IPv4 R&E Routing Table Report 21:35 GMT Sat 22 Aug, 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: 1065248 Prefixes after maximum aggregation (per Origin AS): 409446 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 528207 Number of IPv4 prefixes with a valid ROA: 734288 Number of IPv4 prefixes with an invalid ROA: 175 Number of IPv4 prefixes with no ROA: 330785 Total ASes present in the Internet Routing Table: 79161 Prefixes per ASN: 13.46 Origin-only ASes present in the Internet Routing Table: 67721 Origin ASes announcing only one prefix: 27719 Transit ASes present in the Internet Routing Table: 11440 Transit-only ASes present in the Internet Routing Table: 616 Paths with bogon ASNs present in the IPv4 Routing Table: 298 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: 1384 Number of instances of unregistered ASNs: 1422 Number of 32-bit ASNs allocated by the RIRs: 50926 Number of 32-bit ASNs visible in the Routing Table: 41422 Prefixes from 32-bit ASNs in the Routing Table: 238785 Number of bogon 32-bit ASNs visible in the Routing Table: 98 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 515 Number of addresses announced to Internet: 3119784960 Equivalent to 185 /8s, 244 /16s and 36 /24s Percentage of available address space announced: 84.3 Percentage of allocated address space announced: 84.3 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: 350406 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 288739 Total APNIC prefixes after maximum aggregation: 84081 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 275440 Unique aggregates announced from the APNIC address blocks: 109409 APNIC Region origin ASes present in the Internet Routing Table: 15318 APNIC Prefixes per ASN: 17.98 APNIC Region origin ASes announcing only one prefix: 4728 APNIC Region transit ASes present in the Internet Routing Table: 2059 Average APNIC Region AS path length visible: 5.1 Max APNIC Region AS path length visible: 38 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10916 Number of APNIC addresses announced to Internet: 748297728 Equivalent to 44 /8s, 154 /16s and 30 /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: 309219 Total ARIN prefixes after maximum aggregation: 138840 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 307311 Unique aggregates announced from the ARIN address blocks: 150832 ARIN Region origin ASes present in the Internet Routing Table: 19518 ARIN Prefixes per ASN: 15.75 ARIN Region origin ASes announcing only one prefix: 7173 ARIN Region transit ASes present in the Internet Routing Table: 1976 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: 5749 Number of ARIN addresses announced to Internet: 1350059776 Equivalent to 80 /8s, 120 /16s and 71 /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: 296815 Total RIPE prefixes after maximum aggregation: 147238 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 302391 Unique aggregates announced from the RIPE address blocks: 197349 RIPE Region origin ASes present in the Internet Routing Table: 29739 RIPE Prefixes per ASN: 10.17 RIPE Region origin ASes announcing only one prefix: 12294 RIPE Region transit ASes present in the Internet Routing Table: 4144 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: 13751 Number of RIPE addresses announced to Internet: 749712640 Equivalent to 44 /8s, 175 /16s and 181 /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: 131413 Total LACNIC prefixes after maximum aggregation: 31444 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 125586 Unique aggregates announced from the LACNIC address blocks: 51266 LACNIC Region origin ASes present in the Internet Routing Table: 11481 LACNIC Prefixes per ASN: 10.94 LACNIC Region origin ASes announcing only one prefix: 2778 LACNIC Region transit ASes present in the Internet Routing Table: 2666 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: 