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)	2506	361 (14.4%)	492 (19.6%)	1630 (65.0%)	23 (0.9%)	594	218 (36.7%)
usa (United States)	1657	104 (6.3%)	502 (30.3%)	1048 (63.2%)	3 (0.2%)	332	67 (20.2%)
egy (Egypt)	257	82 (31.9%)	0 (0.0%)	175 (68.1%)	0 (0.0%)	5	1 (20.0%)
ind (India)	443	65 (14.7%)	38 (8.6%)	339 (76.5%)	1 (0.2%)	42	13 (31.0%)
tun (Tunisia)	77	60 (77.9%)	0 (0.0%)	17 (22.1%)	0 (0.0%)	4	3 (75.0%)
rus (Russian Federation)	668	41 (6.1%)	52 (7.8%)	575 (86.1%)	0 (0.0%)	142	22 (15.5%)
nld (Netherlands)	399	34 (8.5%)	103 (25.8%)	261 (65.4%)	1 (0.3%)	91	20 (22.0%)
tur (Turkey)	609	25 (4.1%)	54 (8.9%)	529 (86.9%)	1 (0.2%)	60	14 (23.3%)
aus (Australia)	176	19 (10.8%)	47 (26.7%)	110 (62.5%)	0 (0.0%)	54	14 (25.9%)
grc (Greece)	122	19 (15.6%)	10 (8.2%)	93 (76.2%)	0 (0.0%)	7	1 (14.3%)
jpn (Japan)	241	19 (7.9%)	44 (18.3%)	178 (73.9%)	0 (0.0%)	42	12 (28.6%)
zaf (South Africa)	149	19 (12.8%)	7 (4.7%)	123 (82.6%)	0 (0.0%)	32	11 (34.4%)
mwi (Malawi)	58	17 (29.3%)	2 (3.4%)	38 (65.5%)	1 (1.7%)	9	3 (33.3%)
deu (Germany)	561	16 (2.9%)	159 (28.3%)	386 (68.8%)	0 (0.0%)	92	10 (10.9%)
gbr (United Kingdom)	296	16 (5.4%)	77 (26.0%)	201 (67.9%)	2 (0.7%)	88	15 (17.0%)
npl (Nepal)	61	16 (26.2%)	7 (11.5%)	36 (59.0%)	2 (3.3%)	15	8 (53.3%)
rou (Romania)	118	16 (13.6%)	39 (33.1%)	63 (53.4%)	0 (0.0%)	20	4 (20.0%)
vnm (Vietnam)	84	16 (19.0%)	15 (17.9%)	52 (61.9%)	1 (1.2%)	15	5 (33.3%)
chl (Chile)	137	15 (10.9%)	14 (10.2%)	108 (78.8%)	0 (0.0%)	17	2 (11.8%)
chn (China)	281	15 (5.3%)	53 (18.9%)	213 (75.8%)	0 (0.0%)	35	6 (17.1%)
idn (Indonesia)	34	15 (44.1%)	5 (14.7%)	14 (41.2%)	0 (0.0%)	19	8 (42.1%)
ken (Kenya)	72	15 (20.8%)	5 (6.9%)	52 (72.2%)	0 (0.0%)	20	9 (45.0%)
hkg (Hong Kong)	76	12 (15.8%)	20 (26.3%)	43 (56.6%)	1 (1.3%)	25	9 (36.0%)
can (Canada)	175	11 (6.3%)	44 (25.1%)	120 (68.6%)	0 (0.0%)	36	5 (13.9%)
ecu (Ecuador)	76	11 (14.5%)	8 (10.5%)	56 (73.7%)	1 (1.3%)	18	8 (44.4%)
mus (Mauritius)	40	11 (27.5%)	2 (5.0%)	27 (67.5%)	0 (0.0%)	22	9 (40.9%)
ukr (Ukraine)	125	11 (8.8%)	23 (18.4%)	91 (72.8%)	0 (0.0%)	45	11 (24.4%)
col (Colombia)	59	10 (16.9%)	1 (1.7%)	48 (81.4%)	0 (0.0%)	14	6 (42.9%)
irn (Iran)	247	10 (4.0%)	61 (24.7%)	176 (71.3%)	0 (0.0%)	53	9 (17.0%)
phl (Philippines)	158	10 (6.3%)	22 (13.9%)	126 (79.7%)	0 (0.0%)	27	8 (29.6%)
tha (Thailand)	219	10 (4.6%)	8 (3.7%)	200 (91.3%)	1 (0.5%)	19	8 (42.1%)
ita (Italy)	139	9 (6.5%)	20 (14.4%)	109 (78.4%)	1 (0.7%)	26	6 (23.1%)
twn (Taiwan)	100	9 (9.0%)	10 (10.0%)	81 (81.0%)	0 (0.0%)	10	3 (30.0%)
pol (Poland)	200	8 (4.0%)	15 (7.5%)	177 (88.5%)	0 (0.0%)	34	3 (8.8%)
esp (Spain)	99	7 (7.1%)	16 (16.2%)	76 (76.8%)	0 (0.0%)	28	5 (17.9%)
ven (Venezuela)	109	7 (6.4%)	17 (15.6%)	83 (76.1%)	2 (1.8%)	12	3 (25.0%)
arg (Argentina)	70	6 (8.6%)	9 (12.9%)	55 (78.6%)	0 (0.0%)	22	4 (18.2%)
bel (Belgium)	43	6 (14.0%)	11 (25.6%)	26 (60.5%)	0 (0.0%)	18	4 (22.2%)
dnk (Denmark)	23	6 (26.1%)	8 (34.8%)	9 (39.1%)	0 (0.0%)	9	4 (44.4%)
