What Is My ISP? How to Find Your Internet Provider

Your ISP (Internet Service Provider) is the company that sells you your internet connection — the entity responsible for routing all of your traffic between your home and the wider internet.

Every time you load a website, stream a video, or send an email, that traffic flows through your ISP's infrastructure. Think of it like the postal service for your data: when you request a webpage, your device sends packets to your ISP's network, which routes them across the internet to the destination server, retrieves the response, and delivers it back to you. Without an ISP, your device has no path to the internet.

Well-known ISPs in the United States include Comcast Xfinity, AT&T, Verizon, Spectrum (Charter), Cox, and T-Mobile Home Internet. In the UK, the major ISPs are BT, Sky, Virgin Media, and TalkTalk. Every country has its own set of regional and national providers.

Your ISP assigns you an IP address — a unique number that identifies your connection on the internet. When any website or service you connect to looks up where you are coming from, they see this IP address, which is tied directly to your ISP. This is how sites like myipco.com can display not just your IP, but also your ISP's name alongside it.

The fastest way to find your ISP is to visit myipco.com — it shows your current IP address and ISP name the moment the page loads. No tools, no commands, no digging through router settings. The ISP shown is the one that owns the IP address currently assigned to your connection.

If you want to find it manually, you have a few options:

Check your router or modem: The ISP's name is often printed on the hardware itself, or visible in the admin panel. Open a browser and navigate to 192.168.1.1 or 192.168.0.1 (the most common default gateway addresses). The login credentials are usually on a sticker on the device.

Check your bill or email: Your ISP sends monthly bills or statements. The company name on that bill is your ISP — this is the most authoritative answer.

Use a command-line tool: On Windows, open Command Prompt and type `tracert 1.1.1.1`. The first few hops show your ISP's network. On macOS or Linux, the equivalent is `traceroute 1.1.1.1`. The hostnames in the output typically include your ISP's domain.

Look up your IP address: Run a WHOIS lookup on your current IP address. The result will show the organization that owns the IP block — which is your ISP. For example, if your IP is 98.143.43.21, a WHOIS query returns "Comcast Cable Communications."

For most people, visiting myipco.com is the simplest approach — the ISP is displayed automatically on the homepage without any extra steps.

Not all ISPs deliver internet the same way. The technology your ISP uses affects your speeds, latency, and reliability.

Cable: Uses the same coaxial cable infrastructure originally built for TV. Providers like Comcast Xfinity and Spectrum are cable ISPs. Speeds typically range from 100 Mbps to 1.2 Gbps. One catch: cable is a shared medium — your speeds can slow during peak evening hours when neighbors are all online simultaneously.

Fiber: Transmits data as pulses of light through glass fiber cables. Providers like Google Fiber, AT&T Fiber, and Verizon Fios offer fiber. Speeds can reach 2–5 Gbps symmetrically (same speed up and down). Fiber has the lowest latency of any fixed broadband type and is not affected by neighborhood congestion. It is the gold standard — the main limitation is that it is not available everywhere.

DSL (Digital Subscriber Line): Runs over existing telephone copper wiring. Providers like AT&T and CenturyLink have historically offered DSL. It is widely available in rural areas but slow — typically 10–100 Mbps — and speeds degrade with distance from the telephone exchange. DSL is being phased out in most markets.

Satellite: Transmits data to and from satellites in orbit. Traditional satellite internet (like HughesNet and Viasat) uses geostationary satellites 35,000 km above Earth, resulting in latency of 500–800 ms — unusable for gaming or video calls. Starlink uses a low-Earth orbit constellation at around 550 km, bringing latency down to 20–60 ms and speeds of 50–250 Mbps. It is the only viable option in many rural and remote areas.

Mobile (4G/5G home internet): Uses cellular towers to deliver home broadband. T-Mobile Home Internet and Verizon Home Internet are the main US providers. Speeds vary widely (50–500 Mbps), latency is moderate (30–80 ms), and performance depends heavily on how close you are to a tower. It has become a compelling alternative to cable in underserved areas.

This is the privacy question most people do not think to ask — and the answer is more than most people expect.

Your ISP can see:

Every DNS query you make. When you type a website address, your device sends a DNS request to resolve the domain to an IP address. By default, that request goes to your ISP's DNS servers in plain text. Your ISP has a complete log of every domain you visited, timestamped, tied to your account. This is true even for HTTPS sites — encryption protects the content, not the DNS query.

Your IP-level traffic patterns. Your ISP sees which IP addresses you connect to, how much data you transfer, and when. Even without reading the content of encrypted connections, traffic analysis can reveal a lot about behavior.

