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)	2979	562 (18.9%)	341 (11.4%)	2064 (69.3%)	12 (0.4%)	475	233 (49.1%)
ind (India)	1610	410 (25.5%)	215 (13.4%)	984 (61.1%)	1 (0.1%)	64	18 (28.1%)
usa (United States)	4187	208 (5.0%)	1051 (25.1%)	2925 (69.9%)	3 (0.1%)	466	100 (21.5%)
egy (Egypt)	179	60 (33.5%)	4 (2.2%)	115 (64.2%)	0 (0.0%)	3	2 (66.7%)
arg (Argentina)	177	53 (29.9%)	17 (9.6%)	107 (60.5%)	0 (0.0%)	32	6 (18.8%)
pak (Pakistan)	164	38 (23.2%)	8 (4.9%)	118 (72.0%)	0 (0.0%)	16	4 (25.0%)
tha (Thailand)	438	38 (8.7%)	21 (4.8%)	379 (86.5%)	0 (0.0%)	26	9 (34.6%)
nld (Netherlands)	514	32 (6.2%)	178 (34.6%)	301 (58.6%)	3 (0.6%)	112	27 (24.1%)
rus (Russian Federation)	266	30 (11.3%)	41 (15.4%)	195 (73.3%)	0 (0.0%)	79	14 (17.7%)
ury (Uruguay)	70	29 (41.4%)	11 (15.7%)	28 (40.0%)	2 (2.9%)	36	18 (50.0%)
ita (Italy)	403	28 (6.9%)	17 (4.2%)	358 (88.8%)	0 (0.0%)	45	14 (31.1%)
deu (Germany)	1089	25 (2.3%)	299 (27.5%)	764 (70.2%)	1 (0.1%)	80	14 (17.5%)
bgd (Bangladesh)	57	23 (40.4%)	1 (1.8%)	33 (57.9%)	0 (0.0%)	27	12 (44.4%)
chl (Chile)	127	23 (18.1%)	3 (2.4%)	101 (79.5%)	0 (0.0%)	24	9 (37.5%)
zaf (South Africa)	278	23 (8.3%)	24 (8.6%)	230 (82.7%)	1 (0.4%)	50	16 (32.0%)
are (United Arab Emirates)	68	22 (32.4%)	20 (29.4%)	26 (38.2%)	0 (0.0%)	5	3 (60.0%)
kor (South Korea)	627	22 (3.5%)	358 (57.1%)	247 (39.4%)	0 (0.0%)	28	5 (17.9%)
aus (Australia)	578	21 (3.6%)	53 (9.2%)	504 (87.2%)	0 (0.0%)	53	15 (28.3%)
gbr (United Kingdom)	876	21 (2.4%)	135 (15.4%)	718 (82.0%)	2 (0.2%)	103	15 (14.6%)
irn (Iran)	162	21 (13.0%)	4 (2.5%)	136 (84.0%)	1 (0.6%)	17	3 (17.6%)
tur (Turkey)	277	18 (6.5%)	17 (6.1%)	242 (87.4%)	0 (0.0%)	28	6 (21.4%)
can (Canada)	423	17 (4.0%)	74 (17.5%)	331 (78.3%)	1 (0.2%)	61	15 (24.6%)
isr (Israel)	212	16 (7.5%)	4 (1.9%)	192 (90.6%)	0 (0.0%)	20	3 (15.0%)
rou (Romania)	126	16 (12.7%)	16 (12.7%)	94 (74.6%)	0 (0.0%)	21	7 (33.3%)
ago (Angola)	20	14 (70.0%)	0 (0.0%)	6 (30.0%)	0 (0.0%)	3	1 (33.3%)
pol (Poland)	168	14 (8.3%)	9 (5.4%)	145 (86.3%)	0 (0.0%)	47	11 (23.4%)
vnm (Vietnam)	78	14 (17.9%)	6 (7.7%)	58 (74.4%)	0 (0.0%)	9	5 (55.6%)
fra (France)	353	13 (3.7%)	59 (16.7%)	280 (79.3%)	1 (0.3%)	46	11 (23.9%)
idn (Indonesia)	60	12 (20.0%)	0 (0.0%)	48 (80.0%)	0 (0.0%)	20	10 (50.0%)
pry (Paraguay)	40	12 (30.0%)	8 (20.0%)	20 (50.0%)	0 (0.0%)	11	9 (81.8%)
ukr (Ukraine)	104	12 (11.5%)	11 (10.6%)	81 (77.9%)	0 (0.0%)	37	10 (27.0%)
mmr (Myanmar)	45	11 (24.4%)	2 (4.4%)	32 (71.1%)	0 (0.0%)	17	6 (35.3%)
sau (Saudi Arabia)	118	10 (8.5%)	2 (1.7%)	105 (89.0%)	1 (0.8%)	4	1 (25.0%)
bgr (Bulgaria)	41	9 (22.0%)	5 (12.2%)	27 (65.9%)	0 (0.0%)	21	5 (23.8%)
ken (Kenya)	110	9 (8.2%)	4 (3.6%)	97 (88.2%)	0 (0.0%)	13	4 (30.8%)
