| 0000-05DC | IEEE 802.3 Length Field |
| 0101-01FF | Experimental |
| 200 | XEROX PUP (see 0A00) |
| 201 | PUP Addr Trans (see 0A01) |
| 400 | Nixdorf |
| 600 | XEROX NS IDP |
| 660 | DLOG |
| 661 | DLOG |
| 800 | Internet IP (IPv4) |
| 801 | X.75 Internet |
| 802 | NBS Internet |
| 803 | ECMA Internet |
| 804 | Chaosnet |
| 805 | X.25 Level 3 |
| 806 | ARP |
| 807 | XNS Compatibility |
| 808 | Frame Relay ARP (RFC1701) |
| 081C | Symbolics Private |
| 0888-088A | Xyplex |
| 900 | Ungermann-Bass net debug |
| 0A00 | Xerox IEEE802.3 PUP |
| 0A01 | PUP Address Translation |
| 0BAD | Banyan VINES |
| 0BAE | VINES Loopback (RFC1701) |
| 0BAF | VINES Echo (RFC1701) |
| 1000 | Berkeley Trailer negotiation |
| 1001-100F | Berkeley Trailer encapsulation/IP |
| 1600 | Valid Systems |
| 4242 | PCS Basic Block Protocol |
| 5208 | BBN Simnet |
| 6000 | DEC Unassigned (experimental) |
| 6001 | DEC MOP Dump/Load |
| 6002 | DEC MOP Remote Console |
| 6003 | DEC DECNET Phase IV Route |
| 6004 | DEC LAT |
| 6005 | DEC Diagnostic Protocol |
| 6006 | DEC Customer Protocol |
| 6007 | DEC LAVC, SCA |
| 6008-6009 | DEC Unassigned |
| 6010-6014 | 3Com Corporation |
| 6558 | Trans Ether Bridging (RFC1701) |
| 6559 | Raw Frame Relay (RFC1701) |
| 7000 | Ungermann-Bass download |
| 7002 | Ungermann-Bass dia/loop |
| 7020-7029 | LRT |
| 7030 | Proteon |
| 7034 | Cabletron |
| 8003 | Cronus VLN |
| 8004 | Cronus Direct |
| 8005 | HP Probe |
| 8006 | Nestar |
| 8008 | AT&T |
| 8010 | Excelan |
| 8013 | SGI diagnostics |
| 8014 | SGI network games |
| 8015 | SGI reserved |
| 8016 | SGI bounce server |
| 8019 | Apollo Domain |
| 802E | Tymshare |
| 802F | Tigan, Inc. |
| 8035 | Reverse ARP |
| 8036 | Aeonic Systems |
| 8038 | DEC LANBridge |
| 8039-803C | DEC Unassigned |
| 803D | DEC Ethernet Encryption |
| 803E | DEC Unassigned |
| 803F | DEC LAN Traffic Monitor |
| 8040-8042 | DEC Unassigned |
| 8044 | Planning Research Corp. |
| 8046 | AT&T |
| 8047 | AT&T |
| 8049 | ExperData |
| 805B | Stanford V Kernel exp. |
| 805C | Stanford V Kernel prod. |
| 805D | Evans & Sutherland |
| 8060 | Little Machines |
| 8062 | Counterpoint Computers |
| 8065 | Univ. of Mass. @ Amherst |
| 8066 | Univ. of Mass. @ Amherst |
| 8067 | Veeco Integrated Auto. |
| 8068 | General Dynamics |
| 8069 | AT&T |
| 806A | Autophon |
| 806C | ComDesign |
| 806D | Computgraphic Corp. |
| 806E-8077 | Landmark Graphics Corp. |
| 807A | Matra |
| 807B | Dansk Data Elektronik |
| 807C | Merit Internodal |
| 807D-807F | Vitalink Communications |
| 8080 | Vitalink TransLAN III |
| 8081-8083 | Counterpoint Computers |
| 809B | Appletalk |
| 809C-809E | Datability |
| 809F | Spider Systems Ltd. |
