 33-FT
What We Liked: This Uvital Telephone Landline Cable Cord is suitable for a range of office communications equipment. Use it to connect landline phones, fax machines, modems and more. Good insulation and braiding keeps interference low.
iMBAPrice Telephone Extension Cord, 50-FT
What We Liked: Expand your office space with the IMBAPrice Telephone Extension Cord. 50 feet of length means you can even hook up phones in a different room than your connection point. Works with RJ-11 phones.
Bistras Telephone Extension Cord, 25-FT
What We Liked: The Bistras Telephone Extension Cord can be used on phones, modems and more. The connectors are classic 4-conductor type, protected by a weather-resistant layer. The white rubber material is understated enough to fit into any workspace.
Comm Cable Telephone Extension Cord, 15-FT
What We Liked: Open up the possibilities of your home or office workspace with the Comm Cable Telephone Extension Cord. The relatively short length makes it perfect for pairing telephones as well as extending their reach without undue cord tangling. It comes with RJ-11 conductors on both ends.
SHONCO Phone Extension Cord Cable, 20-FT
What We Liked: The SHONCO Phone Extension Cord Cable comes with male-to-male RJ-11 connectors for any standard landline telephone. They can also be used to connect faxes, modems or similar equipment. The flame retardant PVC sheathing makes them perfect for heavy office use.
Our Telephone Extension Cord Buying Guide
Smartphones might be an ever-present weight in our pockets, but landline phones are still a fixture at the office and even in many homes. And just like any piece of technology these days, these phones are increasingly connected to other devices — and that means extra connection cords.
Just because it’s called a landline phone doesn’t mean it needs to be landlocked to the wall that has the phone jack. A good telephone extension cord can give you greater freedom to move your desk or attach that phone to modems, fax machines or other office essentials.
One good thing about landline phones: The accessories and connection cord standards for them have remained much the same for decades, while charging cables and operating systems for smartphones seem to go obsolete every five years or so. If you need an extension cable for any standard telephone, look for the flat cord and squarish connections of an RJ-11 or RJ-12 cable.
Of the two, RJ-11 is the most common, and the oldest. They can be used to connect your telephone to a phone jack in the wall, or that phone to a modem or fax.
RJ-12 cords look the same on the surface, but check the ends and you’ll see six metal contacts occupying each of the six connection points. RJ-11 cords, by contrast, have four contacts. The extra contacts in the RJ-12 cords allow for additional phone lines, so they can be used by keyed telephone systems or office-wide PBX (Public Branch Exchange) phone systems. They’ll still work in older RJ-11 slots, but RJ-11 cords will not work in phones jack designated for use with RJ-12. This type is far less common, so if you’re buying for a home phone or simple office landline, RJ-11 cords should be all you need.
DWYM Fun Fact
The oldest continuously assigned phone number in the world is also a familiar one. According to New York City’s famous Hotel Pennsylvania, their number of 212-736-5000 was assigned in the 1930’s. Back then, it was listed as PE6-5000 — or in the shorthand that inspired a hit Glenn Miller tune, “Pennsylvania 6-5000.” That number still rings the front desk today, where you can hear the song if you’re on hold.
The Telephone Extension Cord Tips and Advice
It should be easy to tell them apart, but don’t buy handset cord when you need an extension cord for your phone line. If you’re buying online, check the RJ (Registered Jack) number. Phone line that runs from your telephone to a phone jack or modem will be RJ-11 (or less commonly, RJ-12). Handset cord is the cord that connects your handset to the actual phone base, and that will be rated RJ-9 or 22. It will also be coiled in that telltale spiral, making it easy to spot in hardware store aisles.
Related Categories
About The Author
As a homeowner of seven years and a journalist for the past 20, Tod Caviness had to learn to be a handyman quick — or at least stock a garage like one. He's happy if he can log as many weekly hours on his stationary bike as he does on PS4 strategy games, but how-to sites on the internet win out over both of them.