Class C Networks - Block 4.21
4.0.0.0 - 4.255.255.255 BBN Planet (NET-SATNET)
4.21.0.0 - 4.21.0.255 Carnegie Institution of Washington at DC (NETBLK-CIWDC-0-10)
4.21.1.0 - 4.21.1.7 Pacific Trust Federal Credit Union (NETBLK-PTFCU-1-11)
4.21.1.16 - 4.21.1.31 Jenny Craig International (NETBLK-JENNYCRAIG-1-11)
4.21.1.64 - 4.21.1.127 SAIC (NETBLK-SAIC-1-05)
4.21.2.0 - 4.21.2.255 WebSphere (NETBLK-WEBSPHERE2-2-26)
4.21.32.0 - 4.21.39.255 Electronic Arts (NETBLK-EA2-32-27)
4.21.40.0 - 4.21.40.127 3Com Corporation (NETBLK-3COM2-40-05)
4.21.40.128 - 4.21.40.191 Creative Explosions Inc (NETBLK-CREATIVEX-40-14)
4.21.40.192 - 4.21.40.255 SSL Inc. (NETBLK-SSLINC-40-12)
4.21.41.0 - 4.21.41.255 Versant Object Technology, Inc. (NETBLK-VOTI-41-19)
4.21.42.0 - 4.21.42.255 American Electronics Association (NETBLK-AEA2-42-06)
4.21.43.0 - 4.21.43.255 City of Gilroy (NETBLK-COGILROY-43-12)
4.21.44.0 - 4.21.44.255 InterTrade Systems Corp. (NETBLK-INTERTRADE-44-12)
4.21.45.0 - 4.21.45.255 Picturetalk (NETBLK-PICTURE-45-25)
4.21.46.0 - 4.21.46.255 HYSEQ, Inc. (NETBLK-HYSEQ-46-19)
4.21.47.0 - 4.21.47.15 Service Metrics (NETBLK-SERVICEMET6-47-28)
4.21.48.0 - 4.21.50.255 HCL Technologies America, Inc. (NETBLK-HCL-48-08)
4.21.64.0 - 4.21.67.255 Economic Computer Systems/Staffnet (NETBLK-ECSINC-64-30)
4.21.68.8 - 4.21.68.15 National Academy Press (NETBLK-NAOS-68-27 )
4.21.68.16 - 4.21.68.31 Coopers + Lybrand, LLP (NETBLK-COOPERS6-68-15)
4.21.68.32 - 4.21.68.47 BG Technologies (NETBLK-BGTECH-68-20)
4.21.68.48 - 4.21.68.63 The Taylor company (NETBLK-TAYLORCO-68-09)
4.21.68.64 - 4.21.68.127 Bechtel Corp. - Consulting (NETBLK-BECHCON3-68-16)
4.21.68.192 - 4.21.68.255 Nadsys Inc. (NETBLK-NADSYS-68-12)
4.21.69.0 - 4.21.69.255 St. Vincent's Pallotti High School (NETBLK-PALLOTTI-69-03)
4.21.70.0 - 4.21.70.255 DC Water and Sewer Authority (NETBLK-DCWASA-70-15)
4.21.71.0 - 4.21.71.255 Communities in Schools Inc. (NETBLK-COMINSCHOOL-71-24)
4.21.72.0 - 4.21.75.255 Economic Computer Systems/Staffnet (NETBLK-ECSINC-72-04)
4.21.76.0 - 4.21.76.31 Techspan Inc. (NETBLK-TECHSPAN2-76-22 )
4.21.76.32 - 4.21.76.63 Mega Marketing Corp. (NETBLK-MEGAMKTG-76-09)
4.21.76.64 - 4.21.76.127 Sage Electronic Data Services (NETBLK-SAGE-76-11)
4.21.76.128 - 4.21.76.191 NiTek Metal Service Inc (NETBLK-NITEKMS-76-18)
4.21.76.192 - 4.21.76.255 LCMHA (NETBLK-LCMHA-76-23)
4.21.78.0 - 4.21.78.255 Ten Four US Inc (NETBLK-TENFOUR-78-27)
4.21.79.0 - 4.21.79.255 Nadsys Inc. (NETBLK-NADSYS-79-27)
4.21.80.0 - 4.21.85.255 PressCom Inc (NETBLK-PRESSCOM-80-23)
