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)	2595	386 (14.9%)	542 (20.9%)	1646 (63.4%)	21 (0.8%)	596	232 (38.9%)
egy (Egypt)	353	102 (28.9%)	0 (0.0%)	251 (71.1%)	0 (0.0%)	5	1 (20.0%)
usa (United States)	1632	93 (5.7%)	485 (29.7%)	1051 (64.4%)	3 (0.2%)	309	61 (19.7%)
tun (Tunisia)	86	63 (73.3%)	0 (0.0%)	23 (26.7%)	0 (0.0%)	4	3 (75.0%)
ind (India)	434	48 (11.1%)	37 (8.5%)	348 (80.2%)	1 (0.2%)	37	12 (32.4%)
nld (Netherlands)	443	35 (7.9%)	99 (22.3%)	309 (69.8%)	0 (0.0%)	77	20 (26.0%)
chl (Chile)	181	29 (16.0%)	13 (7.2%)	139 (76.8%)	0 (0.0%)	19	2 (10.5%)
rus (Russian Federation)	541	27 (5.0%)	39 (7.2%)	475 (87.8%)	0 (0.0%)	122	17 (13.9%)
tur (Turkey)	568	23 (4.0%)	34 (6.0%)	510 (89.8%)	1 (0.2%)	57	14 (24.6%)
grc (Greece)	118	21 (17.8%)	8 (6.8%)	89 (75.4%)	0 (0.0%)	6	1 (16.7%)
zaf (South Africa)	159	21 (13.2%)	6 (3.8%)	132 (83.0%)	0 (0.0%)	37	14 (37.8%)
jpn (Japan)	222	19 (8.6%)	43 (19.4%)	160 (72.1%)	0 (0.0%)	39	14 (35.9%)
rou (Romania)	101	19 (18.8%)	26 (25.7%)	56 (55.4%)	0 (0.0%)	14	2 (14.3%)
vnm (Vietnam)	67	18 (26.9%)	12 (17.9%)	37 (55.2%)	0 (0.0%)	8	2 (25.0%)
aus (Australia)	170	17 (10.0%)	35 (20.6%)	117 (68.8%)	1 (0.6%)	43	12 (27.9%)
idn (Indonesia)	36	17 (47.2%)	5 (13.9%)	14 (38.9%)	0 (0.0%)	22	9 (40.9%)
chn (China)	319	16 (5.0%)	66 (20.7%)	237 (74.3%)	0 (0.0%)	29	4 (13.8%)
mwi (Malawi)	54	16 (29.6%)	1 (1.9%)	36 (66.7%)	1 (1.9%)	8	3 (37.5%)
ven (Venezuela)	110	16 (14.5%)	10 (9.1%)	81 (73.6%)	3 (2.7%)	14	3 (21.4%)
gbr (United Kingdom)	325	14 (4.3%)	62 (19.1%)	245 (75.4%)	4 (1.2%)	77	15 (19.5%)
ken (Kenya)	71	14 (19.7%)	4 (5.6%)	53 (74.6%)	0 (0.0%)	22	8 (36.4%)
can (Canada)	172	13 (7.6%)	36 (20.9%)	123 (71.5%)	0 (0.0%)	38	7 (18.4%)
ecu (Ecuador)	64	13 (20.3%)	10 (15.6%)	41 (64.1%)	0 (0.0%)	16	8 (50.0%)
phl (Philippines)	126	12 (9.5%)	17 (13.5%)	97 (77.0%)	0 (0.0%)	23	7 (30.4%)
hkg (Hong Kong)	61	11 (18.0%)	18 (29.5%)	31 (50.8%)	1 (1.6%)	23	9 (39.1%)
ukr (Ukraine)	94	11 (11.7%)	16 (17.0%)	67 (71.3%)	0 (0.0%)	42	10 (23.8%)
ita (Italy)	152	10 (6.6%)	17 (11.2%)	123 (80.9%)	2 (1.3%)	30	7 (23.3%)
npl (Nepal)	64	10 (15.6%)	10 (15.6%)	42 (65.6%)	2 (3.1%)	10	7 (70.0%)
twn (Taiwan)	106	10 (9.4%)	10 (9.4%)	86 (81.1%)	0 (0.0%)	12	3 (25.0%)
deu (Germany)	484	9 (1.9%)	108 (22.3%)	366 (75.6%)	1 (0.2%)	68	9 (13.2%)
tha (Thailand)	229	9 (3.9%)	8 (3.5%)	211 (92.1%)	1 (0.4%)	16	7 (43.8%)
