The Autonomous System (AS) number 18573 is assigned to MCI Communications Services, Inc. d/b/a Verizon Business. AS18573 is assigned on 2000-09-13 by the Regional Internet Registry arin. The country of registration is United States. No domains are hosted on AS18573. No name servers are hosted on AS18573. There are 5 IPv4 prefixes announced by AS18573. Examples of prefixes are 220.127.116.11/23 and 18.104.22.168/24. There are no IPv6 prefixes announced by AS18573.
|AS number||18573 (AS18573 / ASN18573)|
|Organization||MCI Communications Services, Inc. d/b/a Verizon Business|
|Country||United States (US)|
|Allocation date||2000-09-13 by ARIN|
|Number of IPv4 addresses||3,328|
|ASRank (based on number of IPs)||17,679|
|Number of IP prefixes||5 (IPv4) 0 (IPv6)|
|AS has bogon prefixes||No|
|Number of peers||1 (IPv4) 0 (IPv6)|
|Number of domains hosted||0|
|Number of adult domains hosted||0|
|Number of name servers hosted||0|
|Number of SPAM hosts hosted||0|
|Number of open proxies hosted||0|
|Number of mail servers hosted||1|
|Number of IDN domains hosted||0|
|Number of domains in Alexa top million||0|
|22.214.171.124/23||US||MCI Communications Services, Inc. d/b/a Verizon Business|
|126.96.36.199/24||US||MCI Communications Services, Inc. d/b/a Verizon Business|
|188.8.131.52/23||US||MCI Communications Services, Inc. d/b/a Verizon Business|
|184.108.40.206/21||US||MCI (Trade Show Lab)|
|701||US||MCI Communications Services, Inc. d/b/a Verizon Business|
Number of prefixes and peers for the last 360 days.
|Mail Server||IPv4||#Domains on this mail server|
Number of domains, mail and name server hosted in the past on this AS.
Hosting history of domains break down by Top Level Domain (TLD) category.
AS Ranking history based on number of IPv4 addresses.
The AS/BGP Report is calculated for every allocated AS number. The report is updated on a weekly basis, last updated on 2019-01-13.
The underlying DNS data is updated every 3 weeks, the Whois data is cached for about one month.