aut (Austria)	126	8 (6.3%)	11 (8.7%)	106 (84.1%)	1 (0.8%)	24	4 (16.7%)
chn (China)	496	8 (1.6%)	92 (18.5%)	396 (79.8%)	0 (0.0%)	38	3 (7.9%)
cze (Czech Republic)	104	8 (7.7%)	15 (14.4%)	81 (77.9%)	0 (0.0%)	31	6 (19.4%)
swe (Sweden)	237	8 (3.4%)	34 (14.3%)	194 (81.9%)	1 (0.4%)	42	8 (19.0%)
che (Switzerland)	139	7 (5.0%)	44 (31.7%)	88 (63.3%)	0 (0.0%)	30	5 (16.7%)
mex (Mexico)	184	7 (3.8%)	18 (9.8%)	159 (86.4%)	0 (0.0%)	23	4 (17.4%)
phl (Philippines)	47	7 (14.9%)	1 (2.1%)	39 (83.0%)	0 (0.0%)	10	5 (50.0%)
jpn (Japan)	298	6 (2.0%)	58 (19.5%)	234 (78.5%)	0 (0.0%)	52	6 (11.5%)
mus (Mauritius)	79	6 (7.6%)	5 (6.3%)	68 (86.1%)	0 (0.0%)	10	5 (50.0%)
tza (Tanzania)	51	6 (11.8%)	4 (7.8%)	41 (80.4%)	0 (0.0%)	15	5 (33.3%)
hti (Haiti)	13	5 (38.5%)	1 (7.7%)	7 (53.8%)	0 (0.0%)	3	2 (66.7%)
irl (Ireland)	68	5 (7.4%)	15 (22.1%)	48 (70.6%)	0 (0.0%)	16	2 (12.5%)
lka (Sri Lanka)	181	5 (2.8%)	7 (3.9%)	169 (93.4%)	0 (0.0%)	7	2 (28.6%)
rwa (Rwanda)	6	5 (83.3%)	0 (0.0%)	1 (16.7%)	0 (0.0%)	2	2 (100.0%)
bol (Bolivia)	36	4 (11.1%)	6 (16.7%)	26 (72.2%)	0 (0.0%)	3	2 (66.7%)
gnq (Equatorial Guinea)	5	4 (80.0%)	0 (0.0%)	1 (20.0%)	0 (0.0%)	2	2 (100.0%)
irq (Iraq)	10	4 (40.0%)	0 (0.0%)	6 (60.0%)	0 (0.0%)	7	3 (42.9%)
per (Peru)	31	4 (12.9%)	0 (0.0%)	27 (87.1%)	0 (0.0%)	5	3 (60.0%)
uga (Uganda)	6	4 (66.7%)	0 (0.0%)	2 (33.3%)	0 (0.0%)	3	2 (66.7%)
alb (Albania)	6	3 (50.0%)	0 (0.0%)	3 (50.0%)	0 (0.0%)	5	2 (40.0%)
cri (Costa Rica)	17	3 (17.6%)	1 (5.9%)	13 (76.5%)	0 (0.0%)	11	3 (27.3%)
dnk (Denmark)	74	3 (4.1%)	9 (12.2%)	62 (83.8%)	0 (0.0%)	22	2 (9.1%)
esp (Spain)	135	3 (2.2%)	11 (8.1%)	121 (89.6%)	0 (0.0%)	29	3 (10.3%)
hkg (Hong Kong)	30	3 (10.0%)	3 (10.0%)	23 (76.7%)	1 (3.3%)	18	3 (16.7%)
khm (Cambodia, Kingdom of)	12	3 (25.0%)	0 (0.0%)	9 (75.0%)	0 (0.0%)	8	3 (37.5%)
nga (Nigeria)	25	3 (12.0%)	1 (4.0%)	21 (84.0%)	0 (0.0%)	14	3 (21.4%)
npl (Nepal)	19	3 (15.8%)	0 (0.0%)	16 (84.2%)	0 (0.0%)	5	2 (40.0%)
nzl (New Zealand)	142	3 (2.1%)	33 (23.2%)	106 (74.6%)	0 (0.0%)	21	2 (9.5%)
twn (Taiwan)	104	3 (2.9%)	13 (12.5%)	88 (84.6%)	0 (0.0%)	10	3 (30.0%)
ven (Venezuela)	69	3 (4.3%)	3 (4.3%)	63 (91.3%)	0 (0.0%)	6	2 (33.3%)
aze (Azerbaijan)	22	2 (9.1%)	0 (0.0%)	20 (90.9%)	0 (0.0%)	4	2 (50.0%)
bih (Bosnia and Herzegovina)	10	2 (20.0%)	0 (0.0%)	8 (80.0%)	0 (0.0%)	4	2 (50.0%)
hun (Hungary)	96	2 (2.1%)	3 (3.1%)	91 (94.8%)	0 (0.0%)	10	2 (20.0%)
isl (Iceland)	16	2 (12.5%)	5 (31.3%)	9 (56.3%)	0 (0.0%)	11	2 (18.2%)
lux (Luxembourg)	44	2 (4.5%)	2 (4.5%)	40 (90.9%)	0 (0.0%)	8	2 (25.0%)
mar (Morocco)	70	2 (2.9%)	0 (0.0%)	68 (97.1%)	0 (0.0%)	5	2 (40.0%)
mwi (Malawi)	9	2 (22.2%)	0 (0.0%)	7 (77.8%)	0 (0.0%)	5	2 (40.0%)
mys (Malaysia)	84	2 (2.4%)	6 (7.1%)	76 (90.5%)	0 (0.0%)	9	2 (22.2%)
nor (Norway)	46	2 (4.3%)	7 (15.2%)	37 (80.4%)	0 (0.0%)	11	2 (18.2%)