dnk (Denmark)	29	8 (27.6%)	8 (27.6%)	13 (44.8%)	0 (0.0%)	10	4 (40.0%)
mus (Mauritius)	32	8 (25.0%)	1 (3.1%)	23 (71.9%)	0 (0.0%)	17	7 (41.2%)
arg (Argentina)	75	7 (9.3%)	11 (14.7%)	57 (76.0%)	0 (0.0%)	23	5 (21.7%)
jor (Jordan)	14	7 (50.0%)	0 (0.0%)	7 (50.0%)	0 (0.0%)	2	1 (50.0%)
mex (Mexico)	228	7 (3.1%)	23 (10.1%)	197 (86.4%)	1 (0.4%)	31	4 (12.9%)
col (Colombia)	68	6 (8.8%)	2 (2.9%)	60 (88.2%)	0 (0.0%)	14	4 (28.6%)
isr (Israel)	41	6 (14.6%)	5 (12.2%)	30 (73.2%)	0 (0.0%)	10	4 (40.0%)
pol (Poland)	180	6 (3.3%)	12 (6.7%)	162 (90.0%)	0 (0.0%)	28	1 (3.6%)
ury (Uruguay)	53	6 (11.3%)	8 (15.1%)	39 (73.6%)	0 (0.0%)	6	3 (50.0%)
esp (Spain)	98	5 (5.1%)	12 (12.2%)	80 (81.6%)	1 (1.0%)	27	6 (22.2%)
irn (Iran)	278	5 (1.8%)	58 (20.9%)	215 (77.3%)	0 (0.0%)	47	5 (10.6%)
pry (Paraguay)	33	5 (15.2%)	7 (21.2%)	21 (63.6%)	0 (0.0%)	9	3 (33.3%)
are (United Arab Emirates)	42	4 (9.5%)	3 (7.1%)	34 (81.0%)	1 (2.4%)	6	3 (50.0%)
bol (Bolivia)	71	4 (5.6%)	6 (8.5%)	61 (85.9%)	0 (0.0%)	4	2 (50.0%)
swe (Sweden)	53	4 (7.5%)	14 (26.4%)	35 (66.0%)	0 (0.0%)	19	3 (15.8%)
cze (Czech Republic)	19	3 (15.8%)	4 (21.1%)	12 (63.2%)	0 (0.0%)	13	2 (15.4%)
pak (Pakistan)	38	3 (7.9%)	6 (15.8%)	29 (76.3%)	0 (0.0%)	11	3 (27.3%)
srb (Serbia)	127	3 (2.4%)	1 (0.8%)	123 (96.9%)	0 (0.0%)	11	3 (27.3%)
arm (Armenia)	21	2 (9.5%)	0 (0.0%)	19 (90.5%)	0 (0.0%)	7	2 (28.6%)
bel (Belgium)	33	2 (6.1%)	8 (24.2%)	23 (69.7%)	0 (0.0%)	16	2 (12.5%)
bgd (Bangladesh)	29	2 (6.9%)	1 (3.4%)	26 (89.7%)	0 (0.0%)	19	2 (10.5%)
bhr (Bahrain)	25	2 (8.0%)	3 (12.0%)	20 (80.0%)	0 (0.0%)	4	2 (50.0%)
blr (Belarus)	49	2 (4.1%)	0 (0.0%)	47 (95.9%)	0 (0.0%)	6	1 (16.7%)
btn (Bhutan)	7	2 (28.6%)	2 (28.6%)	3 (42.9%)	0 (0.0%)	2	1 (50.0%)
cri (Costa Rica)	11	2 (18.2%)	1 (9.1%)	8 (72.7%)	0 (0.0%)	8	2 (25.0%)
imn (Isle of Man)	2	2 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	2	2 (100.0%)
lbn (Lebanon)	16	2 (12.5%)	2 (12.5%)	12 (75.0%)	0 (0.0%)	7	2 (28.6%)
mda (Moldova, Republic of)	6	2 (33.3%)	1 (16.7%)	3 (50.0%)	0 (0.0%)	3	1 (33.3%)
sau (Saudi Arabia)	182	2 (1.1%)	19 (10.4%)	161 (88.5%)	0 (0.0%)	7	2 (28.6%)
sgp (Singapore)	36	2 (5.6%)	9 (25.0%)	25 (69.4%)	0 (0.0%)	12	1 (8.3%)
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%)	1 (1.3%)	76 (97.4%)	0 (0.0%)	7	1 (14.3%)
