IPv4 R&E Routing Table Report 21:10 GMT Fri 30 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: 1030147 Prefixes after maximum aggregation (per Origin AS): 395680 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 508106 Number of IPv4 prefixes with a valid ROA: 615659 Number of IPv4 prefixes with an invalid ROA: 109 Number of IPv4 prefixes with no ROA: 414379 Total ASes present in the Internet Routing Table: 77842 Prefixes per ASN: 13.23 Origin-only ASes present in the Internet Routing Table: 66616 Origin ASes announcing only one prefix: 27220 Transit ASes present in the Internet Routing Table: 11226 Transit-only ASes present in the Internet Routing Table: 571 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: 48531 Number of 32-bit ASNs visible in the Routing Table: 39737 Prefixes from 32-bit ASNs in the Routing Table: 220931 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: 456 Number of addresses announced to Internet: 3105371136 Equivalent to 185 /8s, 24 /16s and 52 /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: 335006 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 280552 Total APNIC prefixes after maximum aggregation: 82059 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 266718 Unique aggregates announced from the APNIC address blocks: 107202 APNIC Region origin ASes present in the Internet Routing Table: 15032 APNIC Prefixes per ASN: 17.74 APNIC Region origin ASes announcing only one prefix: 4608 APNIC Region transit ASes present in the Internet Routing Table: 2015 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 52 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10592 Number of APNIC addresses announced to Internet: 753658112 Equivalent to 44 /8s, 235 /16s and 233 /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: 302740 Total ARIN prefixes after maximum aggregation: 135740 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 302353 Unique aggregates announced from the ARIN address blocks: 146334 ARIN Region origin ASes present in the Internet Routing Table: 19395 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: 1971 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: 5451 Number of ARIN addresses announced to Internet: 1343355392 Equivalent to 80 /8s, 17 /16s and 250 /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: 283270 Total RIPE prefixes after maximum aggregation: 140040 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 285419 Unique aggregates announced from the RIPE address blocks: 185143 RIPE Region origin ASes present in the Internet Routing Table: 29163 RIPE Prefixes per ASN: 9.79 RIPE Region origin ASes announcing only one prefix: 12094 RIPE Region transit ASes present in the Internet Routing Table: 4077 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: 12964 Number of RIPE addresses announced to Internet: 733783552 Equivalent to 43 /8s, 188 /16s and 166 /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: 126042 Total LACNIC prefixes after maximum aggregation: 30233 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 121901 Unique aggregates announced from the LACNIC address blocks: 49527 LACNIC Region origin ASes present in the Internet Routing Table: 11348 LACNIC Prefixes per ASN: 10.74 LACNIC Region origin ASes announcing only one prefix: 2699 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: 9351 Number of LACNIC addresses announced to Internet: 170865920 Equivalent to 10 /8s, 47 /16s and 53 /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: 36509 Total AfriNIC prefixes after maximum aggregation: 6939 AfriNIC Deaggregation factor: 5.26 Prefixes being announced from the AfriNIC address blocks: 53299 Unique aggregates announced from the AfriNIC address blocks: 19510 AfriNIC Region origin ASes present in the Internet Routing Table: 2017 AfriNIC Prefixes per ASN: 26.42 AfriNIC Region origin ASes announcing only one prefix: 743 AfriNIC Region transit ASes present in the Internet Routing Table: 390 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: 1379 Number of AfriNIC addresses announced to Internet: 103427328 Equivalent to 6 /8s, 42 /16s and 45 /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 13617 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 6020 833 571 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4718 544 339 BBIL-AP BHARTI Airtel Ltd., IN 18403 4406 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 3214 202 633 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 14103 38851 5524 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 3858 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3698 1321 71 SHAW - Shaw Communications, CA 174 3649 8766 850 COGENT-174 - Cogent Communications, LLC, 396982 3323 4866 497 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 7243 1711 149 UNI2-AS, ES 39891 4901 302 71 ALJAWWALSTC-AS, SA 20940 3929 3393 113 AKAMAI-ASN1, NL 9009 3903 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 1710 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 12627 3295 618 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 1257 371 22 INTEGRATEL PERU S.A.A., PE 22884 1056 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1013 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 1279 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 36914 572 82 3 KENET-AS, KE 328608 571 53 165 Africa-on-Cloud-AS, 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 14103 38851 5524 AMAZON-02 - Amazon.com, Inc., US 9808 13617 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12627 3295 618 UNINET, MX 12479 7243 1711 149 UNI2-AS, ES 7545 6020 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 4718 544 339 BBIL-AP BHARTI Airtel Ltd., IN 11492 4637 308 1020 CABLEONE - CABLE ONE, INC., US 18403 4406 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 13617 13497 CHINAMOBILE-CN China Mobile Communications Grou 8151 12627 12009 UNINET, MX 12479 7243 7094 UNI2-AS, ES 7545 6020 5449 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 4406 4382 FPT-AS-AP FPT Telecom Company, VN 9498 4718 4379 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 /15:2092 /16:13690 /17:8267 /18:13518 /19:24870 /20:45223 /21:52247 /22:113546 /23:106494 /24:647952 /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 6806 12627 UNINET, MX 12479 6171 7243 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 2817 3858 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2511 14103 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) ---------------------------------------------- 1:2502 2:1548 3:984 4:9 5:5095 6:185 7:6 8:1507 9:15 11:172 12:1223 13:616 14:2635 15:419 16:179 17:392 18:918 20:597 21:4 22:188 23:8180 24:2623 25:2 27:2826 29:19 31:3439 32:31 34:81 35:291 36:4646 37:4507 38:10379 39:1258 40:439 41:4527 42:1979 43:2942 44:414 45:19685 46:4933 47:400 48:38 49:2195 50:2057 51:598 52:1258 54:238 55:1125 56:11 57:316 58:2320 59:1341 60:1173 61:3118 62:3101 63:1769 64:6198 65:2100 66:6022 67:3250 68:1488 69:4203 70:1028 71:624 72:3096 74:2973 75:1509 76:596 77:2695 78:1927 79:1806 80:2308 81:2157 82:4025 83:1471 84:2028 85:3697 86:1102 87:2259 88:1341 89:4652 90:823 91:8418 92:2867 93:3011 94:4313 95:4559 96:1451 97:311 98:951 99:782 100:69 101:1549 102:4382 103:32375 104:5402 105:797 106:918 107:2835 108:1219 109:4200 110:2300 111:4065 112:3122 113:1931 114:2171 115:2309 116:2161 117:3375 118:2993 119:2078 120:2672 121:1522 122:2966 123:2307 124:1613 125:2959 126:125 128:1686 129:947 130:1585 131:2351 132:772 133:461 134:1621 135:543 136:1633 137:1549 138:2961 139:1622 140:1776 141:1567 142:2477 143:2163 144:1604 145:629 146:2204 147:2282 148:2788 149:2950 150:1315 151:2672 152:2302 153:962 154:9715 155:2291 156:4611 157:2256 158:1500 159:2755 160:3750 161:2000 162:4047 163:2341 164:1970 165:2643 166:1288 167:2216 168:3929 169:915 170:5485 171:1115 172:4587 173:3441 174:890 175:1339 176:3781 177:4734 178:4362 179:2287 180:2966 181:4388 182:3915 183:2827 184:2018 185:21735 186:5554 187:4849 188:4602 189:4467 190:9650 191:1525 192:11475 193:9506 194:7835 195:5642 196:3246 197:3234 198:6229 199:6092 200:8178 201:6379 202:10626 203:10655 204:4737 205:3781 206:4464 207:3961 208:4363 209:5467 210:4803 211:2688 212:4954 213:4037 214:1074 215:54 216:7146 217:3483 218:1627 219:419 220:2182 221:1314 222:933 223:3293 End of report