IPv4 R&E Routing Table Report 21:10 GMT Sun 02 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: 1011133 Prefixes after maximum aggregation (per Origin AS): 391441 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 499693 Number of IPv4 prefixes with a valid ROA: 584766 Number of IPv4 prefixes with an invalid ROA: 130 Number of IPv4 prefixes with no ROA: 426237 Total ASes present in the Internet Routing Table: 77435 Prefixes per ASN: 13.06 Origin-only ASes present in the Internet Routing Table: 66300 Origin ASes announcing only one prefix: 27105 Transit ASes present in the Internet Routing Table: 11135 Transit-only ASes present in the Internet Routing Table: 558 Paths with bogon ASNs present in the IPv4 Routing Table: 5 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 52 Max AS path prepend of ASN (207092) 41 Prefixes from unregistered ASNs in the Routing Table: 979 Number of instances of unregistered ASNs: 1008 Number of 32-bit ASNs allocated by the RIRs: 47879 Number of 32-bit ASNs visible in the Routing Table: 39198 Prefixes from 32-bit ASNs in the Routing Table: 214512 Number of bogon 32-bit ASNs visible in the Routing Table: 68 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 422 Number of addresses announced to Internet: 3113043456 Equivalent to 185 /8s, 141 /16s and 70 /24s Percentage of available address space announced: 84.1 Percentage of allocated address space announced: 84.1 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: 331767 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 270609 Total APNIC prefixes after maximum aggregation: 80569 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 260469 Unique aggregates announced from the APNIC address blocks: 106226 APNIC Region origin ASes present in the Internet Routing Table: 14838 APNIC Prefixes per ASN: 17.55 APNIC Region origin ASes announcing only one prefix: 4529 APNIC Region transit ASes present in the Internet Routing Table: 1995 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10401 Number of APNIC addresses announced to Internet: 751658240 Equivalent to 44 /8s, 205 /16s and 101 /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: 297644 Total ARIN prefixes after maximum aggregation: 133538 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 298144 Unique aggregates announced from the ARIN address blocks: 145056 ARIN Region origin ASes present in the Internet Routing Table: 19384 ARIN Prefixes per ASN: 15.38 ARIN Region origin ASes announcing only one prefix: 7123 ARIN Region transit ASes present in the Internet Routing Table: 1989 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: 5409 Number of ARIN addresses announced to Internet: 1353357312 Equivalent to 80 /8s, 170 /16s and 152 /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: 281296 Total RIPE prefixes after maximum aggregation: 139460 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 281710 Unique aggregates announced from the RIPE address blocks: 182139 RIPE Region origin ASes present in the Internet Routing Table: 29093 RIPE Prefixes per ASN: 9.68 RIPE Region origin ASes announcing only one prefix: 12087 RIPE Region transit ASes present in the Internet Routing Table: 4034 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 45 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12796 Number of RIPE addresses announced to Internet: 733776128 Equivalent to 43 /8s, 188 /16s and 137 /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: 125550 Total LACNIC prefixes after maximum aggregation: 30409 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 121645 Unique aggregates announced from the LACNIC address blocks: 49488 LACNIC Region origin ASes present in the Internet Routing Table: 11310 LACNIC Prefixes per ASN: 10.76 LACNIC Region origin ASes announcing only one prefix: 2668 LACNIC Region transit ASes present in the Internet Routing Table: 2559 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: 9291 Number of LACNIC addresses announced to Internet: 170716160 Equivalent to 10 /8s, 44 /16s and 236 /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: 35055 Total AfriNIC prefixes after maximum aggregation: 6807 AfriNIC Deaggregation factor: 5.15 Prefixes being announced from the AfriNIC address blocks: 48742 Unique aggregates announced from the AfriNIC address blocks: 16411 AfriNIC Region origin ASes present in the Internet Routing Table: 1930 AfriNIC Prefixes per ASN: 25.25 AfriNIC Region origin ASes announcing only one prefix: 698 AfriNIC Region transit ASes present in the Internet Routing Table: 373 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1301 Number of AfriNIC addresses announced to Internet: 103312128 Equivalent to 6 /8s, 40 /16s and 107 /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 13379 8730 117 CHINAMOBILE-CN China Mobile Communication 7545 6114 834 591 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4500 537 313 BBIL-AP BHARTI Airtel Ltd., IN 18403 4395 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 3985 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3717 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3300 1868 98 VNPT-AS-VN VNPT Corp, VN 56046 3244 827 180 CMNET-JIANGSU-AP China Mobile communicati 