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)	2485	342 (13.8%)	505 (20.3%)	1614 (64.9%)	24 (1.0%)	585	210 (35.9%)
usa (United States)	1680	104 (6.2%)	509 (30.3%)	1063 (63.3%)	4 (0.2%)	342	68 (19.9%)
egy (Egypt)	236	74 (31.4%)	0 (0.0%)	162 (68.6%)	0 (0.0%)	5	1 (20.0%)
ind (India)	445	67 (15.1%)	37 (8.3%)	340 (76.4%)	1 (0.2%)	42	14 (33.3%)
tun (Tunisia)	76	59 (77.6%)	0 (0.0%)	17 (22.4%)	0 (0.0%)	3	2 (66.7%)
rus (Russian Federation)	684	41 (6.0%)	53 (7.7%)	590 (86.3%)	0 (0.0%)	139	22 (15.8%)
nld (Netherlands)	397	35 (8.8%)	103 (25.9%)	258 (65.0%)	1 (0.3%)	93	21 (22.6%)
tur (Turkey)	598	27 (4.5%)	54 (9.0%)	517 (86.5%)	0 (0.0%)	60	14 (23.3%)
grc (Greece)	119	19 (16.0%)	10 (8.4%)	90 (75.6%)	0 (0.0%)	7	1 (14.3%)
npl (Nepal)	66	19 (28.8%)	9 (13.6%)	36 (54.5%)	2 (3.0%)	16	9 (56.3%)
aus (Australia)	172	18 (10.5%)	47 (27.3%)	107 (62.2%)	0 (0.0%)	54	14 (25.9%)
rou (Romania)	128	18 (14.1%)	42 (32.8%)	67 (52.3%)	1 (0.8%)	21	7 (33.3%)
gbr (United Kingdom)	289	17 (5.9%)	80 (27.7%)	190 (65.7%)	2 (0.7%)	91	16 (17.6%)
mwi (Malawi)	58	17 (29.3%)	2 (3.4%)	38 (65.5%)	1 (1.7%)	9	3 (33.3%)
zaf (South Africa)	141	17 (12.1%)	6 (4.3%)	118 (83.7%)	0 (0.0%)	30	9 (30.0%)
jpn (Japan)	245	16 (6.5%)	43 (17.6%)	186 (75.9%)	0 (0.0%)	40	10 (25.0%)
chn (China)	290	15 (5.2%)	53 (18.3%)	222 (76.6%)	0 (0.0%)	36	5 (13.9%)
deu (Germany)	577	15 (2.6%)	166 (28.8%)	396 (68.6%)	0 (0.0%)	91	10 (11.0%)
ken (Kenya)	70	15 (21.4%)	5 (7.1%)	50 (71.4%)	0 (0.0%)	21	9 (42.9%)
vnm (Vietnam)	85	15 (17.6%)	15 (17.6%)	54 (63.5%)	1 (1.2%)	15	5 (33.3%)
idn (Indonesia)	33	14 (42.4%)	5 (15.2%)	14 (42.4%)	0 (0.0%)	19	8 (42.1%)
phl (Philippines)	160	14 (8.8%)	20 (12.5%)	126 (78.8%)	0 (0.0%)	26	11 (42.3%)
hkg (Hong Kong)	81	13 (16.0%)	21 (25.9%)	46 (56.8%)	1 (1.2%)	26	10 (38.5%)
chl (Chile)	127	12 (9.4%)	14 (11.0%)	101 (79.5%)	0 (0.0%)	18	2 (11.1%)
mus (Mauritius)	43	12 (27.9%)	4 (9.3%)	27 (62.8%)	0 (0.0%)	24	10 (41.7%)
can (Canada)	180	11 (6.1%)	45 (25.0%)	124 (68.9%)	0 (0.0%)	38	5 (13.2%)
ecu (Ecuador)	77	11 (14.3%)	9 (11.7%)	56 (72.7%)	1 (1.3%)	18	8 (44.4%)
irn (Iran)	298	11 (3.7%)	65 (21.8%)	222 (74.5%)	0 (0.0%)	56	10 (17.9%)
ukr (Ukraine)	127	11 (8.7%)	24 (18.9%)	92 (72.4%)	0 (0.0%)	45	11 (24.4%)
ita (Italy)	135	10 (7.4%)	19 (14.1%)	105 (77.8%)	1 (0.7%)	27	7 (25.9%)
tha (Thailand)	221	10 (4.5%)	8 (3.6%)	202 (91.4%)	1 (0.5%)	19	8 (42.1%)