4.21.86.0 - 4.21.86.255 The Urban Institute (NETBLK-TUI-86-02)
4.21.87.0 - 4.21.87.7 Coldwater Creek (NETBLK-COWACRE-87-15)
4.21.87.8 - 4.21.87.15 Management Systems Designers Inc (NETBLK-MSDI-87-06)
4.21.87.16 - 4.21.87.23 NMP Inc. (NETBLK-NMP-87-03)
4.21.87.24 - 4.21.87.31 Appnet (NETBLK-APPNETDC4-87-16)
4.21.87.32 - 4.21.87.63 Ducor Inc dba FloTec (NETBLK-DUCOR2-87-29)
4.21.87.64 - 4.21.87.127 M2 Direct (NETBLK-M2D5-87-23)
4.21.87.128 - 4.21.87.159 Young + Associates (NETBLK-YASSOC-87-07)
4.21.87.192 - 4.21.87.207 Sumter County School District 17 (NETBLK-SCSCHOOL-87-13)
4.21.87.208 - 4.21.87.223 Spinnaker Coatings (NETBLK-SPINNAKER-87-16)
4.21.87.224 - 4.21.87.239 Dyncorp Tech Services (NETBLK-DYNCORPIA-87-09)
4.21.87.240 - 4.21.87.255 Dyncorp Tech Services (NETBLK-DYNCORPIA2-87-09)
4.21.88.0 - 4.21.91.255 Economic Computer Systems/Staffnet (NETBLK-ECSINC-88-24)
4.21.95.0 - 4.21.95.255 Coldwater Creek (NETBLK-COWACRE-95-09)
4.21.96.0 - 4.21.96.15 Smart Route Systems (NETBLK-SMARTROUTE4-96-02)
4.21.96.16 - 4.21.96.31 American Hospital Association (NETBLK-AMERHOSP3-96-15)
4.21.96.128 - 4.21.96.255 Metro Offices (NETBLK-MO-96-09)
4.21.97.0 - 4.21.97.255 LTS Corporation (NETBLK-LTSCORP-97-24)
4.21.99.0 - 4.21.99.255 Howard University (NETBLK-HOW2-99-02)
4.21.100.0 - 4.21.100.127 Comtex Scientific Corporation (NETBLK-COMTEX-100-20)
4.21.128.0 - 4.21.128.255 Dewey Ballantine (NETBLK-DBALLANTINE-128-25)
4.21.129.0 - 4.21.129.15 Collegiate Funding Services (NETBLK-COLLFUNDSER-129-01)
4.21.129.16 - 4.21.129.23 Appnet (NETBLK-APPNETDC-129-16)
4.21.129.32 - 4.21.129.47 Fannie Mae (NETBLK-FANNIE-129-09)
4.21.129.48 - 4.21.129.63 Dyncorp Tech Services (NETBLK-DYNCORPIA3-129-09)
4.21.129.128 - 4.21.129.255 Appnet (NETBLK-APPNETDC-129-04)
4.21.132.0 - 4.21.134.255 Witley Satellite Services LLC (NETBLK-WITLEYLLC-132-05)
4.21.136.0 - 4.21.137.255 Strayer College (NETBLK-STRAYER-136-09)
4.21.138.0 - 4.21.138.255 Saturn 5 Net Services, Inc. (NETBLK-SATURNFIVE2-138-14)
4.21.151.0 - 4.21.151.255 EEI Communications (NETBLK-EEICOM3-151-27)
4.21.152.0 - 4.21.152.127 Torrent Networking (NETBLK-TORRENT-152-16)
4.21.160.0 - 4.21.160.7 Ardent Software, Inc. (NETBLK-ARDENT-160-10)
4.21.160.8 - 4.21.160.15 Espanol.Com (NETBLK-ESPANOL-160-30)
4.21.160.16 - 4.21.160.31 Firefly Technologies (NETBLK-FIREFLY-160-08)
4.21.160.32 - 4.21.160.47 C & M Corporation (NETBLK-CMCORP4-160-16)
4.21.160.48 - 4.21.160.63 MarketMax Inc. (NETBLK-MARKETMAX-160-01)
4.21.160.64 - 4.21.160.127 Fleet Services Corporation (NETBLK-FLEET2-160-08)