9572 Number of LACNIC addresses announced to Internet: 168132864 Equivalent to 10 /8s, 5 /16s and 129 /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: 37678 Total AfriNIC prefixes after maximum aggregation: 7025 AfriNIC Deaggregation factor: 5.36 Prefixes being announced from the AfriNIC address blocks: 54004 Unique aggregates announced from the AfriNIC address blocks: 18920 AfriNIC Region origin ASes present in the Internet Routing Table: 2066 AfriNIC Prefixes per ASN: 26.14 AfriNIC Region origin ASes announcing only one prefix: 746 AfriNIC Region transit ASes present in the Internet Routing Table: 385 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 58 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1434 Number of AfriNIC addresses announced to Internet: 103299840 Equivalent to 6 /8s, 40 /16s and 59 /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 14126 8736 124 CHINAMOBILE-CN - China Mobile Communicati 7545 5839 832 279 TPG-INTERNET-AP - TPG Telecom Limited, AU 9498 5070 559 342 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4619 347 24 FPT-VN - FPT Telecom Company, VN 7552 4028 1331 24 VIETEL-AS-AP - Viettel Group, VN 7713 3627 1043 65 telkomnet-as-ap - PT Telekomunikasi Indon 56046 3615 887 178 CMNET-Jiangsu-AP - China Mobile communica 45899 3395 1868 97 VNPT-AS-VN - VNPT Corp, VN 140292 3110 316 1818 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK - 17561 2806 176 492 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 15948 42028 5642 AMAZON-02 - Amazon.com, Inc., US 22773 4862 3185 423 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4601 306 1139 CABLEONE - CABLE ONE, INC., US 7155 3998 286 87 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3743 1305 74 SHAW - Shaw Communications, CA 396982 3459 4879 546 GOOGLE-CLOUD-PLATFORM - Google LLC, US 36352 3175 237 1110 AS-COLOCROSSING - HostPapa, US 749 3131 54647 2382 DNIC-AS-00749 - United States Department 7029 2771 2575 892 WINDSTREAM - Windstream Communications LL 31898 2646 1340 1167 ORACLE-BMC-31898 - Oracle Corporation, 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 6978 1711 150 UNI2-AS - Orange Espagne SA, ES 39891 4907 302 76 ALJAWWALSTC-AS - Saudi Telecom Company JS 9009 4178 374 2542 M247 - M247 Europe SRL, RO 20940 3814 3388 106 AKAMAI-ASN1 - Akamai International B.V., 212238 3544 256 2672 CDNEXT - Datacamp Limited, GB 12389 3121 2330 869 ROSTELECOM-AS - PJSC Rostelecom, RU 29355 2520 150 27 KCELL-AS - Kcell JSC, KZ 34984 2512 369 584 TELLCOM-AS - Superonline Iletisim Hizmetl 8452 1716 1852 14 TE-AS - IDDQD-AS, EG 44559 1696 106 784 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 13088 3285 612 AS8151 - UNINET, MX 10620 3444 451 1107 AS10620 - Telmex Colombia S.A., CO 13999 2264 499 331 AS13999 - Mega Cable, S.A. de C.V., MX 11830 1884 369 65 AS11830 - Instituto Costarricense de Elec 11664 1499 277 34 AS11664 - Techtel LMDS Comunicaciones Int 28573 1377 2431 269 AS28573 - Claro NXT Telecomunicacoes Ltda 3816 1266 762 224 AS3816 - COLOMBIA TELECOMUNICACIONES S.A. 6147 1193 371 21 AS6147 - INTEGRATEL PERU S.A.A., PE 22884 1095 70 383 AS22884 - TOTAL PLAY TELECOMUNICACIONES, 26615 1049 2343 92 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 1982 537 31 Vodafone Data - Vodafone Data, EG 36992 1928 1543 333 ETISALAT MISR - ETISALAT MISR, EG 36903 1350 587 104 Office National des Postes et Telecommuni 24863 1296 389 16 Link Egypt (Link.NET) - Link Egypt (Link. 36935 1254 523 49 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 15399 552 57 62 Wananchi Group (Kenya) Limited - Wananchi 36914 544 82 3 Kenya Education Network - Kenya Education 37342 539 32 1 Movitel, SA - Movitel, SA, MZ 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 15948 42028 5642 AMAZON-02 - Amazon.com, Inc., US 9808 14126 8736 124 CHINAMOBILE-CN - China Mobile Communicati 8151 13088 3285 612 AS8151 - UNINET, MX 12479 6978 1711 