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Weekly Global IPv4 Routing Table Report
From: Routing Table Analysis Role Account via NANOG <nanog () lists nanog org>
Date: Sat, 18 Apr 2026 04:03:42 +1000 (AEST)
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 () lists apnic net. For historical data, please see https://thyme.apnic.net. If you have any comments please contact Philip Smith <pfsinoz () gmail com>. IPv4 Routing Table Report 04:00 +10GMT Sat 18 Apr, 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: 1044785 Prefixes after maximum aggregation (per Origin AS): 400041 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 514448 Number of IPv4 prefixes with a valid ROA: 630429 Number of IPv4 prefixes with an invalid ROA: 1544 Number of IPv4 prefixes with no ROA: 412812 Total ASes present in the Internet Routing Table: 78339 Prefixes per ASN: 13.34 Origin-only ASes present in the Internet Routing Table: 67312 Origin ASes announcing only one prefix: 27408 Transit ASes present in the Internet Routing Table: 11027 Transit-only ASes present in the Internet Routing Table: 568 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: 1110 Number of instances of unregistered ASNs: 1152 Number of 32-bit ASNs allocated by the RIRs: 49372 Number of 32-bit ASNs visible in the Routing Table: 40394 Prefixes from 32-bit ASNs in the Routing Table: 227844 Number of bogon 32-bit ASNs visible in the Routing Table: 135 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 528 Number of addresses announced to Internet: 3104595456 Equivalent to 185 /8s, 12 /16s and 94 /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: 340075 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 286312 Total APNIC prefixes after maximum aggregation: 82890 APNIC Deaggregation factor: 3.45 Prefixes being announced from the APNIC address blocks: 273613 Unique aggregates announced from the APNIC address blocks: 107590 APNIC Region origin ASes present in the Internet Routing Table: 15177 APNIC Prefixes per ASN: 18.03 APNIC Region origin ASes announcing only one prefix: 4676 APNIC Region transit ASes present in the Internet Routing Table: 2001 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 44 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10740 Number of APNIC addresses announced to Internet: 749976192 Equivalent to 44 /8s, 179 /16s and 186 /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: 303938 Total ARIN prefixes after maximum aggregation: 135982 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 303555 Unique aggregates announced from the ARIN address blocks: 147155 ARIN Region origin ASes present in the Internet Routing Table: 19416 ARIN Prefixes per ASN: 15.63 ARIN Region origin ASes announcing only one prefix: 7102 ARIN Region transit ASes present in the Internet Routing Table: 1929 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5547 Number of ARIN addresses announced to Internet: 1347794944 Equivalent to 80 /8s, 85 /16s and 184 /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, 393216-404380 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: 288593 Total RIPE prefixes after maximum aggregation: 142676 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 291085 Unique aggregates announced from the RIPE address blocks: 189620 RIPE Region origin ASes present in the Internet Routing Table: 29412 RIPE Prefixes per ASN: 9.90 RIPE Region origin ASes announcing only one prefix: 12188 RIPE Region transit ASes present in the Internet Routing Table: 3974 Average RIPE Region AS path length visible: 4.8 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13290 Number of RIPE addresses announced to Internet: 733501312 Equivalent to 43 /8s, 184 /16s and 87 /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: 127884 Total LACNIC prefixes after maximum aggregation: 30826 