[Tznog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Nov 14 21:03:17 EAT 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 15 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: 1013317
Prefixes after maximum aggregation (per Origin AS): 392751
Deaggregation factor: 2.58
Unique aggregates announced (without unneeded subnets): 501501
Number of IPv4 prefixes with a valid ROA: 582545
Number of IPv4 prefixes with an invalid ROA: 1441
Number of IPv4 prefixes with no ROA: 429331
Total ASes present in the Internet Routing Table: 77535
Prefixes per ASN: 13.07
Origin-only ASes present in the Internet Routing Table: 66599
Origin ASes announcing only one prefix: 27093
Transit ASes present in the Internet Routing Table: 10936
Transit-only ASes present in the Internet Routing Table: 544
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 58
Max AS path prepend of ASN ( 37447) 54
Prefixes from unregistered ASNs in the Routing Table: 955
Number of instances of unregistered ASNs: 998
Number of 32-bit ASNs allocated by the RIRs: 47999
Number of 32-bit ASNs visible in the Routing Table: 39280
Prefixes from 32-bit ASNs in the Routing Table: 215338
Number of bogon 32-bit ASNs visible in the Routing Table: 120
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 413
Number of addresses announced to Internet: 3103792512
Equivalent to 185 /8s, 0 /16s and 29 /24s
Percentage of available address space announced: 83.8
Percentage of allocated address space announced: 83.8
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: 332792
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 271850
Total APNIC prefixes after maximum aggregation: 80860
APNIC Deaggregation factor: 3.36
Prefixes being announced from the APNIC address blocks: 261601
Unique aggregates announced from the APNIC address blocks: 106226
APNIC Region origin ASes present in the Internet Routing Table: 14890
APNIC Prefixes per ASN: 17.57
APNIC Region origin ASes announcing only one prefix: 4537
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: 34
Number of APNIC region 32-bit ASNs visible in the Routing Table: 10436
Number of APNIC addresses announced to Internet: 749225472
Equivalent to 44 /8s, 168 /16s and 70 /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: 298122
Total ARIN prefixes after maximum aggregation: 133970
ARIN Deaggregation factor: 2.23
Prefixes being announced from the ARIN address blocks: 298027
Unique aggregates announced from the ARIN address blocks: 145342
ARIN Region origin ASes present in the Internet Routing Table: 19383
ARIN Prefixes per ASN: 15.38
ARIN Region origin ASes announcing only one prefix: 7103
ARIN Region transit ASes present in the Internet Routing Table: 1947
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: 5408
Number of ARIN addresses announced to Internet: 1345008384
Equivalent to 80 /8s, 43 /16s and 51 /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: 281643
Total RIPE prefixes after maximum aggregation: 139594
RIPE Deaggregation factor: 2.02
Prefixes being announced from the RIPE address blocks: 282106
Unique aggregates announced from the RIPE address blocks: 182569
RIPE Region origin ASes present in the Internet Routing Table: 29103
RIPE Prefixes per ASN: 9.69
RIPE Region origin ASes announcing only one prefix: 12081
RIPE Region transit ASes present in the Internet Routing Table: 3956
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: 12802
Number of RIPE addresses announced to Internet: 735427200
Equivalent to 43 /8s, 213 /16s and 186 /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: 125322
Total LACNIC prefixes after maximum aggregation: 30783
