IPv4 R&E Routing Table Report 21:10 GMT Thu 02 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: 1005227 Prefixes after maximum aggregation (per Origin AS): 389904 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 495892 Number of IPv4 prefixes with a valid ROA: 574854 Number of IPv4 prefixes with an invalid ROA: 147 Number of IPv4 prefixes with no ROA: 430226 Total ASes present in the Internet Routing Table: 77345 Prefixes per ASN: 13.00 Origin-only ASes present in the Internet Routing Table: 66232 Origin ASes announcing only one prefix: 27065 Transit ASes present in the Internet Routing Table: 11113 Transit-only ASes present in the Internet Routing Table: 556 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: 973 Number of instances of unregistered ASNs: 1002 Number of 32-bit ASNs allocated by the RIRs: 47612 Number of 32-bit ASNs visible in the Routing Table: 39057 Prefixes from 32-bit ASNs in the Routing Table: 211231 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: 435 Number of addresses announced to Internet: 3111785984 Equivalent to 185 /8s, 122 /16s and 22 /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: 327739 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 268593 Total APNIC prefixes after maximum aggregation: 79616 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 258512 Unique aggregates announced from the APNIC address blocks: 105812 APNIC Region origin ASes present in the Internet Routing Table: 14810 APNIC Prefixes per ASN: 17.46 APNIC Region origin ASes announcing only one prefix: 4510 APNIC Region transit ASes present in the Internet Routing Table: 1984 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: 10364 Number of APNIC addresses announced to Internet: 750927104 Equivalent to 44 /8s, 194 /16s and 61 /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: 295638 Total ARIN prefixes after maximum aggregation: 133845 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 296991 Unique aggregates announced from the ARIN address blocks: 142971 ARIN Region origin ASes present in the Internet Routing Table: 19316 ARIN Prefixes per ASN: 15.38 ARIN Region origin ASes announcing only one prefix: 7083 ARIN Region transit ASes present in the Internet Routing Table: 1985 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 49 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5343 Number of ARIN addresses announced to Internet: 1352884992 Equivalent to 80 /8s, 163 /16s and 99 /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: 280046 Total RIPE prefixes after maximum aggregation: 138437 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 279622 Unique aggregates announced from the RIPE address blocks: 180712 RIPE Region origin ASes present in the Internet Routing Table: 29071 RIPE Prefixes per ASN: 9.62 RIPE Region origin ASes announcing only one prefix: 12092 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: 52 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12753 Number of RIPE addresses announced to Internet: 732933888 Equivalent to 43 /8s, 175 /16s and 175 /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: 125163 Total LACNIC prefixes after maximum aggregation: 30482 LACNIC Deaggregation factor: 4.11 Prefixes being announced from the LACNIC address blocks: 121386 Unique aggregates announced from the LACNIC address blocks: 49534 LACNIC Region origin ASes present in the Internet Routing Table: 11292 LACNIC Prefixes per ASN: 10.75 LACNIC Region origin ASes announcing only one prefix: 2660 LACNIC Region transit ASes present in the Internet Routing Table: 2532 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: 9265 Number of LACNIC addresses announced to Internet: 170817792 Equivalent to 10 /8s, 46 /16s and 121 /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: 34814 Total AfriNIC prefixes after maximum aggregation: 6863 AfriNIC Deaggregation factor: 5.07 Prefixes being announced from the AfriNIC address blocks: 48280 Unique aggregates announced from the AfriNIC address blocks: 16476 AfriNIC Region origin ASes present in the Internet Routing Table: 1969 AfriNIC Prefixes per ASN: 24.52 AfriNIC Region origin ASes announcing only one prefix: 720 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: 1332 Number of AfriNIC addresses announced to Internet: 103984896 Equivalent to 6 /8s, 50 /16s and 175 /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 13670 8730 116 CHINAMOBILE-CN China Mobile Communication 7545 6184 835 605 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4508 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4470 536 312 BBIL-AP BHARTI Airtel Ltd., IN 7552 3958 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3725 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3296 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 3116 827 180 CMNET-JIANGSU-AP China Mobile communicati 24560 2925 862 501 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 9304 2352 504 1505 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 14312 40897 5395 AMAZON-02, US 11492 4749 320 793 CABLEONE, US 22773 3974 3065 337 