IPv4 R&E Routing Table Report 21:10 GMT Thu 26 Mar, 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: 1037105 Prefixes after maximum aggregation (per Origin AS): 398333 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 511296 Number of IPv4 prefixes with a valid ROA: 625641 Number of IPv4 prefixes with an invalid ROA: 97 Number of IPv4 prefixes with no ROA: 411367 Total ASes present in the Internet Routing Table: 78199 Prefixes per ASN: 13.26 Origin-only ASes present in the Internet Routing Table: 66911 Origin ASes announcing only one prefix: 27332 Transit ASes present in the Internet Routing Table: 11288 Transit-only ASes present in the Internet Routing Table: 588 Paths with bogon ASNs present in the IPv4 Routing Table: 7 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 68 Max AS path prepend of ASN (269326) 61 Prefixes from unregistered ASNs in the Routing Table: 1042 Number of instances of unregistered ASNs: 1072 Number of 32-bit ASNs allocated by the RIRs: 49124 Number of 32-bit ASNs visible in the Routing Table: 40212 Prefixes from 32-bit ASNs in the Routing Table: 225428 Number of bogon 32-bit ASNs visible in the Routing Table: 72 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 400 Number of addresses announced to Internet: 3106859520 Equivalent to 185 /8s, 46 /16s and 234 /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: 337964 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 281988 Total APNIC prefixes after maximum aggregation: 82404 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 269061 Unique aggregates announced from the APNIC address blocks: 107142 APNIC Region origin ASes present in the Internet Routing Table: 15148 APNIC Prefixes per ASN: 17.76 APNIC Region origin ASes announcing only one prefix: 4651 APNIC Region transit ASes present in the Internet Routing Table: 2050 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 52 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10700 Number of APNIC addresses announced to Internet: 752723968 Equivalent to 44 /8s, 221 /16s and 168 /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: 303565 Total ARIN prefixes after maximum aggregation: 135958 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 302879 Unique aggregates announced from the ARIN address blocks: 146574 ARIN Region origin ASes present in the Internet Routing Table: 19435 ARIN Prefixes per ASN: 15.58 ARIN Region origin ASes announcing only one prefix: 7101 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: 5534 Number of ARIN addresses announced to Internet: 1348210944 Equivalent to 80 /8s, 92 /16s and 17 /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, 393216-404380 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: 286621 Total RIPE prefixes after maximum aggregation: 141588 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 288777 Unique aggregates announced from the RIPE address blocks: 187662 RIPE Region origin ASes present in the Internet Routing Table: 29324 RIPE Prefixes per ASN: 9.85 RIPE Region origin ASes announcing only one prefix: 12147 RIPE Region transit ASes present in the Internet Routing Table: 4058 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: 13205 Number of RIPE addresses announced to Internet: 732392192 Equivalent to 43 /8s, 167 /16s and 107 /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: 127041 Total LACNIC prefixes after maximum aggregation: 30699 LACNIC Deaggregation factor: 4.14 Prefixes being announced from the LACNIC address blocks: 122749 Unique aggregates announced from the LACNIC address blocks: 50216 LACNIC Region origin ASes present in the Internet Routing Table: 11369 LACNIC Prefixes per ASN: 10.80 LACNIC Region origin ASes announcing only one prefix: 2702 LACNIC Region transit ASes present in the Internet Routing Table: 2602 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9392 Number of LACNIC addresses announced to Internet: 169846784 Equivalent to 10 /8s, 31 /16s and 168 /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: 36848 Total AfriNIC prefixes after maximum aggregation: 7008 AfriNIC Deaggregation factor: 5.26 Prefixes being announced from the AfriNIC address blocks: 53238 Unique aggregates announced from the AfriNIC address blocks: 19352 AfriNIC Region origin ASes present in the Internet Routing Table: 2017 AfriNIC Prefixes per ASN: 26.39 AfriNIC Region origin ASes announcing only one prefix: 731 AfriNIC Region transit ASes present in the Internet Routing Table: 388 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 62 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1381 Number of AfriNIC addresses announced to Internet: 103426816 Equivalent to 6 /8s, 42 /16s and 43 /24s AfriNIC AS Blocks 36864-37887, 327680-330751 & 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 13775 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 5938 829 508 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4876 548 317 BBIL-AP BHARTI Airtel Ltd., IN 18403 4544 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4053 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3674 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3475 886 176 CMNET-JIANGSU-AP China Mobile communicati 45899 3336 1868 97 VNPT-AS-VN VNPT Corp, VN 24560 3005 861 512 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2805 177 541 