IPv4 R&E Routing Table Report 21:35 GMT Sun 19 Jul, 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: 1057887 Prefixes after maximum aggregation (per Origin AS): 407083 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 525124 Number of IPv4 prefixes with a valid ROA: 715065 Number of IPv4 prefixes with an invalid ROA: 159 Number of IPv4 prefixes with no ROA: 342663 Total ASes present in the Internet Routing Table: 78912 Prefixes per ASN: 13.41 Origin-only ASes present in the Internet Routing Table: 67530 Origin ASes announcing only one prefix: 27560 Transit ASes present in the Internet Routing Table: 11382 Transit-only ASes present in the Internet Routing Table: 597 Paths with bogon ASNs present in the IPv4 Routing Table: 340 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 69 Max AS path prepend of ASN (269326) 61 Prefixes from unregistered ASNs in the Routing Table: 1430 Number of instances of unregistered ASNs: 1469 Number of 32-bit ASNs allocated by the RIRs: 50486 Number of 32-bit ASNs visible in the Routing Table: 41121 Prefixes from 32-bit ASNs in the Routing Table: 235812 Number of bogon 32-bit ASNs visible in the Routing Table: 140 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 493 Number of addresses announced to Internet: 3118907392 Equivalent to 185 /8s, 230 /16s and 192 /24s Percentage of available address space announced: 84.2 Percentage of allocated address space announced: 84.2 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: 346308 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 287780 Total APNIC prefixes after maximum aggregation: 84135 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 273537 Unique aggregates announced from the APNIC address blocks: 109257 APNIC Region origin ASes present in the Internet Routing Table: 15308 APNIC Prefixes per ASN: 17.87 APNIC Region origin ASes announcing only one prefix: 4717 APNIC Region transit ASes present in the Internet Routing Table: 2077 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: 10894 Number of APNIC addresses announced to Internet: 748800512 Equivalent to 44 /8s, 161 /16s and 202 /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: 307102 Total ARIN prefixes after maximum aggregation: 138039 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 305384 Unique aggregates announced from the ARIN address blocks: 149781 ARIN Region origin ASes present in the Internet Routing Table: 19475 ARIN Prefixes per ASN: 15.68 ARIN Region origin ASes announcing only one prefix: 7114 ARIN Region transit ASes present in the Internet Routing Table: 1961 Average ARIN Region AS path length visible: 4.9 Max ARIN Region AS path length visible: 46 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5685 Number of ARIN addresses announced to Internet: 1348392704 Equivalent to 80 /8s, 94 /16s and 215 /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: 294173 Total RIPE prefixes after maximum aggregation: 146042 RIPE Deaggregation factor: 2.01 Prefixes being announced from the RIPE address blocks: 298779 Unique aggregates announced from the RIPE address blocks: 195570 RIPE Region origin ASes present in the Internet Routing Table: 29615 RIPE Prefixes per ASN: 10.09 RIPE Region origin ASes announcing only one prefix: 12242 RIPE Region transit ASes present in the Internet Routing Table: 4132 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 46 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13615 Number of RIPE addresses announced to Internet: 749569280 Equivalent to 44 /8s, 173 /16s and 133 /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 196608-219547 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: 129673 Total LACNIC prefixes after maximum aggregation: 30975 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 124331 Unique aggregates announced from the LACNIC address blocks: 50570 LACNIC Region origin ASes present in the Internet Routing Table: 11444 LACNIC Prefixes per ASN: 10.86 LACNIC Region origin ASes announcing only one prefix: 2756 LACNIC Region transit ASes present in the Internet Routing Table: 2634 Average LACNIC Region AS path length visible: 6.1 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9518 Number of LACNIC addresses announced to Internet: 167884032 Equivalent to 10 /8s, 1 /16s and 181 /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: 37729 Total AfriNIC prefixes after maximum aggregation: 7074 AfriNIC Deaggregation factor: 5.33 Prefixes being announced from the AfriNIC address blocks: 55362 Unique aggregates announced from the AfriNIC address blocks: 19527 AfriNIC Region origin ASes present in the Internet Routing Table: 2048 AfriNIC Prefixes per ASN: 27.03 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: 6.1 Max AfriNIC Region AS path length visible: 54 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1409 Number of AfriNIC addresses announced to Internet: 103986176 Equivalent to 6 /8s, 50 /16s and 180 /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 14015 8737 120 CHINAMOBILE-CN - China Mobile Communicati 7545 5846 818 454 TPG-INTERNET-AP - TPG Telecom Limited, AU 9498 5031 556 334 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4638 347 24 FPT-VN - FPT Telecom Company, VN 17561 4040 254 617 LCS-AS-AP - LARUS Limited, HK 7552 4024 1331 24 VIETEL-AS-AP - Viettel Group, VN 7713 3729 1044 64 telkomnet-as-ap - PT Telekomunikasi Indon 56046 3576 887 178 CMNET-Jiangsu-AP - China Mobile communica 45899 3386 1868 97 VNPT-AS-VN - VNPT Corp, VN 24560 2736 732 730 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 15587 41521 5635 AMAZON-02 - Amazon.com, Inc., US 22773 4784 3121 362 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4540 302 1152 CABLEONE - CABLE ONE, INC., US 7155 3962 286 111 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3725 1305 74 SHAW - Shaw Communications, CA 396982 3432 4872 530 GOOGLE-CLOUD-PLATFORM - Google LLC, US 36352 3164 238 1099 AS-COLOCROSSING - HostPapa, US 749 3138 54728 2389 DNIC-AS-00749 - United States Department 7029 2673 2536 881 WINDSTREAM - Windstream Communications LL 30036 2562 357 527 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom C 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 7089 1711 150 UNI2-AS - Orange Espagne SA, ES 39891 4975 307 72 ALJAWWALSTC-AS - Saudi Telecom Company JS 9009 4169 376 2555 M247 - M247 Europe SRL, RO 20940 3816 3389 111 AKAMAI-ASN1 - Akamai International B.V., 212238 3442 246 2586 CDNEXT - Datacamp Limited, GB 12389 3145 2325 874 ROSTELECOM-AS - PJSC Rostelecom, RU 34984 2493 367 587 TELLCOM-AS - Superonline Iletisim Hizmetl 8452 1713 1852 14 TE-AS - IDDQD-AS, EG 203020 1655 253 830 HostRoyale - HostRoyale Technologies Pvt 44559 1635 102 761 ITHOSTLINE - IT HOSTLINE LTD, CY 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 12816 3258 626 AS8151 - UNINET, MX 10620 3441 451 1105 AS10620 - Telmex Colombia S.A., CO 13999 2286 499 328 AS13999 - Mega Cable, S.A. de C.V., MX 11830 1910 369 65 AS11830 - Instituto Costarricense de Elec 11664 1500 277 34 AS11664 - Techtel LMDS Comunicaciones Int 28573 1372 2431 269 AS28573 - Claro NXT Telecomunicacoes Ltda 3816 1342 768 213 AS3816 - COLOMBIA TELECOMUNICACIONES S.A. 6147 1212 371 22 AS6147 - INTEGRATEL PERU S.A.A., PE 22884 1095 70 385 AS22884 - TOTAL PLAY TELECOMUNICACIONES, 26615 1055 2385 96 AS26615 - TIM S/A, 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 1987 601 34 Vodafone Data - Vodafone Data, EG 36992 1924 1543 334 ETISALAT MISR - ETISALAT MISR, EG 36903 1351 587 105 Office National des Postes et Telecommuni 24863 1305 389 16 Link Egypt (Link.NET) - Link Egypt (Link. 36935 1294 523 46 Vodafone Data - Vodafone Data, EG 37069 1116 1100 11 The Egyptian Company for Mobile Services 29571 1086 70 18 Orange Côte d'Ivoire - Orange Côte d'Iv 328608 586 54 190 Africa on Cloud - Africa on Cloud, ZA 36914 556 82 3 Kenya Education Network - Kenya Education 15399 550 57 59 Wananchi Group (Kenya) Limited - Wananchi 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 15587 41521 5635 AMAZON-02 - Amazon.com, Inc., US 9808 14015 8737 120 CHINAMOBILE-CN - China Mobile Communicati 8151 12816 3258 626 AS8151 - UNINET, MX 12479 7089 1711 150 UNI2-AS - Orange Espagne SA, ES 7545 5846 818 454 TPG-INTERNET-AP - TPG Telecom Limited, AU 9498 5031 556 334 BBIL-AP - BHARTI Airtel Ltd., IN 39891 4975 307 72 ALJAWWALSTC-AS - Saudi Telecom Company JS 22773 4784 3121 362 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 18403 4638 347 24 FPT-VN - FPT Telecom Company, VN 11492 4540 302 1152 CABLEONE - CABLE ONE, INC., US 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 