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)	2723	416 (15.3%)	578 (21.2%)	1703 (62.5%)	26 (1.0%)	631	242 (38.4%)
egy (Egypt)	417	126 (30.2%)	0 (0.0%)	291 (69.8%)	0 (0.0%)	5	1 (20.0%)
usa (United States)	1655	105 (6.3%)	467 (28.2%)	1078 (65.1%)	5 (0.3%)	311	65 (20.9%)
tun (Tunisia)	93	65 (69.9%)	0 (0.0%)	28 (30.1%)	0 (0.0%)	5	4 (80.0%)
chl (Chile)	203	33 (16.3%)	12 (5.9%)	158 (77.8%)	0 (0.0%)	19	3 (15.8%)
ind (India)	418	32 (7.7%)	38 (9.1%)	346 (82.8%)	2 (0.5%)	32	7 (21.9%)
nld (Netherlands)	453	31 (6.8%)	99 (21.9%)	323 (71.3%)	0 (0.0%)	65	16 (24.6%)
rus (Russian Federation)	373	31 (8.3%)	32 (8.6%)	310 (83.1%)	0 (0.0%)	101	15 (14.9%)
grc (Greece)	129	27 (20.9%)	7 (5.4%)	95 (73.6%)	0 (0.0%)	6	1 (16.7%)
tur (Turkey)	559	27 (4.8%)	37 (6.6%)	494 (88.4%)	1 (0.2%)	62	14 (22.6%)
zaf (South Africa)	150	20 (13.3%)	7 (4.7%)	123 (82.0%)	0 (0.0%)	44	15 (34.1%)
idn (Indonesia)	31	19 (61.3%)	5 (16.1%)	7 (22.6%)	0 (0.0%)	20	11 (55.0%)
chn (China)	401	18 (4.5%)	122 (30.4%)	261 (65.1%)	0 (0.0%)	29	5 (17.2%)
jpn (Japan)	227	18 (7.9%)	47 (20.7%)	162 (71.4%)	0 (0.0%)	39	13 (33.3%)
ita (Italy)	164	17 (10.4%)	18 (11.0%)	127 (77.4%)	2 (1.2%)	35	10 (28.6%)
mwi (Malawi)	48	16 (33.3%)	0 (0.0%)	31 (64.6%)	1 (2.1%)	5	2 (40.0%)
rou (Romania)	96	16 (16.7%)	25 (26.0%)	55 (57.3%)	0 (0.0%)	11	1 (9.1%)
ven (Venezuela)	112	16 (14.3%)	12 (10.7%)	81 (72.3%)	3 (2.7%)	14	3 (21.4%)
can (Canada)	188	15 (8.0%)	32 (17.0%)	141 (75.0%)	0 (0.0%)	40	8 (20.0%)
gbr (United Kingdom)	345	15 (4.3%)	68 (19.7%)	259 (75.1%)	3 (0.9%)	80	14 (17.5%)
ukr (Ukraine)	75	15 (20.0%)	26 (34.7%)	34 (45.3%)	0 (0.0%)	38	11 (28.9%)
ken (Kenya)	85	14 (16.5%)	5 (5.9%)	65 (76.5%)	1 (1.2%)	22	10 (45.5%)
vnm (Vietnam)	52	14 (26.9%)	10 (19.2%)	27 (51.9%)	1 (1.9%)	9	4 (44.4%)
hkg (Hong Kong)	53	13 (24.5%)	15 (28.3%)	24 (45.3%)	1 (1.9%)	21	10 (47.6%)
mex (Mexico)	273	13 (4.8%)	27 (9.9%)	232 (85.0%)	1 (0.4%)	33	6 (18.2%)
phl (Philippines)	99	13 (13.1%)	13 (13.1%)	73 (73.7%)	0 (0.0%)	22	7 (31.8%)
twn (Taiwan)	100	12 (12.0%)	6 (6.0%)	82 (82.0%)	0 (0.0%)	10	2 (20.0%)
ecu (Ecuador)	53	11 (20.8%)	10 (18.9%)	32 (60.4%)	0 (0.0%)	14	7 (50.0%)
aus (Australia)	131	10 (7.6%)	28 (21.4%)	92 (70.2%)	1 (0.8%)	34	8 (23.5%)
dnk (Denmark)	33	9 (27.3%)	8 (24.2%)	16 (48.5%)	0 (0.0%)	11	4 (36.4%)
npl (Nepal)	63	8 (12.7%)	10 (15.9%)	43 (68.3%)	2 (3.2%)	10	6 (60.0%)
esp (Spain)	93	7 (7.5%)	13 (14.0%)	72 (77.4%)	1 (1.1%)	23	7 (30.4%)
jor (Jordan)	15	7 (46.7%)	1 (6.7%)	7 (46.7%)	0 (0.0%)	2	1 (50.0%)
mus (Mauritius)	27	7 (25.9%)	1 (3.7%)	19 (70.4%)	0 (0.0%)	13	6 (46.2%)
bol (Bolivia)	68	6 (8.8%)	7 (10.3%)	55 (80.9%)	0 (0.0%)	4	2 (50.0%)
col (Colombia)	69	6 (8.7%)	4 (5.8%)	59 (85.5%)	0 (0.0%)	13	4 (30.8%)
deu (Germany)	377	6 (1.6%)	86 (22.8%)	284 (75.3%)	1 (0.3%)	51	7 (13.7%)
pry (Paraguay)	33	6 (18.2%)	7 (21.2%)	20 (60.6%)	0 (0.0%)	8	4 (50.0%)
tha (Thailand)	225	6 (2.7%)	4 (1.8%)	214 (95.1%)	1 (0.4%)	13	4 (30.8%)
ury (Uruguay)	119	6 (5.0%)	10 (8.4%)	102 (85.7%)	1 (0.8%)	7	4 (57.1%)
