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AS20270 FIELD COMMUNICATIONS, INC.

Q: Why is WHOIS data shown for an ASN?

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

ASN Lookup Tool

FIELD COMMUNICATIONS, INC. csky.net

US 2 Routes

AS Data

AS20270

AS20270 – FIELD COMMUNICATIONS, INC.

AS Number	20270
AS Name	CLEARSKY-SYSTEMS-INC
Organization	FIELD COMMUNICATIONS, INC.(fc-11)
Country	US
Website	csky.net
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2023-06-14

ASN Intelligence API for production workflows

Use ASN data for AS20270 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
12.233.2.0/24	AS20270	FIELD COMMUNICATIONS, INC.	FIELD COMMUNICATIONS, INC.	256
23.168.80.0/24	AS20270	FIELD COMMUNICATIONS, INC.	FIELD COMMUNICATIONS, INC.	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:       20270
ASName:         CLEARSKY-SYSTEMS-INC
ASHandle:       AS20270
RegDate:        2023-06-14
Updated:        2023-06-14    
Ref:            https://rdap.arin.net/registry/autnum/20270


OrgName:        FIELD COMMUNICATIONS, INC.
OrgId:          FC-11
Address:        60 ROUTE 52
City:           MINOKA
StateProv:      IL
PostalCode:     60447
Country:        US
RegDate:        2011-05-21
Updated:        2024-11-25
Ref:            https://rdap.arin.net/registry/entity/FC-11


OrgTechHandle: NETWO8936-ARIN
OrgTechName:   Network Administration
OrgTechPhone:  +1-815-287-2500 
OrgTechEmail:  tech@csky.net
OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO8936-ARIN

OrgAbuseHandle: NETWO8936-ARIN
OrgAbuseName:   Network Administration
OrgAbusePhone:  +1-815-287-2500 
OrgAbuseEmail:  tech@csky.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO8936-ARIN

OrgNOCHandle: NETWO8936-ARIN
OrgNOCName:   Network Administration
OrgNOCPhone:  +1-815-287-2500 
OrgNOCEmail:  tech@csky.net
OrgNOCRef:    https://rdap.arin.net/registry/entity/NETWO8936-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
AS7018	AT&T Enterprises, LLC	US

Upstreams

AS Number	Description	Country
AS7018	AT&T Enterprises, LLC	US

Frequently Asked Questions

What is ASN AS20270?

ASN AS20270 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS20270?

AS20270 is listed under FIELD COMMUNICATIONS, INC..

What do peers, upstreams, and downstreams mean?

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 included here?

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

How can I access full ASN table data?

This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.