alb (Albania)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	2	1 (50.0%)
aut (Austria)	65	1 (1.5%)	11 (16.9%)	53 (81.5%)	0 (0.0%)	16	1 (6.3%)
blz (Belize)	7	1 (14.3%)	1 (14.3%)	5 (71.4%)	0 (0.0%)	1	1 (100.0%)
bwa (Botswana)	4	1 (25.0%)	0 (0.0%)	3 (75.0%)	0 (0.0%)	2	1 (50.0%)
che (Switzerland)	72	1 (1.4%)	12 (16.7%)	59 (81.9%)	0 (0.0%)	18	1 (5.6%)
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%)
dza (Algeria)	39	1 (2.6%)	0 (0.0%)	38 (97.4%)	0 (0.0%)	2	1 (50.0%)
hun (Hungary)	17	1 (5.9%)	7 (41.2%)	9 (52.9%)	0 (0.0%)	7	1 (14.3%)
kaz (Kazakhstan)	53	1 (1.9%)	2 (3.8%)	50 (94.3%)	0 (0.0%)	10	1 (10.0%)
mdv (Maldives)	7	1 (14.3%)	0 (0.0%)	6 (85.7%)	0 (0.0%)	3	1 (33.3%)
mmr (Myanmar)	17	1 (5.9%)	0 (0.0%)	16 (94.1%)	0 (0.0%)	10	1 (10.0%)
mng (Mongolia)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	2	1 (50.0%)
mys (Malaysia)	8	1 (12.5%)	3 (37.5%)	4 (50.0%)	0 (0.0%)	4	1 (25.0%)
nzl (New Zealand)	23	1 (4.3%)	5 (21.7%)	16 (69.6%)	1 (4.3%)	9	2 (22.2%)
pan (Panama)	47	1 (2.1%)	8 (17.0%)	38 (80.9%)	0 (0.0%)	7	1 (14.3%)
pri (Puerto Rico)	8	1 (12.5%)	2 (25.0%)	5 (62.5%)	0 (0.0%)	2	1 (50.0%)
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%)
aze (Azerbaijan)	30	0 (0.0%)	0 (0.0%)	30 (100.0%)	0 (0.0%)	2	0 (0.0%)
bgr (Bulgaria)	32	0 (0.0%)	11 (34.4%)	21 (65.6%)	0 (0.0%)	20	0 (0.0%)
bih (Bosnia and Herzegovina)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)
civ (Ivory Coast (Cote D'Ivoire))	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
cmr (Cameroon)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
cub (Cuba)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
cyp (Cyprus)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
dom (Dominican Republic)	6	0 (0.0%)	1 (16.7%)	5 (83.3%)	0 (0.0%)	3	0 (0.0%)
est (Estonia)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
eth (Ethiopia)	17	0 (0.0%)	0 (0.0%)	17 (100.0%)	0 (0.0%)	2	0 (0.0%)
fin (Finland)	13	0 (0.0%)	6 (46.2%)	7 (53.8%)	0 (0.0%)	5	0 (0.0%)
fji (Fiji)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	1	0 (0.0%)
fra (France)	107	0 (0.0%)	27 (25.2%)	80 (74.8%)	0 (0.0%)	16	0 (0.0%)
geo (Georgia)	12	0 (0.0%)	0 (0.0%)	12 (100.0%)	0 (0.0%)	3	0 (0.0%)
gha (Ghana)	36	0 (0.0%)	0 (0.0%)	36 (100.0%)	0 (0.0%)	4	0 (0.0%)
gtm (Guatemala)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