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3678 1320 82 SHAW, CA 396982 3272 4824 461 GOOGLE-CLOUD-PLATFORM, US 749 3220 54766 2471 DNIC-AS-00749, US 174 3184 8766 793 COGENT-174, US 4155 3086 239 1707 USDA-1, US 16625 3032 1294 2209 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 7438 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 20940 4027 3395 126 AKAMAI-ASN1, NL 9009 3952 372 2233 M247, RO 12389 3123 2315 867 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2455 174 1779 CDNEXT, GB 34984 2415 363 576 TELLCOM-AS, TR 203020 1888 203 908 HOSTROYALE, IN 8452 1626 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 12385 3280 575 UNINET, MX 10620 3504 474 1047 Telmex Colombia S.A., CO 13999 2541 511 346 Mega Cable, S.A. de C.V., MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 28573 1367 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1178 371 23 Telefonica del Peru S.A.A., PE 22884 1069 71 353 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1010 2486 56 TIM SA, BR 11664 934 278 31 Techtel LMDS Comunicaciones Interactivas 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 1770 616 28 RAYA-AS, EG 36992 1509 1498 384 ETISALAT-MISR, EG 36903 1250 554 97 MT-MPLS, MA 24863 1248 389 20 LINKdotNET-AS, EG 29571 1188 102 53 ORANGE-COTE-IVOIRE, CI 37069 1085 1096 13 MOBINIL, EG 36935 950 520 42 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 556 82 3 KENET-AS, KE 15399 548 57 59 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 14312 40897 5395 AMAZON-02, US 9808 13670 8730 116 CHINAMOBILE-CN China Mobile Communication 8151 12385 3280 575 UNINET, MX 12479 7438 1711 149 UNI2-AS, ES 7545 6184 835 605 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4749 320 793 CABLEONE, US 18403 4508 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4470 536 312 BBIL-AP BHARTI Airtel Ltd., IN 20940 4027 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 13670 13554 CHINAMOBILE-CN China Mobile Communications Grou 8151 12385 11810 UNINET, MX 12479 7438 7289 UNI2-AS, ES 7545 6184 5579 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4508 4483 FPT-AS-AP FPT Telecom Company, VN 9498 4470 4158 BBIL-AP BHARTI Airtel Ltd., IN 11492 4749 3956 CABLEONE, US 7552 3958 3930 VIETEL-AS-AP Viettel Group, VN 20940 4027 3901 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 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, 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 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 23.140.216.0/24 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 23.146.140.0/24 Origin: 7029 WINDSTREAM, US 23.146.140.0/24 Transit: 6461 ZAYO-6461, 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 /13:583 /14:1204 /15:2131 /16:13786 /17:8208 /18:13456 /19:24645 /20:44306 /21:51899 /22:112578 /23:104078 /24:627887 /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 6601 12385 UNINET, MX 12479 6401 7438 UNI2-AS, ES 11492 3562 4749 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3467 3678 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2525 3974 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2406 14312 AMAZON-02, US 30036 2289 2629 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2222 3504 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) ---------------------------------------------- 1:2425 2:1554 3:944 4:10 5:4836 6:169 7:6 8:1528 9:6 11:172 12:1242 13:574 14:2636 15:402 16:304 17:389 18:906 20:574 21:4 22:188 23:7910 24:2698 25:2 27:2800 29:19 31:3339 32:31 33:1 34:81 35:267 36:4442 37:4552 38:9504 39:1089 40:296 41:4360 42:2006 43:2728 44:391 45:18879 46:5200 47:342 49:2019 50:2049 51:594 52:1592 54:359 55:1166 56:11 57:286 58:2259 59:1324 60:1188 61:2921 62:3086 63:1768 64:5667 65:2140 66:4943 67:3111 68:1092 69:3950 70:1036 71:639 72:2971 74:2838 75:1495 76:596 77:2773 78:1919 79:1753 80:2250 81:2124 82:3453 83:1476 84:1987 85:3523 86:1100 87:2133 88:1357 89:4488 90:808 91:8380 92:2778 93:2987 94:4163 95:4463 96:1493 97:310 98:952 99:741 100:71 101:1220 102:4159 103:32304 104:5354 105:776 106:895 107:2652 108:1208 109:4223 110:2244 111:3773 112:2649 113:1846 114:1992 115:2340 116:2078 117:2939 118:3057 119:1930 120:2265 121:1355 122:2819 123:2306 124:1659 125:2882 126:93 128:1604 129:964 130:1290 131:2147 132:785 133:461 134:1610 135:365 136:1493 137:1310 138:2811 139:1608 140:1642 141:1543 142:2039 143:2054 144:1273 145:627 146:2184 147:2125 148:2738 149:2906 150:1269 151:2543 152:2174 153:643 154:7372 155:2051 156:3471 157:1999 158:1421 159:2597 160:3582 161:1992 162:3947 163:2304 164:2120 165:2584 166:1558 167:2102 168:3828 169:777 170:5360 171:1018 172:4249 173:3404 174:909 175:1344 176:3806 177:4787 178:4267 179:2309 180:2623 181:4255 182:3727 183:2536 184:2071 185:21683 186:5366 187:4718 188:4304 189:4422 190:9699 191:1541 192:11414 193:9482 194:7796 195:5579 196:3253 197:3226 198:6243 199:8755 200:8210 201:6350 202:10453 203:10584 204:4593 205:3689 206:4565 207:3695 208:4277 209:5360 210:4764 211:2682 212:4803 213:3897 214:1034 215:52 216:6906 217:3355 218:1566 219:394 220:2187 221:1236 222:752 223:3018 End of report