hostmaster.sbc.com - robtex.com
hostmaster.sbc.com
| DNSSEC | ⚠️ Not signed | ||||||
| MX | mx0a-00191d01.pphosted.com ⭐ | ||||||
| A | 67.231.149.140🇺🇸 Proofpoint67.231.149.0/24 Inc. | ||||||
| PTR | mx0a-00191d01.pphosted.com | ||||||
| MX | mx0b-00191d01.pphosted.com ⭐ | ||||||
| A | 67.231.157.136🇺🇸 Proofpoint67.231.157.0/24 Inc. | ||||||
| PTR | mx0b-00191d01.pphosted.com | ||||||
sbc.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 144.160.143.62🇺🇸 AS797144.160.0.0/15 AT&T Services, Inc. | ||||||
| NS | ns0.attdns.com ⭐ | ||||||
| NS | a1-212.akam.net | ||||||
| NS | a14-65.akam.net | ||||||
| NS | a4-66.akam.net | ||||||
| NS | a5-67.akam.net | ||||||
| NS | a8-64.akam.net | ||||||
| NS | a9-66.akam.net | ||||||
| MX | mx0a-00191d01.pphosted.com ⭐ | ||||||
| MX | mx0b-00191d01.pphosted.com ⭐ | ||||||
| TXT | _pyx1jp99jolay2qkkrzg1ipdhb5hqst | ||||||
| TXT | _mb2uurqg8j1lwv5z39g4wuwu87ve8kn | ||||||
| TXT | v=spf1 mx ~all | ||||||
| SOA | ns0.attdns.comeiss-dns@att.com 2026-04-15 #1 | ||||||
rank #131337 globally
rank #52861 in the tld
WOT: SAFE (89/100)
📈 Tranco rank: #30,179
Same first word
Similar names
DNS History
6 records (2 active, 4 former)
○MXgrid1i-ent.seg.att.com2015-08-06 → 2015-08-06 · 3 obs
○ 2015-11-30 22:49:48
○ 2026-05-09 08:12:24
○MXgrid2i-ent.seg.att.com2015-08-06 → 2015-08-06 · 3 obs
○ 2015-11-30 22:49:48
○ 2026-05-09 08:12:24
●MXmx0a-00191d01.pphosted.com2016-07-12 → 2026-05-09 · 3 obs
● 2016-07-12 11:07:26
● 2026-05-09 08:12:24
●MXmx0b-00191d01.pphosted.com2016-07-12 → 2026-05-09 · 3 obs
● 2016-07-12 11:07:26
● 2026-05-09 08:12:24
○MXmxa-00191d01.gslb.pphosted.com2015-11-30 → 2016-03-12 · 5 obs
● 2015-11-30 22:49:48
● 2016-03-12 02:28:32
○ 2016-07-12 11:07:26
○ 2026-05-09 08:12:24
○MXmxb-00191d01.gslb.pphosted.com2015-11-30 → 2016-03-12 · 5 obs
● 2015-11-30 22:49:48
● 2016-03-12 02:28:32
○ 2016-07-12 11:07:26
○ 2026-05-09 08:12:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | h.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net, k.gtld-servers.net... | - |
| sbc.com | a4-66.akam.net, a5-67.akam.net, a1-212.akam.net, a9-66.akam.net... | - |
✅ Authoritative Response
Server:184.26.161.65
NS records: a4-66.akam.net, a5-67.akam.net, a1-212.akam.net, a9-66.akam.net, a8-64.akam.net, a14-65.akam.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sbc.com (unsigned zone)
⏱️ Timing
Total: 388ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| MX | 2 | mx0b-00191d01.pphosted.com (pri: 10), mx0a-00191d01.pphosted.com (pri: 10) |
Analysis
Mail Servers
Two mail servers mx0a-00191d01.pphosted.com and mx0b-00191d01.pphosted.com handle hostmaster.sbc.com.
hostmaster.sbc.com uses the same mail server setup as other domains such as xfinitycomcast.netwww.att.com, nlpi090.sbcis.sbc.com, 12-50-167-34.att.com, kcpxy5.att.com and connectivitybm.att.com.
hostmaster.sbc.com shares some mail servers with other domains at least partially, for example gyao.research.att.com.
Host names with a single IP:
mx0a-00191d01.pphosted.com resolves to 67.231.149.140.
mx0b-00191d01.pphosted.com resolves to 67.231.157.136.