IPv4 R&E Routing Table Report 21:10 GMT Mon 27 Apr, 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: 1043226 Prefixes after maximum aggregation (per Origin AS): 400171 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 514608 Number of IPv4 prefixes with a valid ROA: 636214 Number of IPv4 prefixes with an invalid ROA: 92 Number of IPv4 prefixes with no ROA: 406911 Total ASes present in the Internet Routing Table: 78360 Prefixes per ASN: 13.31 Origin-only ASes present in the Internet Routing Table: 67062 Origin ASes announcing only one prefix: 27411 Transit ASes present in the Internet Routing Table: 11298 Transit-only ASes present in the Internet Routing Table: 589 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: 966 Number of instances of unregistered ASNs: 996 Number of 32-bit ASNs allocated by the RIRs: 49528 Number of 32-bit ASNs visible in the Routing Table: 40455 Prefixes from 32-bit ASNs in the Routing Table: 228041 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: 443 Number of addresses announced to Internet: 3103943936 Equivalent to 185 /8s, 2 /16s and 109 /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: 340193 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 282965 Total APNIC prefixes after maximum aggregation: 82628 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 269628 Unique aggregates announced from the APNIC address blocks: 107836 APNIC Region origin ASes present in the Internet Routing Table: 15167 APNIC Prefixes per ASN: 17.78 APNIC Region origin ASes announcing only one prefix: 4644 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: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10739 Number of APNIC addresses announced to Internet: 748854784 Equivalent to 44 /8s, 162 /16s and 158 /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: 304591 Total ARIN prefixes after maximum aggregation: 136296 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 303972 Unique aggregates announced from the ARIN address blocks: 147232 ARIN Region origin ASes present in the Internet Routing Table: 19428 ARIN Prefixes per ASN: 15.65 ARIN Region origin ASes announcing only one prefix: 7106 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: 5559 Number of ARIN addresses announced to Internet: 1348115712 Equivalent to 80 /8s, 90 /16s and 157 /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: 289158 Total RIPE prefixes after maximum aggregation: 142850 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 291898 Unique aggregates announced from the RIPE address blocks: 190099 RIPE Region origin ASes present in the Internet Routing Table: 29452 RIPE Prefixes per ASN: 9.91 RIPE Region origin ASes announcing only one prefix: 12214 RIPE Region transit ASes present in the Internet Routing Table: 4069 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: 13346 Number of RIPE addresses announced to Internet: 732537600 Equivalent to 43 /8s, 169 /16s and 163 /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: 128363 Total LACNIC prefixes after maximum aggregation: 30763 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 123150 Unique aggregates announced from the LACNIC address blocks: 50305 LACNIC Region origin ASes present in the Internet Routing Table: 11375 LACNIC Prefixes per ASN: 10.83 LACNIC Region origin ASes announcing only one prefix: 2711 LACNIC Region transit ASes present in the Internet Routing Table: 2611 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: 9423 Number of LACNIC addresses announced to Internet: 169931264 Equivalent to 10 /8s, 32 /16s and 242 /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: 37183 Total AfriNIC prefixes after maximum aggregation: 7040 AfriNIC Deaggregation factor: 5.28 Prefixes being announced from the AfriNIC address blocks: 54134 Unique aggregates announced from the AfriNIC address blocks: 18778 AfriNIC Region origin ASes present in the Internet Routing Table: 2020 AfriNIC Prefixes per ASN: 26.80 AfriNIC Region origin ASes announcing only one prefix: 736 AfriNIC Region transit ASes present in the Internet Routing Table: 397 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: 1388 Number of AfriNIC addresses announced to Internet: 104303104 Equivalent to 6 /8s, 55 /16s and 138 /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 13852 8761 121 CHINAMOBILE-CN China Mobile Communication 7545 5897 826 485 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4929 551 323 BBIL-AP BHARTI Airtel Ltd., IN 18403 4552 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4057 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3685 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3489 886 176 CMNET-JIANGSU-AP China Mobile communicati 45899 3359 1868 98 VNPT-AS-VN VNPT Corp, VN 24560 2942 825 620 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2941 185 508 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 14810 41292 5686 AMAZON-02 - Amazon.com, Inc., US 22773 4759 3115 362 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4655 309 1045 CABLEONE - CABLE ONE, INC., US 7155 3871 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3725 1305 75 SHAW - Shaw