5G Band Lookup Tool for USA

The 5G and LTE Band lookup tool lets you:

• pick a carrier and instantly see the 5G bands they commonly use,
• search by band number (like n71 or n260) to see likely carriers and frequency ranges,
• enter a frequency in MHz (like 3700) to find the most likely 5G band(s),
• and optionally reveal LTE equivalents (like B71) to make device support checks way easier.

✅ What This Tool Helps You Do

Most people get stuck in one of these situations:

• You’re buying a phone and want to know if it supports your carrier’s “real” 5G bands.
• You’re comparing T-Mobile vs Verizon vs AT&T and want to understand why one has better range and another is faster downtown.
• You’re reading a spec sheet, a modem datasheet, or an FCC filing and see frequency blocks like 2496–2690 MHz, but you need the band name.
• You want to relate 5G to LTE, especially when troubleshooting or explaining compatibility.

This tool solves those problems by turning confusing band numbers into something practical:
layer (low/mid/mmWave), frequency range, duplex type, typical use, and LTE equivalents.

🚀 Quick Primer: Low-band vs Mid-band vs mmWave

Think of 5G like three “layers” of coverage.

🟢 Low-band (coverage)

• Travels far, penetrates walls well
• Great for highways, suburbs, rural
• Speeds can be decent but not always “wow”

Typical examples: n71 (600 MHz), n5 (850 MHz), n12 (700 MHz)

🟡 Mid-band (best balance)

• The sweet spot, solid range + strong speed
• Most “real 5G” performance comes from here

Typical examples: n41 (2.5 GHz), n77 (C-band), n48 (CBRS)

🔵 High-band / mmWave (fastest, shortest range)

• Insanely fast, but only works close to the site
• Usually downtown, stadiums, airports, dense areas
• Doesn’t like walls, trees, or distance

Typical examples: n260 (39 GHz), n261 (28 GHz)

🧩 LTE Equivalents: Why They Matter

A lot of hardware still lists LTE bands more clearly than 5G bands.

Example:

• n71 (5G) maps to B71 (LTE)
• n41 maps to B41
• n66 maps to B66

So if you’re trying to answer:

• “Does my phone support T-Mobile’s extended-range 5G?”
• “Does this modem support the same spectrum in LTE fallback?”

…turning on Show LTE equivalents makes that super fast.

🛠️ How to Use the Tool (3 Ways)

1) Carrier → Bands (fastest for most readers)

Use this when you want to understand what a carrier typically uses.

Steps

1. Select a carrier (T-Mobile, Verizon, AT&T)
2. Optional: choose a Layer (Low / Mid / High)
3. Type into Search to filter results (try n41, mmwave, 3700, etc.)
4. Toggle Show LTE equivalents if you want the LTE band numbers

Best use cases

• building a “carrier overview” section in your article
• comparing coverage layers between carriers
• quickly listing “most important bands” for buyers

Example
If you pick T-Mobile and filter to Low, you’ll typically see n71, which is a big reason T-Mobile’s 5G reaches farther in many areas.

2) Band → Carriers (great for spec sheets)

Use this when you already know the band and want context.

Steps

1. Click the Band → Carriers tab
2. Type a band like n77 or pick it from the dropdown
3. You’ll see:
   • likely US carrier mapping
   • band layer
   • duplex type
   • frequency range
   • LTE equivalent

Best use cases

• you’re reading a phone/modem datasheet
• you’re making a comparison table
• you want to explain a band in plain English

Example
Type n77 and you’ll see it’s mid-band, used heavily for C-band deployments, and is a key “fast 5G” layer for Verizon and AT&T.

3) Frequency → Band (super useful for engineers)

Use this when you have a frequency and want the most likely band.

Steps

1. Click Frequency → Band
2. Enter a frequency in MHz
   • examples: 2600, 3700, 28000
3. The tool returns likely matching NR bands and common carriers.

Best use cases

• turning raw spectrum ranges into band names
• translating RF test notes into something readers recognize
• mapping “what band is 3.7 GHz?” quickly

Example
Enter 3700 MHz and you’ll typically match n77, because that’s in the broad C-band/3.x GHz mid-band zone.

🔎 How to Read the Results (So They Make Sense)

Each row is designed to answer the questions readers actually have:

• NR Band: the 5G band name (nXX)
• LTE eq.: the closest LTE band mapping (BXX), if available
• Layer: Low / Mid / High
• Duplex:
  • FDD = separate uplink/downlink (common in low-band)
  • TDD = shared time-splitting (common in mid-band and mmWave)
  • SDL = downlink-only supplemental (some capacity bands)
• Approx range: human-friendly frequency block
• What it’s used for: the “why you care” summary

📌 Practical Examples You Can Copy Into Your Article

Example A: Buying a phone for T-Mobile

If your phone supports:

• n71 (coverage) + n41 (speed)

…you’ll typically get the best “real-world” experience on T-Mobile.

Example B: Why Verizon 5G feels inconsistent

Verizon can be:

• extremely fast on n260/n261 (mmWave),
• very strong on n77 (mid-band),
• but mmWave won’t reach far.

So the experience changes a lot by location.

Example C: Troubleshooting “5G icon but slow”

Often you’re on a low-band 5G layer (coverage-first), not mid-band.
Filter the carrier view to Low and you’ll see the likely suspects.

⚠️ Important Notes (Accuracy + Real-World Deployment)

This is a lookup tool, not a guarantee of what’s live on your street.

Real networks can vary by:

• market (city vs rural)
• licensing/holdings
• spectrum refarming
• DSS (dynamic spectrum sharing)
• device support
• carrier upgrade cycles

So treat results as:
“Commonly used bands and likely match