208.121.128.0/17
AS39961 · San Francisco Department of Telecommunications and Information Services
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| 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: 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: 2026-03-04 OfficePhone: +1-415-716-8419 Mailbox: glacier.ybanez@sf.gov 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: 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 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
Hosted domains
There are 3 domain names hosted across 3 IP addresses on this ASN. Checkout our API to access full domain hosting information.
| IP Address | Domain | Domains on this IP |
|---|---|---|
| 208.121.200.26 | sfgov2.org | 1 |
| 208.121.200.108 | sfstudentintern.org | 1 |
| 208.121.200.107 | sfdpw.city | 1 |
Hosted domains API
Pingable IPs
106 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 208.121.200.30 |
2.16ms from San Jose,
US
|
|
| 208.121.242.220 |
1.87ms from San Jose,
US
|
|
| 208.121.203.251 |
1.92ms from San Jose,
US
|
|
| 208.121.202.10 |
2.54ms from Santa Clara,
US
|
|
| 208.121.226.22 |
5.73ms from San Jose,
US
|
|
| 208.121.201.120 |
2.26ms from San Jose,
US
|
|
| 208.121.255.2 |
1.93ms from San Jose,
US
|
|
| 208.121.224.180 |
5.84ms 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 |
|---|---|---|
| 71.171.96.1 |
2.10ms from Ashburn,
US
|
|
| 181.4.138.1 |
10.32ms from Asuncion,
PY
|
|
| 144.249.218.193 |
3.77ms from Atlanta,
US
|
|
| 98.185.8.193 |
0.39ms from Atlanta,
US
|
|
| 67.215.38.129 |
4.45ms from Boise,
US
|
|
| 191.7.64.177 |
15.99ms from Brasilia,
BR
|
|
| 34.76.107.97 |
0.14ms from Brussels,
BE
|
|
| 141.85.217.1 |
0.80ms from Bucharest,
RO
|
|
| 78.161.154.1 |
12.36ms from Bursa,
TR
|
|
| 181.214.128.1 |
0.05ms from Chapeco,
BR
|
|
| 223.86.149.161 |
7.86ms from Chengdu,
CN
|
|
| 96.11.195.17 |
1.92ms from Cleveland,
US
|
|
| 174.102.52.1 |
2.40ms from Cleveland,
US
|
|
| 65.22.245.17 |
0.12ms from Dallas,
US
|
|
| 68.11.164.1 |
11.77ms from Dallas,
US
|
|
| 204.134.155.1 |
0.92ms from Durham,
US
|
|
| 84.252.243.145 |
17.38ms from Erith,
GB
|
|
| 120.238.195.161 |
4.39ms from Guangzhou,
CN
|
|
| 117.187.133.17 |
0.46ms from Guiyang,
CN
|
|
| 60.160.58.1 |
12.15ms from Guiyang,
CN
|
|
| 193.94.41.1 |
1.00ms from Helsinki,
FI
|
|
| 141.239.168.1 |
0.56ms from Honolulu,
US
|
|
| 173.172.168.1 |
3.53ms from Houston,
US
|
|
| 212.64.193.65 |
0.42ms from Istanbul,
TR
|
|
| 202.158.83.1 |
1.33ms from Jakarta,
ID
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in San Jose, US
What are IP address ranges?
IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.
Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.
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