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)	2503	413 (16.5%)	533 (21.3%)	1522 (60.8%)	35 (1.4%)	562	244 (43.4%)
ind (India)	587	267 (45.5%)	65 (11.1%)	250 (42.6%)	5 (0.9%)	49	18 (36.7%)
usa (United States)	1987	164 (8.3%)	559 (28.1%)	1263 (63.6%)	1 (0.1%)	335	68 (20.3%)
chl (Chile)	328	58 (17.7%)	13 (4.0%)	257 (78.4%)	0 (0.0%)	25	7 (28.0%)
egy (Egypt)	147	40 (27.2%)	0 (0.0%)	107 (72.8%)	0 (0.0%)	6	2 (33.3%)
zaf (South Africa)	192	33 (17.2%)	10 (5.2%)	148 (77.1%)	1 (0.5%)	44	19 (43.2%)
grc (Greece)	109	30 (27.5%)	10 (9.2%)	69 (63.3%)	0 (0.0%)	7	1 (14.3%)
ita (Italy)	314	28 (8.9%)	20 (6.4%)	265 (84.4%)	1 (0.3%)	50	13 (26.0%)
arg (Argentina)	139	27 (19.4%)	13 (9.4%)	98 (70.5%)	1 (0.7%)	25	5 (20.0%)
tur (Turkey)	579	27 (4.7%)	63 (10.9%)	489 (84.5%)	0 (0.0%)	82	16 (19.5%)
col (Colombia)	94	23 (24.5%)	5 (5.3%)	66 (70.2%)	0 (0.0%)	18	9 (50.0%)
gbr (United Kingdom)	333	23 (6.9%)	61 (18.3%)	249 (74.8%)	0 (0.0%)	69	15 (21.7%)
idn (Indonesia)	45	22 (48.9%)	10 (22.2%)	13 (28.9%)	0 (0.0%)	24	11 (45.8%)
nld (Netherlands)	352	22 (6.3%)	78 (22.2%)	248 (70.5%)	4 (1.1%)	74	16 (21.6%)
chn (China)	399	19 (4.8%)	98 (24.6%)	282 (70.7%)	0 (0.0%)	26	9 (34.6%)
npl (Nepal)	52	17 (32.7%)	9 (17.3%)	26 (50.0%)	0 (0.0%)	10	5 (50.0%)
pry (Paraguay)	40	17 (42.5%)	8 (20.0%)	15 (37.5%)	0 (0.0%)	14	10 (71.4%)
tha (Thailand)	136	16 (11.8%)	6 (4.4%)	114 (83.8%)	0 (0.0%)	18	9 (50.0%)
ven (Venezuela)	87	16 (18.4%)	8 (9.2%)	63 (72.4%)	0 (0.0%)	13	5 (38.5%)
mdv (Maldives)	20	15 (75.0%)	1 (5.0%)	4 (20.0%)	0 (0.0%)	3	2 (66.7%)
ukr (Ukraine)	43	15 (34.9%)	7 (16.3%)	21 (48.8%)	0 (0.0%)	23	7 (30.4%)
isr (Israel)	138	14 (10.1%)	21 (15.2%)	103 (74.6%)	0 (0.0%)	10	1 (10.0%)
ken (Kenya)	108	14 (13.0%)	6 (5.6%)	86 (79.6%)	2 (1.9%)	18	7 (38.9%)
rus (Russian Federation)	112	14 (12.5%)	16 (14.3%)	82 (73.2%)	0 (0.0%)	38	9 (23.7%)
twn (Taiwan)	108	13 (12.0%)	3 (2.8%)	92 (85.2%)	0 (0.0%)	7	2 (28.6%)
can (Canada)	184	12 (6.5%)	26 (14.1%)	146 (79.3%)	0 (0.0%)	39	6 (15.4%)
rou (Romania)	103	12 (11.7%)	39 (37.9%)	52 (50.5%)	0 (0.0%)	17	2 (11.8%)
dnk (Denmark)	28	10 (35.7%)	5 (17.9%)	13 (46.4%)	0 (0.0%)	11	3 (27.3%)
jpn (Japan)	242	10 (4.1%)	46 (19.0%)	186 (76.9%)	0 (0.0%)	43	7 (16.3%)
phl (Philippines)	124	10 (8.1%)	16 (12.9%)	98 (79.0%)	0 (0.0%)	18	6 (33.3%)
vnm (Vietnam)	92	10 (10.9%)	8 (8.7%)	74 (80.4%)	0 (0.0%)	12	6 (50.0%)
aus (Australia)	142	8 (5.6%)	27 (19.0%)	107 (75.4%)	0 (0.0%)	36	7 (19.4%)
tza (Tanzania)	24	8 (33.3%)	1 (4.2%)	15 (62.5%)	0 (0.0%)	12	7 (58.3%)
mex (Mexico)	221	7 (3.2%)	23 (10.4%)	191 (86.4%)	0 (0.0%)	24	6 (25.0%)
