IPv4 R&E Routing Table Report 21:35 GMT Fri 20 Feb, 2026 IPv4 BGP Table (Global) as seen at USP. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/USP/ Analysis Summary ---------------- BGP routing table entries examined: 1034083 Prefixes after maximum aggregation (per Origin AS): 397211 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 509835 Number of IPv4 prefixes with a valid ROA: 620751 Number of IPv4 prefixes with an invalid ROA: 147 Number of IPv4 prefixes with no ROA: 413185 Total ASes present in the Internet Routing Table: 78040 Prefixes per ASN: 13.25 Origin-only ASes present in the Internet Routing Table: 66756 Origin ASes announcing only one prefix: 27280 Transit ASes present in the Internet Routing Table: 11284 Transit-only ASes present in the Internet Routing Table: 580 Paths with bogon ASNs present in the IPv4 Routing Table: 290 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 69 Max AS path prepend of ASN (269326) 61 Prefixes from unregistered ASNs in the Routing Table: 1211 Number of instances of unregistered ASNs: 1244 Number of 32-bit ASNs allocated by the RIRs: 48780 Number of 32-bit ASNs visible in the Routing Table: 39905 Prefixes from 32-bit ASNs in the Routing Table: 222658 Number of bogon 32-bit ASNs visible in the Routing Table: 92 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 444 Number of addresses announced to Internet: 3111678464 Equivalent to 185 /8s, 120 /16s and 114 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 336305 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 280712 Total APNIC prefixes after maximum aggregation: 81806 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 267519 Unique aggregates announced from the APNIC address blocks: 107130 APNIC Region origin ASes present in the Internet Routing Table: 15041 APNIC Prefixes per ASN: 17.79 APNIC Region origin ASes announcing only one prefix: 4614 APNIC Region transit ASes present in the Internet Routing Table: 2026 Average APNIC Region AS path length visible: 5.2 Max APNIC Region AS path length visible: 38 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10612 Number of APNIC addresses announced to Internet: 752112128 Equivalent to 44 /8s, 212 /16s and 82 /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: 304188 Total ARIN prefixes after maximum aggregation: 136652 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 303103 Unique aggregates announced from the ARIN address blocks: 146893 ARIN Region origin ASes present in the Internet Routing Table: 19401 ARIN Prefixes per ASN: 15.62 ARIN Region origin ASes announcing only one prefix: 7083 ARIN Region transit ASes present in the Internet Routing Table: 1992 Average ARIN Region AS path length visible: 5.0 Max ARIN Region AS path length visible: 36 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5480 Number of ARIN addresses announced to Internet: 1351936512 Equivalent to 80 /8s, 148 /16s and 234 /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: 284923 Total RIPE prefixes after maximum aggregation: 140695 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 287490 Unique aggregates announced from the RIPE address blocks: 186215 RIPE Region origin ASes present in the Internet Routing Table: 29266 RIPE Prefixes per ASN: 9.82 RIPE Region origin ASes announcing only one prefix: 12155 RIPE Region transit ASes present in the Internet Routing Table: 4067 Average RIPE Region AS path length visible: 5.4 Max RIPE Region AS path length visible: 38 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13074 Number of RIPE addresses announced to Internet: 733106432 Equivalent to 43 /8s, 178 /16s and 81 /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: 126396 Total LACNIC prefixes after maximum aggregation: 30314 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 122131 Unique aggregates announced from the LACNIC address blocks: 49656 LACNIC Region origin ASes present in the Internet Routing Table: 11353 LACNIC Prefixes per ASN: 10.76 LACNIC Region origin ASes announcing only one prefix: 2684 LACNIC Region transit ASes present in the Internet Routing Table: 2590 Average LACNIC Region AS path length visible: 6.3 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9356 Number of LACNIC addresses announced to Internet: 170906368 Equivalent to 10 /8s, 47 /16s and 211 /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: 36653 Total AfriNIC prefixes after maximum aggregation: 6955 AfriNIC Deaggregation factor: 5.27 Prefixes being announced from the AfriNIC address blocks: 53395 Unique aggregates announced from the AfriNIC address blocks: 19554 AfriNIC Region origin ASes present in the Internet Routing Table: 2019 AfriNIC Prefixes per ASN: 26.45 AfriNIC Region origin ASes announcing only one prefix: 744 AfriNIC Region transit ASes present in the Internet Routing Table: 393 Average AfriNIC Region AS path length visible: 6.0 Max AfriNIC Region AS path length visible: 53 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1383 Number of AfriNIC addresses announced to Internet: 103384064 Equivalent to 6 /8s, 41 /16s and 132 /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 13725 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 5996 832 548 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4786 546 335 BBIL-AP BHARTI Airtel Ltd., IN 18403 4518 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4070 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3682 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3469 887 177 CMNET-JIANGSU-AP China Mobile communicati 45899 3319 1868 97 VNPT-AS-VN VNPT Corp, VN 17561 3151 198 588 LCS-AS-AP LARUS Limited, HK 24560 2981 864 503 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Complete listing at https://bgp.nsrc.org/REN/USP/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14338 