Internet Assigned Numbers Authority

Signaling User Adaptation Layer Assignments

Created
2002-08-12
Last Updated
2011-12-01
Available Formats

XML
HTML
Plain text

Registries included below

Message Classes

Registration Procedure(s)
IETF Review
Reference
[RFC3057][RFC4233]
Available Formats

CSV
Value Description Reference
0 Management (MGMT) Message [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3057]
1 Transfer Messages [RFC4666]
2 SS7 Signalling Network Management (SSNM) Messages [RFC4666][RFC3868]
3 ASP State Maintenance (ASPSM) Messages [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3057]
4 ASP Traffic Maintenance (ASPTM) Messages [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3057]
5 Q.921/Q.931 Boundary Primitives Transport (QPTM) Messages [RFC4233]
6 MTP2 User Adaptation (MAUP) Messages [RFC3331]
7 Connectionless Messages [RFC3868]
8 Connection-Oriented Messages [RFC3868]
9 Routing Key Management (RKM) Messages [RFC4666]
10 Interface Identifier Management (IIM) Messages [RFC3331]
11 M2PA Messages [RFC4165]
12 Security Messages [RFC3788]
13 DPNSS/DASS2 Boundary Primitives Transport Messages [RFC4129]
14 V5 Boundary Primitives Transport Messages (V5PTM) [RFC3807]
15-127 Unassigned
128-255 Reserved for IETF-Defined Message Class extensions

Message Types - Management (MGMT) Message (Value 0)

Registration Procedure(s)
IETF Review
Reference
[RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3057]
Available Formats

CSV
Value Description Reference
0 Error (ERR) [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3057]
1 Notify (NTFY) [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3057]
2 TEI Status Request [RFC4233][RFC3057]
3 TEI Status Confirm [RFC4233][RFC3057]
4 TEI Status Indication [RFC4233][RFC3057]
5 DLC Status Request [RFC4129]
6 DLC Status Confirm [RFC4129]
7 DLC Status Indication [RFC4129]
8 TEI Query Request [RFC5133][RFC4233]
9-127 Unassigned
128-255 Reserved for IETF-Defined MGMT extensions

Message Types - Transfer Messages (Value 1)

Registration Procedure(s)
IETF Review
Reference
[RFC4666]
Available Formats

CSV
Value Description Reference
0 Reserved [RFC4666]
1 Payload Data (DATA) [RFC4666]
2-127 Unassigned
128-255 Reserved for IETF-Defined Transfer extensions

Message Types - SS7 Signalling Network Management (SSNM) Messages (Value 2)

Registration Procedure(s)
IETF Review
Reference
[RFC4666][RFC3868]
Available Formats

CSV
Value Description Reference
0 Reserved [RFC4666][RFC3868]
1 Destination Unavailable (DUNA) [RFC4666][RFC3868]
2 Destination Available (DAVA) [RFC4666][RFC3868]
3 Destination State Audit (DAUD) [RFC4666][RFC3868]
4 Signalling Congestion (SCON) [RFC4666][RFC3868]
5 Destination User Part Unavailable (DPU) [RFC4666][RFC3868]
6 Destination Restricted (DRST) [RFC4666][RFC3868]
7-127 Reserved by the IETF
128-255 Reserved for IETF-Defined SSNM extensions

Message Types - ASP State Maintenance (ASPSM) Messages (Value 3)

Registration Procedure(s)
IETF Review
Reference
[RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3057]
Available Formats

CSV
Value Description Reference
0 Reserved [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3057]
1 ASP Up (UP) [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3057]
2 ASP Down (DOWN) [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3057]
3 Heartbeat (BEAT) [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3057]
4 ASP Up Ack (UP ACK) [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3057]
5 ASP Down Ack (DOWN ACK) [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3057]
6 Heartbeat Ack (BEAT ACK) [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3057]
7-127 Unassigned
128-255 Reserved for IETF-Defined ASPSM extensions

