IPv4 R&E Routing Table Report 21:35 GMT Mon 06 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: 1038213 Prefixes after maximum aggregation (per Origin AS): 398712 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 512250 Number of IPv4 prefixes with a valid ROA: 627264 Number of IPv4 prefixes with an invalid ROA: 139 Number of IPv4 prefixes with no ROA: 410810 Total ASes present in the Internet Routing Table: 78266 Prefixes per ASN: 13.27 Origin-only ASes present in the Internet Routing Table: 66989 Origin ASes announcing only one prefix: 27361 Transit ASes present in the Internet Routing Table: 11277 Transit-only ASes present in the Internet Routing Table: 583 Paths with bogon ASNs present in the IPv4 Routing Table: 284 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: 1129 Number of instances of unregistered ASNs: 1159 Number of 32-bit ASNs allocated by the RIRs: 49225 Number of 32-bit ASNs visible in the Routing Table: 40279 Prefixes from 32-bit ASNs in the Routing Table: 225944 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: 401 Number of addresses announced to Internet: 3107529984 Equivalent to 185 /8s, 57 /16s and 37 /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: 338122 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 282279 Total APNIC prefixes after maximum aggregation: 82417 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 269295 Unique aggregates announced from the APNIC address blocks: 107505 APNIC Region origin ASes present in the Internet Routing Table: 15134 APNIC Prefixes per ASN: 17.79 APNIC Region origin ASes announcing only one prefix: 4649 APNIC Region transit ASes present in the Internet Routing Table: 2050 Average APNIC Region AS path length visible: 5.2 Max APNIC Region AS path length visible: 53 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10699 Number of APNIC addresses announced to Internet: 752833536 Equivalent to 44 /8s, 223 /16s and 84 /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: 303215 Total ARIN prefixes after maximum aggregation: 135751 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 302759 Unique aggregates announced from the ARIN address blocks: 146596 ARIN Region origin ASes present in the Internet Routing Table: 19418 ARIN Prefixes per ASN: 15.59 ARIN Region origin ASes announcing only one prefix: 7106 ARIN Region transit ASes present in the Internet Routing Table: 1982 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: 5545 Number of ARIN addresses announced to Internet: 1348321792 Equivalent to 80 /8s, 93 /16s and 194 /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: 287300 Total RIPE prefixes after maximum aggregation: 142059 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 289544 Unique aggregates announced from the RIPE address blocks: 188216 RIPE Region origin ASes present in the Internet Routing Table: 29362 RIPE Prefixes per ASN: 9.86 RIPE Region origin ASes announcing only one prefix: 12165 RIPE Region transit ASes present in the Internet Routing Table: 4045 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: 13248 Number of RIPE addresses announced to Internet: 732779776 Equivalent to 43 /8s, 173 /16s and 85 /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: 127337 Total LACNIC prefixes after maximum aggregation: 30753 LACNIC Deaggregation factor: 4.14 Prefixes being announced from the LACNIC address blocks: 122852 Unique aggregates announced from the LACNIC address blocks: 50250 LACNIC Region origin ASes present in the Internet Routing Table: 11385 LACNIC Prefixes per ASN: 10.79 LACNIC Region origin ASes announcing only one prefix: 2711 LACNIC Region transit ASes present in the Internet Routing Table: 2615 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: 9407 Number of LACNIC addresses announced to Internet: 169910272 Equivalent to 10 /8s, 32 /16s and 160 /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: 36953 Total AfriNIC prefixes after maximum aggregation: 7001 AfriNIC Deaggregation factor: 5.28 Prefixes being announced from the AfriNIC address blocks: 53361 Unique aggregates announced from the AfriNIC address blocks: 19341 AfriNIC Region origin ASes present in the Internet Routing Table: 2014 AfriNIC Prefixes per ASN: 26.50 AfriNIC Region origin ASes announcing only one prefix: 730 AfriNIC Region transit ASes present in the Internet Routing Table: 387 Average AfriNIC Region AS path length visible: 6.2 Max AfriNIC Region AS path length visible: 63 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1380 Number of AfriNIC addresses announced to Internet: 103427584 Equivalent to 6 /8s, 42 /16s and 46 /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 13812 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 5919 828 501 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4888 549 322 BBIL-AP BHARTI Airtel Ltd., IN 18403 4545 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4056 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3657 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3483 887 177 CMNET-JIANGSU-AP China Mobile communicati 45899 3344 1868 97 VNPT-AS-VN VNPT Corp, VN 24560 3006 859 522 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2861 180 543 LCS-AS-AP LARUS