IPv4 R&E Routing Table Report 21:10 GMT Sat 31 Jan, 2026 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: 1030280 Prefixes after maximum aggregation (per Origin AS): 395663 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 508133 Number of IPv4 prefixes with a valid ROA: 615694 Number of IPv4 prefixes with an invalid ROA: 109 Number of IPv4 prefixes with no ROA: 414477 Total ASes present in the Internet Routing Table: 77817 Prefixes per ASN: 13.24 Origin-only ASes present in the Internet Routing Table: 66604 Origin ASes announcing only one prefix: 27192 Transit ASes present in the Internet Routing Table: 11213 Transit-only ASes present in the Internet Routing Table: 570 Paths with bogon ASNs present in the IPv4 Routing Table: 20 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 68 Max AS path prepend of ASN (269326) 61 Prefixes from unregistered ASNs in the Routing Table: 1034 Number of instances of unregistered ASNs: 1076 Number of 32-bit ASNs allocated by the RIRs: 48540 Number of 32-bit ASNs visible in the Routing Table: 39727 Prefixes from 32-bit ASNs in the Routing Table: 220978 Number of bogon 32-bit ASNs visible in the Routing Table: 98 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 478 Number of addresses announced to Internet: 3105212160 Equivalent to 185 /8s, 21 /16s and 199 /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: 335105 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 280565 Total APNIC prefixes after maximum aggregation: 82045 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 266752 Unique aggregates announced from the APNIC address blocks: 107168 APNIC Region origin ASes present in the Internet Routing Table: 15017 APNIC Prefixes per ASN: 17.76 APNIC Region origin ASes announcing only one prefix: 4598 APNIC Region transit ASes present in the Internet Routing Table: 2004 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10580 Number of APNIC addresses announced to Internet: 753641216 Equivalent to 44 /8s, 235 /16s and 167 /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: 302706 Total ARIN prefixes after maximum aggregation: 135745 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 302342 Unique aggregates announced from the ARIN address blocks: 146350 ARIN Region origin ASes present in the Internet Routing Table: 19390 ARIN Prefixes per ASN: 15.59 ARIN Region origin ASes announcing only one prefix: 7076 ARIN Region transit ASes present in the Internet Routing Table: 1977 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: 5453 Number of ARIN addresses announced to Internet: 1343134208 Equivalent to 80 /8s, 14 /16s and 154 /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: 283299 Total RIPE prefixes after maximum aggregation: 140023 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 285462 Unique aggregates announced from the RIPE address blocks: 185194 RIPE Region origin ASes present in the Internet Routing Table: 29156 RIPE Prefixes per ASN: 9.79 RIPE Region origin ASes announcing only one prefix: 12088 RIPE Region transit ASes present in the Internet Routing Table: 4070 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: 12963 Number of RIPE addresses announced to Internet: 733805824 Equivalent to 43 /8s, 188 /16s and 253 /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: 126156 Total LACNIC prefixes after maximum aggregation: 30247 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 121999 Unique aggregates announced from the LACNIC address blocks: 49535 LACNIC Region origin ASes present in the Internet Routing Table: 11354 LACNIC Prefixes per ASN: 10.75 LACNIC Region origin ASes announcing only one prefix: 2690 LACNIC Region transit ASes present in the Internet Routing Table: 2568 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9353 Number of LACNIC addresses announced to Internet: 170892800 Equivalent to 10 /8s, 47 /16s and 158 /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: 36520 Total AfriNIC prefixes after maximum aggregation: 6934 AfriNIC Deaggregation factor: 5.27 Prefixes being announced from the AfriNIC address blocks: 53246 Unique aggregates announced from the AfriNIC address blocks: 19494 AfriNIC Region origin ASes present in the Internet Routing Table: 2014 AfriNIC Prefixes per ASN: 26.44 AfriNIC Region origin ASes announcing only one prefix: 740 AfriNIC Region transit ASes present in the Internet Routing Table: 391 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 52 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1378 Number of AfriNIC addresses announced to Internet: 103456768 Equivalent to 6 /8s, 42 /16s and 160 /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 13616 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 6019 833 571 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4727 544 337 BBIL-AP BHARTI Airtel Ltd., IN 18403 4419 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4037 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3726 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3420 831 182 CMNET-JIANGSU-AP China Mobile communicati 45899 3322 1868 96 VNPT-AS-VN VNPT Corp, VN 17561 3139 197 620 LCS-AS-AP LARUS Limited, HK 24560 2965 865 495 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 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 14095 38819 5519 AMAZON-02 - Amazon.com, Inc., US 22773 4781 3116 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4637 308 1020 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3698 1321 71 SHAW - Shaw