Message Types - ASP Traffic Maintenance (ASPTM) Messages (Value 4)

Registration Procedure(s)
IETF Review
Reference
[RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3057]
Available Formats

CSV
Value Description Reference
0 Reserved [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3057]
1 ASP Active (ACTIVE) [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3057]
2 ASP Inactive (INACTIVE) [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3057]
3 ASP Active Ack (ACTIVE ACK) [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3057]
4 ASP Inactive Ack (INACTIVE ACK) [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3057]
5-127 Unassigned
128-255 Reserved for IETF-Defined ASPTM extensions

Message Types - Q.921/Q.931 Boundary Primitives Transport (QPTM) Messages (Value 5)

Registration Procedure(s)
IETF Review
Reference
[RFC4233]
Available Formats

CSV
Value Description Reference
0 Reserved [RFC4233]
1 Data Request Message [RFC4233]
2 Data Indication Message [RFC4233]
3 Unit Data Request Message [RFC4233]
4 Unit Data Indication Message [RFC4233]
5 Establish Request [RFC4233]
6 Establish Confirm [RFC4233]
7 Establish Indication [RFC4233]
8 Release Request [RFC4233]
9 Release Confirm [RFC4233]
10 Release Indication [RFC4233]
11-127 Unassigned
128-255 Reserved for IETF-Defined QPTM extensions

Message Types - MTP2 User Adaptation (MAUP) Messages (Value 6)

Registration Procedure(s)
IETF Review
Reference
[RFC3331]
Available Formats

CSV
Value Description Reference
0 Reserved [RFC3331]
1 Data [RFC3331]
2 Establish Request [RFC3331]
3 Establish Confirm [RFC3331]
4 Release Request [RFC3331]
5 Release Confirm [RFC3331]
6 Release Indication [RFC3331]
7 State Request [RFC3331]
8 State Confirm [RFC3331]
9 State Indication [RFC3331]
10 Data Retrieval Request [RFC3331]
11 Data Retrieval Confirm [RFC3331]
12 Data Retrieval Indication [RFC3331]
13 Data Retrieval Complete Indication [RFC3331]
14 Congestion Indication [RFC3331]
15 Data Acknowledge [RFC3331]
16-127 Unassigned
128-255 Reserved for IETF-Defined MAUP extensions

Message Types - Connectionless Messages (Value 7)

Registration Procedure(s)
IETF Review
Reference
[RFC3868]
Available Formats

CSV
Value Description Reference
0 Reserved [RFC3868]
1 Connectionless Data Transfer (CLDT) [RFC3868]
2 Connectionless Data Response (CLDR) [RFC3868]
3-127 Unassigned
128-255 Reserved for IETF-Defined Message Class Extensions

Message Types - Connection-Oriented Messages (Value 8)

Registration Procedure(s)
IETF Review
Reference
[RFC3868]
Available Formats

CSV
Value Description Reference
0 Reserved [RFC3868]
1 Connection Request (CORE) [RFC3868]
2 Connection Acknowledge (COAK) [RFC3868]
3 Connection Refused (COREF) [RFC3868]
4 Release Request (RELRE) [RFC3868]
5 Release Complete (RELCO) [RFC3868]
6 Reset Confirm (RESCO) [RFC3868]
7 Reset Request (RESRE) [RFC3868]
8 Connection Oriented Data Transfer (CODT) [RFC3868]
9 Connection Oriented Data Acknowledge (CODA) [RFC3868]
10 Connection Oriented Error (COERR) [RFC3868]
11 Inactivity Test (COIT) [RFC3868]
12-127 Unassigned
128-255 Reserved for IETF-Defined Message Class Extensions

Message Types - Routing Key Management (RKM) Messages (Value 9)

