Telephone numbering plan

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/telephone-numbering-plan

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the private network management?Private Branch Exchanges (PBXs) manage internal numbering plans within organizations
2. What is the evolutionary drivers?Technological advancement, network growth, and user demand have shaped numbering plan development
3. Why do telephone numbers have area codes?Area codes show where a number is located and help route calls quickly. They also help manage how many numbers a region can use.
4. How do telephone numbering plans help with new services like 5G?They give each device a unique number so it can connect to the network. This lets phones, cars, and smart devices talk to each other.

Public Switched Telephone Network (PSTN): The global network of interconnected telephone systems facilitating voice communication.
International Telecommunication Union (ITU): A specialized agency of the United Nations responsible for global telecommunications standards.
Number Portability: The ability for subscribers to keep their telephone number when switching service providers.
Internet of Things (IoT): A network of physical devices embedded with sensors, software, and connectivity to exchange data.