1. All IP Ranges
  2. 208.0.0.0/8
  3. 208.121.0.0/16
  4. AS39961  | 208.121.0.0/24

208.121.0.0/24

AS39961  ·  San Francisco Department of Telecommunications and Information Services

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Summary

Country United States
Domain sf.gov
ASN AS39961
Registry ARIN
ID CCSF

WHOIS Details

NetHandle:      NET-208-121-0-0-1
OrgID:          SFDTIS
Parent:         NET-208-0-0-0-0
NetName:        CCSF
NetRange:       208.121.0.0 - 208.121.255.255
NetType:        allocation
Comment:        Contact: dt.ops@sfgov.org Standard NOC hours are: 8:00
Comment:        a.m to 5:00 p.m. PST Business days. 415-581-7100
RegDate:        2006-05-11
Updated:        2021-12-14
Source:         ARIN


OrgID:          SFDTIS
OrgName:        San Francisco Department of Telecommunications and Information Services
CanAllocate:    
Street:         One South Van Ness Avenue
Street:         2nd Floor
City:           San Francisco
State/Prov:     CA
Country:        US
PostalCode:     94103
Comment:        Contact dt.ops@sfgov.org, 1-628-652-5100
RegDate:        2005-06-14
Updated:        2024-11-05
OrgAdminHandle: GRY9-ARIN
OrgTechHandle:  BELLB45-ARIN
OrgTechHandle:  GRY9-ARIN
OrgAbuseHandle: DTSEC-ARIN
OrgNOCHandle:   NOC3189-ARIN
Source:         ARIN


POCHandle:      DTSEC-ARIN
IsRole:         Y
LastName:       DT Security
FirstName:      
Street:         1 South Van Ness Avenue
Street:         #250
City:           San Francisco
State/Prov:     CA
Country:        US
PostalCode:     94103
RegDate:        2015-10-05
Updated:        2025-05-17
OfficePhone:    +1-628-652-5000
Mailbox:        cyberdefense@sfgov.org
Source:         ARIN


POCHandle:      BELLB45-ARIN
IsRole:         N
LastName:       Bell
FirstName:      Bradley
Street:         1 South Van Ness Ave, 2nd Floor
City:           San Francisco
State/Prov:     CA
Country:        US
PostalCode:     94103
RegDate:        2023-04-21
Updated:        2025-07-14
OfficePhone:    +1-949-216-0013
Mailbox:        brad.bell@sfgov.org
Source:         ARIN


POCHandle:      GRY9-ARIN
IsRole:         N
LastName:       Ybanez
FirstName:      Glacier
Street:         One South Van Ness Avenue
Street:         2nd floor
City:           San Francisco
State/Prov:     CA
Country:        US
PostalCode:     94103
RegDate:        2011-06-13
Updated:        2025-03-04
OfficePhone:    +1-415-716-8419
Mailbox:        glacier.ybanez@sf.gov
Source:         ARIN


POCHandle:      NOC3189-ARIN
IsRole:         Y
LastName:       Network Operations Center
FirstName:      
Street:         One South Van Ness
Street:         2nd Floor
City:           San Francisco
State/Prov:     CA
Country:        US
PostalCode:     94103
RegDate:        2008-08-01
Updated:        2026-01-06
OfficePhone:    +1-415-581-7170
Mailbox:        dt.ops@sfgov.org
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 208.121.0.0/16

No nearby ranges found.

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.
Useful for Cybersecurity
Read more

Pingable IPs

7 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
208.121.0.251 AS39961 San Francisco Department of Telecommunications and Information Services 5.47ms from San Jose, US

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
82.168.191.152 AS1136 KPN B.V. 1.37ms from Amsterdam, NL
107.201.62.88 AS7018 AT&T Enterprises, LLC 8.47ms from Chicago, US
68.51.30.104 AS7922 Comcast Cable Communications, LLC 11.11ms from Chicago, US
187.144.55.152 AS8151 UNINET 6.59ms from Guadalajara, MX
154.218.166.200 AS137951 ASLINE LIMITED 0.74ms from Hong Kong, HK
79.77.251.216 AS13285 TalkTalk Communications Limited 5.53ms from Manchester, GB
72.188.236.72 AS33363 Charter Communications, Inc 6.37ms from Orlando, US
121.82.209.216 AS17511 OPTAGE Inc. 3.80ms from Osaka, JP
81.249.147.216 AS3215 Orange S.A. 2.25ms from Paris, FR
1.99.216.232 AS4766 Korea Telecom 2.01ms from Seoul, KR
126.115.253.184 AS17676 SoftBank Corp. 6.46ms from Tokyo, JP
133.232.65.88 AS2514 NTT PC Communications, Inc. 19.20ms from Tokyo, JP
174.138.200.56 AS11814 Distributel Communications Limited 1.16ms from Toronto, CA
76.225.143.184 AS7018 AT&T Enterprises, LLC 19.17ms from Dallas, US
90.155.90.248 AS20712 Andrews & Arnold Ltd 1.60ms from London, GB
189.215.143.136 AS28554 Cablemas Telecomunicaciones SA de CV 10.17ms from Los Angeles, US
74.69.214.56 AS11351 Charter Communications Inc 11.44ms from New York City, US
69.206.48.200 AS12271 Charter Communications Inc 6.72ms from New York City, US
68.83.236.216 AS7922 Comcast Cable Communications, LLC 7.48ms from Piscataway, US
95.241.238.184 AS3269 Telecom Italia S.p.A. 8.79ms from Rende, IT
147.163.30.8 AS137 Consortium GARR 13.90ms from Rome, IT
197.203.99.104 AS36947 Telecom Algeria 12.30ms from Algiers, DZ
88.244.19.152 AS9121 Turk Telekomunikasyon Anonim Sirketi 11.70ms from Bursa, TR
207.213.187.56 AS7018 AT&T Enterprises, LLC 0.87ms from Dallas, US
14.157.119.168 AS4134 CHINANET-BACKBONE 4.50ms from Guangzhou, CN

Traceroute

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

$
traceroute -a -n -q1 -f2 208.121.0.251
traceroute to 208.121.0.251 (208.121.0.251): 64 hops max, 52 byte packets
2 [AS917] 209.209.57.3 0.896 ms
3 [AS969] 199.119.64.100 1.539 ms
4 [] 206.223.116.182 0.588 ms
Measurement taken from IPinfo ProbeNet in San Jose, US
On

What are IP address ranges?

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