[menog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Nov 21 18:03:23 UTC 2025
This is an automated weekly mailing describing the state of the Global
IPv4 Routing Table as seen from APNIC's router in Japan.
The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG
UKNOF, TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG and the RIPE Routing WG.
Daily listings are sent to bgp-stats at lists.apnic.net.
For historical data, please see https://thyme.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.
IPv4 Routing Table Report 04:00 +10GMT Sat 22 Nov, 2025
IPv4 BGP Table (Global) as seen at Japan.
Report Website: https://thyme.apnic.net
Detailed Analysis: https://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 1016324
Prefixes after maximum aggregation (per Origin AS): 393514
Deaggregation factor: 2.58
Unique aggregates announced (without unneeded subnets): 503075
Number of IPv4 prefixes with a valid ROA: 585643
Number of IPv4 prefixes with an invalid ROA: 1437
Number of IPv4 prefixes with no ROA: 429244
Total ASes present in the Internet Routing Table: 77554
Prefixes per ASN: 13.10
Origin-only ASes present in the Internet Routing Table: 66599
Origin ASes announcing only one prefix: 27087
Transit ASes present in the Internet Routing Table: 10955
Transit-only ASes present in the Internet Routing Table: 549
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 57
Max AS path prepend of ASN ( 37447) 53
Prefixes from unregistered ASNs in the Routing Table: 1028
Number of instances of unregistered ASNs: 1067
Number of 32-bit ASNs allocated by the RIRs: 48025
Number of 32-bit ASNs visible in the Routing Table: 39333
Prefixes from 32-bit ASNs in the Routing Table: 216292
Number of bogon 32-bit ASNs visible in the Routing Table: 112
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 489
Number of addresses announced to Internet: 3099978368
Equivalent to 184 /8s, 197 /16s and 234 /24s
Percentage of available address space announced: 83.7
Percentage of allocated address space announced: 83.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.6
Total number of prefixes smaller than registry allocations: 333091
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 274000
Total APNIC prefixes after maximum aggregation: 81255
APNIC Deaggregation factor: 3.37
Prefixes being announced from the APNIC address blocks: 262023
Unique aggregates announced from the APNIC address blocks: 106374
APNIC Region origin ASes present in the Internet Routing Table: 14898
APNIC Prefixes per ASN: 17.59
APNIC Region origin ASes announcing only one prefix: 4538
APNIC Region transit ASes present in the Internet Routing Table: 1975
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 34
Number of APNIC region 32-bit ASNs visible in the Routing Table: 10450
Number of APNIC addresses announced to Internet: 752650752
Equivalent to 44 /8s, 220 /16s and 138 /24s
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-64098, 64297-64395, 131072-155961
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 298470
Total ARIN prefixes after maximum aggregation: 134034
ARIN Deaggregation factor: 2.23
Prefixes being announced from the ARIN address blocks: 298411
Unique aggregates announced from the ARIN address blocks: 145507
ARIN Region origin ASes present in the Internet Routing Table: 19366
ARIN Prefixes per ASN: 15.41
ARIN Region origin ASes announcing only one prefix: 7088
ARIN Region transit ASes present in the Internet Routing Table: 1945
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 28
Number of ARIN region 32-bit ASNs visible in the Routing Table: 5406
Number of ARIN addresses announced to Internet: 1337553152
Equivalent to 79 /8s, 185 /16s and 113 /24s
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 62464-63487, 64198-64296, 393216-402332
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8,
54/8, 55/8, 56/8, 63/8, 64/8, 65/8, 66/8,
67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8,
74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8,
100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8,
131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8,
139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8,
148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8,
159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8,
167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8,
184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8,
207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 282107
Total RIPE prefixes after maximum aggregation: 139903
RIPE Deaggregation factor: 2.02
Prefixes being announced from the RIPE address blocks: 282728
Unique aggregates announced from the RIPE address blocks: 183233
RIPE Region origin ASes present in the Internet Routing Table: 29112
RIPE Prefixes per ASN: 9.71
RIPE Region origin ASes announcing only one prefix: 12075