isr (Israel)	44	6 (13.6%)	3 (6.8%)	35 (79.5%)	0 (0.0%)	10	3 (30.0%)
jor (Jordan)	12	6 (50.0%)	0 (0.0%)	6 (50.0%)	0 (0.0%)	2	1 (50.0%)
cze (Czech Republic)	28	4 (14.3%)	5 (17.9%)	19 (67.9%)	0 (0.0%)	17	3 (17.6%)
mex (Mexico)	202	4 (2.0%)	17 (8.4%)	180 (89.1%)	1 (0.5%)	30	3 (10.0%)
pry (Paraguay)	37	4 (10.8%)	5 (13.5%)	27 (73.0%)	1 (2.7%)	9	4 (44.4%)
sau (Saudi Arabia)	201	4 (2.0%)	19 (9.5%)	178 (88.6%)	0 (0.0%)	13	4 (30.8%)
swe (Sweden)	67	4 (6.0%)	16 (23.9%)	47 (70.1%)	0 (0.0%)	19	3 (15.8%)
uzb (Uzbekistan)	13	4 (30.8%)	0 (0.0%)	9 (69.2%)	0 (0.0%)	6	1 (16.7%)
bol (Bolivia)	76	3 (3.9%)	6 (7.9%)	67 (88.2%)	0 (0.0%)	4	1 (25.0%)
mda (Moldova, Republic of)	8	3 (37.5%)	3 (37.5%)	2 (25.0%)	0 (0.0%)	5	2 (40.0%)
pan (Panama)	43	3 (7.0%)	8 (18.6%)	32 (74.4%)	0 (0.0%)	7	2 (28.6%)
srb (Serbia)	151	3 (2.0%)	1 (0.7%)	147 (97.4%)	0 (0.0%)	11	3 (27.3%)
ury (Uruguay)	53	3 (5.7%)	13 (24.5%)	37 (69.8%)	0 (0.0%)	7	2 (28.6%)
are (United Arab Emirates)	64	2 (3.1%)	7 (10.9%)	54 (84.4%)	1 (1.6%)	6	3 (50.0%)
bgd (Bangladesh)	34	2 (5.9%)	1 (2.9%)	31 (91.2%)	0 (0.0%)	22	2 (9.1%)
bhr (Bahrain)	16	2 (12.5%)	2 (12.5%)	12 (75.0%)	0 (0.0%)	4	2 (50.0%)
blr (Belarus)	60	2 (3.3%)	1 (1.7%)	57 (95.0%)	0 (0.0%)	7	1 (14.3%)
btn (Bhutan)	8	2 (25.0%)	2 (25.0%)	4 (50.0%)	0 (0.0%)	3	1 (33.3%)
che (Switzerland)	79	2 (2.5%)	12 (15.2%)	64 (81.0%)	1 (1.3%)	21	2 (9.5%)
cri (Costa Rica)	13	2 (15.4%)	1 (7.7%)	10 (76.9%)	0 (0.0%)	8	1 (12.5%)
imn (Isle of Man)	2	2 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	2	2 (100.0%)
mmr (Myanmar)	15	2 (13.3%)	0 (0.0%)	13 (86.7%)	0 (0.0%)	11	2 (18.2%)
nzl (New Zealand)	22	2 (9.1%)	4 (18.2%)	16 (72.7%)	0 (0.0%)	10	1 (10.0%)
pak (Pakistan)	25	2 (8.0%)	7 (28.0%)	16 (64.0%)	0 (0.0%)	11	2 (18.2%)
rwa (Rwanda)	12	2 (16.7%)	2 (16.7%)	8 (66.7%)	0 (0.0%)	5	2 (40.0%)
sgp (Singapore)	39	2 (5.1%)	11 (28.2%)	26 (66.7%)	0 (0.0%)	17	1 (5.9%)
uga (Uganda)	26	2 (7.7%)	4 (15.4%)	20 (76.9%)	0 (0.0%)	8	2 (25.0%)
abw (Aruba)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
ago (Angola)	78	1 (1.3%)	2 (2.6%)	74 (94.9%)	1 (1.3%)	7	2 (28.6%)
alb (Albania)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	2	1 (50.0%)
arm (Armenia)	7	1 (14.3%)	0 (0.0%)	6 (85.7%)	0 (0.0%)	4	1 (25.0%)
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%)
fra (France)	114	1 (0.9%)	33 (28.9%)	80 (70.2%)	0 (0.0%)	20	1 (5.0%)
hun (Hungary)	16	1 (6.3%)	7 (43.8%)	8 (50.0%)	0 (0.0%)	6	1 (16.7%)
kaz (Kazakhstan)	77	1 (1.3%)	5 (6.5%)	71 (92.2%)	0 (0.0%)	13	1 (7.7%)
kor (South Korea)	65	1 (1.5%)	35 (53.8%)	29 (44.6%)	0 (0.0%)	8	1 (12.5%)
lbn (Lebanon)	13	1 (7.7%)	2 (15.4%)	10 (76.9%)	0 (0.0%)	7	1 (14.3%)
ltu (Lithuania)	13	1 (7.7%)	2 (15.4%)	10 (76.9%)	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)	17	1 (5.9%)	4 (23.5%)	12 (70.6%)	0 (0.0%)	5	1 (20.0%)
nor (Norway)	32	1 (3.1%)	5 (15.6%)	26 (81.3%)	0 (0.0%)	10	1 (10.0%)
pri (Puerto Rico)	10	1 (10.0%)	2 (20.0%)	7 (70.0%)	0 (0.0%)	2	1 (50.0%)
