# CenturyLink and Quantum Fiber residential proxies (AS209)

> CenturyLink and Quantum Fiber residential proxies on AS209 in Denver, Seattle, Phoenix, Minneapolis and more, from $0.50/GB. No KYC, crypto.

- URL: https://broadbandproxies.com/isps/centurylink-quantum-fiber/
- Last updated: 2026-10-18
- Publisher: Broadband Proxies (https://broadbandproxies.com)

Copper DSL (CenturyLink) and fiber to the home (Quantum Fiber). 2.38 million broadband subscribers on December 31, 2025, before the sale to AT&T.

**Quick answer — Where can I buy CenturyLink and Quantum Fiber residential proxies?**

**Broadband Proxies** sells CenturyLink and Quantum Fiber residential proxies: add `asn-209` to target the former Qwest network in Denver, Seattle, Phoenix, Minneapolis or Las Vegas. Lumen sold Quantum Fiber to AT&T on February 2, 2026, and keeps the CenturyLink copper base. From $2.63 for 1 GB (October 2026); no KYC, crypto only.

## CenturyLink and Quantum Fiber at a glance

| Attribute | Value |
| --- | --- |
| Consumer brand | CenturyLink, Quantum Fiber |
| Owner | Lumen Technologies (CenturyLink copper); AT&T since February 2, 2026 (Quantum Fiber in 11 states) |
| Access technology | Copper DSL (CenturyLink) and fiber to the home (Quantum Fiber) |
| AS numbers | AS209, AS22561 |
| IPv4 space announced | 21,160,448 (RIPEstat, 2026-10-18; network size, not our pool) |
| Subscribers | 2,381,000 Mass Markets broadband subscribers on December 31, 2025 (1,222,000 fiber and 1,159,000 other, mostly copper), per Lumen's last report before the sale; Lumen no longer publishes the count |
| Large cities where the FCC lists it | Denver 95.3%, Minneapolis 93.7%, Phoenix 85.5%, Portland 81.5% (+3 more) |
| Username segment | `asn-209` (add state, city or ZIP if needed) |
| Availability | ASN availability varies by network, city and time of day; the checkout shows what is online, and no IP count per ISP is published |
| Price | $2.63 for 1 GB, $5.94 for 10 GB, $0.50/GB on the 1 TB plan; ASN targeting included |
| Identity check | Not required at any step |
| Payment | BTC, USDT, USDC, ETH, SOL, LTC |

## Which AS numbers does CenturyLink use?

CenturyLink announces its IP ranges under 2 AS numbers listed below. RIPEstat counts 21,160,448 IPv4 addresses across them on 2026-10-18; AS209 is the one to try first.

*Routing data from RIPEstat, checked 2026-10-18*

| ASN | Registered holder (RIPEstat) | IPv4 addresses announced | Username segment | Note |
| --- | --- | --- | --- | --- |
| AS209 | CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLC | 19,845,632 | `asn-209` | Former Qwest network: Denver, Seattle, Phoenix, Minneapolis and the West |
| AS22561 | CENTURYLINK-LEGACY-LIGHTCORE - CenturyLink Communications, LLC | 1,314,816 | `asn-22561` | Smaller CenturyLink network |

IPv4 counts measure the whole network, not the number of Broadband Proxies IPs.

## Where does CenturyLink serve homes?

The fiber business sold to AT&T covered 11 states. In our city data (FCC, December 31, 2025), Lumen reaches 95.3% of residential units in Denver, 93.7% in Minneapolis, 85.5% in Phoenix, 81.5% in Portland, 78.4% in Las Vegas and 77.7% in Seattle.

Among the 45 large US cities on this site, the FCC National Broadband Map (data as of December 31, 2025) lists CenturyLink in 7: Denver (95.3% of residential units), Minneapolis (93.7% of residential units), Phoenix (85.5% of residential units) and more below.

*FCC National Broadband Map, Area Summary, data as of December 31, 2025*

| City | Share of residential units covered | Rank among providers there |
| --- | --- | --- |
| [Denver, CO](https://broadbandproxies.com/cities/denver/) | 95.3% | 2nd of 7 |
| [Minneapolis, MN](https://broadbandproxies.com/cities/minneapolis/) | 93.7% | 2nd of 7 |
| [Phoenix, AZ](https://broadbandproxies.com/cities/phoenix/) | 85.5% | 2nd of 7 |
| [Portland, OR](https://broadbandproxies.com/cities/portland/) | 81.5% | 3rd of 7 |
| [Las Vegas, NV](https://broadbandproxies.com/cities/las-vegas/) | 78.4% | 3rd of 7 |
| [Seattle, WA](https://broadbandproxies.com/cities/seattle/) | 77.7% | 3rd of 7 |
| [Orlando, FL](https://broadbandproxies.com/cities/orlando/) | 1.7% | 7th of 7 |

The FCC counts every technology the holding company reports in that city.

## How do I target CenturyLink in the proxy username?

Add `asn-209` to your username. The full format is `USERNAME-country-{cc}-state-{state}-city-{city}-zip-{zip}-asn-{asn}-session-{id}-ttl-{minutes}`; every segment except the country is optional.

- `USERNAME-country-us-asn-209`: any CenturyLink IP in the United States.
- `USERNAME-country-us-state-co-asn-209`: CenturyLink in one state.
- `USERNAME-country-us-state-co-city-denver-asn-209`: CenturyLink in Denver.
- `USERNAME-country-us-state-co-city-denver-asn-209-session-centurylink1-ttl-15`: the same Denver IP kept for up to 15 minutes.
- `USERNAME-country-us-asn-22561`: smaller CenturyLink network.