Communications, CA 174 3350 8765 823 COGENT-174 - Cogent Communications, LLC, 396982 3327 4860 501 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3139 54728 2390 DNIC-AS-00749 - United States Department 36352 2715 222 910 AS-COLOCROSSING - HostPapa, US 16625 2625 1198 2066 AKAMAI-AS - Akamai Technologies, Inc., 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 7168 1711 149 UNI2-AS, ES 39891 4943 305 72 ALJAWWALSTC-AS, SA 20940 3920 3389 111 AKAMAI-ASN1, NL 9009 3833 354 2258 M247, RO 12389 3147 2320 873 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2760 201 2035 CDNEXT, GB 34984 2452 365 575 TELLCOM-AS, TR 8452 1726 1852 14 TE-AS TE-AS, EG 203020 1668 252 833 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 12864 3309 628 UNINET, MX 10620 3429 450 1105 Telmex Colombia S.A., CO 13999 2434 506 343 Mega Cable, S.A. de C.V., MX 11830 1937 369 65 Instituto Costarricense de Electricidad y 11664 1446 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1373 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1229 371 22 INTEGRATEL PERU S.A.A., PE 26615 1071 2392 100 TIM SA, BR 22884 1064 70 363 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 2025 648 34 RAYA-AS, EG 36992 1859 1533 336 ETISALAT-MISR, EG 24863 1268 389 16 LINKdotNET-AS, EG 36935 1244 523 45 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1116 1100 11 MOBINIL, EG 29571 1071 78 19 ORANGE-COTE-IVOIRE, CI 20011 643 173 262 NTT-DATA-Inc, ZA 3741 555 724 322 NTT-DATA-Inc, ZA 15399 546 57 57 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 14810 41292 5686 AMAZON-02 - Amazon.com, Inc., US 9808 13852 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12864 3309 628 UNINET, MX 12479 7168 1711 149 UNI2-AS, ES 7545 5897 826 485 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4943 305 72 ALJAWWALSTC-AS, SA 9498 4929 551 323 BBIL-AP BHARTI Airtel Ltd., IN 22773 4759 3115 362 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4655 309 1045 CABLEONE - CABLE ONE, INC., US 18403 4552 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 13852 13731 CHINAMOBILE-CN China Mobile Communications Grou 8151 12864 12236 UNINET, MX 12479 7168 7019 UNI2-AS, ES 7545 5897 5412 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4943 4871 ALJAWWALSTC-AS, SA 9498 4929 4606 BBIL-AP BHARTI Airtel Ltd., IN 18403 4552 4527 FPT-AS-AP FPT Telecom Company, VN 22773 4759 4397 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4057 4029 VIETEL-AS-AP Viettel Group, VN 20940 3920 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 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887 - C 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 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 /10:39 /11:95 /12:296 /13:584 /14:1194 /15:2112 /16:13623 /17:8311 /18:13355 /19:25486 /20:45769 /21:52425 /22:113604 /23:107656 /24:658646 /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 7052 12864 UNINET, MX 12479 6109 7168 UNI2-AS, ES 39891 3628 4943 ALJAWWALSTC-AS, SA 11492 3520 4655 CABLEONE - CABLE ONE, INC., US 6327 3506 3725 SHAW - Shaw Communications, CA 22773 3039 4759 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2825 3871 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2655 14810 AMAZON-02 - Amazon.com, Inc., US 30036 2271 2615 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) ---------------------------------------------- 1:2489 2:1920 3:1008 4:5 5:5101 6:200 7:6 8:1494 9:43 11:172 12:1185 13:703 14:2696 15:460 16:204 17:428 18:922 20:603 21:4 22:188 23:8228 24:2781 25:2 27:2840 28:1 29:19 31:3458 32:36 34:86 35:284 36:4685 37:4447 38:10155 39:1289 40:433 41:4567 42:2179 43:3100 44:450 45:19711 46:4891 47:412 48:127 49:2230 50:2013 51:654 52:1322 54:290 55:1212 56:11 57:324 58:2340 59:1371 60:1174 61:3127 62:3132 63:1719 64:6349 65:2139 66:6132 67:3270 68:1499 69:4216 70:1055 71:622 72:3195 74:3035 75:1501 76:590 77:2930 78:2003 79:1790 80:2351 81:2241 82:4121 83:1452 84:2138 85:3841 86:1094 87:2416 88:1334 89:4782 90:804 91:8443 92:2812 93:3030 94:4397 95:4717 96:1453 97:316 98:942 99:815 100:70 101:1459 102:4502 103:32460 104:5366 105:863 106:899 107:2890 108:1248 109:4264 110:2277 111:4124 112:3174 113:1967 114:2279 115:2333 116:2147 117:3524 118:3000 119:2056 120:2706 121:1553 122:2996 123:2300 124:1653 125:2981 126:126 128:1603 129:971 130:1655 131:2492 132:865 133:486 134:1674 135:604 136:1588 137:1547 138:3336 139:1626 140:1757 141:1726 142:2534 143:2117 144:1765 145:641 146:2205 147:2223 148:2796 149:3152 150:1370 151:2817 152:2325 153:1399 154:9990 155:2307 156:4597 157:2323 158:1567 159:2864 160:3823 161:1968 162:4047 163:2532 164:2297 165:2667 166:1254 167:2309 168:4016 169:867 170:5577 171:1131 172:4778 173:3457 174:879 175:1356 176:3886 177:4866 178:4375 179:2322 180:3067 181:4555 182:4021 183:2824 184:2010 185:21893 186:5865 187:4993 188:4540 189:4542 190:9817 191:1673 192:11487 193:9648 194:7881 195:5825 196:3402 197:3253 198:6287 199:6067 200:8252 201:6399 202:10700 203:10658 204:4801 205:3735 206:4650 207:4017 208:4394 209:5473 210:4767 211:2682 212:5105 213:4110 214:1040 215:47 216:7307 217:3575 218:1702 219:413 220:2193 221:1311 222:939 223:3424 End of report