Autonomous System details

AS401999

Fairfax County NCR  ·  fairfaxcounty.gov

United States
    Stub AS Icon Stub AS

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AS401999 – Fairfax County NCR

Field Value
Country United States
Website fairfaxcounty.gov
Hosted domains 0
IPv4 addresses 512
IPv6 addresses 0
ASN type Government
Registry arin
Allocated 7 months ago on Sep 19, 2025
Updated 7 months ago on Sep 19, 2025

IP Ranges

Netblock Company Num of IPs
76.9.155.0/24 Fairfax County NCR 256
76.9.156.0/24 Fairfax County NCR 256

There are no known IPv6 addresses belonging to this network

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WHOIS Details

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                                                ASHandle:       AS401999
                                                OrgID:          AS401999
                                                ASName:         AS401999
                                                ASNumber:       AS401999
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are no domains currently hosted on this ASN.

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Peers

There is 1 peer for this ASN.

Peers Name
AS6939 Hurricane Electric LLC
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ASN API & Database

Upstreams

There is 1 peer for this ASN.

upstreams Name
AS6939 Hurricane Electric LLC
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Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

No IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
104.54.205.111 AS7018 AT&T Enterprises, LLC 7.84ms from Dallas, US
91.39.232.47 AS3320 Deutsche Telekom AG 2.96ms from Frankfurt am Main, DE
119.17.113.255 AS23563 SK Broadband Co Ltd 1.86ms from Incheon, KR
79.10.181.239 AS3269 Telecom Italia S.p.A. 6.89ms from Milan, IT
24.46.133.111 AS6128 Cablevision Systems Corp. 9.44ms from New York City, US
152.166.24.47 AS28118 ALTICE DOMINICANA S.A. 8.51ms from Santo Domingo, DO
52.221.91.15 AS16509 Amazon.com, Inc. 0.15ms from Singapore, SG
222.154.68.95 AS4771 Spark New Zealand Trading Ltd. 8.34ms from Auckland, NZ
217.230.50.47 AS3320 Deutsche Telekom AG 6.38ms from Duesseldorf, DE
79.201.114.15 AS3320 Deutsche Telekom AG 7.13ms from Frankfurt am Main, DE
160.124.81.239 AS132839 POWER LINE DATACENTER 1.44ms from Hong Kong, HK
103.183.61.47 AS4800 PT Aplikanusa Lintasarta 1.50ms from Jakarta, ID
79.145.192.63 AS3352 TELEFONICA DE ESPANA S.A.U. 10.34ms from Madrid, ES
2.234.125.143 AS12874 Fastweb SpA 10.35ms from Milan, IT
79.5.250.255 AS3269 Telecom Italia S.p.A. 4.25ms from Milan, IT
79.11.160.79 AS3269 Telecom Italia S.p.A. 7.49ms from Milan, IT
134.0.97.223 AS29124 Iskratelecom JSC 0.87ms from Moscow, RU
52.95.198.159 AS16509 Amazon.com, Inc. 0.24ms from Seoul, KR
115.23.253.63 AS4766 Korea Telecom 1.70ms from Seoul, KR
112.74.55.63 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 1.52ms from Shenzhen, CN
203.180.41.175 AS2497 Internet Initiative Japan Inc. 3.27ms from Tokyo, JP
140.78.195.31 AS1205 University Linz 3.08ms from Vienna, AT
17.253.73.31 AS6185 Apple Inc. 0.28ms from Berlin, DE
96.28.94.191 AS10796 Charter Communications Inc 15.85ms from Columbus, US
76.84.189.175 AS11427 Charter Communications Inc 19.67ms from Dallas, US

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

$
traceroute -a -n -q1 -f2 -m9 76.9.155.75
traceroute to 76.9.155.75 (76.9.155.75): 9 hops max, 52 byte packets
2 [AS43060] 94.158.57.92 0.775 ms
3 *
4 *
5 *
7 *
8 *
9 *
Measurement taken from IPinfo ProbeNet in Tashkent, UZ
On

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS401999 at robtex.

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