IPv4 R&E Routing Table Report 21:10 GMT Wed 12 Nov, 2025 IPv4 BGP Table (Global) as seen at AARNET (Brisbane). Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/AARNET/ Analysis Summary ---------------- BGP routing table entries examined: 1011916 Prefixes after maximum aggregation (per Origin AS): 391709 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 500902 Number of IPv4 prefixes with a valid ROA: 586753 Number of IPv4 prefixes with an invalid ROA: 131 Number of IPv4 prefixes with no ROA: 425028 Total ASes present in the Internet Routing Table: 77508 Prefixes per ASN: 13.06 Origin-only ASes present in the Internet Routing Table: 66357 Origin ASes announcing only one prefix: 27115 Transit ASes present in the Internet Routing Table: 11151 Transit-only ASes present in the Internet Routing Table: 559 Paths with bogon ASNs present in the IPv4 Routing Table: 7 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 52 Max AS path prepend of ASN ( 37447) 39 Prefixes from unregistered ASNs in the Routing Table: 937 Number of instances of unregistered ASNs: 967 Number of 32-bit ASNs allocated by the RIRs: 47971 Number of 32-bit ASNs visible in the Routing Table: 39276 Prefixes from 32-bit ASNs in the Routing Table: 214837 Number of bogon 32-bit ASNs visible in the Routing Table: 72 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 415 Number of addresses announced to Internet: 3102876672 Equivalent to 184 /8s, 242 /16s and 36 /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: 331866 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 270514 Total APNIC prefixes after maximum aggregation: 80209 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 260564 Unique aggregates announced from the APNIC address blocks: 106062 APNIC Region origin ASes present in the Internet Routing Table: 14854 APNIC Prefixes per ASN: 17.54 APNIC Region origin ASes announcing only one prefix: 4527 APNIC Region transit ASes present in the Internet Routing Table: 1996 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10413 Number of APNIC addresses announced to Internet: 748332032 Equivalent to 44 /8s, 154 /16s and 164 /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: 298322 Total ARIN prefixes after maximum aggregation: 133889 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 298256 Unique aggregates announced from the ARIN address blocks: 145348 ARIN Region origin ASes present in the Internet Routing Table: 19388 ARIN Prefixes per ASN: 15.38 ARIN Region origin ASes announcing only one prefix: 7110 ARIN Region transit ASes present in the Internet Routing Table: 1993 Average ARIN Region AS path length visible: 3.9 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5417 Number of ARIN addresses announced to Internet: 1345074688 Equivalent to 80 /8s, 44 /16s and 54 /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: 281548 Total RIPE prefixes after maximum aggregation: 139647 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 281972 Unique aggregates announced from the RIPE address blocks: 182350 RIPE Region origin ASes present in the Internet Routing Table: 29092 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: 4035 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12803 Number of RIPE addresses announced to Internet: 735388928 Equivalent to 43 /8s, 213 /16s and 37 /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: 125142 Total LACNIC prefixes after maximum aggregation: 30454 LACNIC Deaggregation factor: 4.11 Prefixes being announced from the LACNIC address blocks: 121201 Unique aggregates announced from the LACNIC address blocks: 49633 LACNIC Region origin ASes present in the Internet Routing Table: 11311 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2673 LACNIC Region transit ASes present in the Internet Routing Table: 2550 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 38 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9297 Number of LACNIC addresses announced to Internet: 170747136 Equivalent to 10 /8s, 45 /16s and 101 /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: 35453 Total AfriNIC prefixes after maximum aggregation: 6864 AfriNIC Deaggregation factor: 5.17 Prefixes being announced from the AfriNIC address blocks: 49507 Unique aggregates announced from the AfriNIC address blocks: 17138 AfriNIC Region origin ASes present in the Internet Routing Table: 1986 AfriNIC Prefixes per ASN: 24.93 AfriNIC Region origin ASes announcing only one prefix: 724 AfriNIC Region transit ASes present in the Internet Routing Table: 381 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1346 Number of AfriNIC addresses announced to Internet: 103110912 Equivalent to 6 /8s, 37 /16s and 89 /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 13390 8730 117 CHINAMOBILE-CN China Mobile Communication 7545 6100 833 590 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4521 538 317 BBIL-AP BHARTI Airtel Ltd., IN 18403 4392 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 3974 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3717 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3310 1868 98 VNPT-AS-VN VNPT Corp, VN 56046 3244 827 180 CMNET-JIANGSU-AP China Mobile communicati 24560 2937 863 509 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 140292 2489 273 1919 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK CH Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14218 37267 5369 AMAZON-02, US 11492 4785 317 804 CABLEONE, US 22773 4656 3108 396 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3861 286 85 VIASAT-SP-BACKBONE, US 6327 3690 1320 83 SHAW, CA 396982 3289 4827 472 GOOGLE-CLOUD-PLATFORM, US 749 3215 54766 2466 DNIC-AS-00749, US 16625 3021 1294 2196 AKAMAI-AS, US 36352 2846 231 919 AS-COLOCROSSING, US 30036 2659 367 285 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7292 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 9009 4022 381 2286 M247, RO 20940 4006 3395 127 AKAMAI-ASN1, NL 12389 3145 2317 868 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2479 175 1783 CDNEXT, GB 34984 2418 363 576 TELLCOM-AS, TR 8452 1685 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1470 167 843 HOSTROYALE, IN Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12537 3302 579 UNINET, MX 10620 3455 463 1098 Telmex Colombia S.A., CO 13999 2504 511 347 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, 11664 1310 278 31 Techtel LMDS Comunicaciones Interactivas 6147 1275 371 22 Telefonica del Peru S.A.A., PE 22884 1062 70 366 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1027 2486 56 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1854 630 32 RAYA-AS, EG 36992 1680 1509 397 ETISALAT-MISR, EG 24863 1266 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 36935 1104 523 34 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 565 82 3 KENET-AS, KE 15399 543 57 55 WANANCHI-, KE Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14218 37267 5369 AMAZON-02, US 9808 13390 8730 117 CHINAMOBILE-CN China Mobile Communication 8151 12537 3302 579 UNINET, MX 12479 7292 1711 149 UNI2-AS, ES 7545 6100 833 590 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4785 317 804 CABLEONE, US 22773 4656 3108 396 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4521 538 317 BBIL-AP BHARTI Airtel Ltd., IN 18403 4392 347 24 FPT-AS-AP FPT Telecom Company, VN Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13390 13273 CHINAMOBILE-CN China Mobile Communications Grou 8151 12537 11958 UNINET, MX 12479 7292 7143 UNI2-AS, ES 7545 6100 5510 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4392 4368 FPT-AS-AP FPT Telecom Company, VN 22773 4656 4260 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4521 4204 BBIL-AP BHARTI Airtel Ltd., IN 11492 4785 3981 CABLEONE, US 7552 3974 3946 VIETEL-AS-AP Viettel Group, VN Complete listing at https://bgp.nsrc.org/REN/AARNET/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://bgp.nsrc.org/REN/AARNET/data-badAS 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 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, 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 Complete listing at https://bgp.nsrc.org/REN/AARNET/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- !!Default route being announced!! /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:18 /9:14 /10:41 /11:94 /12:298 /13:582 /14:1199 /15:2096 /16:13679 /17:8212 /18:13487 /19:24730 /20:44446 /21:52055 /22:112877 /23:105060 /24:633027 /25:0 /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 6734 12537 UNINET, MX 12479 6234 7292 UNI2-AS, ES 11492 3598 4785 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3478 3690 SHAW, CA 22773 2982 4656 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2820 3861 VIASAT-SP-BACKBONE, US 16509 2412 14218 AMAZON-02, US 30036 2315 2659 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2210 3455 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/AARNET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2437 2:1565 3:960 4:10 5:4925 6:189 7:6 8:1515 9:6 11:172 12:1233 13:547 14:2623 15:410 16:303 17:387 18:906 20:583 21:4 22:188 23:8095 24:2610 25:2 27:2809 29:19 31:3353 32:31 33:1 34:81 35:275 36:4536 37:4568 38:9286 39:1174 40:444 41:4446 42:1949 43:2795 44:405 45:19140 46:5167 47:365 49:2144 50:2056 51:596 52:1624 54:352 55:1105 56:11 57:292 58:2289 59:1307 60:1190 61:2982 62:3088 63:1741 64:5908 65:2112 66:5897 67:3247 68:1489 69:4143 70:1032 71:634 72:2993 74:2903 75:1518 76:600 77:2761 78:1933 79:1781 80:2274 81:2122 82:3626 83:1474 84:2007 85:3570 86:1103 87:2145 88:1363 89:4515 90:838 91:8387 92:2805 93:2991 94:4142 95:4553 96:1478 97:311 98:953 99:753 100:68 101:1185 102:4265 103:32187 104:5460 105:798 106:912 107:2799 108:1196 109:4239 110:2240 111:3853 112:2749 113:1883 114:2081 115:2284 116:2104 117:3089 118:3063 119:2017 120:2349 121:1511 122:2849 123:2283 124:1595 125:2899 126:125 128:1616 129:967 130:1500 131:2242 132:782 133:461 134:1630 135:366 136:1492 137:1336 138:2860 139:1603 140:1701 141:1555 142:2249 143:2142 144:1335 145:634 146:2184 147:2117 148:2778 149:2845 150:1281 151:2644 152:2268 153:664 154:8143 155:2232 156:3255 157:2211 158:1407 159:2646 160:3777 161:2004 162:3984 163:2331 164:1954 165:2557 166:1323 167:2122 168:3828 169:786 170:5447 171:1090 172:4520 173:3426 174:910 175:1344 176:3763 177:4703 178:4292 179:2276 180:2748 181:4316 182:3784 183:2581 184:2079 185:21698 186:5408 187:4718 188:4381 189:4432 190:9691 191:1513 192:11450 193:9503 194:7843 195:5593 196:3266 197:3240 198:6230 199:6104 200:8191 201:6376 202:10470 203:10592 204:4640 205:3720 206:4408 207:3869 208:4266 209:5381 210:4764 211:2646 212:4888 213:4008 214:1038 215:54 216:7151 217:3350 218:1574 219:400 220:2197 221:1267 222:764 223:3111 End of report