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The Best Telephone Extension Cord - 2021

Last updated on August 2, 2021

We looked at the top 12 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.

Best Telephone Extension Cord

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Our Picks For The Top Telephone Extension Cords

Show Contents
Our Take
Experts Included
Pros
Cons
  Best Overall

moeverEX White RJ11 Plug Telephone Extension Cord, 25-Foot

Don't Waste Your Money Seal of Approval

moeverEX

White RJ11 Plug Telephone Extension Cord, 25-Foot

Overall Take

Most AffordableIf you're searching for a budget-friendly telephone extension cord, this model is an excellent choice.

Experts Included
DWYM Electronics Experts plus . Along with user reviews from Amazon.
  We Also Like

True Decor Black RJ11 Plug Telephone Extension Cord, 25-Foot

True Decor

Black RJ11 Plug Telephone Extension Cord, 25-Foot

Overall Take

Reliable ModelWith a length of 25 feet, you won't have any trouble reaching this telephone extension cord from your wall jack to your phone.

Experts Included
DWYM Electronics Experts plus . Along with user reviews from Amazon.
  Longest Length

iMBAPrice Telephone Extension Cord, 50-FT

iMBAPrice

Telephone Extension Cord, 50-FT

Overall Take

Long RJ-11 CordThis telephone extension cord offers 50 feet of reach.

Experts Included
DWYM Electronics Experts plus . Along with user reviews from Amazon.
  Also Consider

Uvital Telephone Landline Extension Cable Cord, 33-FT

Uvital

Telephone Landline Cable Cord, 33-FT

Overall Take

Quality Phone CordConnect a range of office equipment with this telephone extension cord.

Experts Included
DWYM Electronics Experts plus Pokrace. Along with user reviews from Amazon.
Pros
" Single insulated wire according to the different pitch twisted pair, and with specified color combinations to identify line, reduce the mutual interference between the clues crosstalk, power consumption is small."
Don't just take for granted what one reviewer says. Along with our own experts, DWYM analyzes the top expert reviews of the leading products and generates a score you can actually trust.
19

Products Considered

We identified the majority of the telephone extension cords available to purchase.
12

Products Analyzed

We then selected the leading and most popular products for our team to review.

View All Product Rankings

4

Expert Reviews Included

In addition to our expert reviews, we also incorporate feedback and analysis of some of the most respected sources including: Whatpat, Telephone Line Cords, Top Best Review and Pokrace.

7,511

User Opinions Analyzed

We also incorporate user reviews from the leading retailers including

Our experts reviewed the top 12 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.

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Look for the DWYM seal for products that are the best in their category.

The Best Overall

moeverEX White RJ11 Plug Telephone Extension Cord, 25-Foot

User Summarized Score

9.2
2,418 user reviews

Our Take

Whether you have a new landline or you simply need to replace a frayed cord, this telephone extension cord is your best bet. The wires have pure copper insides, which allows for a better and more reliable connection. Included with the cable are 25 white adhesive clips and an inline coupler.


The Best Bang For Your Buck

iMBAPrice Telephone Extension Cord, 50-FT

User Summarized Score

9.4
445 user reviews

Our Take

Expand your office space with this 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.

Overall Product Rankings

moeverEX White RJ11 Plug Telephone Extension Cord, 25-Foot

1. moeverEX White RJ11 Plug Telephone Extension Cord, 25-Foot

Overall Score: 9.8
Reviews Included: 1

iMBAPrice Telephone Extension Cord, 50-FT

3. iMBAPrice Telephone Extension Cord, 50-FT

Overall Score: 9.5
Reviews Included: 1

Uvital Telephone Landline Extension Cable Cord, 33-FT

4. Uvital Telephone Landline Extension Cable Cord, 33-FT

Overall Score: 9.4
Reviews Included: 2

Bistras Telephone Extension Cord, 25-FT

5. Bistras Telephone Extension Cord, 25-FT

Overall Score: 9.3
Reviews Included: 1

Trisonic Telephone Extension Cord Cable, 50-FT

6. Trisonic Telephone Extension Cord Cable, 50-FT

Overall Score: 9.2
Reviews Included: 3

Power Gear Modular Jack Telephone Line Cord, 15-FT

7. Power Gear Modular Jack Telephone Line Cord, 15-FT

Overall Score: 9.2
Reviews Included: 3

SHONCO Phone Extension Cord Cable, 20-FT

8. SHONCO Phone Extension Cord Cable, 20-FT

Overall Score: 9.2
Reviews Included: 2

Comm Cable Telephone Extension Cord, 15-FT

9. Comm Cable Telephone Extension Cord, 15-FT

Overall Score: 9.2
Reviews Included: 1

mveohos Telephone Extension Cord, 50-FT

10. mveohos Telephone Extension Cord, 50-FT

Overall Score: 9.0
Reviews Included: 1

Softalk Landline Phone Extension Cord, 15-FT

11. Softalk Landline Phone Extension Cord, 15-FT

Overall Score: 9.0
Reviews Included: 1

Comtrue Telephone Extension Cord, 25-FT

12. Comtrue Telephone Extension Cord, 25-FT

Overall Score: 8.9
Reviews Included: 3

Our Telephone Extension Cord Findings


moeverEX White RJ11 Plug Telephone Extension Cord, 25-Foot

What We Liked: Whether you have a new landline or you simply need to replace a frayed cord, this telephone extension cord is your best bet. The wires have pure copper insides, which allows for a better and more reliable connection. Included with the cable are 25 white adhesive clips and an inline coupler.


True Decor Black RJ11 Plug Telephone Extension Cord, 25-Foot

What We Liked: This telephone extension cord is made from high-quality materials that are able to withstand harsh weather conditions. Users will find that cord is widely compatible and easy to install. It can be used with modems and fax machines, in addition to home landline telephones.


iMBAPrice Telephone Extension Cord, 50-FT

What We Liked: Expand your office space with this 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.


Uvital Telephone Landline Extension Cable Cord, 33-FT

What We Liked: This telephone extension 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.


Bistras Telephone Extension Cord, 25-FT

What We Liked: This 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.

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.


About The Author

Avatar
Tod Caviness 

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.