Country stats for last year of data

For these country-level stats, the most recent test from each client address is examined within aggregated IP blocks (/24 for IPv4 and /40 for IPv6). If the most recent test in an IP block shows spoofing, the IP block is considered to allow spoofing. If ALL clients indicate blocking, the IP block is considered to block spoofing. (It is considered NAT blocking if there are no non-NAT tests found.) If some clients showed spoofing but the most recent tests show blocking (and there's no evidence of a change in blocking policy), then the IP block is considered "inconsistent". On the map, inconsistent results are counted as spoofing for simplicity.

Country	Client IP blocks	Spoofing IP blocks	Blocking IP blocks		Inconsistent IP blocks	Client ASNs	Spoofing ASNs
			Non-NAT	NAT
bra (Brazil)	2442	327 (13.4%)	506 (20.7%)	1588 (65.0%)	21 (0.9%)	566	199 (35.2%)
usa (United States)	1660	93 (5.6%)	509 (30.7%)	1054 (63.5%)	4 (0.2%)	344	68 (19.8%)
ind (India)	444	64 (14.4%)	37 (8.3%)	342 (77.0%)	1 (0.2%)	44	13 (29.5%)
egy (Egypt)	189	54 (28.6%)	0 (0.0%)	135 (71.4%)	0 (0.0%)	5	1 (20.0%)
rus (Russian Federation)	706	45 (6.4%)	58 (8.2%)	603 (85.4%)	0 (0.0%)	142	21 (14.8%)
nld (Netherlands)	357	30 (8.4%)	99 (27.7%)	226 (63.3%)	2 (0.6%)	90	20 (22.2%)
tun (Tunisia)	47	28 (59.6%)	0 (0.0%)	19 (40.4%)	0 (0.0%)	3	2 (66.7%)
tur (Turkey)	587	24 (4.1%)	54 (9.2%)	509 (86.7%)	0 (0.0%)	59	13 (22.0%)
pol (Poland)	392	22 (5.6%)	38 (9.7%)	331 (84.4%)	1 (0.3%)	117	17 (14.5%)
aus (Australia)	162	20 (12.3%)	44 (27.2%)	97 (59.9%)	1 (0.6%)	53	14 (26.4%)
deu (Germany)	581	18 (3.1%)	168 (28.9%)	395 (68.0%)	0 (0.0%)	97	12 (12.4%)
npl (Nepal)	62	18 (29.0%)	11 (17.7%)	33 (53.2%)	0 (0.0%)	16	8 (50.0%)
chn (China)	289	17 (5.9%)	56 (19.4%)	216 (74.7%)	0 (0.0%)	40	5 (12.5%)
gbr (United Kingdom)	281	17 (6.0%)	82 (29.2%)	181 (64.4%)	1 (0.4%)	95	15 (15.8%)
rou (Romania)	117	17 (14.5%)	40 (34.2%)	60 (51.3%)	0 (0.0%)	22	7 (31.8%)
grc (Greece)	98	16 (16.3%)	9 (9.2%)	73 (74.5%)	0 (0.0%)	6	1 (16.7%)
jpn (Japan)	236	15 (6.4%)	39 (16.5%)	182 (77.1%)	0 (0.0%)	40	9 (22.5%)
mwi (Malawi)	57	15 (26.3%)	3 (5.3%)	39 (68.4%)	0 (0.0%)	9	2 (22.2%)
vnm (Vietnam)	86	15 (17.4%)	15 (17.4%)	55 (64.0%)	1 (1.2%)	17	7 (41.2%)
zaf (South Africa)	144	15 (10.4%)	10 (6.9%)	119 (82.6%)	0 (0.0%)	28	7 (25.0%)
ken (Kenya)	73	13 (17.8%)	5 (6.8%)	55 (75.3%)	0 (0.0%)	21	8 (38.1%)
phl (Philippines)	156	13 (8.3%)	23 (14.7%)	120 (76.9%)	0 (0.0%)	26	11 (42.3%)
hkg (Hong Kong)	92	12 (13.0%)	28 (30.4%)	51 (55.4%)	1 (1.1%)	29	9 (31.0%)
isr (Israel)	63	12 (19.0%)	5 (7.9%)	46 (73.0%)	0 (0.0%)	11	5 (45.5%)
mus (Mauritius)	38	11 (28.9%)	4 (10.5%)	23 (60.5%)	0 (0.0%)	25	9 (36.0%)
