IPv4 R&E Routing Table Report 21:10 GMT Fri 13 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: 1036362 Prefixes after maximum aggregation (per Origin AS): 398472 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 511630 Number of IPv4 prefixes with a valid ROA: 624002 Number of IPv4 prefixes with an invalid ROA: 104 Number of IPv4 prefixes with no ROA: 412256 Total ASes present in the Internet Routing Table: 78104 Prefixes per ASN: 13.27 Origin-only ASes present in the Internet Routing Table: 66846 Origin ASes announcing only one prefix: 27274 Transit ASes present in the Internet Routing Table: 11258 Transit-only ASes present in the Internet Routing Table: 592 Paths with bogon ASNs present in the IPv4 Routing Table: 9 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: 1074 Number of instances of unregistered ASNs: 1104 Number of 32-bit ASNs allocated by the RIRs: 48926 Number of 32-bit ASNs visible in the Routing Table: 40096 Prefixes from 32-bit ASNs in the Routing Table: 224196 Number of bogon 32-bit ASNs visible in the Routing Table: 76 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 421 Number of addresses announced to Internet: 3107993856 Equivalent to 185 /8s, 64 /16s and 57 /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: 337596 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 280842 Total APNIC prefixes after maximum aggregation: 81899 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 268020 Unique aggregates announced from the APNIC address blocks: 107242 APNIC Region origin ASes present in the Internet Routing Table: 15129 APNIC Prefixes per ASN: 17.72 APNIC Region origin ASes announcing only one prefix: 4642 APNIC Region transit ASes present in the Internet Routing Table: 2037 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: 10680 Number of APNIC addresses announced to Internet: 751733504 Equivalent to 44 /8s, 206 /16s and 139 /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: 304934 Total ARIN prefixes after maximum aggregation: 137295 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 303579 Unique aggregates announced from the ARIN address blocks: 147142 ARIN Region origin ASes present in the Internet Routing Table: 19393 ARIN Prefixes per ASN: 15.65 ARIN Region origin ASes announcing only one prefix: 7068 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: 5506 Number of ARIN addresses announced to Internet: 1348860416 Equivalent to 80 /8s, 101 /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: 285482 Total RIPE prefixes after maximum aggregation: 140996 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 288185 Unique aggregates announced from the RIPE address blocks: 187259 RIPE Region origin ASes present in the Internet Routing Table: 29297 RIPE Prefixes per ASN: 9.84 RIPE Region origin ASes announcing only one prefix: 12148 RIPE Region transit ASes present in the Internet Routing Table: 4057 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 37 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13163 Number of RIPE addresses announced to Internet: 733424640 Equivalent to 43 /8s, 183 /16s and 44 /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: 127171 Total LACNIC prefixes after maximum aggregation: 30640 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 122905 Unique aggregates announced from the LACNIC address blocks: 50248 LACNIC Region origin ASes present in the Internet Routing Table: 11353 LACNIC Prefixes per ASN: 10.83 LACNIC Region origin ASes announcing only one prefix: 2682 LACNIC Region transit ASes present in the Internet Routing Table: 2582 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: 9367 Number of LACNIC addresses announced to Internet: 170352640 Equivalent to 10 /8s, 39 /16s and 96 /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: 36859 Total AfriNIC prefixes after maximum aggregation: 6956 AfriNIC Deaggregation factor: 5.30 Prefixes being announced from the AfriNIC address blocks: 53251 Unique aggregates announced from the AfriNIC address blocks: 19366 AfriNIC Region origin ASes present in the Internet Routing Table: 2015 AfriNIC Prefixes per ASN: 26.43 AfriNIC Region origin ASes announcing only one prefix: 734 AfriNIC Region transit ASes present in the Internet Routing Table: 394 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 62 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1380 Number of AfriNIC addresses announced to Internet: 103422208 Equivalent to 6 /8s, 42 /16s and 25 /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 13730 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 5974 830 524 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4845 548 319 BBIL-AP BHARTI Airtel Ltd., IN 18403 4553 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4021 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3672 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3464 886 176 CMNET-JIANGSU-AP China Mobile communicati 45899 3328 1868 97 VNPT-AS-VN VNPT Corp, VN 24560 3003 865 512 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2817 177 544 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 14460 41234 5561 AMAZON-02 - Amazon.com, Inc., US 22773 4781 3117 