Registration Procedure(s)
IETF Review
Reference
[RFC4666]
Available Formats

CSV
Value Description Reference
0 Reserved [RFC4666][RFC3868]
1 Registration Request (REG REQ) [RFC4666][RFC3868]
2 Registration Response (REG RSP) [RFC4666][RFC3868]
3 Deregistration Request (DEREG REQ) [RFC4666][RFC3868]
4 Deregistration Response (DEREG RSP) [RFC4666][RFC3868]
5-127 Unassigned
128-255 Reserved for IETF-Defined RKM extensions

Message Types - Interface Identifier Management (IIM) Messages (Value 10)

Registration Procedure(s)
IETF Review
Reference
[RFC3331]
Available Formats

CSV
Value Description Reference
0 Reserved [RFC3331]
1 Registration Request (REG REQ) [RFC3331]
2 Registration Response (REG RSP) [RFC3331]
3 Deregistration Request (DEREG REQ) [RFC3331]
4 Deregistration Response (DEREG RSP) [RFC3331]
5-127 Unassigned
128-255 Reserved for IETF-Defined IIM extensions

Message Types - M2PA Messages (Value 11)

Registration Procedure(s)
IETF Review
Reference
[RFC4165]
Available Formats

CSV
Value Description Reference
1 User Data [RFC4165]
2 Link Status [RFC4165]

Message Types - Security Messages (Value 12)

Registration Procedure(s)
IETF Review
Reference
[RFC3788]
Available Formats

CSV
Value Description Reference
1 STARTTLS message [RFC3788]
2 STARTTLS_ACK message [RFC3788]

Message Types - DPNSS/DASS2 Boundary Primitives Transport Messages (Value 13)

Registration Procedure(s)
IETF Review
Reference
[RFC4129]
Available Formats

CSV
Value Description Reference
0 Reserved [RFC4129]
1 Data Request Message [RFC4129]
2 Data Indication Message [RFC4129]
3 Unit Data Request Message [RFC4129]
4 Unit Data Indication Message [RFC4129]
5 Establish Request [RFC4129]
6 Establish Confirm [RFC4129]
7 Establish Indication [RFC4129]
8 Release Request [RFC4129]
9 Release Confirm [RFC4129]
10 Release Indication [RFC4129]

Message Types - V5 Boundary Primitives Transport (V5PTM) Messages (Value 14)

Registration Procedure(s)
IETF Review
Reference
[RFC3807]
Available Formats

CSV
Value Description Reference
1 Data Request Message [RFC3807]
2 Data Indication Message [RFC3807]
3 Unit Data Request Message [RFC3807]
4 Unit Data Indication Message [RFC3807]
5 Establish Request [RFC3807]
6 Establish Confirm [RFC3807]
7 Establish Indication [RFC3807]
8 Release Request [RFC3807]
9 Release Confirm [RFC3807]
10 Release Indication [RFC3807]
11 Link Status Start Reporting [RFC3807]
12 Link Status Stop Reporting [RFC3807]
13 Link Status Indication [RFC3807]
14 Sa-Bit Set Request [RFC3807]
15 Sa-Bit Set Confirm [RFC3807]
16 Sa-Bit Status Request [RFC3807]
17 Sa-Bit Status Indication [RFC3807]
18 Error Indication [RFC3807]

Message Parameters

Registration Procedure(s)
IETF Review
Reference
[RFC3331][RFC4233][RFC4666]
Available Formats