pol (Poland)	170	5 (2.9%)	12 (7.1%)	153 (90.0%)	0 (0.0%)	27	1 (3.7%)
are (United Arab Emirates)	39	4 (10.3%)	4 (10.3%)	30 (76.9%)	1 (2.6%)	6	3 (50.0%)
srb (Serbia)	101	4 (4.0%)	1 (1.0%)	96 (95.0%)	0 (0.0%)	11	3 (27.3%)
cze (Czech Republic)	17	3 (17.6%)	5 (29.4%)	9 (52.9%)	0 (0.0%)	11	2 (18.2%)
irn (Iran)	299	3 (1.0%)	21 (7.0%)	275 (92.0%)	0 (0.0%)	27	3 (11.1%)
mdv (Maldives)	7	3 (42.9%)	1 (14.3%)	3 (42.9%)	0 (0.0%)	2	1 (50.0%)
swe (Sweden)	47	3 (6.4%)	13 (27.7%)	31 (66.0%)	0 (0.0%)	20	3 (15.0%)
abw (Aruba)	2	2 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
arm (Armenia)	21	2 (9.5%)	0 (0.0%)	19 (90.5%)	0 (0.0%)	7	2 (28.6%)
bhr (Bahrain)	26	2 (7.7%)	3 (11.5%)	21 (80.8%)	0 (0.0%)	4	2 (50.0%)
blr (Belarus)	37	2 (5.4%)	0 (0.0%)	35 (94.6%)	0 (0.0%)	6	1 (16.7%)
btn (Bhutan)	6	2 (33.3%)	2 (33.3%)	2 (33.3%)	0 (0.0%)	1	1 (100.0%)
dza (Algeria)	45	2 (4.4%)	0 (0.0%)	43 (95.6%)	0 (0.0%)	2	1 (50.0%)
isr (Israel)	33	2 (6.1%)	3 (9.1%)	28 (84.8%)	0 (0.0%)	7	2 (28.6%)
mda (Moldova, Republic of)	5	2 (40.0%)	1 (20.0%)	2 (40.0%)	0 (0.0%)	3	1 (33.3%)
sau (Saudi Arabia)	167	2 (1.2%)	23 (13.8%)	142 (85.0%)	0 (0.0%)	7	2 (28.6%)
sgp (Singapore)	35	2 (5.7%)	12 (34.3%)	21 (60.0%)	0 (0.0%)	9	1 (11.1%)
ago (Angola)	80	1 (1.3%)	1 (1.3%)	78 (97.5%)	0 (0.0%)	6	1 (16.7%)
arg (Argentina)	61	1 (1.6%)	12 (19.7%)	48 (78.7%)	0 (0.0%)	18	1 (5.6%)
bel (Belgium)	36	1 (2.8%)	7 (19.4%)	28 (77.8%)	0 (0.0%)	10	1 (10.0%)
bgd (Bangladesh)	25	1 (4.0%)	2 (8.0%)	22 (88.0%)	0 (0.0%)	15	1 (6.7%)
blz (Belize)	7	1 (14.3%)	1 (14.3%)	5 (71.4%)	0 (0.0%)	1	1 (100.0%)
bwa (Botswana)	5	1 (20.0%)	0 (0.0%)	4 (80.0%)	0 (0.0%)	3	1 (33.3%)
cok (Cook Islands)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	1	1 (100.0%)
cri (Costa Rica)	9	1 (11.1%)	1 (11.1%)	7 (77.8%)	0 (0.0%)	6	1 (16.7%)
est (Estonia)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	2	1 (50.0%)
eth (Ethiopia)	22	1 (4.5%)	0 (0.0%)	21 (95.5%)	0 (0.0%)	2	1 (50.0%)
fra (France)	111	1 (0.9%)	29 (26.1%)	81 (73.0%)	0 (0.0%)	18	1 (5.6%)
gin (Guinea)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
hun (Hungary)	14	1 (7.1%)	6 (42.9%)	7 (50.0%)	0 (0.0%)	7	1 (14.3%)
imn (Isle of Man)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
irq (Iraq)	11	1 (9.1%)	0 (0.0%)	10 (90.9%)	0 (0.0%)	5	1 (20.0%)
isl (Iceland)	5	1 (20.0%)	1 (20.0%)	3 (60.0%)	0 (0.0%)	3	1 (33.3%)
lbn (Lebanon)	14	1 (7.1%)	2 (14.3%)	11 (78.6%)	0 (0.0%)	5	1 (20.0%)
mng (Mongolia)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	2	1 (50.0%)
mys (Malaysia)	9	1 (11.1%)	4 (44.4%)	4 (44.4%)	0 (0.0%)	5	1 (20.0%)
nzl (New Zealand)	26	1 (3.8%)	5 (19.2%)	19 (73.1%)	1 (3.8%)	9	2 (22.2%)
pak (Pakistan)	47	1 (2.1%)	4 (8.5%)	42 (89.4%)	0 (0.0%)	8	1 (12.5%)
pan (Panama)	59	1 (1.7%)	8 (13.6%)	50 (84.7%)	0 (0.0%)	7	1 (14.3%)
per (Peru)	8	1 (12.5%)	0 (0.0%)	6 (75.0%)	1 (12.5%)	6	2 (33.3%)
pri (Puerto Rico)	9	1 (11.1%)	2 (22.2%)	6 (66.7%)	0 (0.0%)	3	1 (33.3%)
