This is full world OID database published for internet users
| Node | Name | Sub children | Sub Nodes Total | Description | Information |
|---|---|---|---|---|---|
| 0 | itu-t, ccitt | 7 | 10360 | International Telecommunications Union - Telecommunication standardization sector (ITU-T) | Subsequent OIDs identify ITU-T Recommendations (not jointly published with ISO/IEC) and ITU members. This arc is also called ccitt(0) to recall that CCITT used to be an organization independent from ITU-T.Identifier itu-r was added by ITU-T Study Group 17 in March 2004 (and was ratified by ISO/IEC JTC 1/SC 6 in Sep 2005). It can only be used as a 'NameAndNumberForm' (that is, followed by number 5 between parentheses) for OIDs that commence with {itu-r(0) r-recommendation(5)} (see Rec. ITU-T X.680 | ISO/IEC 9834-1, clause A.5, for more details on this specific case). Consequently Unicode label ITU-R can only be used for "OID-IRIs" that designate OIDs under the {itu-r(0) r-recommendation(5)} arc.Operation is in accordance with Rec. ITU-T X.660 | ISO/IEC 9834-1 and is under the guidance of ITU-T Study Group 17. All decisions related to subsequent arcs, other than the assignment of additional secondary identifiers to top-level arc 0 (see Rec. ITU-T X.660 | ISO/IEC 9834-1, clause A.5), will be recorded ad amendments to Rec. ITU-T X.660 | ISO/IEC 9834-1 (such changes to the joint ITU-T | ISO/IEC text will be regarded as editorial by ISO).From Rec. ITU-T X.660 | ISO/IEC 9834-1, "the top-level arcs are restricted to three arcs numbered 0 to 2; and the arcs beneath root arcs 0 and 1 are restricted to forty arcs numbered 0 to 39. This enables optimized encodings to be used in which the values of the top two arcs for all arcs under top-level arcs 0 and 1 encode in a single octet in an object identifier encoding (see the Rec. ITU-T X.690 series | ISO/IEC 8825 multi-part Standard). |
| 1 | iso | 4 | 992195 | International Organization for Standardization (ISO) | This arc is for International Standards and ISO Member Bodies. Operation of this arc is in accordance with Rec. ITU-T X.660 | ISO/IEC 9834-1 "Procedures for the operation of object identifier registration authorities: General procedures and top arcs of the international object identifier tree". All decisions related to subsequent arcs, other than the assignment of additional secondary identifiers to top-level arc 1 (see Rec. ITU-T X.660 (2004) | ISO/IEC 9834-1:2004, A.5), will be recorded as amendments to Rec. ITU-T X.660 | ISO/IEC 9834-1 (such changes to the common text will be regarded as editorial by ITU-T).From Rec. ITU-T X.660 (2004) | ISO/IEC 9834-1:2004, "the top-level arcs are restricted to three arcs numbered 0 to 2; and the arcs beneath root arcs 0 and 1 are restricted to forty arcs numbered 0 to 39. This enables optimized encodings to be used in which the values of the top two arcs for all arcs under top-level arcs 0 and 1 encode in a single octet in an object identifier encoding (see the Rec. ITU-T X.690 series | ISO/IEC 8825 multi-part Standard). |
| 2 | joint-iso-itu-t, joint-iso-ccitt | 38 | 25835 | Common standardization area of ISO/IEC (International Organization for Standardization/International Electrotechnical Commission) and ITU-T (International Telecommunications Union - Telecommunication standardization sector) | This OID was allocated by Rec. ITU-T X.660 | ISO/IEC 9834-1. This OID is jointly administered by ISO and ITU-T according to Rec. ITU-T X.662 | ISO/IEC 9834-3 "Procedures for the Operation of OSI Registration Authorities: Registration of Object Identifier Arcs for Joint ISO and ITU-T Work". As a consequence, all requests for registration must be jointly approved by ITU-T Study Group 17 and ISO/IEC JTC 1/SC 6. Child OIDs are recorded in the Register of arcs beneath the root arc with primary integer value 2. New child OIDs will be allocated a number greater than 47, except if there is a good rationale that a compact binary encoding is needed, in which case a number less or equal to 47 can be allocated so that the OID encodes with a single octet. |