AS19721 - MHN - Magellan Health Services, US

United States
AS Number
AS19721
AS Name
MHN
Org Name
Magellan Health Services
Country / Region
United States
Registry

arin

RegDate

2001-02-07

Updated

2026-06-05

AS19721 Looking Glass
IPv4Prefixes

14

IPv6Prefixes

0

IPv4 NUMs

8,192

IPv6 NUMs(/64)

0

CIDR Description IP Num
204.193.64.0/20
IRR Valid
MagellanBehavioralHealth 4096
204.193.64.0/19
IRR InValid
MagellanBehavioralHealth 8192
204.193.71.0/24
IRR Parent Valid
MagellanBehavioralHealth 256
204.193.72.0/24
IRR Parent Valid
MagellanBehavioralHealth 256
204.193.74.0/24
IRR Parent Valid
MagellanBehavioralHealth 256
204.193.75.0/24
IRR Parent Valid
MagellanBehavioralHealth 256
204.193.80.0/24
IRR Parent Valid
MagellanBehavioralHealth 256
204.193.80.0/20
IRR Valid
MagellanBehavioralHealth 4096
204.193.84.0/24
IRR Valid
MagellanBehavioralHealth 256
204.193.84.0/22
IRR InValid
MagellanBehavioralHealth 1024
204.193.85.0/24
IRR Valid
MagellanBehavioralHealth 256
204.193.86.0/23
IRR Valid
MagellanBehavioralHealth 512
204.193.88.0/24
IRR Parent Valid
MagellanBehavioralHealth 256
204.193.93.0/24
IRR Parent Valid
MagellanBehavioralHealth 256
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS3356 LEVEL3 - Level 3 Parent, LLC, US United States 28,864,512 81,626,398,720 IPv4 IPv4
AS49915 MEGAPORT - Megaport (UK) Limited, GB United Kingdom 34,048 3,080,192 IPv4 IPv4 
ASNumber:       19721
ASName:         MHN
ASHandle:       AS19721
RegDate:        2001-02-07
Updated:        2012-03-20
Ref:            https://rdap.arin.net/registry/autnum/19721

OrgID:          MHS-54
OrgName:        Magellan Health Services
CanAllocate:    
Street:         13736 Riverport Dr.
City:           Maryland Heights
State/Prov:     MO
Country:        US
PostalCode:     63043
RegDate:        2001-02-07
Updated:        2026-06-05
OrgAdminHandle  STLNE-ARIN
OrgTechHandle   HEAPB-ARIN
OrgTechHandle   STLNE-ARIN
OrgTechHandle   WEBBA33-ARIN
OrgAbuseHandle  HEAPB-ARIN
OrgAbuseHandle  STLNE-ARIN
OrgAbuseHandle  WEBBA33-ARIN
OrgNOCHandle    HEAPB-ARIN
OrgNOCHandle    STLNE-ARIN
OrgNOCHandle    WEBBA33-ARIN
OrgRoutingHandle HEAPB-ARIN
OrgRoutingHandle WEBBA33-ARIN
OrgDNSHandle    HEAPB-ARIN
OrgDNSHandle    WEBBA33-ARIN
Source:         ARIN

OrgTechHandleHandle:  HEAPB-ARIN
OrgTechHandleName:    Heap, Brandon
OrgTechHandlePhone:   +1-801-367-9127
OrgTechHandleEmail:   [email protected]
OrgTechHandleRef:     https://rdap.arin.net/registry/entity/HEAPB-ARIN

OrgTechHandleHandle:  STLNE-ARIN
OrgTechHandleName:    stlnetengineering, 
OrgTechHandlePhone:   +1-314-387-4000
OrgTechHandleEmail:   [email protected]
OrgTechHandleRef:     https://rdap.arin.net/registry/entity/STLNE-ARIN

OrgTechHandleHandle:  WEBBA33-ARIN
OrgTechHandleName:    Webb, Arron
OrgTechHandlePhone:   +1-832-622-0113
OrgTechHandleEmail:   [email protected]
OrgTechHandleRef:     https://rdap.arin.net/registry/entity/WEBBA33-ARIN

