Trying to extract the vendor information (Apple, Samsung, etc) from Probe Request coming from mobile, So far no luck. Not sure where the corrections to be made to get this info. Adding my code: import codecs from scapy.all import * from netaddr import * def handler(p): if not (p.haslayer(Dot11ProbeResp) or p.haslayer(Dot11ProbeReq) or p.haslayer(Dot11Beacon)): return rssi = p[RadioTap].dBm_AntSignal dst_mac = p[Dot11].addr1 src_mac = p[Dot11].addr2 ap_mac = p[Dot11].addr2 global macf maco = EUI(src_mac) try: macf = maco.oui.registration().org except NotRegisteredError: macf = "Not available" info = f"rssi={rssi:2}dBm, dst={dst_mac}, src={src_mac}, ap={ap_mac}, manf= {macf}" if p.haslayer(Dot11ProbeReq): stats = p[Dot11ProbeReq].network_stats() ssid = str(stats['ssid']) channel = None if "channel" in stats: channel = stats['channel'] print(f"[ProbReq ] {info}") print(f"ssid = {ssid}, channel ={channel}") #rate= {rates} sniff(iface="wlan1", prn=handler, store=0) 
There are a few things that should be taken into consideration when dealing with your problem. First, the OUI used by the netaddr 1.3.0 package is outdated. I have an iPhone 16 with OUI 0C-85-E1. You can check directly in IEEE or here that it is a valid OUI, but it's not updated in the netaddr source. You can solve this problem using another approach to get OUI info from the web. oui = src_mac[:8].upper().replace(":", "-") try: response = requests.get(f"https://api.macvendors.com/{oui}") if response.status_code == 200: macf = response.text else: macf = "Not available" except Exception as e: macf = "Not available"  But here there's the second problem. Apple uses a private Wi-Fi addresses security functionality that prevents from showing the real OUI on all requests, including probe requests. Check here when this option is off:  And when it's on:  You can check that OUI 6E-BA-4F it's invalid. Android has a similar function too. So you will have the same problem. If your clients use this function there is no way to determine the vendor based on OUI from probe requests.