hrv (Croatia)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
irl (Ireland)	39	0 (0.0%)	12 (30.8%)	27 (69.2%)	0 (0.0%)	16	0 (0.0%)
irq (Iraq)	12	0 (0.0%)	0 (0.0%)	12 (100.0%)	0 (0.0%)	6	0 (0.0%)
isl (Iceland)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	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%)
kor (South Korea)	73	0 (0.0%)	43 (58.9%)	30 (41.1%)	0 (0.0%)	7	0 (0.0%)
kwt (Kuwait)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	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)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
ltu (Lithuania)	24	0 (0.0%)	3 (12.5%)	21 (87.5%)	0 (0.0%)	5	0 (0.0%)
lux (Luxembourg)	9	0 (0.0%)	7 (77.8%)	2 (22.2%)	0 (0.0%)	4	0 (0.0%)
lva (Latvia)	7	0 (0.0%)	3 (42.9%)	4 (57.1%)	0 (0.0%)	5	0 (0.0%)
mar (Morocco)	46	0 (0.0%)	0 (0.0%)	46 (100.0%)	0 (0.0%)	4	0 (0.0%)
mkd (Macedonia)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
moz (Mozambique)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
nam (Namibia)	4	0 (0.0%)	1 (25.0%)	3 (75.0%)	0 (0.0%)	1	0 (0.0%)
nga (Nigeria)	29	0 (0.0%)	4 (13.8%)	25 (86.2%)	0 (0.0%)	5	0 (0.0%)
nic (Nicaragua)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
nor (Norway)	30	0 (0.0%)	3 (10.0%)	27 (90.0%)	0 (0.0%)	9	0 (0.0%)
omn (Oman)	17	0 (0.0%)	0 (0.0%)	17 (100.0%)	0 (0.0%)	3	0 (0.0%)
per (Peru)	14	0 (0.0%)	4 (28.6%)	10 (71.4%)	0 (0.0%)	4	0 (0.0%)
prt (Portugal)	93	0 (0.0%)	20 (21.5%)	73 (78.5%)	0 (0.0%)	9	0 (0.0%)
pse (Palestinian Territory, Occupied)	14	0 (0.0%)	0 (0.0%)	14 (100.0%)	0 (0.0%)	1	0 (0.0%)
pyf (Polynesia [French])	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	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%)
rwa (Rwanda)	5	0 (0.0%)	3 (60.0%)	2 (40.0%)	0 (0.0%)	2	0 (0.0%)
sdn (Sudan)	4	0 (0.0%)	0 (0.0%)	4 (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)	8	0 (0.0%)	1 (12.5%)	7 (87.5%)	0 (0.0%)	6	0 (0.0%)
svn (Slovenia)	11	0 (0.0%)	1 (9.1%)	10 (90.9%)	0 (0.0%)	5	0 (0.0%)
syr (Syria)	18	0 (0.0%)	0 (0.0%)	18 (100.0%)	0 (0.0%)	1	0 (0.0%)
tcd (Chad)	9	0 (0.0%)	6 (66.7%)	3 (33.3%)	0 (0.0%)	3	0 (0.0%)
tkm (Turkmenistan)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
uga (Uganda)	23	0 (0.0%)	4 (17.4%)	19 (82.6%)	0 (0.0%)	6	0 (0.0%)
uzb (Uzbekistan)	3	0 (0.0%)	1 (33.3%)	2 (66.7%)	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%)