LACNIC Deaggregation factor: 4.07
Prefixes being announced from the LACNIC address blocks: 121398
Unique aggregates announced from the LACNIC address blocks: 49580
LACNIC Region origin ASes present in the Internet Routing Table: 11310
LACNIC Prefixes per ASN: 10.73
LACNIC Region origin ASes announcing only one prefix: 2657
LACNIC Region transit ASes present in the Internet Routing Table: 2519
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: 9289
Number of LACNIC addresses announced to Internet: 170840064
Equivalent to 10 /8s, 46 /16s and 208 /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: 35425
Total AfriNIC prefixes after maximum aggregation: 6886
AfriNIC Deaggregation factor: 5.14
Prefixes being announced from the AfriNIC address blocks: 49772
Unique aggregates announced from the AfriNIC address blocks: 17420
AfriNIC Region origin ASes present in the Internet Routing Table: 1981
AfriNIC Prefixes per ASN: 25.12
AfriNIC Region origin ASes announcing only one prefix: 715
AfriNIC Region transit ASes present in the Internet Routing Table: 376
Average AfriNIC Region AS path length visible: 5.4
Max AfriNIC Region AS path length visible: 58
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1345
Number of AfriNIC addresses announced to Internet: 103069184
Equivalent to 6 /8s, 36 /16s and 182 /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 13464 8760 120 CHINAMOBILE-CN China Mobile Communication
7545 6092 833 589 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4977 4193 77 ERX-CERNET-BKB China Education and Resear
9498 4529 539 318 BBIL-AP BHARTI Airtel Ltd., IN
7552 3974 1332 28 VIETEL-AS-AP Viettel Group, VN
7713 3721 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones
45899 3324 1869 99 VNPT-AS-VN VNPT Corp, VN
56046 3246 827 182 CMNET-JIANGSU-AP China Mobile communicati
24560 2940 864 510 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 14242 37266 5366 AMAZON-02, US
11492 4785 317 804 CABLEONE, US
22773 4677 3110 385 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3861 286 85 VIASAT-SP-BACKBONE, US
6327 3691 1320 83 SHAW, CA
396982 3287 4827 472 GOOGLE-CLOUD-PLATFORM, US
749 3216 54766 2467 DNIC-AS-00749, US
16625 2890 1235 2157 AKAMAI-AS, US
36352 2851 231 913 AS-COLOCROSSING, US
174 2676 8763 818 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 7290 1711 149 UNI2-AS, ES
39891 4833 298 66 ALJAWWALSTC-AS, SA
9009 4028 382 2291 M247, RO
20940 3866 3395 126 AKAMAI-ASN1, NL
12389 3166 2317 869 ROSTELECOM-AS PJSC Rostelecom. Technical
212238 2471 175 1778 CDNEXT, GB
34984 2418 363 576 TELLCOM-AS, TR
8452 1684 1852 13 TE-AS TE-AS, EG
13188 1607 100 27 TRIOLAN, UA
203020 1469 167 846 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 12545 3315 578 UNINET, MX
10620 3455 463 1098 Telmex Colombia S.A., CO
13999 2505 511 345 Mega Cable, S.A. de C.V., MX
11830 1992 369 65 Instituto Costarricense de Electricidad y
28573 1373 2433 261 Claro NXT Telecomunicacoes Ltda, BR
3816 1353 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1276 371 22 Telefonica del Peru S.A.A., PE
22884 1057 67 362 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M
26615 1026 2486 56 TIM SA, BR
18881 912 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 1070 94 22 ORANGE-COTE-IVOIRE, CI
20011 580 154 212 NTT-DATA-Inc, ZA
36914 567 82 3 KENET-AS, KE
15399 547 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 14242 37266 5366 AMAZON-02, US
9808 13464 8760 120 CHINAMOBILE-CN China Mobile Communication
8151 12545 3315 578 UNINET, MX
12479 7290 1711 149 UNI2-AS, ES
7545 6092 833 589 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4977 4193 77 ERX-CERNET-BKB China Education and Resear