ukr (Ukraine)	132	11 (8.3%)	25 (18.9%)	96 (72.7%)	0 (0.0%)	45	11 (24.4%)
can (Canada)	180	10 (5.6%)	48 (26.7%)	122 (67.8%)	0 (0.0%)	39	5 (12.8%)
esp (Spain)	103	10 (9.7%)	15 (14.6%)	78 (75.7%)	0 (0.0%)	30	7 (23.3%)
idn (Indonesia)	36	10 (27.8%)	7 (19.4%)	19 (52.8%)	0 (0.0%)	19	7 (36.8%)
irn (Iran)	380	10 (2.6%)	66 (17.4%)	304 (80.0%)	0 (0.0%)	59	9 (15.3%)
ecu (Ecuador)	80	9 (11.3%)	9 (11.3%)	61 (76.3%)	1 (1.3%)	19	8 (42.1%)
tha (Thailand)	213	8 (3.8%)	7 (3.3%)	197 (92.5%)	1 (0.5%)	20	8 (40.0%)
chl (Chile)	111	7 (6.3%)	15 (13.5%)	89 (80.2%)	0 (0.0%)	17	2 (11.8%)
ita (Italy)	130	7 (5.4%)	20 (15.4%)	103 (79.2%)	0 (0.0%)	27	5 (18.5%)
arg (Argentina)	68	6 (8.8%)	7 (10.3%)	55 (80.9%)	0 (0.0%)	21	4 (19.0%)
bol (Bolivia)	78	6 (7.7%)	7 (9.0%)	65 (83.3%)	0 (0.0%)	4	2 (50.0%)
dnk (Denmark)	28	6 (21.4%)	8 (28.6%)	14 (50.0%)	0 (0.0%)	11	4 (36.4%)
jor (Jordan)	8	6 (75.0%)	0 (0.0%)	2 (25.0%)	0 (0.0%)	2	1 (50.0%)
pry (Paraguay)	38	6 (15.8%)	5 (13.2%)	27 (71.1%)	0 (0.0%)	10	5 (50.0%)
twn (Taiwan)	80	6 (7.5%)	9 (11.3%)	65 (81.3%)	0 (0.0%)	10	3 (30.0%)
ven (Venezuela)	105	6 (5.7%)	16 (15.2%)	81 (77.1%)	2 (1.9%)	12	4 (33.3%)
col (Colombia)	53	5 (9.4%)	1 (1.9%)	47 (88.7%)	0 (0.0%)	13	2 (15.4%)
bel (Belgium)	45	4 (8.9%)	12 (26.7%)	29 (64.4%)	0 (0.0%)	21	2 (9.5%)
cze (Czech Republic)	32	4 (12.5%)	5 (15.6%)	23 (71.9%)	0 (0.0%)	18	3 (16.7%)
sau (Saudi Arabia)	216	4 (1.9%)	17 (7.9%)	195 (90.3%)	0 (0.0%)	12	4 (33.3%)
uzb (Uzbekistan)	13	4 (30.8%)	0 (0.0%)	9 (69.2%)	0 (0.0%)	6	1 (16.7%)
che (Switzerland)	79	3 (3.8%)	10 (12.7%)	64 (81.0%)	2 (2.5%)	20	3 (15.0%)
mda (Moldova, Republic of)	8	3 (37.5%)	3 (37.5%)	2 (25.0%)	0 (0.0%)	5	2 (40.0%)
mmr (Myanmar)	15	3 (20.0%)	0 (0.0%)	12 (80.0%)	0 (0.0%)	12	3 (25.0%)
swe (Sweden)	69	3 (4.3%)	13 (18.8%)	53 (76.8%)	0 (0.0%)	19	2 (10.5%)
ago (Angola)	80	2 (2.5%)	2 (2.5%)	76 (95.0%)	0 (0.0%)	8	2 (25.0%)
are (United Arab Emirates)	77	2 (2.6%)	8 (10.4%)	66 (85.7%)	1 (1.3%)	6	3 (50.0%)
bgd (Bangladesh)	37	2 (5.4%)	0 (0.0%)	35 (94.6%)	0 (0.0%)	23	2 (8.7%)
blr (Belarus)	59	2 (3.4%)	1 (1.7%)	56 (94.9%)	0 (0.0%)	7	1 (14.3%)
cri (Costa Rica)	15	2 (13.3%)	1 (6.7%)	12 (80.0%)	0 (0.0%)	9	1 (11.1%)
fra (France)	125	2 (1.6%)	39 (31.2%)	84 (67.2%)	0 (0.0%)	21	2 (9.5%)
imn (Isle of Man)	2	2 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	2	2 (100.0%)
kaz (Kazakhstan)	95	2 (2.1%)	4 (4.2%)	89 (93.7%)	0 (0.0%)	10	1 (10.0%)
mex (Mexico)	180	2 (1.1%)	18 (10.0%)	159 (88.3%)	1 (0.6%)	29	3 (10.3%)
nzl (New Zealand)	20	2 (10.0%)	4 (20.0%)	14 (70.0%)	0 (0.0%)	11	2 (18.2%)
pan (Panama)	40	2 (5.0%)	7 (17.5%)	30 (75.0%)	1 (2.5%)	10	3 (30.0%)
rwa (Rwanda)	13	2 (15.4%)	2 (15.4%)	9 (69.2%)	0 (0.0%)	5	2 (40.0%)
