lookup> ISDN

ISDN ·Record

for ISDN address

value 20activeRFC 1183

Quick facts

TypeISDN

Value20

Statusactive

Meaningfor ISDN address

SpecificationRFC 1183

Purpose

What does a ISDN record do?

for ISDN address

ISDN is one of the DNS resource record (RR) types defined by RFC 1183.

Related record types

Frequently asked questions

Used for DNS resolution and zone configuration.

In the DNS management panel of your registrar or DNS provider (for example Cloudflare or Route53).

Sources & standards

Updated 2026-08-18

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