# 0x14 - Zero X Fourteen Ltd

> Consultancy specialising in high-performance telecommunications infrastructure. Operating worldwide, UK registered.

## About

0x14 is a consultancy built on 20+ years of hands-on telco and IT experience — from building ISP networks from scratch to large-scale multi-vendor integration across multiple operators worldwide. We specialise in carrier-grade infrastructure: network architecture, lawful intercept compliance, and performance optimisation at scale.

Founded by Josip Duricic - 99x engineer.

## Services

- Build: Design and build carrier-grade networks — routing, signalling, policy, and custom software. Greenfield or not, on-prem or cloud. (Cisco, Arista, Huawei, Juniper, BGP, EVPN, SS7, SIP, PCRF, PCEF, OCS, DPI, OSS/BSS)
- Comply: ETSI and custom compliant lawful intercept and data retention solutions — voice, data, mediation, and audit-ready architectures built to withstand regulatory compliance. (ETSI TS 102.232, Data Retention, Mediation, Big Data, CGN Log, Subscriber Awareness)
- Optimise: Deep-dive diagnostics and performance tuning across complex multi-vendor stacks. Because downtime is not really an option. (PCAP, SNMP, NetFlow, IPFIX, BMP, Syslog, Telemetry, DEBUG, RCA, QoS, Capacity Planning)

## Technical Expertise

Cisco / Arista / Huawei / Juniper, BGP / EVPN / BNG / CGN, SS7 / SIP / IMS, PCRF / PCEF / OCS, Lawful Intercept (ETSI TS 102 232), DOCSIS / FTTH / xDSL, 3GPP / 3G / 4G / 5G, Procera / Sandvine DPI, Mediation / OSS / BSS, AWS / Cloud Migration, Python / C/C++ / CUDA, Linux / FreeBSD

## Company

- Company: Zero X Fourteen Ltd
- Company Number: 16025388
- Registered Address: 11/12 Hallmark Trading Centre, Fourth Way, Wembley, Middlesex, HA9 0LB, United Kingdom
- Contact: 101@zero-x14.io