sgp (Singapore)	33	2 (6.1%)	8 (24.2%)	23 (69.7%)	0 (0.0%)	18	1 (5.6%)
srb (Serbia)	148	2 (1.4%)	1 (0.7%)	145 (98.0%)	0 (0.0%)	9	2 (22.2%)
tza (Tanzania)	4	2 (50.0%)	0 (0.0%)	2 (50.0%)	0 (0.0%)	3	1 (33.3%)
uga (Uganda)	37	2 (5.4%)	4 (10.8%)	31 (83.8%)	0 (0.0%)	9	2 (22.2%)
abw (Aruba)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
alb (Albania)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	2	1 (50.0%)
aut (Austria)	64	1 (1.6%)	14 (21.9%)	49 (76.6%)	0 (0.0%)	15	1 (6.7%)
bhr (Bahrain)	12	1 (8.3%)	1 (8.3%)	10 (83.3%)	0 (0.0%)	3	1 (33.3%)
blz (Belize)	7	1 (14.3%)	1 (14.3%)	5 (71.4%)	0 (0.0%)	1	1 (100.0%)
bwa (Botswana)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
civ (Ivory Coast (Cote D'Ivoire))	7	1 (14.3%)	0 (0.0%)	6 (85.7%)	0 (0.0%)	1	1 (100.0%)
cok (Cook Islands)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	1	1 (100.0%)
cpv (Cape Verde)	3	1 (33.3%)	0 (0.0%)	2 (66.7%)	0 (0.0%)	1	1 (100.0%)
dji (Djibouti)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
kor (South Korea)	70	1 (1.4%)	37 (52.9%)	32 (45.7%)	0 (0.0%)	8	1 (12.5%)
lbn (Lebanon)	12	1 (8.3%)	2 (16.7%)	9 (75.0%)	0 (0.0%)	6	1 (16.7%)
ltu (Lithuania)	14	1 (7.1%)	2 (14.3%)	11 (78.6%)	0 (0.0%)	6	1 (16.7%)
mng (Mongolia)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	2	1 (50.0%)
mys (Malaysia)	22	1 (4.5%)	4 (18.2%)	17 (77.3%)	0 (0.0%)	5	1 (20.0%)
pak (Pakistan)	28	1 (3.6%)	8 (28.6%)	18 (64.3%)	1 (3.6%)	11	2 (18.2%)
pri (Puerto Rico)	10	1 (10.0%)	2 (20.0%)	7 (70.0%)	0 (0.0%)	2	1 (50.0%)
pse (Palestinian Territory, Occupied)	51	1 (2.0%)	0 (0.0%)	50 (98.0%)	0 (0.0%)	1	1 (100.0%)
ury (Uruguay)	60	1 (1.7%)	13 (21.7%)	45 (75.0%)	1 (1.7%)	6	2 (33.3%)
zmb (Zambia)	4	1 (25.0%)	0 (0.0%)	3 (75.0%)	0 (0.0%)	3	1 (33.3%)
and (Andorra, Principality of)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
arm (Armenia)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	3	0 (0.0%)
aze (Azerbaijan)	32	0 (0.0%)	0 (0.0%)	32 (100.0%)	0 (0.0%)	4	0 (0.0%)
bgr (Bulgaria)	30	0 (0.0%)	13 (43.3%)	17 (56.7%)	0 (0.0%)	19	0 (0.0%)
bih (Bosnia and Herzegovina)	5	0 (0.0%)	1 (20.0%)	4 (80.0%)	0 (0.0%)	2	0 (0.0%)
btn (Bhutan)	15	0 (0.0%)	4 (26.7%)	11 (73.3%)	0 (0.0%)	4	0 (0.0%)
cmr (Cameroon)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
cod (Congo, The Democratic Republic of the)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
cyp (Cyprus)	3	0 (0.0%)	1 (33.3%)	2 (66.7%)	0 (0.0%)	2	0 (0.0%)
dom (Dominican Republic)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	1	0 (0.0%)
dza (Algeria)	22	0 (0.0%)	1 (4.5%)	21 (95.5%)	0 (0.0%)	2	0 (0.0%)
est (Estonia)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
