Updated September 30, 2026 · TariffCue Editorial Team
Frontier Communications vs OiSTER
Where Frontier Communications and OiSTER differ
| Compare | Frontier Communications ReviewSee alternativesSee alternatives |  OiSTER |
|---|---|---|
| Top download speed (Mbps) | 7,000Higher | 25 to 954 |
| Upload speed (Mbps) | 7,000Higher | 23 to 94 |
| Price from | $29.99 | DKK 18 |
| Reference plan prices | Fiber 200: $29.99/mo, 200Mbps, no contract; Fiber 500: $44.99/mo, 500Mbps, no contract; Fiber 7 Gig: $124.99/mo, 7000Mbps, no contract | Basic: 25 kr/md, pay-as-you-go, no binding; Fri tale 100 GB: 18 kr/md promo then 109 kr/md, 100GB, 1 month; Fri tale Fri data: 49 kr/md promo then 199 kr/md, unlimited, 1 month |
| Setup fee | $100 | DKK 0 |
| Exit fee terms | Early termination fee may apply with certain promos; pro-rated install fee if disconnect within first year | Mobile broadband cancellable anytime with 30 days notice; 5G Internet 6-month tie-in |
| Router | Wi-Fi 7 router included; Whole Home Wi-Fi mesh on 1 Gig and faster | Vantiva Falcon 5G loan router included, must be returned |
| Address checker | https://www.frontier.com | https://oister.dk/internet/#tjekadresse |
| Markets | US | DK |
| Price after contract | Not confirmed | DKK 279 |
| Data cap (GB) | Not confirmed | 10 to 1,000 |
| Premises covered | 8,100,000 | Not confirmed |
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Key differences
- Top download speed (Mbps) is higher at Frontier Communications: 7,000 vs 25 to 954.
- Upload speed (Mbps) is higher at Frontier Communications: 7,000 vs 23 to 94.
- Founded is lower at Frontier Communications: 1935 vs 2008.
- Technology: only Frontier Communications offers Fttp.
- Technology: only OiSTER offers 5G.
- Markets: only Frontier Communications offers US.
- Markets: only OiSTER offers DK.
Our verdict on each
Frontier Communications
Frontier Communications suits households in the US that want top tier fibre speed without a long contract, and it undercuts many rivals on entry price at $29.99. The catch is a setup fee of $100 plus a charge for leaving early on some promotional deals.
OiSTER
OiSTER is a rolling Danish MVNO that suits households wanting a month-to-month bill, sim only plans and an unlimited option at DKK 49 a month. It is a weaker choice than the cheapest listings on entry price, so buyers shopping purely on the headline figure should look elsewhere first.
Score breakdown
| Area | Frontier Communications | OiSTER |
|---|---|---|
| Cost | 8.6Entry pricing starts at $29.99, though a setup fee of $100 lifts the cost of joining. | 9.8HigherEntry at DKK 18 a month and unlimited at DKK 49, though the Fri tale plans rise on renewal after an introductory rate. |
| Offer | 9.6HigherTop download of 7,000 Mbps with a matching 7,000 Mbps figure, and a current Wi-Fi router in the box as standard. | 9.1Sim only, eSIM and wifi calling all present, plus a multi line discount, 5G technology and data allowances of 10 to 1,000 GB. |
| Trust | 10.0HigherFounded in 1935 and headquartered in US, operating under Frontier Communications Parent, Inc. in a single market, US. | 8.7A long-standing operator: Hi3G Denmark ApS in DK since 2008, selling as an MVNO rather than a network. |
Where they rank in our lists
| Ranking | Frontier Communications | OiSTER |
|---|---|---|
| Broadband providers | 32 of 124 | 35 of 124 |
| Broadband without a long contract | 12 of 46 | 14 of 46 |
Where each is licensed and available
| Country | Frontier Communications | OiSTER |
|---|---|---|
| Headquarters | United States | Denmark |
If neither fits
Odido Thuis has upload speed (mbps) at 8,000, against 7,000 for Frontier Communications and 23 to 94 for OiSTER.