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4646 308 1021 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3707 1321 75 SHAW - Shaw Communications, CA 396982 3290 4856 485 GOOGLE-CLOUD-PLATFORM - Google LLC, US 174 3195 8764 845 COGENT-174 - Cogent Communications, LLC, 749 3141 54728 2392 DNIC-AS-00749 - United States Department 16625 2832 1242 2148 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2696 221 897 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 7205 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 20940 3948 3393 114 AKAMAI-ASN1, NL 9009 3830 355 2249 M247, RO 12389 3146 2320 870 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2669 193 1956 CDNEXT, GB 34984 2463 366 569 TELLCOM-AS, TR 8452 1697 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1604 243 787 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 12807 3302 595 UNINET, MX 10620 3452 457 1103 Telmex Colombia S.A., CO 13999 2455 506 346 Mega Cable, S.A. de C.V., MX 11830 1956 369 65 Instituto Costarricense de Electricidad y 11664 1453 278 33 Techtel LMDS Comunicaciones Interactivas 28573 1371 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1234 371 22 INTEGRATEL PERU S.A.A., PE 26615 1057 2475 94 TIM SA, BR 22884 1055 66 357 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 2044 648 34 RAYA-AS, EG 36992 1845 1531 336 ETISALAT-MISR, EG 24863 1286 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1228 520 43 Vodafone-, EG 37069 1108 1100 11 MOBINIL, EG 29571 1072 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 36914 551 82 3 KENET-AS, KE 15399 547 57 58 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 14460 41234 5561 AMAZON-02 - Amazon.com, Inc., US 9808 13730 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12807 3302 595 UNINET, MX 12479 7205 1711 149 UNI2-AS, ES 7545 5974 830 524 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 9498 4845 548 319 BBIL-AP BHARTI Airtel Ltd., IN 22773 4781 3117 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4646 308 1021 CABLEONE - CABLE ONE, INC., US 18403 4553 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 13730 13610 CHINAMOBILE-CN China Mobile Communications Grou 8151 12807 12212 UNINET, MX 12479 7205 7056 UNI2-AS, ES 7545 5974 5450 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 18403 4553 4528 FPT-AS-AP FPT Telecom Company, VN 9498 4845 4526 BBIL-AP BHARTI Airtel Ltd., IN 22773 4781 4413 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4021 3992 VIETEL-AS-AP Viettel Group, VN 20940 3948 3834 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 402287 UNALLOCATED 8.12.64.0/24 3356 LEVEL3 - Level 3 Parent 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 397665 UNALLOCATED 12.24.28.0/24 7018 ATT-INTERNET4 - AT&T En 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 /12:298 /13:584 /14:1195 /15:2098 /16:13614 /17:8296 /18:13309 /19:25424 /20:45739 /21:52345 /22:113782 /23:107371 /24:652141 /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 6970 12807 UNINET, MX 12479 6142 7205 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3507 4646 CABLEONE - CABLE ONE, INC., US 6327 3488 3707 SHAW - Shaw Communications, CA 22773 3049 4781 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2587 14460 AMAZON-02 - Amazon.com, Inc., US 30036 2316 2664 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2232 3452 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) ---------------------------------------------- 1:2486 2:1626 3:994 4:5 5:5116 6:196 7:6 8:1501 9:29 11:172 12:1194 13:644 14:2666 15:459 16:167 17:420 18:915 20:603 21:4 22:188 23:8243 24:2836 25:2 27:2832 29:19 31:3410 32:30 34:87 35:292 36:4617 37:4459 38:9945 39:1267 40:419 41:4538 42:2077 43:2998 44:443 45:19898 46:4918 47:408 48:89 49:2187 50:2074 51:602 52:1307 54:279 55:1123 56:11 57:321 58:2339 59:1353 60:1174 61:3108 62:3121 63:1762 64:6260 65:2112 66:6011 67:3261 68:1499 69:4214 70:1040 71:613 72:3113 74:2991 75:1494 76:587 77:2838 78:1911 79:1791 80:2339 81:2213 82:4024 83:1444 84:2049 85:3812 86:1103 87:2283 88:1353 89:4711 90:797 91:8440 92:2838 93:3015 94:4315 95:4632 96:1444 97:313 98:948 99:800 100:68 101:1444 102:4474 103:32548 104:5482 105:814 106:924 107:2859 108:1222 109:4220 110:2288 111:4065 112:3157 113:1977 114:2180 115:2322 116:2171 117:3420 118:3002 119:2057 120:2686 121:1521 122:2988 123:2270 124:1619 125:2977 126:125 128:1700 129:969 130:1609 131:2487 132:804 133:463 134:1645 135:586 136:1602 137:1555 138:3166 139:1647 140:1790 141:1590 142:2559 143:2143 144:1732 145:630 146:2208 147:2161 148:2736 149:3056 150:1335 151:2692 152:2255 153:1024 154:9508 155:2307 156:4374 157:2275 158:1501 159:2772 160:3833 161:1948 162:4025 163:2399 164:2036 165:2626 166:1296 167:2251 168:3996 169:898 170:5552 171:1105 172:4625 173:3468 174:883 175:1356 176:3830 177:4919 178:4329 179:2294 180:3007 181:4445 182:4020 183:2825 184:2016 185:21813 186:5716 187:5017 188:4556 189:4506 190:9739 191:1597 192:11518 193:9597 194:7848 195:5730 196:3318 197:3232 198:6276 199:6112 200:8221 201:6406 202:10715 203:10641 204:4754 205:3783 206:4542 207:4025 208:4379 209:5441 210:4783 211:2683 212:5005 213:4114 214:1049 215:46 216:7267 217:3553 218:1678 219:418 220:2157 221:1318 222:936 223:3322 End of report