Why does ipnow.kr show CMB as my internet provider?
ipnow.kr shows CMB when your public IP belongs to its network, AS38684. CMB is a regional South Korean cable TV and internet provider serving the Chungcheong and central region, so this normally means you are connected through a CMB cable modem at home.
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What is CMB?
CMB is a South Korean cable television and cable internet provider that mainly serves the Chungcheong and surrounding central region. Like Dlive and LG Hellovision, it is a regional cable operator rather than one of the three big national telecom carriers, and it runs its own independent broadband network.
Because CMB's service area is more regional than nationwide, seeing "CMB" on an IP lookup is a reasonably strong signal that the connection originates in or near that part of Korea.
Why does my IP show CMB?
If your home internet is a CMB cable connection, this is exactly the expected result.
It can also appear on a shared apartment or office line billed through CMB, or on a VPN or proxy whose exit server happens to be hosted on a CMB address range. If this looks unexpected for your situation, check that your VPN works to see whether a VPN is active.
- A home cable internet line from CMB
- A shared building or office line billed through CMB
- A VPN or proxy exiting through a CMB address
What is CMB's ASN?
CMB's Autonomous System Number is AS38684, the identifier that marks a block of addresses as belonging to CMB rather than another regional cable operator or national carrier. See what is an ASN for a general explanation.
A verified public DNS resolver pair for CMB is not available, so none is listed here; CMB cable modems typically receive DNS settings automatically from CMB's own network.
How do I confirm this on ipnow.kr, and does CMB support IPv6?
Open the ipnow.kr homepage and check the ISP and ASN fields shown next to your public IP; on a CMB line you should see "CMB" and AS38684. If the location shown looks off, why your IP location can be wrong explains why regional cable ISPs can still show an imprecise location.
IPv6 support depends on your carrier, plan and device, so it can vary between CMB customers. Most residential CMB lines use a dynamic IP; see dynamic vs static IP for what that means if you need a fixed address instead.
| Item | Value | Source |
|---|---|---|
| ASN | AS38684 | DB-IP ASN Lite (2026-09) · 2026-09 |
Frequently asked questions
Is CMB a national or regional ISP?
CMB is a regional cable operator focused on the Chungcheong and central region of South Korea, unlike nationwide carriers such as KT, SK Broadband and LG Uplus.
Is CMB related to Dlive or LG Hellovision?
No, CMB, Dlive and LG Hellovision are separate cable companies, each with its own independent network and ASN, even though they offer similar cable TV and internet services.
Can I get a static IP from CMB?
Static IPs are generally available only on CMB's business-grade lines; residential connections normally use a dynamic IP, as explained in dynamic vs static IP.
Why might ipnow.kr show a nearby city instead of my exact town on CMB?
IP geolocation estimates location from where an address block is registered rather than your exact address, so it can point to the nearest hub city; see why your IP location can be wrong.