ASN AS19545 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS19545?

AS19545 is listed under SITA Information Networking Computing USA, Inc..

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?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS19545 SITA Information Networking Computing USA, Inc.

ASN Lookup Tool

SITA Information Networking Computing USA, Inc. sita.aero

US 5 Routes

AS Data

AS19545

AS19545 – SITA Information Networking Computing USA, Inc.

AS Number	19545
AS Name	SITA-NGDC-ATL
Organization	SITA Information Networking Computing USA, Inc.(sitai-2)
Country	US
Website	sita.aero
Number of IPv4 Routes	5
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2010-07-30

ASN Intelligence API for production workflows

Use ASN data for AS19545 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

Get ASN API Key ASN API Docs

IP Ranges

Route	Origin	Origin Name	ISP	# IPs
57.250.221.0/24	AS19545	SITA Information Networking Computing USA, Inc.	Societe Internationale de Telecommunications Aeronautiques	256
57.250.192.0/21	AS19545	SITA Information Networking Computing USA, Inc.	Societe Internationale de Telecommunications Aeronautiques	2048
57.250.224.0/24	AS19545	SITA Information Networking Computing USA, Inc.	Societe Internationale de Telecommunications Aeronautiques	256
57.250.223.0/24	AS19545	SITA Information Networking Computing USA, Inc.	Societe Internationale de Telecommunications Aeronautiques	256
57.250.192.0/20	AS19545	SITA Information Networking Computing USA, Inc.	Societe Internationale de Telecommunications Aeronautiques	4096

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:       19545
ASName:         SITA-NGDC-ATL
ASHandle:       AS19545
RegDate:        2010-07-30
Updated:        2025-09-01    
Ref:            https://rdap.arin.net/registry/autnum/19545


OrgName:        SITA Information Networking Computing USA, Inc.
OrgId:          SITAI-2
Address:        3100 Cumberland Blvd, STE 900
City:           Atlanta
StateProv:      GA
PostalCode:     30339
Country:        US
RegDate:        2010-02-16
Updated:        2024-10-09
Comment:        https://www.sita.aero/
Ref:            https://rdap.arin.net/registry/entity/SITAI-2


OrgTechHandle: DIETR49-ARIN
OrgTechName:   Dietrich, Thomas 
OrgTechPhone:  +4122 747 6863 
OrgTechEmail:  Thomas.Dietrich@sita.aero
OrgTechRef:    https://rdap.arin.net/registry/entity/DIETR49-ARIN

OrgTechHandle: WTT1-ARIN
OrgTechName:   Tse, Winter Tse
OrgTechPhone:  +1-604-453-1050 
OrgTechEmail:  winter.tse@sita.aero
OrgTechRef:    https://rdap.arin.net/registry/entity/WTT1-ARIN

OrgAbuseHandle: DIETR49-ARIN
OrgAbuseName:   Dietrich, Thomas 
OrgAbusePhone:  +4122 747 6863 
OrgAbuseEmail:  Thomas.Dietrich@sita.aero
OrgAbuseRef:    https://rdap.arin.net/registry/entity/DIETR49-ARIN

RTechHandle: WTT1-ARIN
RTechName:   Tse, Winter Tse
RTechPhone:  +1-604-453-1050 
RTechEmail:  winter.tse@sita.aero
RTechRef:    https://rdap.arin.net/registry/entity/WTT1-ARIN

RNOCHandle: ASSOC3-ARIN
RNOCName:   ATLDC Systems Support Operations Center
RNOCPhone:  +1-770-612-4762 
RNOCEmail:  ATLDC.Systems.Support.Operations.Center@sita.aero
RNOCRef:    https://rdap.arin.net/registry/entity/ASSOC3-ARIN

RAbuseHandle: ASSOC3-ARIN
RAbuseName:   ATLDC Systems Support Operations Center
RAbusePhone:  +1-770-612-4762 
RAbuseEmail:  ATLDC.Systems.Support.Operations.Center@sita.aero
RAbuseRef:    https://rdap.arin.net/registry/entity/ASSOC3-ARIN

RAbuseHandle: SITAA-ARIN
RAbuseName:   SITA-ABUSE-POC
RAbusePhone:  +41 22 747 6000 
RAbuseEmail:  abuse@sita.aero
RAbuseRef:    https://rdap.arin.net/registry/entity/SITAA-ARIN

RTechHandle: ANST-ARIN
RTechName:   ATLDC Network Support Team
RTechPhone:  +1-770-850-4500 
RTechEmail:  GlobalDC.Network.Engineering@SITA.aero
RTechRef:    https://rdap.arin.net/registry/entity/ANST-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

Peers

AS Number	Description	Country
AS1239	Cogent Communications, LLC	US
AS174	Cogent Communications, LLC	US

Upstreams

AS Number	Description	Country
AS174	Cogent Communications, LLC	US