41158 5589 AMAZON-02 - Amazon.com, Inc., US 22773 4783 3114 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4636 308 1022 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 174 3712 8767 855 COGENT-174 - Cogent Communications, LLC, 6327 3698 1321 71 SHAW - Shaw Communications, CA 396982 3323 4856 492 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3142 54728 2393 DNIC-AS-00749 - United States Department 16625 2906 1265 2170 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2695 221 892 AS-COLOCROSSING - HostPapa, US Complete listing at https://bgp.nsrc.org/REN/USP/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7240 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 20940 3935 3393 114 AKAMAI-ASN1, NL 9009 3800 354 2227 M247, RO 12389 3144 2317 870 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2631 190 1927 CDNEXT, GB 34984 2443 364 574 TELLCOM-AS, TR 8452 1678 1852 16 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1601 243 779 HOSTROYALE, IN Complete listing at https://bgp.nsrc.org/REN/USP/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12694 3308 604 UNINET, MX 10620 3449 457 1104 Telmex Colombia S.A., CO 13999 2465 506 349 Mega Cable, S.A. de C.V., MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 11664 1415 278 33 Techtel LMDS Comunicaciones Interactivas 28573 1375 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1254 371 22 INTEGRATEL PERU S.A.A., PE 22884 1058 67 360 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1055 2475 94 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/USP/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1984 648 34 RAYA-AS, EG 36992 1845 1532 339 ETISALAT-MISR, EG 24863 1273 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1199 523 46 Vodafone-, EG 37069 1115 1100 11 MOBINIL, EG 29571 1073 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 328608 567 51 166 Africa-on-Cloud-AS, ZA 36914 559 82 3 KENET-AS, KE Complete listing at https://bgp.nsrc.org/REN/USP/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14338 41158 5589 AMAZON-02 - Amazon.com, Inc., US 9808 13725 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12694 3308 604 UNINET, MX 12479 7240 1711 149 UNI2-AS, ES 7545 5996 832 548 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 9498 4786 546 335 BBIL-AP BHARTI Airtel Ltd., IN 22773 4783 3114 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4636 308 1022 CABLEONE - CABLE ONE, INC., US 18403 4518 347 24 FPT-AS-AP FPT Telecom Company, VN Complete listing at https://bgp.nsrc.org/REN/USP/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13725 13605 CHINAMOBILE-CN China Mobile Communications Grou 8151 12694 12090 UNINET, MX 12479 7240 7091 UNI2-AS, ES 7545 5996 5448 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 18403 4518 4494 FPT-AS-AP FPT Telecom Company, VN 9498 4786 4451 BBIL-AP BHARTI Airtel Ltd., IN 22773 4783 4419 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4070 4041 VIETEL-AS-AP Viettel Group, VN 20940 3935 3821 AKAMAI-ASN1, NL Complete listing at https://bgp.nsrc.org/REN/USP/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 13450 UNALLOCATED 8.29.117.0/24 55002 DEFENSE-NET - F5, Inc., 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/USP/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/USP/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 /13:583 /14:1202 /15:2110 /16:13679 /17:8276 /18:13570 /19:25456 /20:45334 /21:52351 /22:113601 /23:107070 /24:650387 /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 6861 12694 UNINET, MX 12479 6168 7240 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3497 4636 CABLEONE - CABLE ONE, INC., US 6327 3479 3698 SHAW - Shaw Communications, CA 22773 3055 4783 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2602 14338 AMAZON-02 - Amazon.com, Inc., US 30036 2310 2655 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2229 3449 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/USP/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2507 2:1576 3:982 4:9 5:5139 6:191 7:6 8:1507 9:26 11:172 12:1224 13:641 14:2654 15:454 16:174 17:399 18:918 20:599 21:4 22:188 23:8210 24:2630 25:2 27:2838 29:19 31:3455 32:31 34:81 35:290 36:4634 37:4452 38:10433 39:1267 40:443 41:4542 42:2001 43:2967 44:429 45:19848 46:4935 47:404 48:38 49:2183 50:2075 51:599 52:1277 54:260 55:1099 56:11 57:316 58:2338 59:1348 60:1174 61:3119 62:3128 63:1769 64:6219 65:2115 66:6038 67:3256 68:1491 69:4228 70:1037 71:620 72:3092 74:2953 75:1503 76:587 77:2824 78:1915 79:1791 80:2339 81:2216 82:4010 83:1460 84:2049 85:3813 86:1105 87:2270 88:1341 89:4702 90:810 91:8437 92:2840 93:3021 94:4317 95:4578 96:1449 97:313 98:951 99:790 100:69 101:1336 102:4424 103:32336 104:5516 105:793 106:923 107:2847 108:1214 109:4234 110:2289 111:4101 112:3149 113:1980 114:2174 115:2300 116:2165 117:3458 118:3034 119:2068 120:2680 121:1523 122:2966 123:2348 124:1622 125:2972 126:125 128:1697 129:942 130:1601 131:2352 132:781 133:461 134:1642 135:564 136:1623 137:1541 138:3100 139:1632 140:1777 141:1585 142:2486 143:2180 144:1704 145:628 146:2204 147:2204 148:2791 149:2997 150:1319 151:2686 152:2292 153:995 154:9642 155:2291 156:4597 157:2262 158:1497 159:2766 160:3738 161:1964 162:4024 163:2395 164:2020 165:2620 166:1273 167:2236 168:3950 169:891 170:5497 171:1121 172:4587 173:3444 174:892 175:1356 176:3804 177:4711 178:4359 179:2296 180:3010 181:4401 182:3965 183:2849 184:2007 185:21785 186:5622 187:4875 188:4554 189:4473 190:9731 191:1539 192:11460 193:9594 194:7833 195:5694 196:3277 197:3196 198:6253 199:6131 200:8198 201:6399 202:10631 203:10646 204:4749 205:3788 206:4504 207:3992 208:4363 209:5463 210:4789 211:2681 212:4985 213:4098 214:1072 215:54 216:7204 217:3523 218:1678 219:419 220:2194 221:1318 222:931 223:3301 End of report