IPv4 R&E Routing Table Report 21:10 GMT Fri 10 Oct, 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: 1008333 Prefixes after maximum aggregation (per Origin AS): 391140 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 496357 Number of IPv4 prefixes with a valid ROA: 578109 Number of IPv4 prefixes with an invalid ROA: 146 Number of IPv4 prefixes with no ROA: 430078 Total ASes present in the Internet Routing Table: 77380 Prefixes per ASN: 13.03 Origin-only ASes present in the Internet Routing Table: 66289 Origin ASes announcing only one prefix: 27082 Transit ASes present in the Internet Routing Table: 11091 Transit-only ASes present in the Internet Routing Table: 561 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 ( 59958) 48 Prefixes from unregistered ASNs in the Routing Table: 1006 Number of instances of unregistered ASNs: 1035 Number of 32-bit ASNs allocated by the RIRs: 47665 Number of 32-bit ASNs visible in the Routing Table: 39092 Prefixes from 32-bit ASNs in the Routing Table: 212641 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: 487 Number of addresses announced to Internet: 3111159296 Equivalent to 185 /8s, 112 /16s and 134 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 328458 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 269295 Total APNIC prefixes after maximum aggregation: 79965 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 259196 Unique aggregates announced from the APNIC address blocks: 105795 APNIC Region origin ASes present in the Internet Routing Table: 14811 APNIC Prefixes per ASN: 17.50 APNIC Region origin ASes announcing only one prefix: 4521 APNIC Region transit ASes present in the Internet Routing Table: 1979 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: 10368 Number of APNIC addresses announced to Internet: 751468800 Equivalent to 44 /8s, 202 /16s and 129 /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: 297417 Total ARIN prefixes after maximum aggregation: 134438 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 298211 Unique aggregates announced from the ARIN address blocks: 143846 ARIN Region origin ASes present in the Internet Routing Table: 19340 ARIN Prefixes per ASN: 15.42 ARIN Region origin ASes announcing only one prefix: 7100 ARIN Region transit ASes present in the Internet Routing Table: 1984 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5361 Number of ARIN addresses announced to Internet: 1352325632 Equivalent to 80 /8s, 154 /16s and 218 /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: 280703 Total RIPE prefixes after maximum aggregation: 138852 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 280303 Unique aggregates announced from the RIPE address blocks: 181060 RIPE Region origin ASes present in the Internet Routing Table: 29067 RIPE Prefixes per ASN: 9.64 RIPE Region origin ASes announcing only one prefix: 12083 RIPE Region transit ASes present in the Internet Routing Table: 4016 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 52 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12757 Number of RIPE addresses announced to Internet: 732557312 Equivalent to 43 /8s, 169 /16s and 240 /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: 124957 Total LACNIC prefixes after maximum aggregation: 30349 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 121125 Unique aggregates announced from the LACNIC address blocks: 49372 LACNIC Region origin ASes present in the Internet Routing Table: 11299 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2664 LACNIC Region transit ASes present in the Internet Routing Table: 2534 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9275 Number of LACNIC addresses announced to Internet: 170573568 Equivalent to 10 /8s, 42 /16s and 191 /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: 34955 Total AfriNIC prefixes after maximum aggregation: 6860 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 49010 Unique aggregates announced from the AfriNIC address blocks: 15856 AfriNIC Region origin ASes present in the Internet Routing Table: 1967 AfriNIC Prefixes per ASN: 24.92 AfriNIC Region origin ASes announcing only one prefix: 714 AfriNIC Region transit ASes present in the Internet Routing Table: 377 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: 1331 Number of AfriNIC addresses announced to Internet: 103976704 Equivalent to 6 /8s, 50 /16s and 143 /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 13731 8730 117 CHINAMOBILE-CN China Mobile Communication 7545 6185 835 605 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4504 347 24 FPT-AS-AP FPT Telecom Company, VN 9498 4471 536 312 BBIL-AP BHARTI Airtel Ltd., IN 7552 3948 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3687 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3299 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 3136 827 180 CMNET-JIANGSU-AP China Mobile communicati 24560 2927 863 499 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 9304 2467 512 1596 HUTCHISON-AS-AP HGC Global Communications 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 14306 40997 5366 AMAZON-02, US 11492 4756 321 791 CABLEONE, US 22773 4014 3067 363 