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 122751 Unique aggregates announced from the LACNIC address blocks: 50304 LACNIC Region origin ASes present in the Internet Routing Table: 11371 LACNIC Prefixes per ASN: 10.80 LACNIC Region origin ASes announcing only one prefix: 2707 LACNIC Region transit ASes present in the Internet Routing Table: 2561 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: 9427 Number of LACNIC addresses announced to Internet: 169857792 Equivalent to 10 /8s, 31 /16s and 211 /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: 36948 Total AfriNIC prefixes after maximum aggregation: 7009 AfriNIC Deaggregation factor: 5.27 Prefixes being announced from the AfriNIC address blocks: 53253 Unique aggregates announced from the AfriNIC address blocks: 19376 AfriNIC Region origin ASes present in the Internet Routing Table: 2026 AfriNIC Prefixes per ASN: 26.28 AfriNIC Region origin ASes announcing only one prefix: 735 AfriNIC Region transit ASes present in the Internet Routing Table: 392 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 53 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1390 Number of AfriNIC addresses announced to Internet: 103240448 Equivalent to 6 /8s, 39 /16s and 83 /24s AfriNIC AS Blocks 36864-37887, 327680-330751 & 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 13918 8945 105 CHINAMOBILE-CN China Mobile Communication 7545 5906 827 490 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 5031 4193 77 ERX-CERNET-BKB China Education and Resear 9498 4918 550 330 BBIL-AP BHARTI Airtel Ltd., IN 18403 4555 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 4062 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3682 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3488 887 178 CMNET-JIANGSU-AP China Mobile communicati 45899 3366 1868 100 VNPT-AS-VN VNPT Corp, VN 24560 3011 855 536 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 14726 41276 5666 AMAZON-02 - Amazon.com, Inc., US 22773 4779 3117 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4670 310 1039 CABLEONE - CABLE ONE, INC., US 7155 3870 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3723 1305 75 SHAW - Shaw Communications, CA 174 3375 8766 823 COGENT-174 - Cogent Communications, LLC, 396982 3321 4859 496 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3139 54728 2390 DNIC-AS-00749 - United States Department 36352 2749 224 922 AS-COLOCROSSING - HostPapa, US 30036 2675 367 302 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom C 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 7171 1711 149 UNI2-AS, ES 39891 4943 305 72 ALJAWWALSTC-AS, SA 20940 3838 3389 110 AKAMAI-ASN1, NL 9009 3827 354 2247 M247, RO 12389 3177 2322 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2745 199 2025 CDNEXT, GB 34984 2451 365 575 TELLCOM-AS, TR 8452 1715 1852 17 TE-AS TE-AS, EG 203020 1672 252 832 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 12836 3317 616 UNINET, MX 10620 3430 450 1106 Telmex Colombia S.A., CO 13999 2436 506 346 Mega Cable, S.A. de C.V., MX 11830 1931 369 65 Instituto Costarricense de Electricidad y 11664 1437 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1373 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1246 371 22 INTEGRATEL PERU S.A.A., PE 26615 1073 2392 100 TIM SA, BR 22884 1060 71 361 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 2025 648 34 RAYA-AS, EG 36992 1859 1533 336 ETISALAT-MISR, EG 24863 1283 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1223 520 41 Vodafone-, EG 37069 1113 1100 11 MOBINIL, EG 29571 1071 78 19 ORANGE-COTE-IVOIRE, CI 20011 589 155 220 NTT-DATA-Inc, ZA 15399 556 58 61 WANANCHI-, KE 36914 555 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 14726 41276 5666 AMAZON-02 - Amazon.com, Inc., US 9808 13918 8945 105 CHINAMOBILE-CN China Mobile Communication 8151 12836 3317 616 UNINET, MX 12479 