Communications, CA 174 3655 8766 850 COGENT-174 - Cogent Communications, LLC, 396982 3322 4866 496 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3142 54728 2393 DNIC-AS-00749 - United States Department 16625 2946 1273 2171 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2695 222 902 AS-COLOCROSSING - HostPapa, 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 7242 1711 149 UNI2-AS, ES 39891 4901 302 71 ALJAWWALSTC-AS, SA 20940 3929 3393 113 AKAMAI-ASN1, NL 9009 3901 365 2230 M247, RO 12389 3152 2317 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2562 182 1861 CDNEXT, GB 34984 2434 366 578 TELLCOM-AS, TR 8452 1712 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1597 241 769 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 12686 3298 607 UNINET, MX 10620 3445 457 1107 Telmex Colombia S.A., CO 13999 2483 506 350 Mega Cable, S.A. de C.V., MX 11830 1990 369 65 Instituto Costarricense de Electricidad y 11664 1410 278 31 Techtel LMDS Comunicaciones Interactivas 28573 1375 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1256 371 22 INTEGRATEL PERU S.A.A., PE 22884 1056 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1016 2486 57 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 1983 646 33 RAYA-AS, EG 36992 1843 1532 339 ETISALAT-MISR, EG 24863 1278 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1146 524 47 Vodafone-, EG 37069 1115 1100 11 MOBINIL, EG 29571 1070 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 328608 571 53 165 Africa-on-Cloud-AS, ZA 36914 567 82 3 KENET-AS, 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 14095 38819 5519 AMAZON-02 - Amazon.com, Inc., US 9808 13616 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12686 3298 607 UNINET, MX 12479 7242 1711 149 UNI2-AS, ES 7545 6019 833 571 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4901 302 71 ALJAWWALSTC-AS, SA 22773 4781 3116 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 9498 4727 544 337 BBIL-AP BHARTI Airtel Ltd., IN 11492 4637 308 1020 CABLEONE - CABLE ONE, INC., US 18403 4419 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 13616 13496 CHINAMOBILE-CN China Mobile Communications Grou 8151 12686 12079 UNINET, MX 12479 7242 7093 UNI2-AS, ES 7545 6019 5448 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4901 4830 ALJAWWALSTC-AS, SA 22773 4781 4415 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 18403 4419 4395 FPT-AS-AP FPT Telecom Company, VN 9498 4727 4390 BBIL-AP BHARTI Airtel Ltd., IN 7552 4037 4008 VIETEL-AS-AP Viettel Group, VN 20940 3929 3816 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 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887 - C 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 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.195.0/24 3356 LEVEL3 - Level 3 Parent Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS 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: 7575 AARNET-AS-AP Australian Academic and Res 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://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 /10:40 /11:93 /12:302 /13:582 /14:1200 /15:2091 /16:13690 /17:8266 /18:13523 /19:24868 /20:45224 /21:52239 /22:113546 /23:106472 /24:648113 /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 6856 12686 UNINET, MX 12479 6170 7242 UNI2-AS, ES 39891 3651 4901 ALJAWWALSTC-AS, SA 11492 3497 4637 CABLEONE - CABLE ONE, INC., US 6327 3479 3698 SHAW - Shaw Communications, CA 22773 3051 4781 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2509 14095 AMAZON-02 - Amazon.com, Inc., US 30036 2315 2660 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2225 3445 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) ---------------------------------------------- 1:2508 2:1549 3:984 4:9 5:5087 6:185 7:6 8:1506 9:15 11:172 12:1226 13:619 14:2636 15:419 16:179 17:391 18:918 20:597 21:4 22:188 23:8176 24:2624 25:2 27:2825 29:19 31:3441 32:31 34:81 35:291 36:4724 37:4505 38:10378 39:1258 40:439 41:4529 42:1973 43:2939 44:415 45:19714 46:4950 47:400 48:38 49:2195 50:2057 51:598 52:1255 54:238 55:1119 56:11 57:315 58:2318 59:1341 60:1172 61:3118 62:3101 63:1769 64:6197 65:2099 66:6020 67:3252 68:1491 69:4201 70:1029 71:624 72:3100 74:2975 75:1509 76:596 77:2695 78:1926 79:1806 80:2308 81:2156 82:4025 83:1472 84:2028 85:3701 86:1104 87:2258 88:1341 89:4659 90:823 91:8418 92:2870 93:3011 94:4313 95:4557 96:1448 97:313 98:949 99:782 100:69 101:1549 102:4382 103:32358 104:5399 105:798 106:918 107:2835 108:1222 109:4201 110:2299 111:4066 112:3121 113:1940 114:2171 115:2309 116:2171 117:3376 118:2995 119:2078 120:2672 121:1522 122:2960 123:2303 124:1612 125:2959 126:125 128:1690 129:947 130:1574 131:2352 132:773 133:461 134:1621 135:543 136:1632 137:1552 138:2964 139:1623 140:1780 141:1565 142:2476 143:2171 144:1606 145:629 146:2204 147:2279 148:2785 149:2953 150:1316 151:2678 152:2288 153:963 154:9660 155:2291 156:4586 157:2257 158:1505 159:2754 160:3744 161:1998 162:4047 163:2342 164:1971 165:2641 166:1287 167:2220 168:3937 169:915 170:5486 171:1115 172:4586 173:3441 174:890 175:1345 176:3781 177:4737 178:4362 179:2289 180:2964 181:4393 182:3916 183:2827 184:2024 185:21733 186:5568 187:4853 188:4610 189:4480 190:9665 191:1531 192:11493 193:9511 194:7830 195:5640 196:3257 197:3232 198:6248 199:6105 200:8181 201:6391 202:10609 203:10657 204:4735 205:3774 206:4451 207:3963 208:4363 209:5466 210:4803 211:2688 212:4954 213:4039 214:1072 215:54 216:7148 217:3483 218:1627 219:419 220:2182 221:1313 222:932 223:3294 End of report