24560 2936 864 504 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 14445 41088 5388 AMAZON-02, US 11492 4776 317 802 CABLEONE, US 22773 4635 3107 404 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3861 286 85 VIASAT-SP-BACKBONE, US 6327 3687 1320 82 SHAW, CA 396982 3279 4826 470 GOOGLE-CLOUD-PLATFORM, US 749 3216 54766 2467 DNIC-AS-00749, US 16625 2990 1277 2183 AKAMAI-AS, US 36352 2851 231 921 AS-COLOCROSSING, US 174 2668 8766 843 COGENT-174, 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 7298 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 9009 4020 378 2289 M247, RO 20940 4014 3395 124 AKAMAI-ASN1, NL 12389 3150 2317 868 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2524 177 1817 CDNEXT, GB 34984 2417 363 575 TELLCOM-AS, TR 8452 1645 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1595 186 923 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 12497 3301 570 UNINET, MX 10620 3455 463 1098 Telmex Colombia S.A., CO 13999 2506 511 350 Mega Cable, S.A. de C.V., MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 28573 1374 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1353 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1294 278 31 Techtel LMDS Comunicaciones Interactivas 6147 1273 371 23 Telefonica del Peru S.A.A., PE 22884 1061 70 365 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1026 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 1963 630 32 RAYA-AS, EG 36992 1678 1509 399 ETISALAT-MISR, EG 24863 1262 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 29571 1191 102 52 ORANGE-COTE-IVOIRE, CI 36935 1119 523 47 Vodafone-, EG 37069 1085 1096 13 MOBINIL, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 561 82 3 KENET-AS, KE 3741 522 725 319 NTT-DATA-Inc, ZA 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 14445 41088 5388 AMAZON-02, US 9808 13379 8730 117 CHINAMOBILE-CN China Mobile Communication 8151 12497 3301 570 UNINET, MX 12479 7298 1711 149 UNI2-AS, ES 7545 6114 834 591 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4776 317 802 CABLEONE, US 22773 4635 3107 404 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4500 537 313 BBIL-AP BHARTI Airtel Ltd., IN 18403 4395 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 13379 13262 CHINAMOBILE-CN China Mobile Communications Grou 8151 12497 11927 UNINET, MX 12479 7298 7149 UNI2-AS, ES 7545 6114 5523 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4395 4371 FPT-AS-AP FPT Telecom Company, VN 22773 4635 4231 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4500 4187 BBIL-AP BHARTI Airtel Ltd., IN 11492 4776 3974 CABLEONE, US 7552 3985 3957 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 397015 UNALLOCATED 8.44.246.0/24 12025 IMDC-AS12025, US 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US 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 /8:16 /9:14 /10:41 /11:94 /12:298 /13:583 /14:1202 /15:2129 /16:13800 /17:8209 /18:13509 /19:24709 /20:44372 /21:52073 /22:112836 /23:104907 /24:632340 /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 6693 12497 UNINET, MX 12479 6259 7298 UNI2-AS, ES 11492 3589 4776 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3476 3687 SHAW, CA 22773 2986 4635 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2820 3861 VIASAT-SP-BACKBONE, US 16509 2437 14445 AMAZON-02, US 30036 2306 2648 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) ---------------------------------------------- 1:2430 2:1560 3:968 4:10 5:4892 6:172 7:6 8:1508 9:6 11:172 12:1240 13:549 14:2650 15:401 16:303 17:386 18:911 20:581 21:4 22:188 23:8077 24:2608 25:2 27:2816 29:19 31:3353 32:31 33:1 34:81 35:275 36:4500 37:4551 38:9350 39:1169 40:473 41:4251 42:1944 43:2779 44:403 45:19184 46:5199 47:368 49:2132 50:2054 51:596 52:1628 54:357 55:1093 56:11 57:292 58:2289 59:1304 60:1192 61:2973 62:3104 63:1760 64:5892 65:2127 66:5905 67:3245 68:1486 69:4150 70:1034 71:638 72:2987 74:2884 75:1512 76:601 77:2764 78:1927 79:1781 80:2269 81:2125 82:3587 83:1472 84:2002 85:3596 86:1109 87:2153 88:1362 89:4515 90:813 91:8415 92:2813 93:2998 94:4164 95:4566 96:1492 97:312 98:947 99:761 100:71 101:1331 102:4151 103:32172 104:5467 105:784 106:910 107:2792 108:1197 109:4215 110:2249 111:3850 112:2754 113:1882 114:2084 115:2288 116:2098 117:3070 118:3054 119:2002 120:2346 121:1500 122:2853 123:2260 124:1660 125:2892 126:124 128:1610 129:964 130:1454 131:2212 132:785 133:461 134:1629 135:365 136:1493 137:1337 138:2847 139:1594 140:1682 141:1577 142:2180 143:2121 144:1321 145:632 146:2188 147:2117 148:2779 149:2828 150:1276 151:2659 152:2272 153:651 154:7930 155:2209 156:3178 157:2000 158:1387 159:2632 160:3771 161:1986 162:3984 163:2320 164:1949 165:2545 166:1319 167:2123 168:3812 169:767 170:5417 171:1063 172:4503 173:3431 174:905 175:1341 176:3752 177:4776 178:4314 179:2300 180:2750 181:4305 182:3779 183:2588 184:2082 185:21699 186:5405 187:4729 188:4389 189:4461 190:9713 191:1610 192:11449 193:9500 194:7851 195:5576 196:3212 197:3231 198:6277 199:6097 200:8215 201:6381 202:10490 203:10652 204:4628 205:3692 206:4411 207:3869 208:4270 209:5427 210:4761 211:2666 212:4889 213:3974 214:1033 215:53 216:7166 217:3392 218:1576 219:398 220:2195 221:1267 222:765 223:3103 End of report