7171 1711 149 UNI2-AS, ES 7545 5906 827 490 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 5031 4193 77 ERX-CERNET-BKB China Education and Resear 39891 4943 305 72 ALJAWWALSTC-AS, SA 9498 4918 550 330 BBIL-AP BHARTI Airtel Ltd., IN 22773 4779 3117 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4670 310 1039 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 13918 13813 CHINAMOBILE-CN China Mobile Communications Grou 8151 12836 12220 UNINET, MX 12479 7171 7022 UNI2-AS, ES 7545 5906 5416 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 5031 4954 ERX-CERNET-BKB China Education and Research Net 39891 4943 4871 ALJAWWALSTC-AS, SA 9498 4918 4588 BBIL-AP BHARTI Airtel Ltd., IN 18403 4555 4529 FPT-AS-AP FPT Telecom Company, VN 22773 4779 4413 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4062 4034 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 - C 395729 UNALLOCATED 8.28.58.0/24 32787 PROLEXIC-TECHNOLOGIES-D 395729 UNALLOCATED 8.28.60.0/24 32787 PROLEXIC-TECHNOLOGIES-D 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 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 /10:39 /11:95 /12:297 /13:583 /14:1187 /15:2101 /16:13621 /17:8387 /18:13417 /19:25715 /20:46952 /21:52944 /22:114015 /23:107781 /24:656935 /25:686 /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 7021 12836 UNINET, MX 12479 6112 7171 UNI2-AS, ES 39891 3628 4943 ALJAWWALSTC-AS, SA 11492 3531 4670 CABLEONE - CABLE ONE, INC., US 6327 3505 3723 SHAW - Shaw Communications, CA 22773 3051 4779 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2824 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2647 14726 AMAZON-02 - Amazon.com, Inc., US 30036 2327 2675 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2234 3430 Telmex Colombia S.A., CO Complete listing at https://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2528 2:1854 3:1007 4:5 5:5117 6:198 7:6 8:1508 9:39 11:172 12:1190 13:693 14:2730 15:459 16:190 17:424 18:915 20:585 21:4 22:188 23:8185 24:2781 25:2 27:2759 28:1 29:19 31:3474 32:37 34:87 35:286 36:4685 37:4449 38:10200 39:1287 40:417 41:4546 42:2187 43:3033 44:445 45:19720 46:4890 47:414 48:128 49:2225 50:2017 51:645 52:1323 54:285 55:1098 56:11 57:326 58:2418 59:1439 60:1175 61:3134 62:3128 63:1721 64:6319 65:2125 66:6092 67:3264 68:1505 69:4218 70:1061 71:615 72:3204 74:3038 75:1488 76:592 77:2943 78:1985 79:1795 80:2359 81:2239 82:4084 83:1446 84:2146 85:3822 86:1091 87:2517 88:1344 89:4744 90:801 91:8433 92:2819 93:3011 94:4362 95:4677 96:1455 97:315 98:941 99:813 100:70 101:1377 102:4494 103:32391 104:5365 105:854 106:913 107:2891 108:1260 109:4238 110:2284 111:4173 112:3170 113:1968 114:2281 115:2240 116:2165 117:3509 118:2950 119:2115 120:2731 121:1592 122:3008 123:2274 124:1724 125:3013 126:126 128:1594 129:983 130:1643 131:2463 132:843 133:472 134:1680 135:609 136:1596 137:1416 138:3312 139:1627 140:1812 141:1726 142:2537 143:2113 144:1757 145:645 146:2212 147:2226 148:2778 149:3141 150:1366 151:2843 152:2327 153:1340 154:9435 155:2301 156:4554 157:2288 158:1545 159:2861 160:3814 161:1958 162:4011 163:2492 164:2038 165:2638 166:1276 167:2299 168:4024 169:857 170:5552 171:1128 172:4652 173:3472 174:885 175:1358 176:3873 177:4801 178:4358 179:2312 180:3058 181:4543 182:4001 183:2828 184:2036 185:21815 186:5773 187:4963 188:4589 189:4519 190:9853 191:1543 192:11466 193:9646 194:7891 195:5810 196:3359 197:3270 198:6290 199:6066 200:8231 201:6380 202:10836 203:10517 204:4794 205:3731 206:4558 207:4009 208:4378 209:5460 210:4900 211:2775 212:5114 213:4133 214:1043 215:47 216:7298 217:3580 218:1755 219:585 220:2197 221:1310 222:1078 223:3436 End of report _______________________________________________ NANOG mailing list https://lists.nanog.org/archives/list/nanog () lists nanog org/message/Y2R3TH57QRVJ6D27AIUIJWCFU2N56KBY/
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