AutoNeX: Autonomous Broadband Orchestration is a Catalyst project focused on solving a critical challenge in open‑access broadband markets: the lack of end‑to‑end automation across wholesale and retail network boundaries. In many regions, last‑mile fibre infrastructure is delivered by wholesale providers, while retail CSPs deliver services to end customers. This structural separation creates fragmented processes, misaligned data models, and manual hand‑offs that prevent true autonomous operations and degrade customer experience. AutoNeX introduces an agentic, intent‑driven orchestration approach designed to coordinate service fulfilment, assurance, and fault management seamlessly across multiple operators. Service requests are expressed as high‑level intents and executed dynamically by AI agents that operate across organisational domains. These agents continuously consume real‑time operational data, including telemetry, events, and service tickets, to coordinate actions, detect issues, and trigger closed‑loop remediation without manual intervention. The innovation lies in moving beyond static OSS/BSS integrations and rigid workflows. Instead, AutoNeX enables collaborative autonomy, where intelligent agents adapt workflows in real time, align operational tasks across operators, and maintain a unified view of service state. By integrating with existing AIOps and ITSM platforms and applying consistent service and data models, the solution eliminates common sources of delay, error, and SLA breach. For CSPs, the impact is tangible: faster service activation, reduced operational effort, improved SLA compliance, and a more reliable end‑to‑end customer experience. AutoNeX supports a measurable transition from fragmented, manual broadband operations to a unified, automated, and autonomous service orchestration model providing a practical, standards‑aligned pathway toward TM Forum Autonomous Networks Level 4 in multi‑operator environments.