14015 13895 CHINAMOBILE-CN - China Mobile Communications Gr 8151 12816 12190 AS8151 - UNINET, MX 12479 7089 6939 UNI2-AS - Orange Espagne SA, ES 7545 5846 5392 TPG-INTERNET-AP - TPG Telecom Limited, AU 39891 4975 4903 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 9498 5031 4697 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4638 4614 FPT-VN - FPT Telecom Company, VN 22773 4784 4422 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4024 4000 VIETEL-AS-AP - Viettel Group, VN 7155 3962 3851 VIASAT-SP-BACKBONE - ViaSat,Inc., US 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 394928 UNALLOCATED 8.2.70.0/24 3356 LEVEL3 - Level 3 Parent 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 396243 UNALLOCATED 8.34.113.0/24 3356 LEVEL3 - Level 3 Parent 397274 UNALLOCATED 8.36.79.0/24 3356 LEVEL3 - Level 3 Parent 396243 UNALLOCATED 8.37.112.0/24 3356 LEVEL3 - Level 3 Parent 396243 UNALLOCATED 8.37.123.0/24 3356 LEVEL3 - Level 3 Parent 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 397274 UNALLOCATED 8.40.70.0/24 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 23.131.100.0/24 Origin: 401541 UNASSIGNED 23.131.100.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.131.156.0/24 Origin: 401541 UNASSIGNED 23.131.156.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.131.212.0/24 Origin: 401541 UNASSIGNED 23.131.212.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.133.212.0/24 Origin: 18604 UNASSIGNED 23.133.212.0/24 Transit: 32217 GPIEX - GPIEX INC, US 23.134.212.0/24 Origin: 8143 NEBUSRT - Neburst LLC, US 23.134.212.0/24 Transit: 17476 CHL-AS-AP - CloudRadium (HK) Limited, HK 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 /10:39 /11:97 /12:299 /13:588 /14:1186 /15:2126 /16:13697 /17:8311 /18:13330 /19:25496 /20:45817 /21:52724 /22:113440 /23:109253 /24:671453 /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 7051 12816 AS8151 - UNINET, MX 12479 6012 7089 UNI2-AS - Orange Espagne SA, ES 39891 3660 4975 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 6327 3506 3725 SHAW - Shaw Communications, CA 11492 3440 4540 CABLEONE - CABLE ONE, INC., US 22773 3055 4784 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 16509 2944 15587 AMAZON-02 - Amazon.com, Inc., US 7155 2916 3962 VIASAT-SP-BACKBONE - ViaSat,Inc., US 10620 2245 3441 AS10620 - Telmex Colombia S.A., CO 30036 2216 2562 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US Complete listing at https://bgp.nsrc.org/REN/USP/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2548 2:2302 3:1024 4:5 5:5316 6:206 7:6 8:1378 9:77 11:172 12:1092 13:788 14:2748 15:479 16:269 17:451 18:946 20:617 21:4 22:188 23:8519 24:2779 25:2 27:2868 28:6 29:19 31:3821 32:36 34:89 35:286 36:4835 37:4439 38:10050 39:1373 40:432 41:4563 42:2215 43:3328 44:462 45:20060 46:4981 47:459 48:168 49:2268 50:2012 51:863 52:1368 54:303 55:1164 56:11 57:325 58:2381 59:1344 60:1213 61:3181 62:3161 63:1745 64:6527 65:2148 66:6119 67:3314 68:1293 69:4080 70:1045 71:613 72:3261 74:3063 75:1513 76:594 77:2914 78:2109 79:1930 80:2381 81:2285 82:4241 83:1486 84:2169 85:3919 86:1093 87:2769 88:1317 89:4811 90:785 91:8507 92:2773 93:3046 94:4456 95:4705 96:1451 97:308 98:930 99:966 100:72 101:1448 102:4731 103:32484 104:5626 105:839 106:898 107:2940 108:1325 109:3923 110:2281 111:4149 112:3114 113:1932 114:2507 115:2331 116:2080 117:3675 118:3072 119:2097 120:2783 121:1660 122:3045 123:2232 124:1727 125:2977 126:158 128:1601 129:981 130:1725 131:2549 132:892 133:488 134:1752 135:648 136:1539 137:1577 138:3466 139:1807 140:1873 141:1737 142:2625 143:2122 144:1829 145:674 146:2197 147:2308 148:2801 149:3335 150:1378 151:2967 152:2406 153:1968 154:10000 155:2365 156:4761 157:2440 158:1609 159:2890 160:3894 161:2038 162:4171 163:2680 164:2383 165:2775 166:1304 167:2363 168:4263 169:902 170:5618 171:1132 172:4929 173:3474 174:886 175:1381 176:4044 177:5152 178:4495 179:2526 180:3242 181:4658 182:4049 183:2834 184:2045 185:21942 186:6551 187:5502 188:4742 189:4642 190:9928 191:1799 192:11829 193:9633 194:7934 195:5898 196:3458 197:3133 198:6309 199:6080 200:8411 201:6648 202:10725 203:10684 204:4750 205:3782 206:4478 207:4083 208:4341 209:5483 210:4775 211:2696 212:5199 213:4123 214:1023 215:47 216:7319 217:3747 218:1861 219:416 220:2288 221:1343 222:941 223:3590 End of report