ASN AS18503 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS18503?

AS18503 is listed under Concept Imagineering LLC.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

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AS18503 Concept Imagineering LLC

ASN Lookup Tool

Concept Imagineering LLC conceptimagineering.com

US 1 Routes

AS Data

AS18503

AS18503 – Concept Imagineering LLC

AS Number	18503
AS Name	CTRL-IT-ASN
Organization	Concept Imagineering LLC (cil-242)
Country	US
Website	conceptimagineering.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2023-03-16

ASN Intelligence API for production workflows

Use ASN data for AS18503 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
199.34.241.0/24	AS18503	Concept Imagineering LLC	Concept Imagineering LLC	256

Raw Whois Response

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       18503
ASName:         CTRL-IT-ASN
ASHandle:       AS18503
RegDate:        2023-03-16
Updated:        2026-04-24
Comment:        -----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
Ref:            https://rdap.arin.net/registry/autnum/18503


OrgName:        Concept Imagineering LLC
OrgId:          CIL-242
Address:        50 S Beretania St
City:           Honolulu
StateProv:      HI
PostalCode:     96813
Country:        US
RegDate:        2020-12-03
Updated:        2020-12-03
Ref:            https://rdap.arin.net/registry/entity/CIL-242


OrgAbuseHandle: MMB19-ARIN
OrgAbuseName:   Benevides, Melvin Melvin
OrgAbusePhone:  +1-808-989-2735 
OrgAbuseEmail:  mbenevides@conceptimagineering.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/MMB19-ARIN

OrgNOCHandle: MMB19-ARIN
OrgNOCName:   Benevides, Melvin Melvin
OrgNOCPhone:  +1-808-989-2735 
OrgNOCEmail:  mbenevides@conceptimagineering.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/MMB19-ARIN

OrgTechHandle: MMB19-ARIN
OrgTechName:   Benevides, Melvin Melvin
OrgTechPhone:  +1-808-989-2735 
OrgTechEmail:  mbenevides@conceptimagineering.com
OrgTechRef:    https://rdap.arin.net/registry/entity/MMB19-ARIN

OrgDNSHandle: MMB19-ARIN
OrgDNSName:   Benevides, Melvin Melvin
OrgDNSPhone:  +1-808-989-2735 
OrgDNSEmail:  mbenevides@conceptimagineering.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/MMB19-ARIN

OrgRoutingHandle: MMB19-ARIN
OrgRoutingName:   Benevides, Melvin Melvin
OrgRoutingPhone:  +1-808-989-2735 
OrgRoutingEmail:  mbenevides@conceptimagineering.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/MMB19-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.arin.net",
  "aut_nums" : [ {
    "aut_num" : "18503",
    "as_handle" : "AS18503",
    "as_name" : "CTRL-IT-ASN",
    "admin_contacts" : [ "MMB19-ARIN" ],
    "tech_contacts" : [ "MMB19-ARIN", "MMB19-ARIN" ],
    "abuse_contacts" : [ "MMB19-ARIN" ],
    "date_created" : "2023-03-16",
    "date_updated" : "2026-04-24",
    "source" : "https://rdap.arin.net/registry/autnum/18503"
  } ],
  "organization" : {
    "handle" : "CIL-242",
    "name" : "Concept Imagineering LLC",
    "address" : [ "50 S Beretania St", "Honolulu", "HI", "96813", "US" ],
    "street" : "S Beretania St",
    "city" : "Honolulu",
    "state" : "HI",
    "zip_code" : "96813",
    "country" : [ "US" ],
    "date_created" : "2020-12-03",
    "date_updated" : "2020-12-03",
    "source" : "https://rdap.arin.net/registry/entity/CIL-242",
    "addressCountry" : "US"
  },
  "administrative_contacts" : [ {
    "handle" : "MMB19-ARIN",
    "name" : "Benevides, Melvin Melvin",
    "email" : [ "mbenevides@conceptimagineering.com" ],
    "phone" : [ "+1-808-989-2735" ],
    "source" : "https://rdap.arin.net/registry/entity/MMB19-ARIN"
  } ],
  "technical_contacts" : [ {
    "handle" : "MMB19-ARIN",
    "name" : "Benevides, Melvin Melvin",
    "email" : [ "mbenevides@conceptimagineering.com" ],
    "phone" : [ "+1-808-989-2735" ],
    "source" : "https://rdap.arin.net/registry/entity/MMB19-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "MMB19-ARIN",
    "name" : "Benevides, Melvin Melvin",
    "email" : [ "mbenevides@conceptimagineering.com" ],
    "phone" : [ "+1-808-989-2735" ],
    "source" : "https://rdap.arin.net/registry/entity/MMB19-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS16509	Amazon.com, Inc.	US

Upstreams

AS Number	Description	Country
AS16509	Amazon.com, Inc.	US