diff --git a/src/sabp/SABP_Service-Area-Identifier.c b/src/sabp/SABP_Service-Area-Identifier.c
new file mode 100644
index 0000000..7c98288
--- /dev/null
+++ b/src/sabp/SABP_Service-Area-Identifier.c
@@ -0,0 +1,174 @@
+/*
+ * Generated by asn1c-0.9.28 (http://lionet.info/asn1c)
+ * From ASN.1 module "SABP-IEs"
+ * 	found in "../../asn1/sabp/SABP-IEs.asn"
+ */
+
+#include <osmocom/sabp/SABP_Service-Area-Identifier.h>
+
+static int
+memb_pLMNidentity_constraint_1(asn_TYPE_descriptor_t *td, const void *sptr,
+			asn_app_constraint_failed_f *ctfailcb, void *app_key) {
+	const OCTET_STRING_t *st = (const OCTET_STRING_t *)sptr;
+	size_t size;
+	
+	if(!sptr) {
+		_ASN_CTFAIL(app_key, td, sptr,
+			"%s: value not given (%s:%d)",
+			td->name, __FILE__, __LINE__);
+		return -1;
+	}
+	
+	size = st->size;
+	
+	if((size == 3l)) {
+		/* Constraint check succeeded */
+		return 0;
+	} else {
+		_ASN_CTFAIL(app_key, td, sptr,
+			"%s: constraint failed (%s:%d)",
+			td->name, __FILE__, __LINE__);
+		return -1;
+	}
+}
+
+static int
+memb_lac_constraint_1(asn_TYPE_descriptor_t *td, const void *sptr,
+			asn_app_constraint_failed_f *ctfailcb, void *app_key) {
+	const OCTET_STRING_t *st = (const OCTET_STRING_t *)sptr;
+	size_t size;
+	
+	if(!sptr) {
+		_ASN_CTFAIL(app_key, td, sptr,
+			"%s: value not given (%s:%d)",
+			td->name, __FILE__, __LINE__);
+		return -1;
+	}
+	
+	size = st->size;
+	
+	if((size == 2l)) {
+		/* Constraint check succeeded */
+		return 0;
+	} else {
+		_ASN_CTFAIL(app_key, td, sptr,
+			"%s: constraint failed (%s:%d)",
+			td->name, __FILE__, __LINE__);
+		return -1;
+	}
+}
+
+static int
+memb_sac_constraint_1(asn_TYPE_descriptor_t *td, const void *sptr,
+			asn_app_constraint_failed_f *ctfailcb, void *app_key) {
+	const OCTET_STRING_t *st = (const OCTET_STRING_t *)sptr;
+	size_t size;
+	
+	if(!sptr) {
+		_ASN_CTFAIL(app_key, td, sptr,
+			"%s: value not given (%s:%d)",
+			td->name, __FILE__, __LINE__);
+		return -1;
+	}
+	
+	size = st->size;
+	
+	if((size == 2l)) {
+		/* Constraint check succeeded */
+		return 0;
+	} else {
+		_ASN_CTFAIL(app_key, td, sptr,
+			"%s: constraint failed (%s:%d)",
+			td->name, __FILE__, __LINE__);
+		return -1;
+	}
+}
+
+static asn_per_constraints_t asn_PER_memb_pLMNidentity_constr_2 GCC_NOTUSED = {
+	{ APC_UNCONSTRAINED,	-1, -1,  0,  0 },
+	{ APC_CONSTRAINED,	 0,  0,  3l,  3l }	/* (SIZE(3..3)) */,
+	0, 0	/* No PER value map */
+};
+static asn_per_constraints_t asn_PER_memb_lac_constr_3 GCC_NOTUSED = {
+	{ APC_UNCONSTRAINED,	-1, -1,  0,  0 },
+	{ APC_CONSTRAINED,	 0,  0,  2l,  2l }	/* (SIZE(2..2)) */,
+	0, 0	/* No PER value map */
+};
+static asn_per_constraints_t asn_PER_memb_sac_constr_4 GCC_NOTUSED = {
+	{ APC_UNCONSTRAINED,	-1, -1,  0,  0 },