twn (Taiwan)	92	9 (9.8%)	9 (9.8%)	74 (80.4%)	0 (0.0%)	10	3 (30.0%)
col (Colombia)	55	8 (14.5%)	1 (1.8%)	46 (83.6%)	0 (0.0%)	13	5 (38.5%)
pol (Poland)	204	8 (3.9%)	16 (7.8%)	180 (88.2%)	0 (0.0%)	33	3 (9.1%)
esp (Spain)	97	7 (7.2%)	16 (16.5%)	74 (76.3%)	0 (0.0%)	28	5 (17.9%)
ven (Venezuela)	105	7 (6.7%)	17 (16.2%)	79 (75.2%)	2 (1.9%)	12	3 (25.0%)
arg (Argentina)	70	6 (8.6%)	8 (11.4%)	56 (80.0%)	0 (0.0%)	20	4 (20.0%)
bel (Belgium)	42	6 (14.3%)	10 (23.8%)	26 (61.9%)	0 (0.0%)	19	4 (21.1%)
bol (Bolivia)	79	6 (7.6%)	7 (8.9%)	66 (83.5%)	0 (0.0%)	4	2 (50.0%)
dnk (Denmark)	24	6 (25.0%)	8 (33.3%)	10 (41.7%)	0 (0.0%)	10	4 (40.0%)
isr (Israel)	48	6 (12.5%)	3 (6.3%)	39 (81.3%)	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%)
pry (Paraguay)	38	6 (15.8%)	5 (13.2%)	27 (71.1%)	0 (0.0%)	10	5 (50.0%)
cze (Czech Republic)	29	4 (13.8%)	6 (20.7%)	19 (65.5%)	0 (0.0%)	17	3 (17.6%)
mex (Mexico)	201	4 (2.0%)	20 (10.0%)	176 (87.6%)	1 (0.5%)	30	3 (10.0%)
sau (Saudi Arabia)	205	4 (2.0%)	19 (9.3%)	182 (88.8%)	0 (0.0%)	13	4 (30.8%)
uzb (Uzbekistan)	13	4 (30.8%)	0 (0.0%)	9 (69.2%)	0 (0.0%)	6	1 (16.7%)
mda (Moldova, Republic of)	8	3 (37.5%)	3 (37.5%)	2 (25.0%)	0 (0.0%)	5	2 (40.0%)
pan (Panama)	50	3 (6.0%)	10 (20.0%)	36 (72.0%)	1 (2.0%)	9	3 (33.3%)
swe (Sweden)	72	3 (4.2%)	16 (22.2%)	53 (73.6%)	0 (0.0%)	19	2 (10.5%)
uga (Uganda)	29	3 (10.3%)	4 (13.8%)	22 (75.9%)	0 (0.0%)	8	3 (37.5%)
ury (Uruguay)	53	3 (5.7%)	13 (24.5%)	37 (69.8%)	0 (0.0%)	7	2 (28.6%)
ago (Angola)	76	2 (2.6%)	2 (2.6%)	72 (94.7%)	0 (0.0%)	8	2 (25.0%)
are (United Arab Emirates)	71	2 (2.8%)	7 (9.9%)	61 (85.9%)	1 (1.4%)	6	3 (50.0%)
bgd (Bangladesh)	32	2 (6.3%)	1 (3.1%)	29 (90.6%)	0 (0.0%)	20	2 (10.0%)
bhr (Bahrain)	13	2 (15.4%)	1 (7.7%)	10 (76.9%)	0 (0.0%)	4	2 (50.0%)
blr (Belarus)	56	2 (3.6%)	1 (1.8%)	53 (94.6%)	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)	78	2 (2.6%)	10 (12.8%)	65 (83.3%)	1 (1.3%)	20	2 (10.0%)
cri (Costa Rica)	15	2 (13.3%)	1 (6.7%)	12 (80.0%)	0 (0.0%)	9	1 (11.1%)
fra (France)	117	2 (1.7%)	35 (29.9%)	80 (68.4%)	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%)
mmr (Myanmar)	13	2 (15.4%)	0 (0.0%)	11 (84.6%)	0 (0.0%)	10	2 (20.0%)
nzl (New Zealand)	22	2 (9.1%)	4 (18.2%)	16 (72.7%)	0 (0.0%)	11	1 (9.1%)
pak (Pakistan)	27	2 (7.4%)	8 (29.6%)	17 (63.0%)	0 (0.0%)	11	2 (18.2%)