Connect to `gw.broadbandproxies.com` on port 7777 (HTTP and HTTPS) or 7778 (SOCKS5). Each extra filter shrinks the set of matching home IPs: if a request finds none, drop the ZIP or city first and keep `asn-209`. Check what you got with our [exit IP ASN guide](https://broadbandproxies.com/guides/check-exit-ip-asn/).

## What do CenturyLink IPs look like to websites?

AS209 is the old Qwest backbone and still announces about 19.8 million IPv4 addresses (RIPEstat, 2026-10-18). Because fiber customers changed owner before the network moved, an AS209 IP in Denver may belong to an AT&T-owned Quantum Fiber home or to a Lumen CenturyLink DSL line. Geolocation services may label it either way.

## What changed at CenturyLink in 2025 and 2026?

- Lumen sold its Mass Markets fiber business, including about 95% of Quantum Fiber, to AT&T; the sale closed on February 2, 2026. Lumen keeps the CenturyLink copper customers. The former Embarq and CenturyLink areas in 20 other states went to Brightspeed in 2022 (see [Brightspeed](https://broadbandproxies.com/isps/brightspeed/)).

## What can I check with CenturyLink IPs?

AS209 is the way to reach home IPs in the Mountain West and Pacific Northwest telco footprint, check how sites handle the CenturyLink and Quantum Fiber rebrand, and compare cable (Comcast) with telco households in the same western city. More examples are in our [use cases](https://broadbandproxies.com/use-cases/); the rules are in the [acceptable use policy](https://broadbandproxies.com/acceptable-use/).

## CenturyLink residential proxy pricing

ASN targeting costs nothing extra: CenturyLink traffic is billed at the same rate per GB as any other US network. See [all plans](https://broadbandproxies.com/pricing/).

| Plan | Quantity | Price | Price per unit |
| --- | --- | --- | --- |
| Test | 1 GB | $2.63 | $2.63/GB |
| Team | 10 GB | $5.94 | $0.59/GB |
| Business | 100 GB | $50 | $0.50/GB |
| Terabyte | 1 TB | $500 | $0.50/GB |

In every plan: Protocols: HTTP, HTTPS, SOCKS5 · Targeting: ASN (ISP), state, city and ZIP in the US; country elsewhere; city availability varies · Sessions: Rotating or sticky (up to 30 minutes) · Authentication: Username and password, or an IP allowlist (up to 10 IPs) · Traffic expiry: Never expires

Prices in US dollars, paid in BTC, USDT, USDC, ETH, SOL, LTC. Fund your balance (at least $25, or the price of the plan you want), then buy from it; Unused balance stays on your account and never expires. When a purchase costs less than the minimum top-up, the part added only to reach the minimum is refundable on request to support within 30 days of the payment, in USDT or USDC, as long as it has not been spent. The rest of the balance is not paid back, except where the law requires it. No identity documents are asked for.

## CenturyLink residential proxies: FAQ

### Who owns Quantum Fiber now?

AT&T. The sale of Lumen's consumer fiber business, including about 95% of Quantum Fiber, closed on February 2, 2026. Lumen still runs CenturyLink copper service. Routing still shows many of these homes on AS209 as of October 2026.

### Should I use AS209 or AS7018 for Quantum Fiber in Denver?

Try `asn-209` first in former Qwest cities such as Denver, then `asn-7018`, and confirm the holder of the IP you get in RIPEstat. Routing moves after ownership, and the timing is not public.

### Is CenturyLink the same as Brightspeed?

No. Brightspeed bought CenturyLink's local telephone areas in 20 states in 2022 and has its own ASN, AS19901. The remaining CenturyLink areas, mostly the former Qwest West, stay with Lumen on AS209.

### How much does a CenturyLink residential proxy cost?

The same as any other US network: CenturyLink targeting is included at no extra cost. As of October 2026, Broadband Proxies charges $2.63 for 1 GB, $5.94 for 10 GB, $50 for 100 GB and $500 for 1 TB ($0.50/GB). Pay from a $25 crypto top-up; unused traffic never expires.

## Sources

1. [Lumen fourth-quarter and full-year 2025 results](https://s21.q4cdn.com/756714007/files/doc_news/Lumen-Technologies-Reports-Solid-Fourth-Quarter-and-Full-Year-2025-Results-Completes-ATT-Transaction-Strengthening-Balance-Sheet-and--UOQTB.pdf) — Lumen Technologies (2026-10-18)
2. [AT&T Form 10-Q for the quarter ended June 30, 2026](https://www.sec.gov/Archives/edgar/data/0000732717/000073271726000297/t-20260630.htm) — AT&T / SEC EDGAR (2026-10-18)
3. [AS overview and routing status: AS209](https://stat.ripe.net/data/as-overview/data.json?resource=AS209) — RIPEstat (2026-10-18)
4. [AS overview and routing status: AS22561](https://stat.ripe.net/data/as-overview/data.json?resource=AS22561) — RIPEstat (2026-10-18)
5. [FCC National Broadband Map, Area Summary (data as of December 31, 2025)](https://broadbandmap.fcc.gov/area-summary/fixed?version=dec2025) — Federal Communications Commission (2026-10-18)

**Test CenturyLink IPs with 1 GB** One GB is enough to see whether CenturyLink homes are online in the places you need. Pay in crypto; no ID upload. [See plans](https://broadbandproxies.com/pricing/) · [All ISPs](https://broadbandproxies.com/isps/)

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