pan (Panama)	68	7 (10.3%)	3 (4.4%)	58 (85.3%)	0 (0.0%)	8	5 (62.5%)
deu (Germany)	500	6 (1.2%)	80 (16.0%)	414 (82.8%)	0 (0.0%)	71	5 (7.0%)
hkg (Hong Kong)	28	6 (21.4%)	9 (32.1%)	12 (42.9%)	1 (3.6%)	17	7 (41.2%)
sau (Saudi Arabia)	369	6 (1.6%)	28 (7.6%)	332 (90.0%)	3 (0.8%)	9	2 (22.2%)
bgd (Bangladesh)	19	5 (26.3%)	0 (0.0%)	14 (73.7%)	0 (0.0%)	10	4 (40.0%)
ecu (Ecuador)	26	5 (19.2%)	2 (7.7%)	19 (73.1%)	0 (0.0%)	10	2 (20.0%)
mus (Mauritius)	11	5 (45.5%)	0 (0.0%)	6 (54.5%)	0 (0.0%)	9	4 (44.4%)
tun (Tunisia)	5	5 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
ury (Uruguay)	116	5 (4.3%)	10 (8.6%)	101 (87.1%)	0 (0.0%)	6	2 (33.3%)
bol (Bolivia)	47	4 (8.5%)	5 (10.6%)	38 (80.9%)	0 (0.0%)	4	2 (50.0%)
btn (Bhutan)	8	4 (50.0%)	1 (12.5%)	3 (37.5%)	0 (0.0%)	1	1 (100.0%)
dza (Algeria)	11	4 (36.4%)	0 (0.0%)	7 (63.6%)	0 (0.0%)	2	1 (50.0%)
esp (Spain)	117	4 (3.4%)	8 (6.8%)	105 (89.7%)	0 (0.0%)	17	3 (17.6%)
fra (France)	163	4 (2.5%)	52 (31.9%)	107 (65.6%)	0 (0.0%)	29	4 (13.8%)
irn (Iran)	247	4 (1.6%)	8 (3.2%)	235 (95.1%)	0 (0.0%)	16	3 (18.8%)
pol (Poland)	195	4 (2.1%)	12 (6.2%)	179 (91.8%)	0 (0.0%)	36	3 (8.3%)
are (United Arab Emirates)	30	3 (10.0%)	5 (16.7%)	21 (70.0%)	1 (3.3%)	6	2 (33.3%)
bgr (Bulgaria)	39	3 (7.7%)	5 (12.8%)	31 (79.5%)	0 (0.0%)	18	2 (11.1%)
mda (Moldova, Republic of)	28	3 (10.7%)	7 (25.0%)	17 (60.7%)	1 (3.6%)	9	3 (33.3%)
srb (Serbia)	49	3 (6.1%)	3 (6.1%)	43 (87.8%)	0 (0.0%)	11	2 (18.2%)
swe (Sweden)	67	3 (4.5%)	17 (25.4%)	47 (70.1%)	0 (0.0%)	23	3 (13.0%)
cri (Costa Rica)	15	2 (13.3%)	1 (6.7%)	12 (80.0%)	0 (0.0%)	8	2 (25.0%)
gum (Guam [US])	14	2 (14.3%)	7 (50.0%)	5 (35.7%)	0 (0.0%)	5	1 (20.0%)
lux (Luxembourg)	11	2 (18.2%)	7 (63.6%)	2 (18.2%)	0 (0.0%)	6	2 (33.3%)
sur (Suriname)	2	2 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
uga (Uganda)	11	2 (18.2%)	0 (0.0%)	9 (81.8%)	0 (0.0%)	3	2 (66.7%)
ago (Angola)	158	1 (0.6%)	3 (1.9%)	154 (97.5%)	0 (0.0%)	6	1 (16.7%)
atg (Antigua and Barbuda)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
bhr (Bahrain)	59	1 (1.7%)	4 (6.8%)	54 (91.5%)	0 (0.0%)	4	1 (25.0%)
bhs (Bahamas)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
che (Switzerland)	57	1 (1.8%)	18 (31.6%)	38 (66.7%)	0 (0.0%)	22	1 (4.5%)
cze (Czech Republic)	31	1 (3.2%)	1 (3.2%)	29 (93.5%)	0 (0.0%)	10	1 (10.0%)
dji (Djibouti)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
est (Estonia)	3	1 (33.3%)	2 (66.7%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
eth (Ethiopia)	19	1 (5.3%)	0 (0.0%)	18 (94.7%)	0 (0.0%)	1	1 (100.0%)
gin (Guinea)	3	1 (33.3%)	0 (0.0%)	2 (66.7%)	0 (0.0%)	2	1 (50.0%)
