Autonomous system profile

Review registration details, announced prefixes, network relationships and historical snapshots.

AS3713

Announcement observedARIN

ICF International · ICFCONSULTINGGROUPINC

This profile is assembled from CHA.LA's normalized registration, routing and observation snapshots.

Last active9/29/2026, 10:56:51Snapshot expired

View network topology RDAP registration

ASN: AS3713
Registration country: United States
Name: ICF International
Abbreviation: ICFCONSULTINGGROUPINC
Registration date: 7/13/1994, 04:00:00
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
199.223.16.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
199.223.16.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
199.223.17.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
199.223.18.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
199.223.19.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
199.223.20.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
199.223.21.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
199.223.22.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
199.223.23.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
199.223.24.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
199.223.24.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
199.223.27.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
199.223.28.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
199.223.28.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
199.223.29.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
199.223.30.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
199.223.31.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid

BGP prefixes have no geographic country; the column is marked not applicable.

Registration and sources

Organization: ICF International
RIR: ARIN
Registration country: United States
Registration date: 7/13/1994, 04:00:00
Abuse contact: arin@icfi.com

Snapshot trend

9/29/2026, 10:56:5117 v42 v63 Upstream · 0 Uncertain

ASN route snapshotThis page reads collected ASN, prefix, relationship and history data. External interfaces are used for initial collection and scheduled refreshes.Source keys: cha-la-external-routing · iana-rdap-asn-bootstrap · rir-rdap-asn