IPv4 R&E Routing Table Report 21:35 GMT Sat 24 Oct, 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: 1072488 Prefixes after maximum aggregation (per Origin AS): 415921 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 536602 Number of IPv4 prefixes with a valid ROA: 757169 Number of IPv4 prefixes with an invalid ROA: 225 Number of IPv4 prefixes with no ROA: 315094 Total ASes present in the Internet Routing Table: 79649 Prefixes per ASN: 13.47 Origin-only ASes present in the Internet Routing Table: 68210 Origin ASes announcing only one prefix: 27978 Transit ASes present in the Internet Routing Table: 11439 Transit-only ASes present in the Internet Routing Table: 636 Paths with bogon ASNs present in the IPv4 Routing Table: 334 Average AS path length visible in the Internet Routing Table: 5.5 Max AS path length visible: 86 Max AS path prepend of ASN ( 37447) 81 Prefixes from unregistered ASNs in the Routing Table: 1286 Number of instances of unregistered ASNs: 1309 Number of 32-bit ASNs allocated by the RIRs: 51863 Number of 32-bit ASNs visible in the Routing Table: 42062 Prefixes from 32-bit ASNs in the Routing Table: 244285 Number of bogon 32-bit ASNs visible in the Routing Table: 60 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 559 Number of addresses announced to Internet: 3126688768 Equivalent to 186 /8s, 93 /16s and 124 /24s Percentage of available address space announced: 84.5 Percentage of allocated address space announced: 84.5 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: 356445 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 283130 Total APNIC prefixes after maximum aggregation: 85104 APNIC Deaggregation factor: 3.33 Prefixes being announced from the APNIC address blocks: 272385 Unique aggregates announced from the APNIC address blocks: 110635 APNIC Region origin ASes present in the Internet Routing Table: 15429 APNIC Prefixes per ASN: 17.65 APNIC Region origin ASes announcing only one prefix: 4790 APNIC Region transit ASes present in the Internet Routing Table: 2057 Average APNIC Region AS path length visible: 5.5 Max APNIC Region AS path length visible: 40 Number of APNIC region 32-bit ASNs visible in the Routing Table: 11051 Number of APNIC addresses announced to Internet: 748866816 Equivalent to 44 /8s, 162 /16s and 205 /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: 315572 Total ARIN prefixes after maximum aggregation: 140717 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 312383 Unique aggregates announced from the ARIN address blocks: 153365 ARIN Region origin ASes present in the Internet Routing Table: 19572 ARIN Prefixes per ASN: 15.96 ARIN Region origin ASes announcing only one prefix: 7228 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: 46 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5868 Number of ARIN addresses announced to Internet: 1356016640 Equivalent to 80 /8s, 211 /16s and 44 /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: 301173 Total RIPE prefixes after maximum aggregation: 150202 RIPE Deaggregation factor: 2.01 Prefixes being announced from the RIPE address blocks: 308113 Unique aggregates announced from the RIPE address blocks: 202579 RIPE Region origin ASes present in the Internet Routing Table: 29977 RIPE Prefixes per ASN: 10.28 RIPE Region origin ASes announcing only one prefix: 12425 RIPE Region transit ASes present in the Internet Routing Table: 4157 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 49 Number of RIPE region 32-bit ASNs visible in the Routing Table: 14062 Number of RIPE addresses announced to Internet: 750676224 Equivalent to 44 /8s, 190 /16s and 105 /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: 132562 Total LACNIC prefixes after maximum aggregation: 31946 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 126024 Unique aggregates announced from the LACNIC address blocks: 51793 LACNIC Region origin ASes present in the Internet Routing Table: 11537 LACNIC Prefixes per ASN: 10.92 LACNIC Region origin ASes announcing only one prefix: 2767 LACNIC Region transit ASes present in the Internet Routing Table: 2647 Average LACNIC Region AS