| Port No. | Protocol | Service | Description |
| 300-307 | tcp/udp | # | Unassigned |
| 308 | tcp/udp | novastorbakcup | Novastor Backup |
| 309 | tcp/udp | entrusttime | EntrustTime |
| 310 | tcp/udp | bhmds | bhmds |
| 311 | tcp/udp | asip-webadmin | AppleShare IP WebAdmin |
| 312 | tcp/udp | vslmp | VSLMP |
| 313 | tcp/udp | magenta-logic | Magenta Logic |
| 314 | tcp/udp | opalis-robot | Opalis Robot |
| 315 | tcp/udp | dpsi | DPSI |
| 316 | tcp/udp | decauth | decAuth |
| 317 | tcp/udp | zannet | Zannet |
| 318 | tcp/udp | pkix-timestamp | PKIX TimeStamp |
| 319 | tcp/udp | ptp-event | PTP Event |
| 320 | tcp/udp | ptp-general | PTP General |
| 321 | tcp/udp | pip | PIP |
| 322 | tcp/udp | rtsps | RTSPS |
| 323-332 | tcp/udp | # | Unassigned |
| 333 | tcp/udp | texar | Texar Security Port |
| 334-343 | tcp/udp | # | Unassigned |
| 334 |
tcp |
# |
Backage |
| 335 |
tcp/udp |
# |
W32.HLLW.Nautic |
| 344 | tcp/udp | pdap | Prospero Data Access Protocol |
| 345 | tcp/udp | pawserv | Perf Analysis Workbench |
| 346 | tcp/udp | zserv | Zebra server |
| 347 | tcp/udp | fatserv | Fatmen Server |
| 348 | tcp/udp | csi-sgwp | Cabletron Management Protocol |
| 349 | tcp/udp | mftp | mftp |
| 350 | tcp/udp | matip-type-a | MATIP Type A |
| 351 | tcp/udp | matip-type-b | MATIP Type B |
| 351 | tcp | bhoetty | bhoetty (added 5/21/97) |
| 351 | udp | bhoetty | bhoetty |
| 352 | tcp | dtag-ste-sb | DTAG (assigned long ago) |
| 352 | udp | dtag-ste-sb | DTAG |
| 352 | tcp | bhoedap4 | bhoedap4 (added 5/21/97) |
| 352 | udp | bhoedap4 | bhoedap4 |
| 353 | tcp/udp | ndsauth | NDSAUTH |
| 354 | tcp/udp | bh611 | bh611 |
| 355 | tcp/udp | datex-asn | DATEX-ASN |
| 356 | tcp/udp | cloanto-net-1 | Cloanto Net 1 |
| 357 | tcp/udp | bhevent | bhevent |
| 358 | tcp/udp | shrinkwrap | Shrinkwrap |
| 359 | tcp/udp | nsrmp | Network Security Risk Management Protocol |
| 360 | tcp/udp | scoi2odialog | scoi2odialog |
| 361 | tcp/udp | semantix | Semantix |
| 362 | tcp/udp | srssend | SRS Send |
| 363 | tcp/udp | rsvp_tunnel | RSVP Tunnel |
| 364 | tcp/udp | aurora-cmgr | Aurora CMGR |
| 365 | tcp/udp | dtk | DTK |
| 366 | tcp/udp | odmr | ODMR |
| 367 | tcp/udp | mortgageware | MortgageWare |
| 368 | tcp/udp | qbikgdp | QbikGDP |
| 369 | tcp/udp | rpc2portmap | rpc2portmap |
| 370 | tcp/udp | codaauth2 | codaauth2 |
| 371 | tcp/udp | clearcase | Clearcase |
| 371 |
udp |
# |
BackWeb
"push" servers use this port on UDP. |
| 372 | tcp/udp | ulistproc | ListProcessor |
| 373 | tcp/udp | legent-1 | Legent Corporation |
| 374 | tcp/udp | legent-2 | Legent Corporation |
| 375 | tcp/udp | hassle | Hassle |
| 376 | tcp/udp | nip | Amiga Envoy Network Inquiry Proto |
| 377 | tcp/udp | tnETOS | NEC Corporation |
| 378 | tcp/udp | dsETOS | NEC Corporation |
| 379 | tcp/udp | is99c | TIA/EIA/IS-99 modem client |
| 380 | tcp/udp | is99s | TIA/EIA/IS-99 modem server |
| 381 | tcp/udp | hp-collector | hp performance data collector |
| 382 | tcp/udp | hp-managed-node | hp performance data managed node |
| 382 |
tcp/udp |
# |
W32.Rotor |
| 383 | tcp/udp | hp-alarm-mgr | hp performance data alarm manager |
| 384 | tcp/udp | arns | A Remote Network Server System |
| 385 | tcp/udp | ibm-app | IBM Application |
| 386 | tcp/udp | asa | ASA Message Router Object Def. |
| 387 | tcp/udp | aurp | Appletalk Update-Based Routing Pro. |
| 388 | tcp/udp | unidata-ldm | Unidata LDM |
| 389 | tcp/udp | ldap | Lightweight Directory Access Protocol |
| 390 | tcp/udp | uis | UIS |
| 391 | tcp/udp | synotics-relay | SynOptics SNMP Relay Port |
| 392 | tcp/udp | tcp/udp | synotics-broker |
| 393 | tcp/udp | meta5 | Meta5 |
| 394 | tcp/udp | embl-ndt | EMBL Nucleic Data Transfer |
| 395 | tcp/udp | netcp | NETscout Control Protocol |
| 396 | tcp/udp | netware-ip | Novell Netware over IP |
| 397 | tcp/udp | mptn | Multi Protocol Trans. Net. |
| 398 | tcp/udp | kryptolan | Kryptolan |
| 399 | tcp/udp | iso-tsap-c2 | ISO Transport Class 2 Non-Control over TCP |