AS23400 - SDC - Software Design Corporation, US

United States
AS Number
AS23400
AS Name
SDC
Org Name
Software Design Corporation
Country
United States
Registry

arin

RegDate

2026-02-25

Updated

2026-03-04

AS23400 Looking Glass
IPv4Prefixes

15

IPv6Prefixes

0

IPv4 NUMs

3,840

IPv6 NUMs(/64)

0

3,840 IPv4 Addresses
CIDR Description IP Num
63.247.96.0/24
IRR Valid
Software Design Corporation 256
63.247.97.0/24
IRR Valid
Software Design Corporation 256
63.247.98.0/24
IRR Valid
Software Design Corporation 256
63.247.99.0/24
IRR Valid
Software Design Corporation 256
63.247.100.0/24
IRR Valid
Software Design Corporation 256
63.247.101.0/24
IRR Valid
Software Design Corporation 256
63.247.102.0/24
IRR Valid
Software Design Corporation 256
63.247.103.0/24
IRR Valid
Software Design Corporation 256
63.247.104.0/24
IRR Valid
Software Design Corporation 256
63.247.105.0/24
IRR Valid
Software Design Corporation 256
63.247.106.0/24
IRR Valid
Software Design Corporation 256
63.247.107.0/24
IRR Valid
Software Design Corporation 256
63.247.108.0/24
IRR Valid
Software Design Corporation 256
63.247.109.0/24
IRR Valid
Software Design Corporation 256
63.247.111.0/24
IRR Valid
Software Design Corporation 256
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS1000 LINK-AMERICAN - LINK AMERICAN, US United States 256 0 IPv4 IPv4
AS3356 LEVEL3 - Level 3 Parent, LLC, US United States 28,876,544 81,609,621,504 IPv4 IPv4 
ASNumber:       23400
ASName:         SDC
ASHandle:       AS23400
RegDate:        2002-03-12
Updated:        2026-03-16
Ref:            https://rdap.arin.net/registry/autnum/23400


OrgName:        Software Design Corporation
OrgId:          SDC-227
Address:        P.O. BOX 2438
City:           SUGAR LAND
StateProv:      TX
PostalCode:     77487-2438
Country:        US
RegDate:        2026-02-25
Updated:        2026-03-04
Ref:            https://rdap.arin.net/registry/entity/SDC-227

ReferralServer:  rwhois://rwhois.softdsgn.com:4321

OrgTechHandle: SDCHO-ARIN
OrgTechName:   SDC Hostmaster
OrgTechPhone:  +1-281-494-7227 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/SDCHO-ARIN

OrgAbuseHandle: SDCHO-ARIN
OrgAbuseName:   SDC Hostmaster
OrgAbusePhone:  +1-281-494-7227 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/SDCHO-ARIN