[cmNOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Jan 23 18:03:23 UTC 2026
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 24 Jan, 2026
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: 1029957
Prefixes after maximum aggregation (per Origin AS): 396075
Deaggregation factor: 2.60
Unique aggregates announced (without unneeded subnets): 507988
Number of IPv4 prefixes with a valid ROA: 609259
Number of IPv4 prefixes with an invalid ROA: 1524
Number of IPv4 prefixes with no ROA: 419174
Total ASes present in the Internet Routing Table: 77820
Prefixes per ASN: 13.24
Origin-only ASes present in the Internet Routing Table: 66875
Origin ASes announcing only one prefix: 27195
Transit ASes present in the Internet Routing Table: 10945
Transit-only ASes present in the Internet Routing Table: 541
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 209
Max AS path prepend of ASN (214570) 200
Prefixes from unregistered ASNs in the Routing Table: 1071
Number of instances of unregistered ASNs: 1110
Number of 32-bit ASNs allocated by the RIRs: 48484
Number of 32-bit ASNs visible in the Routing Table: 39705
Prefixes from 32-bit ASNs in the Routing Table: 220983
Number of bogon 32-bit ASNs visible in the Routing Table: 113
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 476
Number of addresses announced to Internet: 3107385984
Equivalent to 185 /8s, 54 /16s and 242 /24s
Percentage of available address space announced: 83.9
Percentage of allocated address space announced: 83.9
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: 335794
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 281113
Total APNIC prefixes after maximum aggregation: 82399
APNIC Deaggregation factor: 3.41
Prefixes being announced from the APNIC address blocks: 267306
Unique aggregates announced from the APNIC address blocks: 106940
APNIC Region origin ASes present in the Internet Routing Table: 15027
APNIC Prefixes per ASN: 17.79
APNIC Region origin ASes announcing only one prefix: 4604
APNIC Region transit ASes present in the Internet Routing Table: 1976
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 42
Number of APNIC region 32-bit ASNs visible in the Routing Table: 10582
Number of APNIC addresses announced to Internet: 754797056
Equivalent to 44 /8s, 253 /16s and 74 /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: 301736
Total ARIN prefixes after maximum aggregation: 135438
ARIN Deaggregation factor: 2.23
Prefixes being announced from the ARIN address blocks: 301616
Unique aggregates announced from the ARIN address blocks: 146224
ARIN Region origin ASes present in the Internet Routing Table: 19391
ARIN Prefixes per ASN: 15.55
ARIN Region origin ASes announcing only one prefix: 7061
ARIN Region transit ASes present in the Internet Routing Table: 1918
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: 5446
Number of ARIN addresses announced to Internet: 1344124416
Equivalent to 80 /8s, 29 /16s and 182 /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: 283129
Total RIPE prefixes after maximum aggregation: 140068
RIPE Deaggregation factor: 2.02
Prefixes being announced from the RIPE address blocks: 285031
Unique aggregates announced from the RIPE address blocks: 184980
RIPE Region origin ASes present in the Internet Routing Table: 29153
RIPE Prefixes per ASN: 9.78
RIPE Region origin ASes announcing only one prefix: 12110
RIPE Region transit ASes present in the Internet Routing Table: 3977
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 209
Number of RIPE region 32-bit ASNs visible in the Routing Table: 12945
Number of RIPE addresses announced to Internet: 734182784
Equivalent to 43 /8s, 194 /16s and 189 /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: 126469
Total LACNIC prefixes after maximum aggregation: 30528
LACNIC Deaggregation factor: 4.14
Prefixes being announced from the LACNIC address blocks: 122100
Unique aggregates announced from the LACNIC address blocks: 49830
LACNIC Region origin ASes present in the Internet Routing Table: 11357
LACNIC Prefixes per ASN: 10.75
LACNIC Region origin ASes announcing only one prefix: 2679
LACNIC Region transit ASes present in the Internet Routing Table: 2526
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 69