RIPE Region transit ASes present in the Internet Routing Table: 3962
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 12824
Number of RIPE addresses announced to Internet: 735536768
Equivalent to 43 /8s, 215 /16s and 102 /24s
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
59392-61439, 61952-62463, 64396-64495
196608-216475
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
53/8, 57/8, 62/8, 77/8, 78/8, 79/8, 80/8,
81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8,
88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8,
95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8,
185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 125316
Total LACNIC prefixes after maximum aggregation: 30744
LACNIC Deaggregation factor: 4.08
Prefixes being announced from the LACNIC address blocks: 121373
Unique aggregates announced from the LACNIC address blocks: 49577
LACNIC Region origin ASes present in the Internet Routing Table: 11301
LACNIC Prefixes per ASN: 10.74
LACNIC Region origin ASes announcing only one prefix: 2662
LACNIC Region transit ASes present in the Internet Routing Table: 2531
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 38
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9300
Number of LACNIC addresses announced to Internet: 170775808
Equivalent to 10 /8s, 45 /16s and 213 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-274844 + ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 35403
Total AfriNIC prefixes after maximum aggregation: 6889
AfriNIC Deaggregation factor: 5.14
Prefixes being announced from the AfriNIC address blocks: 51300
Unique aggregates announced from the AfriNIC address blocks: 17984
AfriNIC Region origin ASes present in the Internet Routing Table: 1988
AfriNIC Prefixes per ASN: 25.80
AfriNIC Region origin ASes announcing only one prefix: 724
AfriNIC Region transit ASes present in the Internet Routing Table: 378
Average AfriNIC Region AS path length visible: 5.3
Max AfriNIC Region AS path length visible: 57
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1353
Number of AfriNIC addresses announced to Internet: 103214336
Equivalent to 6 /8s, 38 /16s and 237 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
9808 13465 8760 120 CHINAMOBILE-CN China Mobile Communication
7545 6068 833 595 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 5013 4193 77 ERX-CERNET-BKB China Education and Resear
9498 4560 540 334 BBIL-AP BHARTI Airtel Ltd., IN
7552 3982 1332 28 VIETEL-AS-AP Viettel Group, VN
7713 3706 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones
45899 3325 1869 99 VNPT-AS-VN VNPT Corp, VN
56046 3246 827 182 CMNET-JIANGSU-AP China Mobile communicati
24560 2947 865 503 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
140292 2493 274 1922 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK CH
Complete listing at https://thyme.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 14140 37184 5381 AMAZON-02, US
11492 4789 317 804 CABLEONE, US
22773 4733 3113 367 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3861 286 85 VIASAT-SP-BACKBONE, US
6327 3691 1320 83 SHAW, CA
396982 3299 4860 477 GOOGLE-CLOUD-PLATFORM, US
749 3217 54766 2468 DNIC-AS-00749, US
16625 2873 1229 2147 AKAMAI-AS, US
36352 2854 231 912 AS-COLOCROSSING, US
30036 2665 368 305 MEDIACOM-ENTERPRISE-BUSINESS, US
Complete listing at https://thyme.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
12479 7294 1711 149 UNI2-AS, ES
39891 4833 298 66 ALJAWWALSTC-AS, SA
9009 4026 381 2290 M247, RO
20940 3875 3395 126 AKAMAI-ASN1, NL
12389 3157 2317 871 ROSTELECOM-AS PJSC Rostelecom. Technical
212238 2509 178 1812 CDNEXT, GB
34984 2419 363 577 TELLCOM-AS, TR
8452 1698 1852 14 TE-AS TE-AS, EG
13188 1607 100 27 TRIOLAN, UA
203020 1485 169 856 HOSTROYALE, IN
Complete listing at https://thyme.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 12551 3305 577 UNINET, MX
10620 3457 463 1100 Telmex Colombia S.A., CO
13999 2503 511 346 Mega Cable, S.A. de C.V., MX
11830 1992 369 65 Instituto Costarricense de Electricidad y
28573 1372 2433 261 Claro NXT Telecomunicacoes Ltda, BR
3816 1350 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1264 371 22 Telefonica del Peru S.A.A., PE
22884 1057 67 364 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M
26615 1016 2486 56 TIM SA, BR
18881 914 1127 31 TELEFONICA BRASIL S.A, BR
Complete listing at https://thyme.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24835 1985 630 32 RAYA-AS, EG
36992 1680 1509 397 ETISALAT-MISR, EG
24863 1265 389 20 LINKdotNET-AS, EG
36903 1250 554 97 MT-MPLS, MA
36935 1106 523 36 Vodafone-, EG
37069 1086 1112 11 MOBINIL, EG
29571 1072 94 22 ORANGE-COTE-IVOIRE, CI
20011 580 154 212 NTT-DATA-Inc, ZA
36914 572 82 3 KENET-AS, KE
15399 550 57 56 WANANCHI-, KE
Complete listing at https://thyme.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 14140 37184 5381 AMAZON-02, US