tgo (Togo)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
alb (Albania)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
aut (Austria)	67	0 (0.0%)	11 (16.4%)	56 (83.6%)	0 (0.0%)	15	0 (0.0%)
aze (Azerbaijan)	23	0 (0.0%)	0 (0.0%)	23 (100.0%)	0 (0.0%)	2	0 (0.0%)
bfa (Burkina Faso)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
bgr (Bulgaria)	37	0 (0.0%)	8 (21.6%)	29 (78.4%)	0 (0.0%)	18	0 (0.0%)
bih (Bosnia and Herzegovina)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)
che (Switzerland)	69	0 (0.0%)	13 (18.8%)	56 (81.2%)	0 (0.0%)	16	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%)
fin (Finland)	9	0 (0.0%)	6 (66.7%)	3 (33.3%)	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%)
geo (Georgia)	16	0 (0.0%)	1 (6.3%)	15 (93.8%)	0 (0.0%)	3	0 (0.0%)
gha (Ghana)	25	0 (0.0%)	0 (0.0%)	25 (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)	5	0 (0.0%)	0 (0.0%)	5 (100.0%)	0 (0.0%)	2	0 (0.0%)
irl (Ireland)	37	0 (0.0%)	11 (29.7%)	26 (70.3%)	0 (0.0%)	13	0 (0.0%)
kaz (Kazakhstan)	43	0 (0.0%)	4 (9.3%)	39 (90.7%)	0 (0.0%)	11	0 (0.0%)
kgz (Kyrgyz Republic (Kyrgyzstan))	4	0 (0.0%)	0 (0.0%)	4 (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)	80	0 (0.0%)	51 (63.8%)	29 (36.3%)	0 (0.0%)	7	0 (0.0%)
kwt (Kuwait)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
lao (Laos)	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%)
ltu (Lithuania)	30	0 (0.0%)	3 (10.0%)	27 (90.0%)	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)	6	0 (0.0%)	2 (33.3%)	4 (66.7%)	0 (0.0%)	5	0 (0.0%)
mar (Morocco)	64	0 (0.0%)	1 (1.6%)	63 (98.4%)	0 (0.0%)	7	0 (0.0%)
mkd (Macedonia)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	2	0 (0.0%)
mmr (Myanmar)	7	0 (0.0%)	0 (0.0%)	7 (100.0%)	0 (0.0%)	3	0 (0.0%)
moz (Mozambique)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
mrt (Mauritania)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
nam (Namibia)	4	0 (0.0%)	1 (25.0%)	3 (75.0%)	0 (0.0%)	1	0 (0.0%)
nga (Nigeria)	39	0 (0.0%)	4 (10.3%)	35 (89.7%)	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)	25	0 (0.0%)	4 (16.0%)	21 (84.0%)	0 (0.0%)	6	0 (0.0%)
omn (Oman)	18	0 (0.0%)	0 (0.0%)	18 (100.0%)	0 (0.0%)	3	0 (0.0%)
prt (Portugal)	102	0 (0.0%)	24 (23.5%)	78 (76.5%)	0 (0.0%)	9	0 (0.0%)
pse (Palestinian Territory, Occupied)	7	0 (0.0%)	0 (0.0%)	7 (100.0%)	0 (0.0%)	1	0 (0.0%)
qat (Qatar)	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	0 (0.0%)	2	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)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	2	0 (0.0%)
svk (Slovak Republic)	11	0 (0.0%)	2 (18.2%)	9 (81.8%)	0 (0.0%)	6	0 (0.0%)
svn (Slovenia)	13	0 (0.0%)	2 (15.4%)	11 (84.6%)	0 (0.0%)	4	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%)
tto (Trinidad and Tobago)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
uga (Uganda)	12	0 (0.0%)	3 (25.0%)	9 (75.0%)	0 (0.0%)	4	0 (0.0%)
uzb (Uzbekistan)	7	0 (0.0%)	2 (28.6%)	5 (71.4%)	0 (0.0%)	4	0 (0.0%)