Introduction to Data Communication for Linux Users
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Internet Protocol Address Space

The listed address blocks are for Class A IP addresses.

Address Block	Registry - Purpose			Date

000		IANA - Reserved				Sep 81
001		IANA - Reserved				Sep 81
002		IANA - Reserved				Sep 81
003		General Electric Company		May 94
004		Bolt Beranek and Newman Inc.		Dec 92
005		IANA - Reserved				Jul 95
006		Army Information Systems Center		Feb 94
007		IANA - Reserved				Apr 95
008		Bolt Beranek and Newman Inc.		Dec 92
009		IBM					Aug 92
010		IANA - Private Use			Jun 95
011		DoD Intel Information Systems		May 93
012		AT&T Bell Laboratories			Jun 95
013		Xerox Corporation			Sep 91
014		IANA - Public Data Network		Jun 91
015		Hewlett-Packard Company			Jul 94
016		Digital Equipment Corporation		Nov 94
017		Apple Computer Inc.			Jul 92
018		MIT					Jan 94
019		Ford Motor Company			May 95
020		Computer Sciences Corporation		Oct 94
021		DDN-RVN					Jul 91
022		Defense Information Systems Agency	May 93
023		IANA - Reserved				Jul 95
024		IANA - Cable Block			Jul 95
025		Royal Signals and Radar Establishment	Jan 95
026		Defense Information Systems Agency	May 95
027		IANA - Reserved				Apr 95
028		DSI-North				Jul 92
029		Defense Information Systems Agency	Jul 91
030		Defense Information Systems Agency	Jul 91
031		IANA - Reserved				Apr 99
032		Norsk Informasjonsteknologi		Jun 94
033		DLA Systems Automation Center		Jan 91
034		Halliburton Company			Mar 93
035		MERIT Computer Network			Apr 94
036		Stanford University			Apr 93
037		IANA - Reserved				Apr 95
038		Performance Systems International	Sep 94
039		IANA - Reserved				Apr 95
040		Eli Lily and Company			Jun 94
041		IANA - Reserved				May 95
042		IANA - Reserved				Jul 95
043		Japan Inet				Jan 91
044		Amateur Radio Digital Communications	Jul 92
045		Interop Show Network			Jan 95
046		Bolt Beranek and Newman Inc.		Dec 92
047		Bell-Northern Research			Jan 91
048		Prudential Securities Inc.		May 95
049		Joint Technical Command			May 94 Returned to IANA Mar 98
050		Joint Technical Command			May 94 Returned to IANA Mar 98
051		Deparment of Social Security of UK	Aug 94
052		E.I. duPont de Nemours and Co., Inc.	Dec 91
053		Cap Debis CCS				Oct 93
054		Merck and Co., Inc.			Mar 92
055		Boeing Computer Services		Apr 95
056		U.S. Postal Service			Jun 94
057		SITA					May 95
058		IANA - Reserved				Sep 81
059		IANA - Reserved				Sep 81
060		IANA - Reserved				Sep 81
061		APNIC - Pacific Rim			Apr 97
062		RIPE NCC - Europe			Apr 97
063		ARIN					Apr 97
064		ARIN					Jul 99
065-095		IANA - Reserved				Sep 81
096-126		IANA - Reserved				Sep 81
127		IANA - Reserved				Sep 81
128-191		Various Registries 			May 93
192		Various Registries - MultiRegional	May 93
193		RIPE NCC - Europe			May 93
194		RIPE NCC - Europe			May 93
195		RIPE NCC - Europe			May 93
196		Various Registries			May 93
197		IANA - Reserved				May 93
198		Various Registries 			May 93
199		ARIN - North America 			May 93
200		ARIN - Central and South America	May 93
201		Reserved - Central and South America	May 93
202		APNIC - Pacific Rim			May 93
203		APNIC - Pacific Rim			May 93
204		ARIN - North America 			Mar 94
205		ARIN - North America 			Mar 94
206		ARIN - North America 			Apr 95
207		ARIN - North America 			Nov 95
208		ARIN - North America 			Apr 96
209		ARIN - North America			Jun 96
210		APNIC - Pacific Rim			Jun 96
211		APNIC - Pacific Rim			Jun 96
212          	RIPE NCC - Europe			Oct 97
213  	     	RIPE NCC - Europe                       Mar 99
214		US-DOD					Mar 98
215		US-DOD 					Mar 98
216     	ARIN - North America			Apr 98
217     	IANA - Reserved				Sep 81
218-223       	IANA - Reserved				Sep 81
224-239		IANA - Multicast			Sep 81
240-255		IANA - Reserved				Sep 81

Introduction to Data Communication for Linux Users
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