isl (Iceland)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
kna (Saint Kitts and Nevis)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
kwt (Kuwait)	3	1 (33.3%)	2 (66.7%)	0 (0.0%)	0 (0.0%)	2	1 (50.0%)
mkd (Macedonia)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
pak (Pakistan)	60	1 (1.7%)	3 (5.0%)	56 (93.3%)	0 (0.0%)	8	1 (12.5%)
per (Peru)	8	1 (12.5%)	1 (12.5%)	6 (75.0%)	0 (0.0%)	6	1 (16.7%)
png (Papua New Guinea)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
prt (Portugal)	54	1 (1.9%)	14 (25.9%)	38 (70.4%)	1 (1.9%)	8	2 (25.0%)
rwa (Rwanda)	3	1 (33.3%)	0 (0.0%)	2 (66.7%)	0 (0.0%)	3	1 (33.3%)
sgp (Singapore)	35	1 (2.9%)	11 (31.4%)	23 (65.7%)	0 (0.0%)	18	1 (5.6%)
alb (Albania)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
arm (Armenia)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
aut (Austria)	74	0 (0.0%)	10 (13.5%)	64 (86.5%)	0 (0.0%)	16	0 (0.0%)
aze (Azerbaijan)	8	0 (0.0%)	0 (0.0%)	8 (100.0%)	0 (0.0%)	3	0 (0.0%)
bel (Belgium)	21	0 (0.0%)	5 (23.8%)	16 (76.2%)	0 (0.0%)	6	0 (0.0%)
bih (Bosnia and Herzegovina)	4	0 (0.0%)	1 (25.0%)	3 (75.0%)	0 (0.0%)	3	0 (0.0%)
blr (Belarus)	26	0 (0.0%)	0 (0.0%)	26 (100.0%)	0 (0.0%)	4	0 (0.0%)
bmu (Bermuda)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
brb (Barbados)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
cmr (Cameroon)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	3	0 (0.0%)
cod (Congo, The Democratic Republic of the)	2	0 (0.0%)	1 (50.0%)	1 (50.0%)	0 (0.0%)	1	0 (0.0%)
cyp (Cyprus)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	2	0 (0.0%)
dma (Dominica)	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	0 (0.0%)	1	0 (0.0%)
dom (Dominican Republic)	21	0 (0.0%)	5 (23.8%)	16 (76.2%)	0 (0.0%)	2	0 (0.0%)
fin (Finland)	15	0 (0.0%)	12 (80.0%)	3 (20.0%)	0 (0.0%)	5	0 (0.0%)
fji (Fiji)	10	0 (0.0%)	5 (50.0%)	5 (50.0%)	0 (0.0%)	3	0 (0.0%)
geo (Georgia)	6	0 (0.0%)	1 (16.7%)	5 (83.3%)	0 (0.0%)	2	0 (0.0%)
gha (Ghana)	28	0 (0.0%)	0 (0.0%)	28 (100.0%)	0 (0.0%)	3	0 (0.0%)
hnd (Honduras)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
hrv (Croatia)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
hun (Hungary)	25	0 (0.0%)	10 (40.0%)	15 (60.0%)	0 (0.0%)	8	0 (0.0%)
imn (Isle of Man)	5	0 (0.0%)	0 (0.0%)	5 (100.0%)	0 (0.0%)	2	0 (0.0%)
irl (Ireland)	64	0 (0.0%)	13 (20.3%)	51 (79.7%)	0 (0.0%)	14	0 (0.0%)
irq (Iraq)	6	0 (0.0%)	0 (0.0%)	6 (100.0%)	0 (0.0%)	2	0 (0.0%)
jor (Jordan)	4	0 (0.0%)	2 (50.0%)	2 (50.0%)	0 (0.0%)	3	0 (0.0%)
kaz (Kazakhstan)	11	0 (0.0%)	0 (0.0%)	11 (100.0%)	0 (0.0%)	4	0 (0.0%)