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9352
Number of LACNIC addresses announced to Internet: 170604288
Equivalent to 10 /8s, 43 /16s and 55 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-275868 + 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: 36439
Total AfriNIC prefixes after maximum aggregation: 6947
AfriNIC Deaggregation factor: 5.25
Prefixes being announced from the AfriNIC address blocks: 53428
Unique aggregates announced from the AfriNIC address blocks: 19609
AfriNIC Region origin ASes present in the Internet Routing Table: 2018
AfriNIC Prefixes per ASN: 26.48
AfriNIC Region origin ASes announcing only one prefix: 741
AfriNIC Region transit ASes present in the Internet Routing Table: 385
Average AfriNIC Region AS path length visible: 5.3
Max AfriNIC Region AS path length visible: 42
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1380
Number of AfriNIC addresses announced to Internet: 103390208
Equivalent to 6 /8s, 41 /16s and 156 /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 13606 8945 102 CHINAMOBILE-CN China Mobile Communication
7545 6026 833 575 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 5029 4193 77 ERX-CERNET-BKB China Education and Resear
9498 4719 543 339 BBIL-AP BHARTI Airtel Ltd., IN
7552 4050 1332 29 VIETEL-AS-AP Viettel Group, VN
7713 3732 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones
56046 3420 831 184 CMNET-JIANGSU-AP China Mobile communicati
45899 3332 1868 98 VNPT-AS-VN VNPT Corp, VN
17561 3193 200 621 LCS-AS-AP LARUS Limited, HK
24560 2963 864 512 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
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 14003 38810 5447 AMAZON-02 - Amazon.com, Inc., US
22773 4778 3115 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica
11492 4638 308 1020 CABLEONE - CABLE ONE, INC., US
7155 3858 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US
6327 3699 1321 71 SHAW - Shaw Communications, CA
396982 3329 4868 499 GOOGLE-CLOUD-PLATFORM - Google LLC, US
174 3184 8768 848 COGENT-174 - Cogent Communications, LLC,
749 3142 54729 2393 DNIC-AS-00749 - United States Department
16625 2819 1209 2121 AKAMAI-AS - Akamai Technologies, Inc., US
36352 2702 222 893 AS-COLOCROSSING - HostPapa, 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 7238 1711 149 UNI2-AS, ES
39891 4969 306 72 ALJAWWALSTC-AS, SA
9009 3914 366 2239 M247, RO
20940 3832 3393 112 AKAMAI-ASN1, NL
12389 3176 2317 871 ROSTELECOM-AS PJSC Rostelecom. Technical
212238 2559 182 1856 CDNEXT, GB
34984 2425 364 577 TELLCOM-AS, TR
8452 1712 1852 14 TE-AS TE-AS, EG
203020 1609 242 782 HOSTROYALE, IN
13188 1607 100 27 TRIOLAN, UA
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 12672 3304 603 UNINET, MX
10620 3445 457 1107 Telmex Colombia S.A., CO
13999 2483 508 351 Mega Cable, S.A. de C.V., MX
11830 1991 369 65 Instituto Costarricense de Electricidad y
11664 1389 278 33 Techtel LMDS Comunicaciones Interactivas
28573 1375 2430 272 Claro NXT Telecomunicacoes Ltda, BR
3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1258 371 22 INTEGRATEL PERU S.A.A., PE
22884 1056 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M
26615 1016 2486 56 TIM SA, 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 1983 646 33 RAYA-AS, EG
36992 1842 1532 339 ETISALAT-MISR, EG
24863 1282 389 16 LINKdotNET-AS, EG
36903 1232 555 98 MT-MPLS, MA
36935 1126 520 42 Vodafone-, EG
37069 1117 1112 11 MOBINIL, EG
29571 1070 78 20 ORANGE-COTE-IVOIRE, CI
20011 580 154 212 NTT-DATA-Inc, ZA
328608 573 49 167 Africa-on-Cloud-AS, ZA
36914 569 82 3 KENET-AS, 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 14003 38810 5447 AMAZON-02 - Amazon.com, Inc., US
9808 13606 8945 102 CHINAMOBILE-CN China Mobile Communication
8151 12672 3304 603 UNINET, MX
12479 7238 1711 149 UNI2-AS, ES
7545 6026 833 575 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 5029 4193 77 ERX-CERNET-BKB China Education and Resear
39891 4969 306 72 ALJAWWALSTC-AS, SA
22773 4778 3115 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica
9498 4719 543 339 BBIL-AP BHARTI Airtel Ltd., IN
11492 4638 308 1020 CABLEONE - CABLE ONE, INC., US
Complete listing at https://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 13606 13504 CHINAMOBILE-CN China Mobile Communications Grou