39891 4833 298 66 ALJAWWALSTC-AS, SA
11492 4785 317 804 CABLEONE, US
22773 4677 3110 385 ASN-CXA-ALL-CCI-22773-RDC, US
9498 4529 539 318 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 13464 13344 CHINAMOBILE-CN China Mobile Communications Grou
8151 12545 11967 UNINET, MX
12479 7290 7141 UNI2-AS, ES
7545 6092 5503 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4977 4900 ERX-CERNET-BKB China Education and Research Net
39891 4833 4767 ALJAWWALSTC-AS, SA
22773 4677 4292 ASN-CXA-ALL-CCI-22773-RDC, US
9498 4529 4211 BBIL-AP BHARTI Airtel Ltd., IN
11492 4785 3981 CABLEONE, US
7552 3974 3946 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
53775 UNALLOCATED 8.20.88.0/24 3737 AS-PTD, US
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
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
23.141.0.0/24 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
23.147.240.0/24 Origin: 32302 RESERVED, ZZ
23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE
23.159.56.0/24 Origin: 174 COGENT-174, US
23.159.56.0/24 Transit: 2497 IIJ Internet Initiative Japan Inc., JP
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 /8:18 /9:14 /10:41 /11:94 /12:298
/13:580 /14:1194 /15:2094 /16:13704 /17:8283 /18:13553
/19:24981 /20:45286 /21:52544 /22:113332 /23:105144 /24:631460
/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 6747 12545 UNINET, MX
12479 6232 7290 UNI2-AS, ES
11492 3598 4785 CABLEONE, US
39891 3521 4833 ALJAWWALSTC-AS, SA
6327 3478 3691 SHAW, CA
22773 2997 4677 ASN-CXA-ALL-CCI-22773-RDC, US
7155 2820 3861 VIASAT-SP-BACKBONE, US
16509 2426 14242 AMAZON-02, US
30036 2317 2661 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2210 3455 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1804 2:1539 3:963 4:10 5:4875 6:189
7:6 8:1534 9:6 11:172 12:1233 13:551
14:2637 15:411 16:303 17:387 18:905 20:583
21:4 22:188 23:8045 24:2562 25:2 27:2725
29:19 31:3365 32:32 33:1 34:81 35:277
36:4542 37:4575 38:9320 39:1176 40:458 41:4448
42:958 43:2784 44:401 45:19174 46:5153 47:376
49:2148 50:2054 51:592 52:1625 54:352 55:1109
56:11 57:294 58:2207 59:1375 60:1188 61:2997
62:3091 63:1741 64:5922 65:2119 66:5888 67:3240
68:1491 69:4136 70:1040 71:627 72:3011 74:2908
75:1512 76:604 77:2763 78:1909 79:1786 80:2298
81:2118 82:3682 83:1470 84:2023 85:3588 86:1104
87:2394 88:1336 89:4609 90:838 91:8401 92:2829
93:2987 94:4168 95:4553 96:1463 97:313 98:953
99:760 100:68 101:1090 102:4257 103:32209 104:5470
105:777 106:912 107:2800 108:1205 109:4224 110:2249
111:3926 112:2758 113:1626 114:2087 115:2211 116:2110
117:3092 118:2554 119:2048 120:2375 121:1554 122:2875
123:2271 124:1665 125:2930 126:125 128:1587 129:971
130:1475 131:2242 132:787 133:461 134:1627 135:365
136:1492 137:1202 138:2856 139:1590 140:1759 141:1561
142:2255 143:2141 144:1325 145:633 146:2188 147:2115
148:2782 149:2846 150:1284 151:2652 152:2269 153:597
154:8162 155:2238 156:3423 157:2193 158:1412 159:2665
160:3661 161:2007 162:3991 163:2326 164:1953 165:2566
166:1322 167:2123 168:3836 169:786 170:5264 171:1091
172:4472 173:3424 174:912 175:1339 176:3765 177:4688
178:4290 179:2288 180:2767 181:4343 182:3798 183:2339
184:2072 185:21668 186:5424 187:4718 188:4386 189:4428
190:9694 191:1528 192:11457 193:9522 194:7850 195:5575
196:3265 197:3247 198:6237 199:6099 200:8205 201:6374
202:10651 203:10497 204:4654 205:3713 206:4409 207:3878
208:4271 209:5390 210:4972 211:2746 212:4914 213:4005
214:1041 215:54 216:7114 217:3333 218:1625 219:575
220:2196 221:1266 222:900 223:3132
End of report
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