kgz (Kyrgyz Republic (Kyrgyzstan))	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
khm (Cambodia, Kingdom of)	9	0 (0.0%)	0 (0.0%)	9 (100.0%)	0 (0.0%)	6	0 (0.0%)
kor (South Korea)	79	0 (0.0%)	39 (49.4%)	40 (50.6%)	0 (0.0%)	11	0 (0.0%)
lby (Libya)	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	0 (0.0%)	2	0 (0.0%)
lca (Saint Lucia)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
lie (Liechtenstein)	2	0 (0.0%)	2 (100.0%)	0 (0.0%)	0 (0.0%)	2	0 (0.0%)
lka (Sri Lanka)	42	0 (0.0%)	4 (9.5%)	38 (90.5%)	0 (0.0%)	3	0 (0.0%)
ltu (Lithuania)	23	0 (0.0%)	2 (8.7%)	21 (91.3%)	0 (0.0%)	5	0 (0.0%)
lva (Latvia)	5	0 (0.0%)	4 (80.0%)	1 (20.0%)	0 (0.0%)	1	0 (0.0%)
mar (Morocco)	106	0 (0.0%)	1 (0.9%)	105 (99.1%)	0 (0.0%)	6	0 (0.0%)
mli (Mali)	2	0 (0.0%)	2 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)
mlt (Malta)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	2	0 (0.0%)
mmr (Myanmar)	10	0 (0.0%)	0 (0.0%)	10 (100.0%)	0 (0.0%)	4	0 (0.0%)
mng (Mongolia)	2	0 (0.0%)	0 (0.0%)	2 (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%)
moz (Mozambique)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
mrt (Mauritania)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
mwi (Malawi)	16	0 (0.0%)	3 (18.8%)	13 (81.3%)	0 (0.0%)	3	0 (0.0%)
mys (Malaysia)	13	0 (0.0%)	4 (30.8%)	9 (69.2%)	0 (0.0%)	5	0 (0.0%)
nam (Namibia)	4	0 (0.0%)	1 (25.0%)	3 (75.0%)	0 (0.0%)	1	0 (0.0%)
nga (Nigeria)	19	0 (0.0%)	1 (5.3%)	18 (94.7%)	0 (0.0%)	5	0 (0.0%)
nor (Norway)	27	0 (0.0%)	11 (40.7%)	16 (59.3%)	0 (0.0%)	9	0 (0.0%)
nzl (New Zealand)	59	0 (0.0%)	10 (16.9%)	49 (83.1%)	0 (0.0%)	10	0 (0.0%)
omn (Oman)	13	0 (0.0%)	1 (7.7%)	12 (92.3%)	0 (0.0%)	2	0 (0.0%)
pri (Puerto Rico)	6	0 (0.0%)	3 (50.0%)	3 (50.0%)	0 (0.0%)	3	0 (0.0%)
pse (Palestinian Territory, Occupied)	29	0 (0.0%)	0 (0.0%)	29 (100.0%)	0 (0.0%)	1	0 (0.0%)
qat (Qatar)	5	0 (0.0%)	0 (0.0%)	5 (100.0%)	0 (0.0%)	1	0 (0.0%)
reu (Reunion [French])	6	0 (0.0%)	1 (16.7%)	5 (83.3%)	0 (0.0%)	4	0 (0.0%)
som (Somalia)	12	0 (0.0%)	0 (0.0%)	12 (100.0%)	0 (0.0%)	6	0 (0.0%)
svk (Slovak Republic)	12	0 (0.0%)	1 (8.3%)	11 (91.7%)	0 (0.0%)	7	0 (0.0%)
svn (Slovenia)	26	0 (0.0%)	2 (7.7%)	24 (92.3%)	0 (0.0%)	8	0 (0.0%)
syc (Seychelles)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)
syr (Syria)	18	0 (0.0%)	0 (0.0%)	18 (100.0%)	0 (0.0%)	1	0 (0.0%)
tcd (Chad)	7	0 (0.0%)	4 (57.1%)	2 (28.6%)	1 (14.3%)	2	1 (50.0%)
tto (Trinidad and Tobago)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
uzb (Uzbekistan)	20	0 (0.0%)	0 (0.0%)	20 (100.0%)	0 (0.0%)	3	0 (0.0%)
vut (Vanuatu)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)