LCS-AS-AP LARUS Limited, HK 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 14564 41224 5614 AMAZON-02 - Amazon.com, Inc., US 22773 4778 3117 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4650 309 1024 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3720 1321 75 SHAW - Shaw Communications, CA 396982 3294 4856 487 GOOGLE-CLOUD-PLATFORM - Google LLC, US 174 3176 8760 821 COGENT-174 - Cogent Communications, LLC, 749 3140 54728 2391 DNIC-AS-00749 - United States Department 16625 2806 1233 2144 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2705 222 886 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 7189 1711 149 UNI2-AS, ES 39891 4971 306 72 ALJAWWALSTC-AS, SA 20940 3943 3389 111 AKAMAI-ASN1, NL 9009 3843 356 2251 M247, RO 12389 3151 2320 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2688 194 1972 CDNEXT, GB 34984 2455 365 570 TELLCOM-AS, TR 8452 1714 1852 14 TE-AS TE-AS, EG 203020 1632 248 807 HOSTROYALE, IN 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 12823 3294 606 UNINET, MX 10620 3453 458 1104 Telmex Colombia S.A., CO 13999 2460 506 344 Mega Cable, S.A. de C.V., MX 11830 1959 369 65 Instituto Costarricense de Electricidad y 11664 1451 278 33 Techtel LMDS Comunicaciones Interactivas 28573 1372 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1244 371 22 INTEGRATEL PERU S.A.A., PE 26615 1058 2393 95 TIM SA, BR 22884 1057 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 2045 648 34 RAYA-AS, EG 36992 1854 1531 336 ETISALAT-MISR, EG 24863 1282 389 16 LINKdotNET-AS, EG 36935 1247 524 47 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1116 1100 11 MOBINIL, EG 29571 1072 78 20 ORANGE-COTE-IVOIRE, CI 20011 587 154 220 NTT-DATA-Inc, ZA 15399 550 57 61 WANANCHI-, KE 36914 547 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 14564 41224 5614 AMAZON-02 - Amazon.com, Inc., US 9808 13775 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12823 3294 606 UNINET, MX 12479 7189 1711 149 UNI2-AS, ES 7545 5938 829 508 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4971 306 72 ALJAWWALSTC-AS, SA 9498 4876 548 317 BBIL-AP BHARTI Airtel Ltd., IN 22773 4778 3117 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4650 309 1024 CABLEONE - CABLE ONE, INC., US 18403 4544 347 25 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 13775 13655 CHINAMOBILE-CN China Mobile Communications Grou 8151 12823 12217 UNINET, MX 12479 7189 7040 UNI2-AS, ES 7545 5938 5430 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4971 4899 ALJAWWALSTC-AS, SA 9498 4876 4559 BBIL-AP BHARTI Airtel Ltd., IN 18403 4544 4519 FPT-AS-AP FPT Telecom Company, VN 22773 4778 4412 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4053 4024 VIETEL-AS-AP Viettel Group, VN 20940 3943 3832 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: 174 COGENT-174 - Cogent Communications, LLC, 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 /11:95 /12:297 /13:585 /14:1196 /15:2107 /16:13602 /17:8299 /18:13311 /19:25438 /20:45726 /21:52320 /22:113786 /23:107287 /24:652985 /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 6997 12823 UNINET, MX 12479 6131 7189 UNI2-AS, ES 39891 3655 4971 ALJAWWALSTC-AS, SA 11492 3511 4650 CABLEONE - CABLE ONE, INC., US 6327 3501 3720 SHAW - Shaw Communications, CA 22773 3048 4778 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2618 14564 AMAZON-02 - Amazon.com, Inc., US 30036 2316 2665 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2233 3453 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) ---------------------------------------------- 1:2480 2:1715 3:1001 4:5 5:5109 6:196 7:6 8:1501 9:38 11:172 12:1190 13:680 14:2667 15:459 16:169 17:421 18:918 20:604 21:4 22:188 23:8259 24:2853 25:2 27:2823 28:2 29:19 31:3394 32:36 34:87 35:290 36:4639 37:4463 38:9954 39:1275 40:410 41:4541 42:2205 43:3020 44:448 45:19817 46:4890 47:408 48:99 49:2199 50:2034 51:618 52:1307 54:277 55:1182 56:11 57:320 58:2331 59:1372 60:1173 61:3120 62:3126 63:1756 64:6253 65:2128 66:6024 67:3252 68:1499 69:4212 70:1047 71:616 72:3137 74:2998 75:1488 76:591 77:2897 78:1925 79:1794 80:2329 81:2201 82:4019 83:1439 84:2096 85:3808 86:1094 87:2307 88:1350 89:4700 90:785 91:8426 92:2841 93:3020 94:4343 95:4638 96:1451 97:315 98:943 99:808 100:68 101:1459 102:4479 103:32437 104:5335 105:820 106:924 107:2842 108:1231 109:4225 110:2286 111:4111 112:3136 113:1970 114:2263 115:2325 116:2175 117:3492 118:2994 119:2074 120:2693 121:1557 122:2988 123:2267 124:1656 125:2983 126:125 128:1697 129:971 130:1616 131:2463 132:810 133:463 134:1644 135:607 136:1589 137:1551 138:3173 139:1639 140:1765 141:1699 142:2522 143:2110 144:1703 145:638 146:2205 147:2180 148:2717 149:3078 150:1348 151:2716 152:2313 153:1055 154:9452 155:2305 156:4388 157:2287 158:1506 159:2814 160:3822 161:1952 162:4024 163:2453 164:2038 165:2636 166:1289 167:2258 168:3990 169:882 170:5534 171:1116 172:4565 173:3473 174:885 175:1365 176:3819 177:4815 178:4363 179:2360 180:3026 181:4470 182:4022 183:2837 184:2009 185:21823 186:5777 187:4946 188:4602 189:4530 190:9787 191:1577 192:11479 193:9583 194:7835 195:5798 196:3291 197:3233 198:6269 199:6088 200:8221 201:6406 202:10688 203:10658 204:4775 205:3771 206:4532 207:4013 208:4384 209:5488 210:4778 211:2684 212:4992 213:4114 214:1052 215:47 216:7259 217:3554 218:1699 219:419 220:2201 221:1310 222:930 223:3393 End of report