150 UNI2-AS - Orange Espagne SA, ES 7545 5839 832 279 TPG-INTERNET-AP - TPG Telecom Limited, AU 9498 5070 559 342 BBIL-AP - BHARTI Airtel Ltd., IN 39891 4907 302 76 ALJAWWALSTC-AS - Saudi Telecom Company JS 22773 4862 3185 423 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 18403 4619 347 24 FPT-VN - FPT Telecom Company, VN 11492 4601 306 1139 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 14126 14002 CHINAMOBILE-CN - China Mobile Communications Gr 8151 13088 12476 AS8151 - UNINET, MX 12479 6978 6828 UNI2-AS - Orange Espagne SA, ES 7545 5839 5560 TPG-INTERNET-AP - TPG Telecom Limited, AU 39891 4907 4831 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 9498 5070 4728 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4619 4595 FPT-VN - FPT Telecom Company, VN 22773 4862 4439 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4028 4004 VIETEL-AS-AP - Viettel Group, VN 7155 3998 3911 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 8.33.224.0/24 174 COGENT-174 - Cogent Com 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 23.130.160.0/24 Origin: 16509 AMAZON-02 - Amazon.com, Inc., US 23.130.160.0/24 Transit: 7575 AARNET-AS-AP - Australian Academic and R 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: 394625 WHITELABELIT - WhiteLabel IT Solutions C 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 /13:592 /14:1191 /15:2131 /16:13703 /17:8290 /18:13259 /19:25464 /20:45650 /21:53411 /22:113568 /23:110350 /24:677173 /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 7260 13088 AS8151 - UNINET, MX 12479 5909 6978 UNI2-AS - Orange Espagne SA, ES 39891 3656 4907 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 6327 3522 3743 SHAW - Shaw Communications, CA 11492 3507 4601 CABLEONE - CABLE ONE, INC., US 22773 3112 4862 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 16509 3052 15948 AMAZON-02 - Amazon.com, Inc., US 7155 2951 3998 VIASAT-SP-BACKBONE - ViaSat,Inc., US 10620 2248 3444 AS10620 - Telmex Colombia S.A., CO 30036 2205 2550 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) ---------------------------------------------- 1:2669 2:2863 3:1028 4:5 5:5384 6:206 7:6 8:1357 9:97 11:172 12:1097 13:902 14:2753 15:487 16:269 17:463 18:959 20:619 21:4 22:188 23:8553 24:2729 25:2 27:2965 28:7 29:19 31:3845 32:36 34:91 35:291 36:4881 37:4476 38:10298 39:1387 40:424 41:4594 42:2230 43:3414 44:506 45:19715 46:4984 47:461 48:171 49:2297 50:2017 51:857 52:1370 54:325 55:1072 56:11 57:328 58:2453 59:1364 60:1257 61:3222 62:3156 63:1729 64:6637 65:2170 66:6237 67:3331 68:1307 69:4087 70:1046 71:612 72:3246 74:3114 75:1608 76:590 77:2973 78:2125 79:1834 80:2380 81:2298 82:4400 83:1498 84:2165 85:3904 86:1130 87:2995 88:1339 89:4861 90:765 91:8513 92:2743 93:3050 94:4528 95:4776 96:1451 97:306 98:940 99:980 100:65 101:1590 102:4786 103:32473 104:5661 105:839 106:927 107:2986 108:1397 109:3972 110:2276 111:4217 112:3145 113:1947 114:2581 115:2338 116:2100 117:3867 118:3060 119:2087 120:2826 121:1854 122:3059 123:2240 124:1694 125:2979 126:156 128:1608 129:985 130:1744 131:2546 132:885 133:492 134:1762 135:675 136:1575 137:1595 138:3435 139:1814 140:1872 141:1835 142:2647 143:2224 144:1882 145:676 146:2205 147:2348 148:2845 149:3637 150:1427 151:3004 152:2446 153:2115 154:9551 155:2397 156:4122 157:2459 158:1640 159:2931 160:4051 161:2098 162:4216 163:2709 164:2393 165:2785 166:1224 167:2379 168:4243 169:923 170:5644 171:1126 172:4909 173:3465 174:889 175:1415 176:4033 177:5528 178:4577 179:2799 180:3270 181:4661 182:4093 183:2870 184:2067 185:22008 186:6503 187:5775 188:4696 189:4781 190:10032 191:1862 192:11834 193:9653 194:7932 195:5922 196:3420 197:3236 198:6354 199:6130 200:8440 201:6764 202:10699 203:10744 204:4759 205:3758 206:4441 207:4102 208:4323 209:5481 210:4775 211:2721 212:5268 213:4131 214:1022 215:47 216:7332 217:3763 218:1904 219:417 220:2262 221:1434 222:968 223:3608 End of report