IPv4 R&E Routing Table Report 21:10 GMT Sun 10 May, 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: 1044910 Prefixes after maximum aggregation (per Origin AS): 401371 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 516891 Number of IPv4 prefixes with a valid ROA: 642012 Number of IPv4 prefixes with an invalid ROA: 118 Number of IPv4 prefixes with no ROA: 402780 Total ASes present in the Internet Routing Table: 78447 Prefixes per ASN: 13.32 Origin-only ASes present in the Internet Routing Table: 67155 Origin ASes announcing only one prefix: 27424 Transit ASes present in the Internet Routing Table: 11292 Transit-only ASes present in the Internet Routing Table: 591 Paths with bogon ASNs present in the IPv4 Routing Table: 8 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: 976 Number of instances of unregistered ASNs: 1006 Number of 32-bit ASNs allocated by the RIRs: 49723 Number of 32-bit ASNs visible in the Routing Table: 40581 Prefixes from 32-bit ASNs in the Routing Table: 229292 Number of bogon 32-bit ASNs visible in the Routing Table: 74 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 428 Number of addresses announced to Internet: 3102982400 Equivalent to 184 /8s, 243 /16s and 193 /24s Percentage of available address space announced: 83.8 Percentage of allocated address space announced: 83.8 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: 341450 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 283696 Total APNIC prefixes after maximum aggregation: 82965 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 270132 Unique aggregates announced from the APNIC address blocks: 107931 APNIC Region origin ASes present in the Internet Routing Table: 15191 APNIC Prefixes per ASN: 17.78 APNIC Region origin ASes announcing only one prefix: 4642 APNIC Region transit ASes present in the Internet Routing Table: 2058 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10773 Number of APNIC addresses announced to Internet: 747657472 Equivalent to 44 /8s, 144 /16s and 89 /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: 303457 Total ARIN prefixes after maximum aggregation: 136570 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 302808 Unique aggregates announced from the ARIN address blocks: 147638 ARIN Region origin ASes present in the Internet Routing Table: 19442 ARIN Prefixes per ASN: 15.57 ARIN Region origin ASes announcing only one prefix: 7115 ARIN Region transit ASes present in the Internet Routing Table: 1974 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: 5575 Number of ARIN addresses announced to Internet: 1347695360 Equivalent to 80 /8s, 84 /16s and 51 /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: 290545 Total RIPE prefixes after maximum aggregation: 143337 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 293677 Unique aggregates announced from the RIPE address blocks: 191378 RIPE Region origin ASes present in the Internet Routing Table: 29473 RIPE Prefixes per ASN: 9.96 RIPE Region origin ASes announcing only one prefix: 12211 RIPE Region transit ASes present in the Internet Routing Table: 4068 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: 13403 Number of RIPE addresses announced to Internet: 733306624 Equivalent to 43 /8s, 181 /16s and 95 /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: 128950 Total LACNIC prefixes after maximum aggregation: 30871 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 123335 Unique aggregates announced from the LACNIC address blocks: 50298 LACNIC Region origin ASes present in the Internet Routing Table: 11397 LACNIC Prefixes per ASN: 10.82 LACNIC Region origin ASes announcing only one prefix: 2725 LACNIC Region transit ASes present in the Internet Routing Table: 2602 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: 9441 Number of LACNIC addresses announced to Internet: 169750528 Equivalent to 10 /8s, 30 /16s and 48 /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: 37286 Total AfriNIC prefixes after maximum aggregation: 7032 AfriNIC Deaggregation factor: 5.30 Prefixes being announced from the AfriNIC address blocks: 54529 Unique aggregates announced from the AfriNIC address blocks: 19275 AfriNIC Region origin ASes present in the Internet Routing Table: 2024 AfriNIC Prefixes per ASN: 26.94 AfriNIC Region origin ASes announcing only one prefix: 731 AfriNIC Region transit ASes present in the Internet Routing Table: 392 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 62 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1389 Number of AfriNIC addresses announced to Internet: 104375808 Equivalent to 6 /8s, 56 /16s and 166 /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 13868 8761 121 CHINAMOBILE-CN China Mobile Communication 7545 5883 826 482 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4935 551 321 BBIL-AP BHARTI Airtel Ltd., IN 18403 4561 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4053 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3691 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3535 886 176 CMNET-JIANGSU-AP China Mobile communicati 17561 3463 218 599 LCS-AS-AP LARUS Limited, HK 45899 3359 1868 98 VNPT-AS-VN VNPT Corp, VN 24560 2832 785 702 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 14933 41296 5705 AMAZON-02 - Amazon.com, Inc., US 22773 4780 3115 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4637 308 1056 CABLEONE - CABLE ONE, INC., US 7155 3870 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3718 1305 75 SHAW - Shaw Communications, CA 396982 3336 4865 505 