4.21.160.128 - 4.21.160.255 Firefly Technologies (NETBLK-FIREFLY-160-23)
4.21.161.0 - 4.21.161.255 Appnet (NETBLK-APPNETBOS-161-04)
4.21.162.0 - 4.21.163.255 College of the Holy Cross (NETBLK-HOLYCROSS-162-04)
4.21.164.0 - 4.21.164.63 One World Software Solutions (NETBLK-ONEWORLD-164-07)
4.21.164.64 - 4.21.164.127 adDirect.com (NETBLK-ADDIRECT-164-17)
4.21.164.128 - 4.21.164.159 Lexra, Inc. (NETBLK-LEXRA-164-22)
4.21.192.0 - 4.21.192.63 Computron (NETBLK-COMPUTRON-192-24)
4.21.192.64 - 4.21.192.95 America II Corporation (NETBLK-AMERCORP-192-30)
4.21.192.96 - 4.21.192.127 Jack Sieling (NETBLK-SIELING-192-16 )
4.21.192.128 - 4.21.192.191 James Hammett (NETBLK-HAMMETT-192-03)
4.21.192.192 - 4.21.192.207 Manatee County Clerk of Circuit C (NETBLK-MANATEECCCC-192-14)
4.21.192.208 - 4.21.192.223 Florin Roebig (NETBLK-FLORINROEBIG-192-10)
4.21.192.224 - 4.21.192.255 Y-Tech Solutions Inc (NETBLK-YTECH-192-16)
4.21.193.0 - 4.21.193.127 PhoneWorks Inc. (NETBLK-PHWORK-193-06 )
4.21.193.128 - 4.21.193.159 RR Simmons Construction (NETBLK-RRSIMMONS-193-08)
4.21.193.160 - 4.21.193.191 Watson Publications (NETBLK-WATSONPUB-193-12)
4.21.193.192 - 4.21.193.255 NACM Inc (NETBLK-NACM-193-13)
4.21.194.0 - 4.21.194.127 Fin-Tech Inc. (NETBLK-FINTECH-194-19 )
4.21.194.128 - 4.21.194.191 Williams Reed Weinstein Schifino (NETBLK-WMREEDWS-194-20)
4.21.194.192 - 4.21.194.223 GTE Video Services (NETBLK-GTEVIDEO2-194-20)
4.21.194.224 - 4.21.194.231 Alley and Ingram (NETBLK-ALLEYING-194-14)
4.21.194.240 - 4.21.194.255 Konover Property Trust (NETBLK-KONPROPTRUS-194-21)
4.21.195.0 - 4.21.195.255 Computer Management Consultants (NETBLK-COMANCO-195-19)
4.21.196.0 - 4.21.196.63 Proven Edge (NETBLK-PROVEDGE-196-21)
4.21.196.64 - 4.21.196.95 Tampa Sports Authority (NETBLK-TAMSPORT-196-22)
4.21.196.96 - 4.21.196.127 Kessler Rehab Management Systems (NETBLK-KESREHMANSYS-196-04)
4.21.196.128 - 4.21.196.255 M2 Direct (NETBLK-M2D3-196-23)
4.21.197.0 - 4.21.197.63 Echo Financial (NETBLK-ECHO-197-30)
4.21.197.64 - 4.21.197.127 CrossGeneration Comics Inc. (NETBLK-CROSSGEN-197-21)
4.21.197.128 - 4.21.197.191 GTE Video Services (NETBLK-GTEVIDEO2-197-18)
4.21.197.192 - 4.21.197.223 PhoneWorks Inc. (NETBLK-PHWORK-197-27)
4.21.197.224 - 4.21.197.255 Lafarge Florida Inc (NETBLK-LAFARGEFL-197-01)
4.21.198.0 - 4.21.199.255 Soflo Internet Services Corp. (NETBLK-SOFLOIS-198-06)
4.21.200.0 - 4.21.200.255 Computron (NETBLK-COMPUTRON-200-17 )
4.21.201.0 - 4.21.201.255 City of Lake Wales (NETBLK-COLKWLS-201-19)
4.21.202.0 - 4.21.202.127 The Salvation Army (NETBLK-SA-TAMPA-202-13)
