IPv4 R&E Routing Table Report 21:35 GMT Thu 09 Apr, 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: 1039240 Prefixes after maximum aggregation (per Origin AS): 399050 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 513126 Number of IPv4 prefixes with a valid ROA: 629599 Number of IPv4 prefixes with an invalid ROA: 137 Number of IPv4 prefixes with no ROA: 409504 Total ASes present in the Internet Routing Table: 78332 Prefixes per ASN: 13.27 Origin-only ASes present in the Internet Routing Table: 67081 Origin ASes announcing only one prefix: 27389 Transit ASes present in the Internet Routing Table: 11251 Transit-only ASes present in the Internet Routing Table: 580 Paths with bogon ASNs present in the IPv4 Routing Table: 282 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: 1101 Number of instances of unregistered ASNs: 1131 Number of 32-bit ASNs allocated by the RIRs: 49228 Number of 32-bit ASNs visible in the Routing Table: 40347 Prefixes from 32-bit ASNs in the Routing Table: 226713 Number of bogon 32-bit ASNs visible in the Routing Table: 84 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 415 Number of addresses announced to Internet: 3108131584 Equivalent to 185 /8s, 66 /16s and 83 /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: 338450 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 282533 Total APNIC prefixes after maximum aggregation: 82431 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 269375 Unique aggregates announced from the APNIC address blocks: 107711 APNIC Region origin ASes present in the Internet Routing Table: 15158 APNIC Prefixes per ASN: 17.77 APNIC Region origin ASes announcing only one prefix: 4660 APNIC Region transit ASes present in the Internet Routing Table: 2051 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: 10725 Number of APNIC addresses announced to Internet: 752944128 Equivalent to 44 /8s, 225 /16s and 4 /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: 303488 Total ARIN prefixes after maximum aggregation: 135835 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 303060 Unique aggregates announced from the ARIN address blocks: 146769 ARIN Region origin ASes present in the Internet Routing Table: 19429 ARIN Prefixes per ASN: 15.60 ARIN Region origin ASes announcing only one prefix: 7119 ARIN Region transit ASes present in the Internet Routing Table: 1979 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: 5558 Number of ARIN addresses announced to Internet: 1348801024 Equivalent to 80 /8s, 101 /16s and 18 /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: 287565 Total RIPE prefixes after maximum aggregation: 142202 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 290096 Unique aggregates announced from the RIPE address blocks: 188702 RIPE Region origin ASes present in the Internet Routing Table: 29371 RIPE Prefixes per ASN: 9.88 RIPE Region origin ASes announcing only one prefix: 12176 RIPE Region transit ASes present in the Internet Routing Table: 4037 Average RIPE Region AS path length visible: 5.4 Max RIPE Region AS path length visible: 46 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13266 Number of RIPE addresses announced to Internet: 732919296 Equivalent to 43 /8s, 175 /16s and 118 /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: 127588 Total LACNIC prefixes after maximum aggregation: 30834 LACNIC Deaggregation factor: 4.14 Prefixes being announced from the LACNIC address blocks: 122778 Unique aggregates announced from the LACNIC address blocks: 50230 LACNIC Region origin ASes present in the Internet Routing Table: 11385 LACNIC Prefixes per ASN: 10.78 LACNIC Region origin ASes announcing only one prefix: 2699 LACNIC Region transit ASes present in the Internet Routing Table: 2603 Average LACNIC Region AS path length visible: 6.2 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9413 Number of LACNIC addresses announced to Internet: 169851904 Equivalent to 10 /8s, 31 /16s and 188 /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: 36965 Total AfriNIC prefixes after maximum aggregation: 7042 AfriNIC Deaggregation factor: 5.25 Prefixes being announced from the AfriNIC address blocks: 53515 Unique aggregates announced from the AfriNIC address blocks: 19360 AfriNIC Region origin ASes present in the Internet Routing Table: 2021 AfriNIC Prefixes per ASN: 26.48 AfriNIC Region origin ASes announcing only one prefix: 735 AfriNIC Region transit ASes present in the Internet Routing Table: 386 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 63 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1385 Number of AfriNIC addresses announced to Internet: 103420160 Equivalent to 6 /8s, 42 /16s and 17 /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 13820 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 5916 828 499 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4899 549 327 BBIL-AP BHARTI Airtel Ltd., IN 18403 4571 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4057 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3665 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3487 887 177 CMNET-JIANGSU-AP China Mobile communicati 45899 3343 1868 97 VNPT-AS-VN VNPT Corp, VN 17561 3044 192 545 LCS-AS-AP LARUS Limited, HK 24560 3012 859 517 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 14585 41274 5673 AMAZON-02 - Amazon.com, Inc., US 