Odido Thuis reviewSources behind this comparison
Frontier Communications
- highspeedinternet.com: 9 facts, checked September 30, 2026
- en.wikipedia.org: 6 facts, checked September 30, 2026
OiSTER
- oister.dk: 17 facts, checked September 30, 2026
Every fact side by side
| Fact | Frontier Communications | OiSTER |
|---|---|---|
| Technology | Fttp | 5G |
| Contract length | 1 | 1 |
| Legal entity | Frontier Communications Parent, Inc. | Hi3G Denmark ApS |
| Headquarters | United States | Denmark |
| Founded | 1935Lower | 2008 |
| Support channels | Not confirmed | Phone, Email, Chat, Help centre |
Where each stands against the rest
| Fact | Frontier Communications | OiSTER | Median |
|---|---|---|---|
| Top download speed (Mbps) | 7,000highest quarter | 25 to 954lowest quarter | 1,000 |
| Upload speed (Mbps) | 7,000highest quarter | 23 to 94lowest quarter | 900 |
| Data cap (GB) | Not confirmed | 10 to 1,000below the median | 15 |
| Premises covered | 8,100,000above the median | Not confirmed | 1,700,000 |
Median across 116 listed providers.
Pros and cons
Frontier Communications
Pros
- Entry pricing of $29.99 sits in the lower part of our price table, and the reference plans come with no fixed term
- Top download of 7,000 Mbps and upload of 7,000 Mbps put it near the front of the speed table
- A current Wi-Fi router is included, and Whole Home Wi-Fi mesh comes on the gigabit tier and anything faster
Cons
- A setup fee of $100 lands near the expensive end of the setup fees we track
- Some promotional deals add a charge for leaving early, and disconnecting soon after joining means paying back part of the installation cost
- Service is confined to a single market, US, so it is not an option outside the US
OiSTER
Pros
- The unlimited Fri tale Fri data plan is listed at DKK 49 a month, which ranks 13 of 173 on unlimited price.
- Rolling billing at 1 month, with Basic available pay-as-you-go and no binding period.
- Sim only, eSIM, wifi calling and a multi line discount are all available, on 5G technology.
Cons
- The DKK 18 entry price ranks 43 of 258 on the listings compared, so entry pricing is mid-table rather than the cheapest on offer.
- The Fri tale plans are published at a promotional rate before a higher standard rate, so the ongoing cost on the same plan name is the figure to budget.
- Coverage is limited to DK, so residents outside that market have nothing here to switch to.
Who each suits
Frontier Communications
Who it suits
- Households in the US inside Frontier's fibre footprint, willing to accept a setup fee of $100 for a lower monthly price
- Anyone who needs gigabit speeds for large uploads, remote work backups or shared media
- People who want to leave without a long lock-in, since the reference plans run on rolling monthly terms
Who should look elsewhere
- Households outside the US, since service is confined to a single market, US
- Shoppers who want a cable package rather than pure fibre, since Astound runs cable and fttp
- People hunting for the very lowest entry price, since cheaper options sit below $29.99
OiSTER
Who it suits
- Households in DK that want a rolling monthly bill and can cancel mobile broadband with notice.
- Readers who want unlimited data at DKK 49 a month rather than the cheapest possible entry price.
- Families running more than one line, since a multi line discount applies alongside eSIM setup for a new handset.
Who should look elsewhere
- Anyone who wants to buy from the network operator instead of an MVNO: GETESA, Lonestar Cell MTN and yesss! all sell as networks.
- Shoppers ranking purely on the lowest price from, since DKK 18 sits at position 43 of 258 and yesss! or GETESA belong on the same shortlist for that column.
Country by country
| Country | Frontier Communications | OiSTER |
|---|---|---|
| Denmark | No | Yes |
Questions about each
Frontier Communications
What is the entry price for Frontier fibre?+
Plans start at $29.99 a month, and the reference tiers step up in speed from there to a multi gigabit option at the top. Every one of them is sold on rolling terms, so the monthly figure is the number to compare against rival quotes. Speeds, not term length, are what separate the tiers here.
Do I have to sign a contract with Frontier?+
No. The reference plans, from the entry tier through to the multi gigabit tier, are all sold without a fixed term, and the listed contract length is a rolling monthly term. That leaves you free to cancel without counting out a period first, which suits anyone who expects to move or switch.
OiSTER
What is the cheapest OiSTER plan and what does it cost?+
The entry price is DKK 18 a month. Basic is the pay-as-you-go option, billed on usage with no binding period, so it works for light use and for anyone who does not want to be tied in. The two Fri tale plans sit above it, one with a capped allowance and one unlimited, so the entry figure suits a phone that lives mostly on wifi.
What will I pay when an introductory price runs out?+
The Fri tale plans are published at a promotional rate first and a higher standard rate afterwards on the same plan name, so the ongoing cost is the standard rate, not the introduction. Basic sidesteps that because it is pay-as-you-go. The unlimited plan, Fri tale Fri data, is listed at DKK 49 a month on the published pricing.
Other options to compare
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