Limited, HK 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 14532 41230 5640 AMAZON-02 - Amazon.com, Inc., US 22773 4785 3117 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4667 310 1031 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3723 1305 77 SHAW - Shaw Communications, CA 396982 3299 4857 490 GOOGLE-CLOUD-PLATFORM - Google LLC, US 174 3216 8765 816 COGENT-174 - Cogent Communications, LLC, 749 3140 54728 2391 DNIC-AS-00749 - United States Department 16625 2760 1227 2123 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2707 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 7176 1711 149 UNI2-AS, ES 39891 4972 306 72 ALJAWWALSTC-AS, SA 20940 3950 3389 111 AKAMAI-ASN1, NL 9009 3821 353 2245 M247, RO 12389 3144 2318 872 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2701 195 1984 CDNEXT, GB 34984 2448 365 571 TELLCOM-AS, TR 8452 1725 1852 14 TE-AS TE-AS, EG 203020 1636 248 808 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 12819 3292 611 UNINET, MX 10620 3453 458 1104 Telmex Colombia S.A., CO 13999 2463 506 344 Mega Cable, S.A. de C.V., MX 11830 1948 369 65 Instituto Costarricense de Electricidad y 11664 1461 278 33 Techtel LMDS Comunicaciones Interactivas 28573 1373 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1243 371 22 INTEGRATEL PERU S.A.A., PE 26615 1058 2393 95 TIM SA, BR 22884 1057 71 359 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 1856 1532 339 ETISALAT-MISR, EG 24863 1292 389 16 LINKdotNET-AS, EG 36935 1241 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 15399 550 57 61 WANANCHI-, KE 36914 546 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 14532 41230 5640 AMAZON-02 - Amazon.com, Inc., US 9808 13812 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12819 3292 611 UNINET, MX 12479 7176 1711 149 UNI2-AS, ES 7545 5919 828 501 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4972 306 72 ALJAWWALSTC-AS, SA 9498 4888 549 322 BBIL-AP BHARTI Airtel Ltd., IN 22773 4785 3117 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4667 310 1031 CABLEONE - CABLE ONE, INC., US 18403 4545 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 13812 13692 CHINAMOBILE-CN China Mobile Communications Grou 8151 12819 12208 UNINET, MX 12479 7176 7027 UNI2-AS, ES 7545 5919 5418 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4972 4900 ALJAWWALSTC-AS, SA 9498 4888 4566 BBIL-AP BHARTI Airtel Ltd., IN 18403 4545 4520 FPT-AS-AP FPT Telecom Company, VN 22773 4785 4419 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4056 4027 VIETEL-AS-AP Viettel Group, VN 20940 3950 3839 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 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 395476 UNALLOCATED 12.36.195.0/24 3356 LEVEL3 - Level 3 Parent 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 /14:1195 /15:2108 /16:13608 /17:8298 /18:13334 /19:25443 /20:45778 /21:52302 /22:113732 /23:107297 /24:654071 /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 6997 12819 UNINET, MX 12479 6118 7176 UNI2-AS, ES 39891 3656 4972 ALJAWWALSTC-AS, SA 11492 3528 4667 CABLEONE - CABLE ONE, INC., US 6327 3504 3723 SHAW - Shaw Communications, CA 22773 3057 4785 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2612 14532 AMAZON-02 - Amazon.com, Inc., US 30036 2313 2662 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2233 3453 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) ---------------------------------------------- 1:2493 2:1838 3:993 4:5 5:5112 6:196 7:6 8:1488 9:39 11:172 12:1189 13:675 14:2676 15:456 16:170 17:423 18:912 20:600 21:4 22:188 23:8261 24:2777 25:2 27:2826 28:1 29:19 31:3416 32:36 34:87 35:281 36:4644 37:4445 38:10040 39:1278 40:422 41:4532 42:2186 43:3053 44:446 45:19787 46:4892 47:408 48:121 49:2224 50:1999 51:626 52:1295 54:273 55:1117 56:11 57:319 58:2342 59:1377 60:1173 61:3134 62:3125 63:1743 64:6289 65:2133 66:6070 67:3254 68:1496 69:4186 70:1052 71:616 72:3157 74:3017 75:1482 76:581 77:2915 78:1956 79:1790 80:2344 81:2190 82:4045 83:1451 84:2135 85:3787 86:1090 87:2314 88:1348 89:4693 90:784 91:8424 92:2826 93:3014 94:4344 95:4656 96:1451 97:315 98:943 99:807 100:68 101:1461 102:4472 103:32454 104:5336 105:820 106:912 107:2866 108:1223 109:4226 110:2291 111:4111 112:3155 113:1968 114:2267 115:2325 116:2164 117:3504 118:2991 119:2083 120:2693 121:1556 122:2983 123:2289 124:1657 125:2979 126:125 128:1628 129:984 130:1625 131:2480 132:814 133:475 134:1664 135:601 136:1608 137:1549 138:3268 139:1642 140:1763 141:1727 142:2521 143:2140 144:1701 145:643 146:2207 147:2187 148:2761 149:3095 150:1359 151:2766 152:2319 153:1079 154:9562 155:2318 156:4458 157:2291 158:1521 159:2818 160:3823 161:1961 162:4033 163:2490 164:2036 165:2638 166:1271 167:2289 168:3984 169:857 170:5535 171:1121 172:4561 173:3467 174:881 175:1362 176:3864 177:4820 178:4398 179:2290 180:3018 181:4493 182:4019 183:2840 184:2022 185:21830 186:5778 187:4952 188:4607 189:4520 190:9786 191:1562 192:11498 193:9587 194:7860 195:5816 196:3339 197:3254 198:6278 199:6056 200:8234 201:6411 202:10697 203:10659 204:4789 205:3789 206:4531 207:3984 208:4388 209:5448 210:4768 211:2685 212:5014 213:4108 214:1055 215:47 216:7250 217:3574 218:1702 219:422 220:2201 221:1315 222:939 223:3404 End of report