reu (Reunion [French])	10	2 (20.0%)	0 (0.0%)	8 (80.0%)	0 (0.0%)	2	1 (50.0%)
sgp (Singapore)	52	2 (3.8%)	12 (23.1%)	38 (73.1%)	0 (0.0%)	23	2 (8.7%)
bel (Belgium)	35	1 (2.9%)	7 (20.0%)	27 (77.1%)	0 (0.0%)	7	1 (14.3%)
brb (Barbados)	5	1 (20.0%)	0 (0.0%)	4 (80.0%)	0 (0.0%)	2	1 (50.0%)
caf (Central African Republic)	5	1 (20.0%)	0 (0.0%)	4 (80.0%)	0 (0.0%)	2	1 (50.0%)
dma (Dominica)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
dom (Dominican Republic)	22	1 (4.5%)	3 (13.6%)	18 (81.8%)	0 (0.0%)	3	1 (33.3%)
fin (Finland)	37	1 (2.7%)	4 (10.8%)	32 (86.5%)	0 (0.0%)	11	1 (9.1%)
gha (Ghana)	14	1 (7.1%)	0 (0.0%)	13 (92.9%)	0 (0.0%)	5	1 (20.0%)
hrv (Croatia)	31	1 (3.2%)	3 (9.7%)	27 (87.1%)	0 (0.0%)	7	1 (14.3%)
jor (Jordan)	5	1 (20.0%)	0 (0.0%)	4 (80.0%)	0 (0.0%)	2	1 (50.0%)
lby (Libya)	4	1 (25.0%)	1 (25.0%)	2 (50.0%)	0 (0.0%)	2	1 (50.0%)
lie (Liechtenstein)	3	1 (33.3%)	0 (0.0%)	2 (66.7%)	0 (0.0%)	2	1 (50.0%)
ltu (Lithuania)	16	1 (6.3%)	5 (31.3%)	10 (62.5%)	0 (0.0%)	9	1 (11.1%)
lva (Latvia)	21	1 (4.8%)	2 (9.5%)	18 (85.7%)	0 (0.0%)	9	1 (11.1%)
pse (Palestinian Territory, Occupied)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	2	1 (50.0%)
slv (El Salvador)	4	1 (25.0%)	0 (0.0%)	3 (75.0%)	0 (0.0%)	3	1 (33.3%)
som (Somalia)	4	1 (25.0%)	0 (0.0%)	3 (75.0%)	0 (0.0%)	1	1 (100.0%)
srb (Serbia)	22	1 (4.5%)	0 (0.0%)	21 (95.5%)	0 (0.0%)	8	1 (12.5%)
svk (Slovak Republic)	16	1 (6.3%)	0 (0.0%)	15 (93.8%)	0 (0.0%)	9	1 (11.1%)
svn (Slovenia)	6	1 (16.7%)	2 (33.3%)	3 (50.0%)	0 (0.0%)	4	1 (25.0%)
tun (Tunisia)	5	1 (20.0%)	0 (0.0%)	4 (80.0%)	0 (0.0%)	3	1 (33.3%)
zwe (Zimbabwe)	8	1 (12.5%)	0 (0.0%)	7 (87.5%)	0 (0.0%)	3	1 (33.3%)
ala (Åland Islands)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
arm (Armenia)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
atg (Antigua and Barbuda)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
bdi (Burundi)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
ben (Benin)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	3	0 (0.0%)
bhr (Bahrain)	28	0 (0.0%)	0 (0.0%)	28 (100.0%)	0 (0.0%)	2	0 (0.0%)
blr (Belarus)	16	0 (0.0%)	0 (0.0%)	16 (100.0%)	0 (0.0%)	1	0 (0.0%)
bmu (Bermuda)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
btn (Bhutan)	8	0 (0.0%)	3 (37.5%)	5 (62.5%)	0 (0.0%)	3	0 (0.0%)
civ (Ivory Coast (Cote D'Ivoire))	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
cmr (Cameroon)	7	0 (0.0%)	0 (0.0%)	7 (100.0%)	0 (0.0%)	3	0 (0.0%)
col (Colombia)	5	0 (0.0%)	1 (20.0%)	4 (80.0%)	0 (0.0%)	4	0 (0.0%)
cym (Cayman Islands)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
cyp (Cyprus)	5	0 (0.0%)	1 (20.0%)	4 (80.0%)	0 (0.0%)	3	0 (0.0%)