rwa (Rwanda)	13	2 (15.4%)	2 (15.4%)	9 (69.2%)	0 (0.0%)	5	2 (40.0%)
sgp (Singapore)	37	2 (5.4%)	11 (29.7%)	24 (64.9%)	0 (0.0%)	18	1 (5.6%)
srb (Serbia)	155	2 (1.3%)	1 (0.6%)	152 (98.1%)	0 (0.0%)	11	2 (18.2%)
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%)
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%)
kaz (Kazakhstan)	75	1 (1.3%)	4 (5.3%)	70 (93.3%)	0 (0.0%)	11	1 (9.1%)
kor (South Korea)	63	1 (1.6%)	35 (55.6%)	27 (42.9%)	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)	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)	44	1 (2.3%)	0 (0.0%)	43 (97.7%)	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%)
arm (Armenia)	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	0 (0.0%)	3	0 (0.0%)
aut (Austria)	69	0 (0.0%)	17 (24.6%)	52 (75.4%)	0 (0.0%)	16	0 (0.0%)
aze (Azerbaijan)	32	0 (0.0%)	0 (0.0%)	32 (100.0%)	0 (0.0%)	4	0 (0.0%)
bgr (Bulgaria)	31	0 (0.0%)	13 (41.9%)	18 (58.1%)	0 (0.0%)	23	0 (0.0%)
bih (Bosnia and Herzegovina)	5	0 (0.0%)	1 (20.0%)	4 (80.0%)	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)	27	0 (0.0%)	1 (3.7%)	26 (96.3%)	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)	31	0 (0.0%)	9 (29.0%)	22 (71.0%)	0 (0.0%)	7	0 (0.0%)
geo (Georgia)	16	0 (0.0%)	0 (0.0%)	16 (100.0%)	0 (0.0%)	4	0 (0.0%)
gha (Ghana)	64	0 (0.0%)	0 (0.0%)	64 (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%)
hun (Hungary)	19	0 (0.0%)	9 (47.4%)	10 (52.6%)	0 (0.0%)	7	0 (0.0%)
irl (Ireland)	38	0 (0.0%)	9 (23.7%)	29 (76.3%)	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)	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)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	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)	31	0 (0.0%)	0 (0.0%)	31 (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%)
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%)	7	0 (0.0%)
omn (Oman)	19	0 (0.0%)	1 (5.3%)	18 (94.7%)	0 (0.0%)	3	0 (0.0%)
per (Peru)	19	0 (0.0%)	7 (36.8%)	12 (63.2%)	0 (0.0%)	6	0 (0.0%)
prt (Portugal)	74	0 (0.0%)	13 (17.6%)	61 (82.4%)	0 (0.0%)	7	0 (0.0%)
pyf (Polynesia [French])	6	0 (0.0%)	0 (0.0%)	6 (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)	10	0 (0.0%)	0 (0.0%)	10 (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%)
syr (Syria)	2	0 (0.0%)	0 (0.0%)	2 (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%)