+	{ APC_CONSTRAINED,	 0,  0,  2l,  2l }	/* (SIZE(2..2)) */,
+	0, 0	/* No PER value map */
+};
+static asn_TYPE_member_t asn_MBR_SABP_Service_Area_Identifier_1[] = {
+	{ ATF_NOFLAGS, 0, offsetof(struct SABP_Service_Area_Identifier, pLMNidentity),
+		(ASN_TAG_CLASS_CONTEXT | (0 << 2)),
+		-1,	/* IMPLICIT tag at current level */
+		&asn_DEF_OCTET_STRING,
+		memb_pLMNidentity_constraint_1,
+		&asn_PER_memb_pLMNidentity_constr_2,
+		0,
+		"pLMNidentity"
+		},
+	{ ATF_NOFLAGS, 0, offsetof(struct SABP_Service_Area_Identifier, lac),
+		(ASN_TAG_CLASS_CONTEXT | (1 << 2)),
+		-1,	/* IMPLICIT tag at current level */
+		&asn_DEF_OCTET_STRING,
+		memb_lac_constraint_1,
+		&asn_PER_memb_lac_constr_3,
+		0,
+		"lac"
+		},
+	{ ATF_NOFLAGS, 0, offsetof(struct SABP_Service_Area_Identifier, sac),
+		(ASN_TAG_CLASS_CONTEXT | (2 << 2)),
+		-1,	/* IMPLICIT tag at current level */
+		&asn_DEF_OCTET_STRING,
+		memb_sac_constraint_1,
+		&asn_PER_memb_sac_constr_4,
+		0,
+		"sac"
+		},
+};
+static const ber_tlv_tag_t asn_DEF_SABP_Service_Area_Identifier_tags_1[] = {
+	(ASN_TAG_CLASS_UNIVERSAL | (16 << 2))
+};
+static const asn_TYPE_tag2member_t asn_MAP_SABP_Service_Area_Identifier_tag2el_1[] = {
+    { (ASN_TAG_CLASS_CONTEXT | (0 << 2)), 0, 0, 0 }, /* pLMNidentity */
+    { (ASN_TAG_CLASS_CONTEXT | (1 << 2)), 1, 0, 0 }, /* lac */
+    { (ASN_TAG_CLASS_CONTEXT | (2 << 2)), 2, 0, 0 } /* sac */
+};
+static asn_SEQUENCE_specifics_t asn_SPC_SABP_Service_Area_Identifier_specs_1 = {
+	sizeof(struct SABP_Service_Area_Identifier),
+	offsetof(struct SABP_Service_Area_Identifier, _asn_ctx),
+	asn_MAP_SABP_Service_Area_Identifier_tag2el_1,
+	3,	/* Count of tags in the map */
+	0, 0, 0,	/* Optional elements (not needed) */
+	-1,	/* Start extensions */
+	-1	/* Stop extensions */
+};
+asn_TYPE_descriptor_t asn_DEF_SABP_Service_Area_Identifier = {
+	"SABP_Service-Area-Identifier",
+	"SABP_Service-Area-Identifier",
+	SEQUENCE_free,
+	SEQUENCE_print,
+	SEQUENCE_constraint,
+	SEQUENCE_decode_ber,
+	SEQUENCE_encode_der,
+	SEQUENCE_decode_xer,
+	SEQUENCE_encode_xer,
+	SEQUENCE_decode_uper,
+	SEQUENCE_encode_uper,
+	SEQUENCE_decode_aper,
+	SEQUENCE_encode_aper,
+	0,	/* Use generic outmost tag fetcher */
+	asn_DEF_SABP_Service_Area_Identifier_tags_1,
+	sizeof(asn_DEF_SABP_Service_Area_Identifier_tags_1)
+		/sizeof(asn_DEF_SABP_Service_Area_Identifier_tags_1[0]), /* 1 */
+	asn_DEF_SABP_Service_Area_Identifier_tags_1,	/* Same as above */
+	sizeof(asn_DEF_SABP_Service_Area_Identifier_tags_1)
+		/sizeof(asn_DEF_SABP_Service_Area_Identifier_tags_1[0]), /* 1 */
+	0,	/* No PER visible constraints */
+	asn_MBR_SABP_Service_Area_Identifier_1,
+	3,	/* Elements count */
+	&asn_SPC_SABP_Service_Area_Identifier_specs_1	/* Additional specs */
+};
+