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3683 1320 82 SHAW, CA 396982 3273 4824 465 GOOGLE-CLOUD-PLATFORM, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3115 241 1743 USDA-1, US 174 3084 8767 802 COGENT-174, US 16625 3038 1300 2211 AKAMAI-AS, 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 7401 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 20940 4043 3395 126 AKAMAI-ASN1, NL 9009 3953 372 2236 M247, RO 12389 3139 2315 867 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2513 180 1826 CDNEXT, GB 34984 2415 363 576 TELLCOM-AS, TR 203020 2037 223 1002 HOSTROYALE, IN 8452 1628 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 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 12346 3254 594 UNINET, MX 10620 3476 468 1086 Telmex Colombia S.A., CO 13999 2515 508 351 Mega Cable, S.A. de C.V., MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 28573 1369 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1239 278 32 Techtel LMDS Comunicaciones Interactivas 6147 1178 371 23 Telefonica del Peru S.A.A., PE 22884 1066 71 365 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1011 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 1766 600 27 RAYA-AS, EG 36992 1512 1498 385 ETISALAT-MISR, EG 24863 1250 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 29571 1189 102 52 ORANGE-COTE-IVOIRE, CI 37069 1085 1096 13 MOBINIL, EG 36935 958 523 47 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 574 82 3 KENET-AS, KE 15399 543 56 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 14306 40997 5366 AMAZON-02, US 9808 13731 8730 117 CHINAMOBILE-CN China Mobile Communication 8151 12346 3254 594 UNINET, MX 12479 7401 1711 149 UNI2-AS, ES 7545 6185 835 605 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4756 321 791 CABLEONE, US 18403 4504 347 24 FPT-AS-AP FPT Telecom Company, VN 9498 4471 536 312 BBIL-AP BHARTI Airtel Ltd., IN 20940 4043 3395 126 AKAMAI-ASN1, NL 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 13731 13614 CHINAMOBILE-CN China Mobile Communications Grou 8151 12346 11752 UNINET, MX 12479 7401 7252 UNI2-AS, ES 7545 6185 5580 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4504 4480 FPT-AS-AP FPT Telecom Company, VN 9498 4471 4159 BBIL-AP BHARTI Airtel Ltd., IN 11492 4756 3965 CABLEONE, US 7552 3948 3920 VIETEL-AS-AP Viettel Group, VN 20940 4043 3917 AKAMAI-ASN1, NL 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 7029 WINDSTREAM, 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 3356 LEVEL3, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 397015 UNALLOCATED 8.44.246.0/24 12025 IMDC-AS12025, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US 14.192.20.0/22 Transit: 21859 ZEN-ECN, US 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 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 /11:93 /12:301 /13:584 /14:1203 /15:2127 /16:13785 /17:8212 /18:13473 /19:24681 /20:44340 /21:51937 /22:112637 /23:104327 /24:630561 /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 6582 12346 UNINET, MX 12479 6366 7401 UNI2-AS, ES 11492 3569 4756 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3472 3683 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2524 4014 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2395 14306 AMAZON-02, US 30036 2299 2639 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2211 3476 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) ---------------------------------------------- 1:2427 2:1563 3:941 4:10 5:4850 6:170 7:6 8:1531 9:6 11:172 12:1240 13:565 14:2652 15:401 16:304 17:388 18:908 20:574 21:4 22:188 23:7951 24:2702 25:2 27:2808 29:19 31:3360 32:31 33:1 34:81 35:267 36:4449 37:4548 38:9469 39:1098 40:470 41:4310 42:2026 43:2734 44:395 45:19103 46:5195 47:366 49:2081 50:2056 51:596 52:1592 54:359 55:1182 56:11 57:284 58:2300 59:1305 60:1189 61:2920 62:3091 63:1769 64:5677 65:2129 66:5070 67:3124 68:1210 69:4016 70:1039 71:636 72:2978 74:2839 75:1504 76:598 77:2774 78:1916 79:1750 80:2246 81:2133 82:3474 83:1473 84:1992 85:3537 86:1100 87:2144 88:1358 89:4511 90:808 91:8387 92:2809 93:2984 94:4163 95:4521 96:1494 97:312 98:948 99:753 100:71 101:1220 102:4174 103:32255 104:5457 105:787 106:894 107:2667 108:1210 109:4213 110:2247 111:3768 112:2661 113:1851 114:2064 115:2340 116:2072 117:3024 118:3038 119:1981 120:2285 121:1487 122:2810 123:2268 124:1657 125:2883 126:125 128:1605 129:964 130:1386 131:2168 132:791 133:462 134:1624 135:363 136:1490 137:1320 138:2831 139:1601 140:1642 141:1543 142:2132 143:2085 144:1265 145:628 146:2189 147:2136 148:2742 149:2926 150:1272 151:2602 152:2173 153:642 154:7893 155:2114 156:3292 157:1987 158:1431 159:2607 160:3630 161:1994 162:3954 163:2300 164:1950 165:2549 166:1562 167:2108 168:3835 169:781 170:5381 171:1022 172:4476 173:3413 174:906 175:1345 176:3808 177:4764 178:4293 179:2271 180:2706 181:4247 182:3750 183:2541 184:2070 185:21676 186:5379 187:4692 188:4377 189:4409 190:9675 191:1556 192:11404 193:9477 194:7796 195:5576 196:3300 197:3243 198:6232 199:8787 200:8193 201:6337 202:10471 203:10612 204:4604 205:3693 206:4439 207:3715 208:4265 209:5373 210:4745 211:2684 212:4824 213:3902 214:1036 215:52 216:6958 217:3365 218:1576 219:394 220:2186 221:1250 222:753 223:3057 End of report