pse (Palestinian Territory, Occupied)	38	1 (2.6%)	0 (0.0%)	37 (97.4%)	0 (0.0%)	1	1 (100.0%)
tgo (Togo)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
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%)
aut (Austria)	72	0 (0.0%)	17 (23.6%)	55 (76.4%)	0 (0.0%)	16	0 (0.0%)
aze (Azerbaijan)	31	0 (0.0%)	0 (0.0%)	31 (100.0%)	0 (0.0%)	4	0 (0.0%)
bgr (Bulgaria)	33	0 (0.0%)	13 (39.4%)	20 (60.6%)	0 (0.0%)	23	0 (0.0%)
bih (Bosnia and Herzegovina)	4	0 (0.0%)	1 (25.0%)	3 (75.0%)	0 (0.0%)	2	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%)
cub (Cuba)	2	0 (0.0%)	0 (0.0%)	2 (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)	29	0 (0.0%)	0 (0.0%)	29 (100.0%)	0 (0.0%)	1	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)	30	0 (0.0%)	9 (30.0%)	21 (70.0%)	0 (0.0%)	7	0 (0.0%)
fji (Fiji)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
geo (Georgia)	16	0 (0.0%)	0 (0.0%)	16 (100.0%)	0 (0.0%)	4	0 (0.0%)
gha (Ghana)	60	0 (0.0%)	0 (0.0%)	60 (100.0%)	0 (0.0%)	4	0 (0.0%)
gtm (Guatemala)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
hrv (Croatia)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)
irl (Ireland)	40	0 (0.0%)	10 (25.0%)	30 (75.0%)	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))	9	0 (0.0%)	0 (0.0%)	9 (100.0%)	0 (0.0%)	3	0 (0.0%)
khm (Cambodia, Kingdom of)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	2	0 (0.0%)
kwt (Kuwait)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
lbr (Liberia)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
lby (Libya)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	3	0 (0.0%)
lie (Liechtenstein)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	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)	5	0 (0.0%)	4 (80.0%)	1 (20.0%)	0 (0.0%)	2	0 (0.0%)
mar (Morocco)	32	0 (0.0%)	0 (0.0%)	32 (100.0%)	0 (0.0%)	2	0 (0.0%)
mdv (Maldives)	6	0 (0.0%)	0 (0.0%)	6 (100.0%)	0 (0.0%)	2	0 (0.0%)
mkd (Macedonia)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
nam (Namibia)	5	0 (0.0%)	1 (20.0%)	3 (60.0%)	1 (20.0%)	1	1 (100.0%)
nga (Nigeria)	22	0 (0.0%)	4 (18.2%)	18 (81.8%)	0 (0.0%)	5	0 (0.0%)
omn (Oman)	25	0 (0.0%)	1 (4.0%)	24 (96.0%)	0 (0.0%)	3	0 (0.0%)
per (Peru)	20	0 (0.0%)	8 (40.0%)	12 (60.0%)	0 (0.0%)	7	0 (0.0%)
prt (Portugal)	75	0 (0.0%)	14 (18.7%)	61 (81.3%)	0 (0.0%)	7	0 (0.0%)
pyf (Polynesia [French])	5	0 (0.0%)	0 (0.0%)	5 (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])	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	3	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)	9	0 (0.0%)	0 (0.0%)	9 (100.0%)	0 (0.0%)	4	0 (0.0%)
syc (Seychelles)	2	0 (0.0%)	2 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)
syr (Syria)	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	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%)
tkm (Turkmenistan)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
vgb (British Virgin Islands)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)