9808 13465 8760 120 CHINAMOBILE-CN China Mobile Communication
8151 12551 3305 577 UNINET, MX
12479 7294 1711 149 UNI2-AS, ES
7545 6068 833 595 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 5013 4193 77 ERX-CERNET-BKB China Education and Resear
39891 4833 298 66 ALJAWWALSTC-AS, SA
11492 4789 317 804 CABLEONE, US
22773 4733 3113 367 ASN-CXA-ALL-CCI-22773-RDC, US
9498 4560 540 334 BBIL-AP BHARTI Airtel Ltd., IN
Complete listing at https://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 13465 13345 CHINAMOBILE-CN China Mobile Communications Grou
8151 12551 11974 UNINET, MX
12479 7294 7145 UNI2-AS, ES
7545 6068 5473 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 5013 4936 ERX-CERNET-BKB China Education and Research Net
39891 4833 4767 ALJAWWALSTC-AS, SA
22773 4733 4366 ASN-CXA-ALL-CCI-22773-RDC, US
9498 4560 4226 BBIL-AP BHARTI Airtel Ltd., IN
11492 4789 3985 CABLEONE, US
7552 3982 3954 VIETEL-AS-AP Viettel Group, VN
Complete listing at https://thyme.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US
396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US
394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US
54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US
395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US
1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US
54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US
13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US
26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI
396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US
Complete listing at https://thyme.apnic.net/current/data-badAS
Prefixes from the Special Purpose Address Registry (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.88.99.0/24 6939 HURRICANE, US
Complete listing at https://thyme.apnic.net/current/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
23.135.216.0/24 Origin: 400565 RESERVED, ZZ
23.135.216.0/24 Transit: 3356 LEVEL3, US
23.137.48.0/24 Origin: 16904 ARVIG-16904, US
23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, US
23.137.200.0/24 Origin: 16276 OVH, FR
23.137.200.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.137.224.0/24 Origin: 29802 HVC-AS, US
23.137.224.0/24 Transit: 6939 HURRICANE, US
23.137.225.0/24 Origin: 29802 HVC-AS, US
23.137.225.0/24 Transit: 6939 HURRICANE, US
Complete listing at https://thyme.apnic.net/current/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:16 /9:14 /10:41 /11:94 /12:297
/13:580 /14:1195 /15:2093 /16:13703 /17:8298 /18:13568
/19:24980 /20:45422 /21:52557 /22:113418 /23:105201 /24:634147
/25:700 /26:0 /27:0 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 6750 12551 UNINET, MX
12479 6236 7294 UNI2-AS, ES
11492 3602 4789 CABLEONE, US
39891 3521 4833 ALJAWWALSTC-AS, SA
6327 3478 3691 SHAW, CA
22773 3022 4733 ASN-CXA-ALL-CCI-22773-RDC, US
7155 2820 3861 VIASAT-SP-BACKBONE, US
16509 2423 14140 AMAZON-02, US
30036 2320 2665 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2212 3457 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1803 2:1542 3:962 4:10 5:4921 6:189
7:6 8:1528 9:6 11:172 12:1229 13:546
14:2640 15:412 16:303 17:388 18:905 20:585
21:4 22:188 23:8094 24:2564 25:2 27:2716
29:19 31:3395 32:32 33:1 34:81 35:288
36:4543 37:4579 38:9327 39:1176 40:459 41:4406
42:957 43:2796 44:401 45:19328 46:5103 47:376
49:2146 50:2049 51:594 52:1565 54:287 55:1110
56:11 57:291 58:2211 59:1375 60:1186 61:3048
62:3074 63:1739 64:5944 65:2116 66:5906 67:3239
68:1491 69:4164 70:1035 71:625 72:2992 74:2928
75:1519 76:603 77:2765 78:1909 79:1780 80:2300
81:2119 82:3767 83:1468 84:2026 85:3583 86:1107
87:2400 88:1337 89:4614 90:837 91:8405 92:2842
93:2994 94:4230 95:4572 96:1461 97:313 98:952
99:767 100:68 101:1089 102:4286 103:32196 104:5493
105:778 106:917 107:2797 108:1203 109:4225 110:2278
111:3925 112:2754 113:1627 114:2091 115:2209 116:2125
117:3100 118:2551 119:2037 120:2374 121:1563 122:2961
123:2289 124:1667 125:2936 126:125 128:1585 129:969
130:1507 131:2241 132:782 133:462 134:1635 135:385
136:1494 137:1201 138:2841 139:1591 140:1792 141:1556
142:2282 143:2133 144:1311 145:634 146:2187 147:2144
148:2790 149:2854 150:1293 151:2661 152:2284 153:606
154:8981 155:2252 156:4075 157:2192 158:1450 159:2676
160:3675 161:1988 162:3999 163:2326 164:1955 165:2600
166:1313 167:2144 168:3877 169:790 170:5419 171:1109
172:4477 173:3424 174:914 175:1337 176:3751 177:4704
178:4328 179:2262 180:2833 181:4340 182:3811 183:2323
184:2062 185:21691 186:5431 187:4728 188:4400 189:4437
190:9680 191:1548 192:11465 193:9524 194:7858 195:5609
196:3245 197:3196 198:6239 199:6101 200:8216 201:6371
202:10631 203:10501 204:4627 205:3718 206:4398 207:3896
208:4255 209:5448 210:4981 211:2747 212:4901 213:4009
214:1041 215:52 216:7109 217:3340 218:1629 219:575
220:2193 221:1270 222:900 223:3138
End of report
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