CSV
Value Description Reference
0 Reserved [RFC4233][RFC3868][RFC3331]
1 Interface Identifier (Integer) [RFC4233][RFC3331][RFC4129][RFC3807]
2 Reserved [RFC4233]
3 Interface Identifier (Text) [RFC4233][RFC3331][RFC4129][RFC3807]
4 Info String [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
5 DLCI [RFC4233][RFC4129]
6 Routing Context [RFC4666][RFC3868]
7 Diagnostic Information [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
8 Interface Identifier (Integer Range) [RFC4233][RFC3331][RFC4129][RFC3807]
9 Heartbeat Data [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
10 Reason [RFC4129][RFC3807]
11 Traffic Mode Type [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
12 Error Code [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
13 Status Type/Information [RFC4233][RFC3331][RFC4666][RFC3868][RFC4129][RFC3807]
14 Protocol Data [RFC4233][RFC4129][RFC3807]
15 Release Reason [RFC4233][RFC4129][RFC3807]
16 Status [RFC4233][RFC4129][RFC3807]
17 ASP Identifier [RFC3331][RFC4666][RFC3868]
18 Affected Point Code [RFC4666][RFC3868]
19 Correlation Id [RFC3331][RFC4666][RFC3868]
20 Registration Result [RFC3868]
21 Deregistration Result [RFC3868]
22 Registration Status [RFC3868]
23 Deregistration Status [RFC3868]
24 Local Routing Key Identifier [RFC3868]
25-128 Unassigned
129 DLCI/EFA [RFC3807]
130 Link Status [RFC3807]
131 Bit ID/Bit Value [RFC3807]
132 Error Reason [RFC3807]
133-255 Unassigned
256 Unassigned
257 SS7 Hop Counter [RFC3868]
258 Source Address [RFC3868]
259 Destination Address [RFC3868]
260 Source Reference Number [RFC3868]
261 Destination Reference Number [RFC3868]
262 SCCP Cause [RFC3868]
263 Sequence Number [RFC3868]
264 Receive Sequence Number [RFC3868]
265 ASP Capabilities [RFC3868]
266 Credit [RFC3868]
267 Data [RFC3868]
268 Cause / User [RFC3868]
269 Network Appearance [RFC3868]
270 Routing Key [RFC3868]
271 DRN Label [RFC3868]
272 TID Label [RFC3868]
273 Address Range [RFC3868]
274 SMI [RFC3868]
275 Importance [RFC3868]
276 Message Priority [RFC3868]
277 Protocol Class [RFC3868]
278 Sequence Control [RFC3868]
279 Segmentation [RFC3868]
280 Congestion Level [RFC3868]
281-511 Unassigned
512 Network Appearance [RFC4666]
513 Reserved [RFC4666]
514 Reserved [RFC4666]
515 Reserved [RFC4666]
516 User/Cause [RFC4666]
517 Congestion Indications [RFC4666]
518 Concerned Destination [RFC4666]
519 Routing Key [RFC4666]
520 Registration Result [RFC4666]
521 Deregistration Result [RFC4666]
522 Local_Routing Key Identifier [RFC4666]
523 Destination Point Code [RFC4666]
524 Service Indicators [RFC4666]
525 Reserved [RFC4666]
526 Originating Point Code List [RFC4666]
527 Circuit Range [RFC4666]
528 Protocol Data [RFC4666]
529 Reserved [RFC4666]
530 Registration Status [RFC4666]
531 Deregistration Status [RFC4666]
532-767 Unassigned
768 Protocol Data 1 [RFC3331]
769 Protocol Data 2 (TTC) [RFC3331]
770 State Request [RFC3331]
771 State Event [RFC3331]
772 Congestion Status [RFC3331]
773 Discard Status [RFC3331]
774 Action [RFC3331]
775 Sequence Number [RFC3331]
776 Retrieval Result [RFC3331]
777 Link Key [RFC3331]
778 Local-LK-Identifier [RFC3331]
779 Signalling Data Terminal (SDT) Identifier [RFC3331]
780 Signalling Data Link (SDL) Identifier [RFC3331]
781 Registration Result [RFC3331]
782 Registration Status [RFC3331]
783 De-Registration Result [RFC3331]
784 De-Registration Status [RFC3331]
785-32768 Unassigned
32769 Global Title [RFC3868]
32770 Point Code [RFC3868]
32771 Subsystem Number [RFC3868]
32772 IPv4 Address [RFC3868]
32773 Hostname [RFC3868]
32774 IPv6 Addresses [RFC3868]
32775-65534 Unassigned
65535 Reserved [RFC4233]