| 80A3 | Nixdorf Computers |
| 80A4-80B3 | Siemens Gammasonics Inc. |
| 80C0-80C3 | DCA Data Exchange Cluster |
| 80C4 | Banyan Systems |
| 80C5 | Banyan Systems |
| 80C6 | Pacer Software |
| 80C7 | Applitek Corporation |
| 80C8-80CC | Intergraph Corporation |
| 80CD-80CE | Harris Corporation |
| 80CF-80D2 | Taylor Instrument |
| 80D3-80D4 | Rosemount Corporation |
| 80D5 | IBM SNA Service on Ether |
| 80DD | Varian Associates |
| 80DE-80DF | Integrated Solutions TRFS |
| 80E0-80E3 | Allen-Bradley |
| 80E4-80F0 | Datability |
| 80F2 | Retix |
| 80F3 | AppleTalk AARP (Kinetics) |
| 80F4-80F5 | Kinetics |
| 80F7 | Apollo Computer |
| 80FF-8103 | Wellfleet Communications |
| 8107-8109 | Symbolics Private |
| 8130 | Hayes Microcomputers |
| 8131 | VG Laboratory Systems |
| 8132-8136 | Bridge Communications |
| 8137-8138 | Novell, Inc. |
| 8139-813D | KTI |
| 8148 | Logicraft |
| 8149 | Network Computing Devices |
| 814A | Alpha Micro |
| 814C | SNMP |
| 814D | BIIN |
| 814E | BIIN |
| 814F | Technically Elite Concept |
| 8150 | Rational Corp |
| 8151-8153 | Qualcomm |
| 815C-815E | Computer Protocol Pty Ltd |
| 8164-8166 | Charles River Data System |
| 817D | XTP |
| 817E | SGI/Time Warner prop. |
| 8180 | HIPPI-FP encapsulation |
| 8181 | STP, HIPPI-ST |
| 8182 | Reserved for HIPPI-6400 |
| 8183 | Reserved for HIPPI-6400 |
| 8184-818C | Silicon Graphics prop. |
| 818D | Motorola Computer |
| 819A-81A3 | Qualcomm |
| 81A4 | ARAI Bunkichi |
| 81A5-81AE | RAD Network Devices |
| 81B7-81B9 | Xyplex |
| 81CC-81D5 | Apricot Computers |
| 81D6-81DD | Artisoft |
| 81E6-81EF | Polygon |
| 81F0-81F2 | Comsat Labs |
| 81F3-81F5 | SAIC |
| 81F6-81F8 | VG Analytical |
| 8203-8205 | Quantum Software |
| 8221-8222 | Ascom Banking Systems |
| 823E-8240 | Advanced Encryption System |
| 827F-8282 | Athena Programming |
| 8263-826A | Charles River Data System |
| 829A-829B | Inst Ind Info Tech |
| 829C-82AB | Taurus Controls |
| 82AC-8693 | Walker Richer & Quinn |
| 8694-869D | Idea Courier |
| 869E-86A1 | Computer Network Tech |
| 86A3-86AC | Gateway Communications |
| 86DB | SECTRA |
| 86DE | Delta Controls |
| 86DD | IPv6 |
| 86DF | ATOMIC |
| 86E0-86EF | Landis & Gyr Powers |
| 8700-8710 | Motorola |
| 876B | TCP/IP Compression (RFC1144) |
| 876C | IP Autonomous Systems (RFC1701) |
| 876D | Secure Data (RFC1701) |
| 880B | PPP |
| 8847 | MPLS Unicast |
| 8848 | MPLS Multicast |
| 8A96-8A97 | Invisible Software |
| 9000 | Loopback |
| 9001 | 3Com(Bridge) XNS Sys Mgmt |
| 9002 | 3Com(Bridge) TCP-IP Sys |
| 9003 | 3Com(Bridge) loop detect |
| FF00 | BBN VITAL-LanBridge cache |
| FF00-FF0F | ISC Bunker Ramo |
| FFFF | Reserved (RFC1701) |