eth (Ethiopia)	18	0 (0.0%)	0 (0.0%)	18 (100.0%)	0 (0.0%)	2	0 (0.0%)
fin (Finland)	35	0 (0.0%)	9 (25.7%)	26 (74.3%)	0 (0.0%)	7	0 (0.0%)
geo (Georgia)	17	0 (0.0%)	1 (5.9%)	16 (94.1%)	0 (0.0%)	4	0 (0.0%)
gha (Ghana)	70	0 (0.0%)	0 (0.0%)	70 (100.0%)	0 (0.0%)	4	0 (0.0%)
gtm (Guatemala)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	2	0 (0.0%)
hrv (Croatia)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)
hun (Hungary)	17	0 (0.0%)	8 (47.1%)	9 (52.9%)	0 (0.0%)	7	0 (0.0%)
irl (Ireland)	37	0 (0.0%)	10 (27.0%)	27 (73.0%)	0 (0.0%)	16	0 (0.0%)
irq (Iraq)	8	0 (0.0%)	0 (0.0%)	8 (100.0%)	0 (0.0%)	4	0 (0.0%)
isl (Iceland)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
kgz (Kyrgyz Republic (Kyrgyzstan))	10	0 (0.0%)	0 (0.0%)	10 (100.0%)	0 (0.0%)	4	0 (0.0%)
khm (Cambodia, Kingdom of)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
kwt (Kuwait)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
lby (Libya)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
lka (Sri Lanka)	2	0 (0.0%)	1 (50.0%)	1 (50.0%)	0 (0.0%)	2	0 (0.0%)
lux (Luxembourg)	6	0 (0.0%)	5 (83.3%)	1 (16.7%)	0 (0.0%)	3	0 (0.0%)
lva (Latvia)	3	0 (0.0%)	2 (66.7%)	1 (33.3%)	0 (0.0%)	2	0 (0.0%)
mar (Morocco)	26	0 (0.0%)	0 (0.0%)	26 (100.0%)	0 (0.0%)	2	0 (0.0%)
mdv (Maldives)	7	0 (0.0%)	0 (0.0%)	7 (100.0%)	0 (0.0%)	2	0 (0.0%)
mnp (Northern Mariana Islands)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
nam (Namibia)	6	0 (0.0%)	1 (16.7%)	4 (66.7%)	1 (16.7%)	1	1 (100.0%)
nga (Nigeria)	18	0 (0.0%)	4 (22.2%)	14 (77.8%)	0 (0.0%)	6	0 (0.0%)
nor (Norway)	33	0 (0.0%)	5 (15.2%)	28 (84.8%)	0 (0.0%)	10	0 (0.0%)
omn (Oman)	11	0 (0.0%)	1 (9.1%)	10 (90.9%)	0 (0.0%)	3	0 (0.0%)
per (Peru)	23	0 (0.0%)	7 (30.4%)	15 (65.2%)	1 (4.3%)	6	1 (16.7%)
prt (Portugal)	80	0 (0.0%)	17 (21.3%)	63 (78.8%)	0 (0.0%)	10	0 (0.0%)
pyf (Polynesia [French])	7	0 (0.0%)	0 (0.0%)	7 (100.0%)	0 (0.0%)	2	0 (0.0%)
qat (Qatar)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
reu (Reunion [French])	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
sdn (Sudan)	6	0 (0.0%)	0 (0.0%)	6 (100.0%)	0 (0.0%)	2	0 (0.0%)
slv (El Salvador)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
som (Somalia)	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	0 (0.0%)	2	0 (0.0%)
svk (Slovak Republic)	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	0 (0.0%)	3	0 (0.0%)
svn (Slovenia)	12	0 (0.0%)	0 (0.0%)	12 (100.0%)	0 (0.0%)	5	0 (0.0%)
syc (Seychelles)	2	0 (0.0%)	2 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)
tcd (Chad)	7	0 (0.0%)	6 (85.7%)	1 (14.3%)	0 (0.0%)	2	0 (0.0%)
vgb (British Virgin Islands)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)