dza (Algeria)	8	0 (0.0%)	0 (0.0%)	8 (100.0%)	0 (0.0%)	1	0 (0.0%)
est (Estonia)	4	0 (0.0%)	2 (50.0%)	2 (50.0%)	0 (0.0%)	4	0 (0.0%)
eth (Ethiopia)	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	0 (0.0%)	1	0 (0.0%)
fji (Fiji)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	3	0 (0.0%)
geo (Georgia)	7	0 (0.0%)	2 (28.6%)	5 (71.4%)	0 (0.0%)	2	0 (0.0%)
grc (Greece)	157	0 (0.0%)	25 (15.9%)	132 (84.1%)	0 (0.0%)	11	0 (0.0%)
grd (Grenada)	3	0 (0.0%)	2 (66.7%)	1 (33.3%)	0 (0.0%)	2	0 (0.0%)
gtm (Guatemala)	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	0 (0.0%)	4	0 (0.0%)
gum (Guam [US])	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	0 (0.0%)	2	0 (0.0%)
jam (Jamaica)	6	0 (0.0%)	0 (0.0%)	6 (100.0%)	0 (0.0%)	2	0 (0.0%)
kaz (Kazakhstan)	15	0 (0.0%)	0 (0.0%)	15 (100.0%)	0 (0.0%)	4	0 (0.0%)
kwt (Kuwait)	8	0 (0.0%)	0 (0.0%)	8 (100.0%)	0 (0.0%)	1	0 (0.0%)
lbn (Lebanon)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	3	0 (0.0%)
lbr (Liberia)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
mda (Moldova, Republic of)	18	0 (0.0%)	11 (61.1%)	7 (38.9%)	0 (0.0%)	6	0 (0.0%)
mdg (Madagascar)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
mdv (Maldives)	29	0 (0.0%)	0 (0.0%)	29 (100.0%)	0 (0.0%)	1	0 (0.0%)
mkd (Macedonia)	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	0 (0.0%)	1	0 (0.0%)
mlt (Malta)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
ncl (New Caledonia [French])	2	0 (0.0%)	1 (50.0%)	1 (50.0%)	0 (0.0%)	1	0 (0.0%)
nic (Nicaragua)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
omn (Oman)	11	0 (0.0%)	1 (9.1%)	10 (90.9%)	0 (0.0%)	2	0 (0.0%)
pan (Panama)	54	0 (0.0%)	5 (9.3%)	49 (90.7%)	0 (0.0%)	15	0 (0.0%)
png (Papua New Guinea)	6	0 (0.0%)	0 (0.0%)	6 (100.0%)	0 (0.0%)	3	0 (0.0%)
pri (Puerto Rico)	4	0 (0.0%)	1 (25.0%)	3 (75.0%)	0 (0.0%)	4	0 (0.0%)
prt (Portugal)	82	0 (0.0%)	13 (15.9%)	69 (84.1%)	0 (0.0%)	10	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)	5	0 (0.0%)	0 (0.0%)	5 (100.0%)	0 (0.0%)	2	0 (0.0%)
sen (Senegal)	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	0 (0.0%)	1	0 (0.0%)
syc (Seychelles)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)
syr (Syria)	27	0 (0.0%)	0 (0.0%)	27 (100.0%)	0 (0.0%)	2	0 (0.0%)
tca (Turks and Caicos Islands)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
tgo (Togo)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
tto (Trinidad and Tobago)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
yem (Yemen)	14	0 (0.0%)	0 (0.0%)	14 (100.0%)	0 (0.0%)	2	0 (0.0%)
zmb (Zambia)	15	0 (0.0%)	0 (0.0%)	15 (100.0%)	0 (0.0%)	3	0 (0.0%)

Center for Applied Internet Data Analysis    |   Based at the University of California's San Diego Supercomputer Center

  Last Modified: