[menog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Dec 12 18:03:22 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 13 Dec, 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: 1021801
Prefixes after maximum aggregation (per Origin AS): 394294
Deaggregation factor: 2.59
Unique aggregates announced (without unneeded subnets): 504949
Number of IPv4 prefixes with a valid ROA: 598188
Number of IPv4 prefixes with an invalid ROA: 1541
Number of IPv4 prefixes with no ROA: 422072
Total ASes present in the Internet Routing Table: 77636
Prefixes per ASN: 13.16
Origin-only ASes present in the Internet Routing Table: 66693
Origin ASes announcing only one prefix: 27130
Transit ASes present in the Internet Routing Table: 10943
Transit-only ASes present in the Internet Routing Table: 550
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 69
Max AS path prepend of ASN (269326) 61
Prefixes from unregistered ASNs in the Routing Table: 1012
Number of instances of unregistered ASNs: 1051
Number of 32-bit ASNs allocated by the RIRs: 48196
Number of 32-bit ASNs visible in the Routing Table: 39455
Prefixes from 32-bit ASNs in the Routing Table: 218950
Number of bogon 32-bit ASNs visible in the Routing Table: 110
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 751
Number of addresses announced to Internet: 3105581696
Equivalent to 185 /8s, 27 /16s and 106 /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: 333802
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 276525
Total APNIC prefixes after maximum aggregation: 81224
APNIC Deaggregation factor: 3.40
Prefixes being announced from the APNIC address blocks: 263596
Unique aggregates announced from the APNIC address blocks: 106401
APNIC Region origin ASes present in the Internet Routing Table: 14935
APNIC Prefixes per ASN: 17.65
APNIC Region origin ASes announcing only one prefix: 4564
APNIC Region transit ASes present in the Internet Routing Table: 1982
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: 10490
Number of APNIC addresses announced to Internet: 753727488
Equivalent to 44 /8s, 236 /16s and 248 /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: 299829
Total ARIN prefixes after maximum aggregation: 134981
ARIN Deaggregation factor: 2.22
Prefixes being announced from the ARIN address blocks: 300052
Unique aggregates announced from the ARIN address blocks: 145830
ARIN Region origin ASes present in the Internet Routing Table: 19370
ARIN Prefixes per ASN: 15.49
ARIN Region origin ASes announcing only one prefix: 7080
ARIN Region transit ASes present in the Internet Routing Table: 1936
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: 5423
Number of ARIN addresses announced to Internet: 1342338304
Equivalent to 80 /8s, 2 /16s and 117 /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: 282466
Total RIPE prefixes after maximum aggregation: 139865
RIPE Deaggregation factor: 2.02
Prefixes being announced from the RIPE address blocks: 283211
Unique aggregates announced from the RIPE address blocks: 183606
RIPE Region origin ASes present in the Internet Routing Table: 29130
RIPE Prefixes per ASN: 9.72
RIPE Region origin ASes announcing only one prefix: 12084
RIPE Region transit ASes present in the Internet Routing Table: 3952
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: 12867
Number of RIPE addresses announced to Internet: 735161728
Equivalent to 43 /8s, 209 /16s and 173 /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: 126086
Total LACNIC prefixes after maximum aggregation: 30557
LACNIC Deaggregation factor: 4.13
Prefixes being announced from the LACNIC address blocks: 121998
Unique aggregates announced from the LACNIC address blocks: 49719
