| Work item | Question | Equiv. Num. | Status | Timing | Approval process | Version | Liaison relationship | Subject / Title | Priority |
| E.101 | Q1/2 | | Under study | 2027 | TAP | Rev. | - | Definitions of terms used for identifiers (names, numbers, addresses and other identifiers) for public telecommunication services and networks in the ITU-T Recommendations | Medium |
| E.118 | Q1/2 | | Determined 2025-02-14 | - | TAP | Rev. | - | Numbering resources for Cards to identify accounts for charging telecommunication services | Medium |
| E.118.1 | Q1/2 | | Under study | 2027 | TAP | Rev. | - | Allocation, assignment and management of global Issuer Identifier Numbers (IINs) | Medium |
| E.169 | Q1/2 | | Under study | 2029 | TAP | Rev. | - | Application of Recommendation E.164 Numbering plan for Universal International numbers for International Telecommunications services using Country Codes for Global Services | Low |
| E.195 | Q1/2 | | Under study | 2027 | TAP | Rev. | - | ITU-T International NNAI ressources Administration | Medium |
| E.RAA4Q.TSCA | Q1/2 | | Under study | 2027 | TAP | New | - | Registration authority assignment criteria to issue digital public certificates for use by Q.TSCA | High |
| ESTR.DNO | Q1/2 | | Under study | 2027 | Agreement | New | - | Comprehensive Do-Not-Originate (DNO) | Medium |
| ESTR.OTTnum | Q1/2 | | Under study | 2026 | Agreement | New | - | The Current Use of E.164 Numbers as Identifiers for OTTs | High |
| ESTR.OTTNumMgt | Q1/2 | | Under study | 2026 | Agreement | New | - | Technical Report on OTT numbering management | High |
| ESTR.UID-SIM-IMEI (ex ESTR.NIN-SIM-IMEI) | Q1/2 | | Under study | 2026 | Agreement | New | ITU-T Study Group, 11 ITU-T Study Group 20, GSMA | Technical Report on UID-SIM-IMEI Integration | Medium |