8151 12672 12069 UNINET, MX
12479 7238 7089 UNI2-AS, ES
7545 6026 5451 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 5029 4952 ERX-CERNET-BKB China Education and Research Net
39891 4969 4897 ALJAWWALSTC-AS, SA
22773 4778 4412 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications
9498 4719 4380 BBIL-AP BHARTI Airtel Ltd., IN
7552 4050 4021 VIETEL-AS-AP Viettel Group, VN
7155 3858 3773 VIASAT-SP-BACKBONE - ViaSat,Inc., US
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 - C
396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent
394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos
395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent
1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent
13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174 - Cogent Com
26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI
396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4 - AT&T En
395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4 - AT&T En
395476 UNALLOCATED 12.36.195.0/24 3356 LEVEL3 - Level 3 Parent
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 - Hurricane Electric LLC, US
Complete listing at https://thyme.apnic.net/current/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., 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
23.140.216.0/24 Origin: 27176 DATAWAGON - DataWagon LLC, US
23.140.216.0/24 Transit: 20278 NEXEON - Nexeon Technologies, Inc., US
23.141.0.0/24 Origin: 395350 RESERVED, ZZ
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS - Charter Communicat
23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA
23.142.24.0/24 Transit: 64236 UNREAL-SERVERS - UnReal Servers, LLC, 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 /10:40 /11:93 /12:302
/13:580 /14:1199 /15:2090 /16:13737 /17:8330 /18:13622
/19:25117 /20:45754 /21:52805 /22:113839 /23:106448 /24:645279
/25:692 /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 6832 12672 UNINET, MX
12479 6168 7238 UNI2-AS, ES
39891 3655 4969 ALJAWWALSTC-AS, SA
11492 3498 4638 CABLEONE - CABLE ONE, INC., US
6327 3479 3699 SHAW - Shaw Communications, CA
22773 3049 4778 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US
7155 2817 3858 VIASAT-SP-BACKBONE - ViaSat,Inc., US
16509 2476 14003 AMAZON-02 - Amazon.com, Inc., US
30036 2305 2646 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US
10620 2225 3445 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1840 2:1521 3:962 4:9 5:4956 6:186
7:6 8:1528 9:14 11:172 12:1227 13:620
14:2675 15:415 16:179 17:391 18:917 20:597
21:4 22:188 23:8147 24:2632 25:2 27:2753
29:19 31:3431 32:32 34:81 35:292 36:4642
37:4530 38:9894 39:1256 40:439 41:4543 42:957
43:2907 44:417 45:19706 46:4955 47:403 48:20
49:2192 50:2064 51:599 52:1257 54:238 55:1132
56:11 57:311 58:2231 59:1423 60:1173 61:3111
62:3108 63:1772 64:6203 65:2128 66:6018 67:3257
68:1492 69:4193 70:1031 71:619 72:3096 74:2969
75:1514 76:608 77:2757 78:1922 79:1803 80:2319
81:2133 82:4039 83:1472 84:2026 85:3692 86:1105
87:2392 88:1344 89:4664 90:821 91:8400 92:2861
93:3013 94:4301 95:4527 96:1450 97:314 98:956
99:780 100:69 101:1511 102:4352 103:32333 104:5458
105:785 106:917 107:2823 108:1236 109:4246 110:2309
111:4113 112:3127 113:1704 114:2175 115:2238 116:2167
117:3307 118:2489 119:2110 120:2620 121:1579 122:2973
123:2305 124:1680 125:2987 126:125 128:1656 129:960
130:1571 131:2286 132:770 133:461 134:1622 135:539
136:1627 137:1349 138:2984 139:1608 140:1820 141:1560
142:2468 143:2173 144:1562 145:628 146:2201 147:2270
148:2807 149:2935 150:1323 151:2633 152:2280 153:850
154:9665 155:2305 156:4829 157:2247 158:1500 159:2757
160:3633 161:2005 162:4024 163:2333 164:1971 165:2634
166:1299 167:2213 168:3941 169:902 170:5477 171:1122
172:4569 173:3432 174:892 175:1346 176:3775 177:4744
178:4329 179:2288 180:3014 181:4390 182:3902 183:2540
184:2024 185:21698 186:5551 187:4857 188:4623 189:4460
190:9689 191:1539 192:11484 193:9512 194:7861 195:5697
196:3277 197:3196 198:6234 199:6122 200:8210 201:6401
202:10814 203:10563 204:4748 205:3782 206:4415 207:3972
208:4369 209:5471 210:5012 211:2783 212:4990 213:4055
214:1061 215:54 216:7141 217:3449 218:1675 219:591
220:2191 221:1314 222:1048 223:3281
End of report
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