LACNIC Region origin ASes present in the Internet Routing Table: 11318
LACNIC Prefixes per ASN: 10.78
LACNIC Region origin ASes announcing only one prefix: 2670
LACNIC Region transit ASes present in the Internet Routing Table: 2523
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 69
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9319
Number of LACNIC addresses announced to Internet: 170628864
Equivalent to 10 /8s, 43 /16s and 151 /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: 35883
Total AfriNIC prefixes after maximum aggregation: 6979
AfriNIC Deaggregation factor: 5.14
Prefixes being announced from the AfriNIC address blocks: 52193
Unique aggregates announced from the AfriNIC address blocks: 18777
AfriNIC Region origin ASes present in the Internet Routing Table: 1994
AfriNIC Prefixes per ASN: 26.18
AfriNIC Region origin ASes announcing only one prefix: 732
AfriNIC Region transit ASes present in the Internet Routing Table: 382
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: 1356
Number of AfriNIC addresses announced to Internet: 103358720
Equivalent to 6 /8s, 41 /16s and 33 /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 13358 8760 123 CHINAMOBILE-CN China Mobile Communication
7545 6041 834 585 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 5026 4193 77 ERX-CERNET-BKB China Education and Resear
9498 4609 541 339 BBIL-AP BHARTI Airtel Ltd., IN
7552 4015 1332 28 VIETEL-AS-AP Viettel Group, VN
7713 3731 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones
56046 3336 827 183 CMNET-JIANGSU-AP China Mobile communicati
45899 3328 1869 99 VNPT-AS-VN VNPT Corp, VN
24560 2960 865 503 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
17561 2519 158 568 LCS-AS-AP LARUS Limited, HK
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 14182 38434 5410 AMAZON-02, US
22773 4780 3116 370 ASN-CXA-ALL-CCI-22773-RDC, US
11492 4692 311 939 CABLEONE, US
7155 3861 286 85 VIASAT-SP-BACKBONE, US
6327 3691 1320 83 SHAW, CA
396982 3316 4863 490 GOOGLE-CLOUD-PLATFORM, US
749 3208 54744 2459 DNIC-AS-00749, US
16625 2857 1223 2141 AKAMAI-AS, US
36352 2818 229 904 AS-COLOCROSSING, US
174 2719 8772 871 COGENT-174, 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 7286 1711 149 UNI2-AS, ES
39891 4833 298 66 ALJAWWALSTC-AS, SA
9009 3944 369 2259 M247, RO
20940 3850 3394 122 AKAMAI-ASN1, NL
12389 3175 2317 871 ROSTELECOM-AS PJSC Rostelecom. Technical
212238 2538 180 1840 CDNEXT, GB
34984 2420 363 574 TELLCOM-AS, TR
8452 1681 1852 14 TE-AS TE-AS, EG
203020 1616 242 783 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 12683 3293 585 UNINET, MX
10620 3434 457 1108 Telmex Colombia S.A., CO
13999 2514 509 352 Mega Cable, S.A. de C.V., MX
11830 1992 369 65 Instituto Costarricense de Electricidad y
28573 1374 2432 267 Claro NXT Telecomunicacoes Ltda, BR
11664 1364 278 33 Techtel LMDS Comunicaciones Interactivas
3816 1337 768 219 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1265 371 22 Telefonica del Peru S.A.A., PE
22884 1056 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M
26615 1023 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 1943 482 23 RAYA-AS, EG
36992 1685 1509 399 ETISALAT-MISR, EG
24863 1262 389 20 LINKdotNET-AS, EG
36903 1250 554 97 MT-MPLS, MA
37069 1084 1096 13 MOBINIL, EG
29571 1072 94 22 ORANGE-COTE-IVOIRE, CI
36935 1037 520 32 Vodafone-, EG
20011 580 154 212 NTT-DATA-Inc, ZA
36914 545 82 3 KENET-AS, KE
15399 534 55 50 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 14182 38434 5410 AMAZON-02, US
9808 13358 8760 123 CHINAMOBILE-CN China Mobile Communication
8151 12683 3293 585 UNINET, MX
12479 7286 1711 149 UNI2-AS, ES
7545 6041 834 585 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 5026 4193 77 ERX-CERNET-BKB China Education and Resear