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3138 54728 2389 DNIC-AS-00749 - United States Department 36352 2913 222 912 AS-COLOCROSSING - HostPapa, US 7029 2649 2560 918 WINDSTREAM - Windstream Communications LL 30036 2612 359 455 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom C 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 7187 1711 149 UNI2-AS, ES 39891 4975 307 72 ALJAWWALSTC-AS, SA 20940 3919 3389 110 AKAMAI-ASN1, NL 9009 3898 358 2307 M247, RO 12389 3146 2321 874 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2769 202 2041 CDNEXT, GB 34984 2491 367 584 TELLCOM-AS, TR 8452 1725 1852 14 TE-AS TE-AS, EG 203020 1655 252 831 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 12768 3266 636 UNINET, MX 10620 3429 450 1105 Telmex Colombia S.A., CO 13999 2416 506 350 Mega Cable, S.A. de C.V., MX 11830 1937 369 65 Instituto Costarricense de Electricidad y 11664 1450 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1375 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1226 379 23 INTEGRATEL PERU S.A.A., PE 22884 1073 70 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1073 2392 100 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 2027 649 36 RAYA-AS, EG 36992 1860 1533 334 ETISALAT-MISR, EG 24863 1271 389 16 LINKdotNET-AS, EG 36935 1251 521 43 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1116 1100 11 MOBINIL, EG 29571 1070 70 18 ORANGE-COTE-IVOIRE, CI 20011 643 173 262 NTT-DATA-Inc, ZA 328608 572 53 155 Africa-on-Cloud-AS, ZA 3741 553 724 322 NTT-DATA-Inc, 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 14933 41296 5705 AMAZON-02 - Amazon.com, Inc., US 9808 13868 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12768 3266 636 UNINET, MX 12479 7187 1711 149 UNI2-AS, ES 7545 5883 826 482 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 307 72 ALJAWWALSTC-AS, SA 9498 4935 551 321 BBIL-AP BHARTI Airtel Ltd., IN 22773 4780 3115 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4637 308 1056 CABLEONE - CABLE ONE, INC., US 18403 4561 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 13868 13747 CHINAMOBILE-CN China Mobile Communications Grou 8151 12768 12132 UNINET, MX 12479 7187 7038 UNI2-AS, ES 7545 5883 5401 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 4903 ALJAWWALSTC-AS, SA 9498 4935 4614 BBIL-AP BHARTI Airtel Ltd., IN 18403 4561 4536 FPT-AS-AP FPT Telecom Company, VN 22773 4780 4417 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4053 4025 VIETEL-AS-AP Viettel Group, VN 20940 3919 3809 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 395729 UNALLOCATED 8.28.58.0/24 32787 PROLEXIC-TECHNOLOGIES-D 395729 UNALLOCATED 8.28.60.0/24 32787 PROLEXIC-TECHNOLOGIES-D 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 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 23.138.188.0/24 Origin: 401371 DEEP-TO-ONE-INC - Deep To One Inc, ZZ 23.138.188.0/24 Transit: 154309 INTELLIGENT1-AS-AP Intelligent Cloud Lim 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 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 /10:39 /11:95 /12:297 /13:584 /14:1192 /15:2111 /16:13608 /17:8308 /18:13361 /19:25485 /20:45791 /21:52395 /22:113651 /23:108006 /24:659956 /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 6975 12768 UNINET, MX 12479 6124 7187 UNI2-AS, ES 39891 3660 4975 ALJAWWALSTC-AS, SA 11492 3505 4637 CABLEONE - CABLE ONE, INC., US 6327 3499 3718 SHAW - Shaw Communications, CA 22773 3059 4780 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2825 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2689 14933 AMAZON-02 - Amazon.com, Inc., US 30036 2265 2612 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2233 3429 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) ---------------------------------------------- 1:2490 2:2051 3:1003 4:5 5:5079 6:200 7:6 8:1469 9:43 11:172 12:1171 13:705 14:2707 15:464 16:208 17:443 18:921 20:608 21:4 22:188 23:8366 24:2776 25:2 27:2816 28:1 29:19 31:3535 32:36 34:86 35:284 36:4737 37:4442 38:9635 39:1294 40:438 41:4569 42:2172 43:3135 44:449 45:19778 46:4898 47:413 48:127 49:2233 50:2007 51:691 52:1316 54:282 55:1017 56:11 57:324 58:2342 59:1372 60:1175 61:3151 62:3127 63:1691 64:6389 65:2142 66:6123 67:3271 68:1504 69:4212 70:1054 71:616 72:3177 74:3068 75:1501 76:596 77:2946 78:2034 79:1794 80:2353 81:2244 82:4173 83:1459 84:2158 85:3818 86:1091 87:2517 88:1335 89:4775 90:812 91:8475 92:2800 93:3044 94:4409 95:4748 96:1453 97:311 98:945 99:831 100:70 101:1462 102:4529 103:32508 104:5373 105:856 106:900 107:2939 108:1270 109:4257 110:2282 111:4129 112:3177 113:1976 114:2283 115:2328 116:2141 117:3492 118:3046 119:2056 120:2713 121:1556 122:3000 123:2311 124:1656 125:2987 126:126 128:1605 129:977 130:1663 131:2489 132:891 133:486 134:1689 135:606 136:1479 137:1563 138:3395 139:1627 140:1773 141:1745 142:2566 143:2052 144:1771 145:638 146:2193 147:2261 148:2804 149:3113 150:1368 151:2912 152:2338 153:1622 154:9541 155:2297 156:5010 157:2338 158:1578 159:2873 160:3829 161:1966 162:4073 163:2562 164:2422 165:2668 166:1272 167:2311 168:4039 169:870 170:5621 171:1142 172:4805 173:3464 174:889 175:1354 176:3948 177:4841 178:4416 179:2341 180:3052 181:4579 182:4034 183:2837 184:2005 185:21909 186:6117 187:5009 188:4579 189:4540 190:9809 191:1683 192:11528 193:9640 194:7883 195:5829 196:3396 197:3237 198:6287 199:6080 200:8276 201:6399 202:10712 203:10681 204:4792 205:3745 206:4461 207:3981 208:4365 209:5477 210:4768 211:2689 212:5087 213:4113 214:1039 215:47 216:7296 217:3613 218:1709 219:413 220:2190 221:1318 222:937 223:3434 End of report