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Last update: 06-05-2022
ECC Report Draft ECC Report on Numbering for Private Networks
It is expected that with the rollout of LTE/5G there will be a need to interconnect many private networks with public networks and, from a numbering perspective, a coordinated approach to the assignment and use of E.212 and E.164 resources and other relevant numbering resources for this purpose may be required.

It is noted that various regulators, notably Ofcom & BNetzA, are licensing spectrum in localised areas, intended for private LTE & 5G networks for enterprises. It is likely that there will be a mix of network topologies that could emerge from this, mainly:
• isolated & purely private networks
• private networks with interconnect/roaming to public networks
• wholesale / neutral-host networks
• new managed service providers with spectrum in a number of locations (e.g. a Smart Building Mobile Operators)
• MVNOs or “slice” virtual networks linked to an existing MNO, perhaps with a separate core & local breakout run by the enterprise
• Vertical players with wide-area / national networks (utilities, road & rail, public safety etc.)

From a numbering perspective, these developments raise some questions:

1. At present, it is very unclear how these private/public networks will obtain numbers. Is there a need for NPAs to develop policies in relation to this?
2. These networks will be predominantly mobile. What are their needs with respect to MCCs and MNCs or can they use MCC 999 or MNCs under MCC 902 for SDOs etc?
3. What are the implications for using E.164 and E.212 numbering resources for cross-border enterprises ?
4. What are the implications for roaming in general? (Home versus visited networks and across borders).

LTE and 5G are happening now and network technology development and network rollout is likely to accelerate to hundreds, if not thousands, of new networks. NaN1 should consider developing an ECC Report on this subject informed by discussions with industry stakeholders.

S: 14-11-2019
T: 27-05-2021
In Progress
Last update: 06-05-2022
ECC Report ECC Report on Numbering issues for cloud-based communication services


We see more and more new applications emerging where phonenumbers are decoupled from SIM cards and/or fixed lines. They are dynamicallyassigned for short periods of time and or used for applications where there isno longer a strict relationship with a fixed/mobile phone line. Differentterminologies such as virtual numbers or cloud numbers, are used to describethis phenomenon.

These innovations have been made possible by using the cloudto provide electronic communications services.

There are many regulatory requirements in place in relationto the use of different types of number resources, in particular those designedto protect the interests of end-users, to facilitate competition and to ensurethe effective and efficient use of numbering resources. Are all of theseregulatory requirements reasonable and proportionate for those newapplications? In some circumstances they can even be contra-productive andhamper innovation.

The report will first of all describe these evolutions ofthe network and the new services based on those networks, will bring forward adefinition, make an assessment of the different regulatory requirements (e.g.number portability, CLI issues, emergency calls, relation of the identificationof calls with misuse or fraud) and other aspects (e.g. sub- assignment,security of communication) and their relevance to this new numbering usage andfinally make recommendations for the CEPT countries on numbering policy.

Special attention will be given to the question of whoexactly are the end-user and provider of the telephone numbers and theirtypical extraterritorial use.

S: 24-11-2021
T: 23-11-2023
NaN1 (working jointly with NaN2 and NaN3)
In Progress
* Target dates are seen as the intended date for the final approval of the related deliverable by the responsible entity. Internal deadlines for project teams and dates for the start of Public Consultations can be reflected in the remarks column. In general this implies that the draft deliverable should be completed by the project team one WG meeting earlier for publication.
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