39891 4833 298 66 ALJAWWALSTC-AS, SA
22773 4780 3116 370 ASN-CXA-ALL-CCI-22773-RDC, US
11492 4692 311 939 CABLEONE, US
9498 4609 541 339 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 13358 13235 CHINAMOBILE-CN China Mobile Communications Grou
8151 12683 12098 UNINET, MX
12479 7286 7137 UNI2-AS, ES
7545 6041 5456 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 5026 4949 ERX-CERNET-BKB China Education and Research Net
39891 4833 4767 ALJAWWALSTC-AS, SA
22773 4780 4410 ASN-CXA-ALL-CCI-22773-RDC, US
9498 4609 4270 BBIL-AP BHARTI Airtel Ltd., IN
7552 4015 3987 VIETEL-AS-AP Viettel Group, VN
7155 3861 3776 VIASAT-SP-BACKBONE, 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, 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 46887 CROWNCASTLE-AS46887, 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
23.137.48.0/24 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
23.140.180.0/24 Origin: 401371 DEEP-TO-ONE-INC, US
23.140.180.0/24 Transit: 154309 INTELLIGENT1-AS-AP Intelligent Cloud Lim
23.141.0.0/24 Origin: 395350 RESERVED, ZZ
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US
23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA
23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, 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 /11:93 /12:299
/13:580 /14:1199 /15:2094 /16:13705 /17:8301 /18:13582
/19:25037 /20:45608 /21:52644 /22:113347 /23:105649 /24:638895
/25:697 /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 6875 12683 UNINET, MX
12479 6217 7286 UNI2-AS, ES
11492 3537 4692 CABLEONE, US
39891 3521 4833 ALJAWWALSTC-AS, SA
6327 3478 3691 SHAW, CA
22773 3049 4780 ASN-CXA-ALL-CCI-22773-RDC, US
7155 2820 3861 VIASAT-SP-BACKBONE, US
16509 2423 14182 AMAZON-02, US
30036 2318 2661 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2214 3434 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1806 2:1539 3:967 4:10 5:4900 6:190
7:6 8:1521 9:6 11:172 12:1231 13:542
14:2647 15:417 16:298 17:387 18:913 20:587
21:4 22:188 23:8083 24:2559 25:2 27:2742
29:19 31:3389 32:32 33:1 34:81 35:289
36:4598 37:4558 38:9973 39:1196 40:432 41:4460
42:958 43:2836 44:414 45:19593 46:5091 47:396
49:2154 50:2054 51:597 52:1543 54:289 55:1111
56:11 57:305 58:2214 59:1398 60:1172 61:3062
62:3103 63:1746 64:5986 65:2121 66:5899 67:3235
68:1496 69:4206 70:1028 71:621 72:3063 74:2944
75:1517 76:600 77:2781 78:1925 79:1790 80:2318
81:2087 82:3859 83:1470 84:2029 85:3646 86:1109
87:2323 88:1346 89:4589 90:834 91:8422 92:2839
93:3012 94:4252 95:4561 96:1447 97:313 98:950
99:778 100:68 101:1339 102:4345 103:32237 104:5497
105:776 106:916 107:2814 108:1215 109:4224 110:2310
111:3985 112:2791 113:1660 114:2103 115:2235 116:2157
117:3132 118:2483 119:2091 120:2409 121:1560 122:2964
123:2287 124:1673 125:2938 126:125 128:1592 129:962
130:1535 131:2233 132:770 133:462 134:1635 135:537
136:1501 137:1292 138:2991 139:1588 140:1830 141:1553
142:2428 143:2121 144:1353 145:634 146:2192 147:2139
148:2790 149:2948 150:1310 151:2610 152:2277 153:795
154:9309 155:2273 156:4350 157:2220 158:1477 159:2706
160:3649 161:1996 162:3989 163:2328 164:1976 165:2624
166:1309 167:2156 168:3942 169:802 170:5447 171:1115
172:4523 173:3432 174:905 175:1335 176:3771 177:4736
178:4294 179:2289 180:2845 181:4346 182:3842 183:2402
184:2055 185:21635 186:5522 187:4789 188:4446 189:4500
190:9688 191:1551 192:11461 193:9519 194:7862 195:5626
196:3304 197:3185 198:6232 199:6096 200:8241 201:6401
202:10676 203:10483 204:4655 205:3747 206:4420 207:3947
208:4283 209:5462 210:4983 211:2774 212:4912 213:4027
214:1063 215:53 216:7085 217:3384 218:1649 219:577
220:2195 221:1286 222:917 223:3216
End of report
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