22773 4783 3117 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4667 310 1034 CABLEONE - CABLE ONE, INC., US 7155 3870 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3719 1305 77 SHAW - Shaw Communications, CA 396982 3316 4857 493 GOOGLE-CLOUD-PLATFORM - Google LLC, US 174 3205 8764 821 COGENT-174 - Cogent Communications, LLC, 749 3140 54728 2391 DNIC-AS-00749 - United States Department 16625 2744 1226 2112 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2706 222 893 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 7163 1711 149 UNI2-AS, ES 39891 4972 306 72 ALJAWWALSTC-AS, SA 20940 3953 3389 111 AKAMAI-ASN1, NL 9009 3831 354 2247 M247, RO 12389 3144 2318 872 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2716 197 1998 CDNEXT, GB 34984 2448 365 571 TELLCOM-AS, TR 8452 1726 1852 14 TE-AS TE-AS, EG 203020 1637 249 809 HOSTROYALE, IN 13188 1607 100 27 TRIOLAN, UA 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 12742 3299 620 UNINET, MX 10620 3429 450 1105 Telmex Colombia S.A., CO 13999 2459 506 345 Mega Cable, S.A. de C.V., MX 11830 1938 369 65 Instituto Costarricense de Electricidad y 11664 1435 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1376 2433 264 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 1066 2392 101 TIM SA, BR 22884 1052 71 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 2025 648 34 RAYA-AS, EG 36992 1859 1532 341 ETISALAT-MISR, EG 24863 1294 389 16 LINKdotNET-AS, EG 36935 1242 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 589 155 220 NTT-DATA-Inc, ZA 36914 551 82 3 KENET-AS, KE 15399 549 57 61 WANANCHI-, 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 14585 41274 5673 AMAZON-02 - Amazon.com, Inc., US 9808 13820 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12742 3299 620 UNINET, MX 12479 7163 1711 149 UNI2-AS, ES 7545 5916 828 499 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4972 306 72 ALJAWWALSTC-AS, SA 9498 4899 549 327 BBIL-AP BHARTI Airtel Ltd., IN 22773 4783 3117 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4667 310 1034 CABLEONE - CABLE ONE, INC., US 18403 4571 347 25 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 13820 13700 CHINAMOBILE-CN China Mobile Communications Grou 8151 12742 12122 UNINET, MX 12479 7163 7014 UNI2-AS, ES 7545 5916 5417 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4972 4900 ALJAWWALSTC-AS, SA 9498 4899 4572 BBIL-AP BHARTI Airtel Ltd., IN 18403 4571 4546 FPT-AS-AP FPT Telecom Company, VN 22773 4783 4417 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4057 4028 VIETEL-AS-AP Viettel Group, VN 20940 3953 3842 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 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/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: 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/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 /12:297 /13:584 /14:1193 /15:2109 /16:13613 /17:8299 /18:13339 /19:25465 /20:45798 /21:52355 /22:113692 /23:107267 /24:655063 /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 6934 12742 UNINET, MX 12479 6106 7163 UNI2-AS, ES 39891 3656 4972 ALJAWWALSTC-AS, SA 11492 3528 4667 CABLEONE - CABLE ONE, INC., US 6327 3500 3719 SHAW - Shaw Communications, CA 22773 3055 4783 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2824 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2627 14585 AMAZON-02 - Amazon.com, Inc., US 30036 2315 2662 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2233 3429 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) ---------------------------------------------- 1:2495 2:1834 3:994 4:5 5:5097 6:197 7:6 8:1489 9:39 11:172 12:1187 13:678 14:2686 15:459 16:170 17:422 18:915 20:601 21:4 22:188 23:8196 24:2797 25:2 27:2820 28:1 29:19 31:3471 32:36 34:86 35:283 36:4658 37:4450 38:10055 39:1281 40:423 41:4547 42:2181 43:3054 44:447 45:19792 46:4866 47:408 48:125 49:2227 50:2017 51:626 52:1297 54:271 55:1119 56:11 57:324 58:2342 59:1377 60:1180 61:3126 62:3123 63:1725 64:6296 65:2132 66:6077 67:3262 68:1497 69:4208 70:1055 71:621 72:3172 74:3023 75:1489 76:584 77:2924 78:1966 79:1788 80:2353 81:2211 82:4045 83:1451 84:2143 85:3793 86:1090 87:2340 88:1346 89:4704 90:781 91:8423 92:2824 93:3014 94:4359 95:4650 96:1456 97:315 98:943 99:808 100:68 101:1458 102:4475 103:32475 104:5352 105:818 106:912 107:2872 108:1228 109:4208 110:2293 111:4110 112:3162 113:1958 114:2266 115:2327 116:2151 117:3503 118:3001 119:2082 120:2700 121:1556 122:3001 123:2291 124:1658 125:2974 126:125 128:1624 129:977 130:1632 131:2477 132:823 133:475 134:1662 135:611 136:1607 137:1550 138:3306 139:1643 140:1754 141:1727 142:2527 143:2128 144:1726 145:644 146:2213 147:2197 148:2767 149:3093 150:1361 151:2788 152:2318 153:1372 154:9721 155:2303 156:4458 157:2299 158:1530 159:2863 160:3814 161:1960 162:4030 163:2496 164:2038 165:2637 166:1265 167:2299 168:3998 169:858 170:5540 171:1125 172:4577 173:3476 174:881 175:1363 176:3868 177:4853 178:4382 179:2310 180:3024 181:4498 182:4018 183:2839 184:2023 185:21833 186:5770 187:4933 188:4593 189:4498 190:9826 191:1565 192:11486 193:9613 194:7861 195:5818 196:3351 197:3254 198:6283 199:6079 200:8212 201:6380 202:10703 203:10661 204:4800 205:3748 206:4562 207:3987 208:4382 209:5451 210:4766 211:2683 212:5013 213:4122 214:1040 215:47 216:7283 217:3574 218:1701 219:414 220:2199 221:1311 222:937 223:3408 End of report