Mobile number portability (MNP) allows mobile subscribers to retain their mobile number when switching from one mobile service provider to another. MNP was first implemented in Singapore in 1997 and in India in 2011. There are three types of MNP: service operator portability, location portability, and service portability. The MNP process involves a number portability database that tracks ported numbers and routing mechanisms to route calls to ported numbers to the new service provider. MNP provides benefits to customers like retaining their number but also challenges for service providers in implementing the technology and process.

1. PRESENTED BY:
AMITA B.CHOULIGER

2. contents• What is mobile number portability
• History of MNP
• MNP in India
• Types of MNP
• Architecture
• Technical Aspects
• Porting Process
• Benefits of MNP
• Advantages and Disadvantages
• Future Implementation
• Conclusion
• References

3. MNP

4. History of MNP Implementation
• MNP by Country Year of implementation
• Singapore June 13,1997
• Hong Kong March 01,1999
• Australia September 25,2001
• Italy April 01,2002
• Germany November 01,2002
• France June 30,2003
• USA November 24,2003
• Saudi Arabia July 08,2006
• South Africa November 10,2006
• Canada March 14,2007
• Pakistan March 23,2007
• New Zealand April 01,2007
• Mexico July 05,2008
• Brazil September 01,2008
• India January 20,2011

5. MNP in India
 On March 8 2006, the Telecom Regularity Authority of India (TRAI) issued draft
regulations to facilitate mobile number portability in India and submitted its
recommendations to the Department of Telecommunication (Dot). Finally, the Dot
recommended service provider number portability including service portability
(portability between GSM and CDMA) for all mobile service operators. It was decided to
implement the all-call-query approach for mobile number portability.
 The Dot has divided the whole country into two zones for MNP—north-west zone and
south-east zone—and awarded licenses to two vendors to work as MNP clearing house
administrators.
 Mobile number portability was started as a pilot project in Haryana on November 25,
2010 and has been implemented across the nation from January 20, 2011.
 Recently, the government of India approved New Telecom Policy-2012 (NTP), which
aims to abolish roaming charges across the country and facilitate nationwide (inter-
circle) mobile number portability

6. 1. SERVICE OPERATOR PORTABILITY
2. LOCATION PORTABILITY
3. SERVICE PORTABILITY

8. • NUMBER POOLING
• NUMBER PORTABILITY DATABASE
• ROUTING MECHANISM

9. NUMBER POOLING
Due to shortages of numbering resources FCC had approved a National
Number Pooling plan for network resource optimization
The concept of pooling is based on the fact that whole blocks of telephone
numbers, held by some service providers, are not assigned or in service.
Pooling allows these currently unassigned blocks of numbers to be
reassigned to other service providers in need of numbers, as they request
and show need.
As that supply depletes, service providers will request additional numbering
resources from the industry inventory maintained by the Pooling
Administrator

10. NUMBER PORTABILITY DATABASE
The number portability database (NPDB) keeps track of the ported numbers
and their respective service providers
The NPDB can be either centralized or distributed
b)In the centralized model, there exists a single reference database , used
when many operators are there.
a)In the distributed model there exist multiple databases, each containing
subsets of the total data, e.g. only the numbers assigned to particular service
provider , useful only when few operators are there

12. • The Originating Network receives a
Msg /call from the caller and send a
query to a centrally administered Number
Portability Database (NPDB)
• The NPDB returns the routing number
associated with the dialed directory
number.
• The Originating Network uses the
routing number to route the call to the
new serving network.

13. • The Originating Network receives a call
from the caller and routes the call to the
donor network
• The donor network detects that the
dialed directory number has been ported
out of the donor switch and checks with an
internal network-specific NPDB
• The internal NPDB returns the routing
number associated with the dialed
directory number
• The donor network uses the routing
number to route the call to the new
serving network.

14. • Receive call to the donor
network.
• The donor network detects that the
number has been ported out of the
donor switch and checks with an
internal network-specific NPDB
• NPDB returns the routing number
• The donor network releases the
call by providing the routing
number
• The Originating Network uses the
routing number to route the call to
the new serving network

15. • A call from the caller and routes
the call to the donor network.
• The donor network releases the
call and indicates that the dialed
directory number has been ported
out of that switch
• The Originating Network sends a
query to its copy of the centrally
administered NPDB
• The Originating Network uses
the routing number to route the call
to the new serving network

17. BENEFITS OF MOBILE NUMBER
PORTABILITY
 MNP gives best benefit to the customer, as they do not
have to change their number, eliminating a great headache of
communicating the new number to all his/her important
contacts
 MNP will keep all the mobile network providers on an alert
 Network provider will really treat the customer as a
king. You will get lightning response and great customer
service from your existing mobile network providers

18. ADVANTAGES DISADVANTAGES
Can retain existing mobile
number.
Just for a small fee of 19/-
You can switch from GSM to
CDMA and vice versa
Change in location having
same number
cannot switch again for the next
90 days.
Change in hand set when
change in platform

19. FUTURE IMPLEMENTATION
switch from one geographic location to other i.e. having one
number across the country. Example if your number is
registered in Karnataka you can switch to a service provider
in Gujarat
Not loosing balance on prepaid cards.
Changing from CDMA-to-GSM or vice-versa without
change in handset
If the customer has extra services, like caller tune, GPRS,
voice mail and others alike, then these services will not be
lost

20. CONCLUSION
Number portability removes important barrier to increased competition in
the telecommunications sector.
As such, it brings challenges and opportunities for old and new
telecommunications providers
To be successful in the competitive telecommunications environment,
carriers have to carefully analyze their network and administrative
infrastructures, select the best number portability solution for their needs
and exploit the benefits of increased customer choice that NP provides

21. References
 Suresh A.S January - April (2011), International Journal of Management
Research and Development (IJMRD), Mobile number portability-opportunities and
challenges.
 Aoki, R. and J. Small (1999), The economics of number portability: Switching
costs and two-part tariffs, working paper, University of Auckland.
 Detecon Number Portability
Web based references
 FCC, 1996. Telecommunications Act of 1996, Pub. LA.No. 104-104, 110 Stat. 56 (1996).
http://www.fcc.gov/telecom.html
 Network Working Group http://www.ietf.org/rfc/rfc3482.txt
 Wikipedia, Mobile Number Portability
http://en.wikipedia.org/wiki/Mobile_number_portability