4.21.202.128 - 4.21.202.191 Manco Of Tampa Bay Inc. (NETBLK-MANTAMBAY-202-18)
4.21.202.192 - 4.21.202.223 Sawyer + Finn (NETBLK-SAWYERFINN-202-23)
4.21.202.224 - 4.21.202.255 ComputerMax Inc (NETBLK-COMPUTERMAX-202-14)
4.21.203.0 - 4.21.203.255 Romac International (NETBLK-ROMAC-203-02)
4.21.204.0 - 4.21.204.255 DTIN (NETBLK-DTIN-204-07)
4.21.205.0 - 4.21.205.255 ComputerMax Inc (NETBLK-COMPUTERMAX-205-09)
4.21.206.0 - 4.21.206.255 Eckerd College (NETBLK-ECK-206-10)
4.21.208.0 - 4.21.208.255 ABR Benefit Services Inc. (NETBLK-ABR2-208-22)
4.21.209.0 - 4.21.209.127 Santa Fe Catholic High School (NETBLK-SFCATHOLIC-209-23)
4.21.209.128 - 4.21.209.255 Sarasota Memorial Hospital (NETBLK-SMH-209-14)
4.21.210.0 - 4.21.211.255 Universal Connections Group (NETBLK-UNIVERSAL-210-24)
4.21.212.0 - 4.21.212.255 Halkey Roberts (NETBLK-HALKEY-212-25)
4.21.213.0 - 4.21.213.31 Advanced Knowledge Systems (NETBLK-ADVKNOWL-213-20)
4.21.213.32 - 4.21.213.63 Girls Inc of Lakeland (NETBLK-GIRLSINC-213-28)
4.21.213.64 - 4.21.213.127 Amscot Corporation (NETBLK-AMSCOT-213-03)
4.21.213.128 - 4.21.213.159 Florida Central Credit Union (NETBLK-FLORIDACENTRAL-213-27)
4.21.213.160 - 4.21.213.175 LandNSea (NETBLK-LANDNSEA-213-05)
4.21.213.176 - 4.21.213.191 Finser Corporation (NETBLK-FINSERCORP-213-06)
4.21.213.192 - 4.21.213.255 Information System Planning (NETBLK-ISPA-213-27)
4.21.214.0 - 4.21.215.255 Lifecare Technologist Inc. (NETBLK-LIFECARE-214-12)
4.21.216.0 - 4.21.221.255 Digital Systems Management (NETBLK-DIGSYSMAN-216-26)
4.21.222.0 - 4.21.222.31 Blacktieforum.com (NETBLK-BLACKTIEFORUM-222-03)
4.21.222.64 - 4.21.222.127 Saint Joseph's Catholic School (NETBLK-STJCS-222-24)
4.21.222.128 - 4.21.222.255 DEGC Enterprise Inc. (NETBLK-DEGC-222-10)
4.21.223.0 - 4.21.223.127 Xanatos Enterprises Inc. (NETBLK-XANATOS-223-21)
4.21.223.128 - 4.21.223.255 Designer Bytes (NETBLK-DBYTESINC-223-01)
4.21.224.0 - 4.21.224.255 Advanced Orthopedics (NETBLK-ADVORTHO-224-03)
4.21.225.0 - 4.21.225.127 DOS Broadcast & Appraisal Services (NETBLK-IAIG-225-09)
4.21.226.0 - 4.21.226.255 Eaglenet Data Communications, Inc. (NETBLK-EAGLENET-226-09)
4.21.227.0 - 4.21.232.255 Interactive Multimedia Corporation (NETBLK-INTERACTMM2-227-15)
4.21.233.0 - 4.21.233.255 Jim Elsenbeck (NETBLK-JELSENBECK-233-19)
4.21.234.0 - 4.21.234.255 M2 Direct (NETBLK-M2D2-234-23)
4.21.235.0 - 4.21.240.255 Interactive Multimedia Corporation (NETBLK-INTERACTMM2-235-29)
4.21.242.0 - 4.21.243.255 Zap Me (NETBLK-ZAPME3-242-05)
[Index Page],
[Class C],
[Block 4]