OrgAbuseHandleHandle:  HEAPB-ARIN
OrgAbuseHandleName:    Heap, Brandon
OrgAbuseHandlePhone:   +1-801-367-9127
OrgAbuseHandleEmail:   [email protected]
OrgAbuseHandleRef:     https://rdap.arin.net/registry/entity/HEAPB-ARIN

OrgAbuseHandleHandle:  STLNE-ARIN
OrgAbuseHandleName:    stlnetengineering, 
OrgAbuseHandlePhone:   +1-314-387-4000
OrgAbuseHandleEmail:   [email protected]
OrgAbuseHandleRef:     https://rdap.arin.net/registry/entity/STLNE-ARIN

OrgAbuseHandleHandle:  WEBBA33-ARIN
OrgAbuseHandleName:    Webb, Arron
OrgAbuseHandlePhone:   +1-832-622-0113
OrgAbuseHandleEmail:   [email protected]
OrgAbuseHandleRef:     https://rdap.arin.net/registry/entity/WEBBA33-ARIN

OrgNOCHandleHandle:  HEAPB-ARIN
OrgNOCHandleName:    Heap, Brandon
OrgNOCHandlePhone:   +1-801-367-9127
OrgNOCHandleEmail:   [email protected]
OrgNOCHandleRef:     https://rdap.arin.net/registry/entity/HEAPB-ARIN

OrgNOCHandleHandle:  STLNE-ARIN
OrgNOCHandleName:    stlnetengineering, 
OrgNOCHandlePhone:   +1-314-387-4000
OrgNOCHandleEmail:   [email protected]
OrgNOCHandleRef:     https://rdap.arin.net/registry/entity/STLNE-ARIN

OrgNOCHandleHandle:  WEBBA33-ARIN
OrgNOCHandleName:    Webb, Arron
OrgNOCHandlePhone:   +1-832-622-0113
OrgNOCHandleEmail:   [email protected]
OrgNOCHandleRef:     https://rdap.arin.net/registry/entity/WEBBA33-ARIN

OrgRoutingHandleHandle:  HEAPB-ARIN
OrgRoutingHandleName:    Heap, Brandon
OrgRoutingHandlePhone:   +1-801-367-9127
OrgRoutingHandleEmail:   [email protected]
OrgRoutingHandleRef:     https://rdap.arin.net/registry/entity/HEAPB-ARIN

OrgRoutingHandleHandle:  WEBBA33-ARIN
OrgRoutingHandleName:    Webb, Arron
OrgRoutingHandlePhone:   +1-832-622-0113
OrgRoutingHandleEmail:   [email protected]
OrgRoutingHandleRef:     https://rdap.arin.net/registry/entity/WEBBA33-ARIN

OrgDNSHandleHandle:  HEAPB-ARIN
OrgDNSHandleName:    Heap, Brandon
OrgDNSHandlePhone:   +1-801-367-9127
OrgDNSHandleEmail:   [email protected]
OrgDNSHandleRef:     https://rdap.arin.net/registry/entity/HEAPB-ARIN

OrgDNSHandleHandle:  WEBBA33-ARIN
OrgDNSHandleName:    Webb, Arron
OrgDNSHandlePhone:   +1-832-622-0113
OrgDNSHandleEmail:   [email protected]
OrgDNSHandleRef:     https://rdap.arin.net/registry/entity/WEBBA33-ARIN

OrgAdminHandleHandle:  STLNE-ARIN
OrgAdminHandleName:    stlnetengineering, 
OrgAdminHandlePhone:   +1-314-387-4000
OrgAdminHandleEmail:   [email protected]
OrgAdminHandleRef:     https://rdap.arin.net/registry/entity/STLNE-ARIN

RTechHandleHandle:  DB1528-ARIN
RTechHandleName:    Brack, David
RTechHandlePhone:   +1-314-387-4055
RTechHandleEmail:   [email protected]
RTechHandleRef:     https://rdap.arin.net/registry/entity/DB1528-ARIN