Unencrypted traffic in full. Any website you visit over plain HTTP (no HTTPS) is visible to your ISP in its entirety — URLs, page content, form submissions. Most major sites use HTTPS today, but plain HTTP still exists.

What your ISP cannot see (with HTTPS): The content of your requests — the specific page you viewed on a site, the search terms you entered, the messages you sent. HTTPS encrypts this.

What your ISP cannot see (with a VPN): Almost everything. A VPN encrypts all your traffic before it leaves your device. Your ISP sees only that you connected to a VPN server, and the volume of encrypted data — nothing more. Read our guide on how to hide your IP address for a full breakdown of your options.

In many countries, ISPs are allowed to retain DNS logs for months or years, and to share them with authorities on request. In the US, ISPs can also sell anonymized browsing data to advertisers. Switching to an encrypted DNS resolver (like Cloudflare's 1.1.1.1 with DNS over HTTPS) is the easiest first step toward limiting this exposure. You can see what information your browser is currently leaking by checking your request headers.

The terms ISP and carrier are often used interchangeably, but there is a meaningful distinction.

A carrier is a company that owns and operates the physical network infrastructure — fiber cables, cellular towers, data centers, submarine cables. Carriers are sometimes called Tier 1 or Tier 2 networks. Examples of pure carriers include Level 3 (now Lumen), Tata Communications, and NTT. These companies interconnect with each other and carry massive volumes of traffic across the global internet backbone.

An ISP is the retail-facing layer — the company that sells internet access to homes and businesses. Many ISPs own their own infrastructure (making them both carrier and ISP), while others lease capacity from carriers to resell. A small regional ISP might lease bandwidth from AT&T and sell it to rural customers under its own brand.

In practice, when most people say "my ISP," they mean the company they pay for internet service — whether it owns infrastructure or not.

ASN (Autonomous System Number) is the technical identifier assigned to each network that participates in the global internet routing system. Your ISP has an ASN. You can look up the ASN associated with any IP address — including your own — using our WHOIS lookup tool. The ASN reveals which organization technically controls the IP address block, which may be your ISP or one of the carriers they use.

An ISP speed test measures the actual throughput between your device and a server on the internet — giving you a real-world picture of whether you are getting the speeds your ISP advertises.

How to run one: The most widely trusted speed tests are Speedtest by Ookla and Fast.com (run by Netflix). Both are free, run in your browser, and take about 30 seconds.

What the numbers mean: - Download speed — How fast data arrives at your device (Mbps or Gbps). This affects streaming, browsing, and file downloads. - Upload speed — How fast data leaves your device. Critical for video calls, uploading files, and gaming. - Ping (latency) — The round-trip time in milliseconds between your device and the test server. Under 20 ms is excellent; above 100 ms will feel sluggish for interactive use. - Jitter — Variation in latency over time. High jitter causes choppy video calls even when average ping is fine.

Tips for accurate results: Connect your device directly to your router via Ethernet cable before testing — Wi-Fi introduces its own bottlenecks that are separate from your ISP's performance. Close other applications that use bandwidth. Run the test three times at different times of day; cable ISPs in particular can slow down significantly in the evening when neighborhood usage peaks.

If your results are consistently well below your plan's advertised speed, document them (screenshot with date and time) and contact your ISP. You may be entitled to a service credit or technician visit under the terms of your contract.

Switching ISPs is more straightforward than most people expect. Here is how to approach it.

Step 1: See what is available at your address. ISP availability is entirely location-dependent. In the US, BroadbandSearch.net and the FCC's Broadband Map show every provider available at a given address. In the UK, Ofcom's checker does the same. Enter your address to see which ISPs serve your location, with advertised speeds and technology types.

Step 2: Prioritize technology over price. Fiber beats cable beats DSL on almost every metric. If fiber is available, it is usually worth the slight premium — you get symmetrical speeds, lower latency, and no congestion at peak hours. If fiber is not available, cable is typically the next best option.

Step 3: Read the contract carefully. Look for: introductory pricing that jumps after 12 months (extremely common), early termination fees (typically $100–$200), data caps and overage fees, and equipment rental fees. Many ISPs charge $15–$20/month to rent a modem and router. Buying your own compatible modem pays for itself in about a year.

Step 4: Schedule installation before cancelling your existing service. Never cancel your current ISP until the new service is confirmed and working. Same-day or next-day switching is rarely possible — installation appointments are typically booked 1–2 weeks out.

Step 5: Negotiate. Before switching, call your current ISP and tell them you are considering a competitor. Retention departments often have access to unpublished discounts or free speed upgrades that regular customer service cannot offer.

Once your new connection is live, verify your ISP has changed by visiting myipco.com — your new provider's name will appear next to your updated IP address. You can also do a DNS lookup on your new IP to confirm the ISP assignment has propagated correctly.