path length visible: 6.2 Max LACNIC Region AS path length visible: 51 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9620 Number of LACNIC addresses announced to Internet: 167345152 Equivalent to 9 /8s, 249 /16s and 124 /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: 38765 Total AfriNIC prefixes after maximum aggregation: 7195 AfriNIC Deaggregation factor: 5.39 Prefixes being announced from the AfriNIC address blocks: 53023 Unique aggregates announced from the AfriNIC address blocks: 17760 AfriNIC Region origin ASes present in the Internet Routing Table: 2097 AfriNIC Prefixes per ASN: 25.29 AfriNIC Region origin ASes announcing only one prefix: 768 AfriNIC Region transit ASes present in the Internet Routing Table: 384 Average AfriNIC Region AS path length visible: 6.4 Max AfriNIC Region AS path length visible: 86 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1461 Number of AfriNIC addresses announced to Internet: 103475456 Equivalent to 6 /8s, 42 /16s and 233 /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 14009 8737 135 CHINAMOBILE-CN - China Mobile Communicati 9498 5116 560 333 BBIL-AP - BHARTI Airtel Ltd., IN 7545 4645 842 279 TPG-INTERNET-AP - TPG Telecom Limited, AU 7552 4099 1331 24 VIETEL-AS-AP - Viettel Group, VN 56046 3638 888 183 CMNET-Jiangsu-AP - China Mobile communica 7713 3504 1044 69 telkomnet-as-ap - PT Telekomunikasi Indon 140292 3265 330 1663 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK - 45899 3246 1867 103 VNPT-AS-VN - VNPT Corp, VN 24560 2391 538 669 AIRTELBROADBAND-AS-AP - Bharti Airtel Ltd 4755 2268 428 194 TATACOMM-AS - TATA Communications formerl 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 17383 42609 5648 AMAZON-02 - Amazon.com, Inc., US 22773 4914 3311 466 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4632 308 1099 CABLEONE - CABLE ONE, INC., US 7155 4337 286 87 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3842 1305 75 SHAW - Shaw Communications, CA 396982 3554 5382 603 GOOGLE-CLOUD-PLATFORM - Google LLC, US 36352 3287 244 1151 AS-COLOCROSSING - HostPapa, US 749 3132 54647 2383 DNIC-AS-00749 - United States Department 7029 2953 2574 937 WINDSTREAM - Windstream Communications LL 31898 2838 1423 1180 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 6891 1709 149 UNI2-AS - Orange Espagne SA, ES 39891 5044 311 77 ALJAWWALSTC-AS - Saudi Telecom Company JS 9009 4342 388 2648 M247 - M247 Europe SRL, RO 20940 3842 3388 105 AKAMAI-ASN1 - Akamai International B.V., 212238 3594 259 2751 CDNEXT - Datacamp Limited, GB 12389 3105 2329 870 ROSTELECOM-AS - PJSC Rostelecom, RU 29355 2525 155 30 KCELL-AS - Kcell JSC, KZ 34984 2519 370 597 TELLCOM-AS - Superonline Iletisim Hizmetl 25019 1954 1384 141 SAUDINETSTC-AS - Saudi Telecom Company JS 3257 1738 2082 978 GTT-BACKBONE - GTT Communications Inc., U 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 13307 3300 614 AS8151 - UNINET, MX 10620 3398 442 1121 AS10620 - Telmex Colombia S.A., CO 13999 2226 495 326 AS13999 - Mega Cable, S.A. de C.V., MX 11830 1845 369 65 AS11830 - Instituto Costarricense de Elec 11664 1514 277 34 AS11664 - Techtel LMDS Comunicaciones Int 28573 1392 2433 268 AS28573 - Claro NXT Telecomunicacoes Ltda 3816 1268 763 226 AS3816 - COLOMBIA TELECOMUNICACIONES S.A. 6147 1174 371 21 AS6147 - INTEGRATEL PERU S.A.A., PE 22884 1102 73 381 AS22884 - TOTAL PLAY TELECOMUNICACIONES, 27715 1079 75 54 AS27715 - Locaweb Servicos de Internet S/ 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 1972 481 26 Vodafone Data - Vodafone Data, EG 36992 1940 1543 326 ETISALAT MISR - ETISALAT MISR, EG 24863 1460 389 20 Link Egypt (Link.NET) - Link Egypt (Link. 36903 1389 606 122 Office National des Postes et Telecommuni 36935 1295 523 49 Vodafone Data - Vodafone Data, EG 37069 1128 1100 11 The Egyptian Company for Mobile Services 29571 1086 70 18 Orange Côte d'Ivoire - Orange Côte d'Iv 15399 806 57 60 Wananchi Group (Kenya) Limited - Wananchi 20011 719 172 287 Dimension Data - Dimension Data, ZA 36873 545 141 39 Airtel Networks Limited - Airtel Networks 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 17383 42609 5648 AMAZON-02 - Amazon.com, Inc., US 9808 14009 8737 135 CHINAMOBILE-CN - China Mobile Communicati 8151 13307 3300 614 AS8151 - UNINET, MX 12479 6891 1709 149 UNI2-AS - Orange Espagne SA, ES 9498 5116 560 333 BBIL-AP - BHARTI Airtel Ltd., IN 39891 5044 311 77 ALJAWWALSTC-AS - Saudi Telecom Company JS 22773 4914 3311 466 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 7545 4645 842 279 TPG-INTERNET-AP - TPG Telecom Limited, AU 11492 4632 308 1099 CABLEONE - CABLE ONE, INC., US 9009 4342 388 2648 M247 - M247 Europe SRL, RO 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 14009 13874 CHINAMOBILE-CN - China Mobile Communications Gr 8151 13307 12693 AS8151 - UNINET, MX 12479 6891 6742 UNI2-AS - Orange Espagne SA, ES 39891 5044 4967 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 9498 5116 4783 BBIL-AP - BHARTI Airtel Ltd., IN 22773 4914 4448 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7545 4645 4366 TPG-INTERNET-AP - TPG Telecom Limited, AU 7155 4337 4250 VIASAT-SP-BACKBONE - ViaSat,Inc., US 7552 4099 4075 VIETEL-AS-AP - Viettel Group, VN 6327 3842 3767 SHAW - Shaw Communications, CA 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 4593 UNALLOCATED 2.26.176.0/24 10122 NETSTAR-AS-AP - NETSTAR 4593 UNALLOCATED 2.26.216.0/24 10122 NETSTAR-AS-AP - NETSTAR 4593 UNALLOCATED 2.26.219.0/24 10122 NETSTAR-AS-AP - NETSTAR 394928 UNALLOCATED 8.2.70.0/24 3356 LEVEL3 - Level 3 Parent 23338 UNALLOCATED 8.14.84.0/22 33667 CMCS - Comcast Cable Co 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 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: 394625 WHITELABELIT - WhiteLabel IT Solutions C 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, 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 /13:589 /14:1192 /15:2132 /16:13737 /17:8290 /18:13277 /19:25519 /20:45173 /21:53512 /22:114034 /23:110925 /24:683642 /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 7459 13307 AS8151 - UNINET, MX 12479 5806 6891 UNI2-AS - Orange Espagne SA, ES 39891 3727 5044 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 6327 3605 3842 SHAW - Shaw Communications, CA 11492 3509 4632 CABLEONE - CABLE ONE, INC., US 16509 3376 17383 AMAZON-02 - Amazon.com, Inc., US 7155 3268 4337 VIASAT-SP-BACKBONE - ViaSat,Inc., US 22773 3125 4914 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 10620 2233 3398 AS10620 - Telmex Colombia S.A., CO 30036 2179 2525 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) ---------------------------------------------- 1:2024 2:2981 3:1336 4:6 5:5499 6:220 7:6 8:1344 9:517 11:172 12:1077 13:1332 14:2708 15:487 16:386 17:473 18:1116 20:619 21:4 22:188 23:8664 24:2819 25:2 27:2940 28:7 29:19 31:3983 32:33 34:94 35:310 36:4926 37:4462 38:10555 39:1448 40:455 41:4614 42:1049 43:3512 44:535 45:19739 46:5047 47:459 48:171 49:2349 50:2027 51:1087 52:1434 54:468 55:1160 56:11 57:347 58:2284 59:1365 60:1185 61:3302 62:3192 63:1676 64:6722 65:2262 66:6272 67:3345 68:1356 69:4076 70:1078 71:604 72:3296 74:3152 75:1743 76:592 77:2956 78:2178 79:2083 80:2424 81:2307 82:4389 83:1517 84:2162 85:3926 86:1142 87:3003 88:1360 89:4971 90:780 91:8534 92:2800 93:3061 94:4704 95:4786 96:1454 97:302 98:957 99:1155 100:65 101:1377 102:4787 103:32429 104:5818 105:969 106:972 107:3017 108:1447 109:4081 110:2229 111:4212 112:3226 113:1680 114:2628 115:2327 116:2073 117:3899 118:2601 119:2073 120:2830 121:2016 122:3064 123:2229 124:1683 125:2987 126:175 128:1627 129:1016 130:1782 131:2642 132:948 133:490 134:1850 135:676 136:1585 137:1625 138:3456 139:1832 140:1893 141:2031 142:2756 143:2395 144:1939 145:710 146:2257 147:2415 148:2892 149:3598 150:1496 151:3176 152:2517 153:2313 154:8009 155:2412 156:3558 157:2497 158:1665 159:3000 160:4206 161:2106 162:4275 163:2801 164:2499 165:2820 166:1267 167:2404 168:4286 169:994 170:5612 171:1136 172:4956 173:3482 174:890 175:1437 176:4127 177:5887 178:4654 179:2949 180:3360 181:4765 182:4147 183:2664 184:2204 185:22041 186:6590 187:6155 188:4975 189:5081 190:10036 191:2127 192:12062 193:9631 194:7966 195:6013 196:3532 197:3453 198:6512 199:6185 200:8522 201:7017 202:10620 203:10656 204:4840 205:3797 206:4542 207:4047 208:4347 209:5527 210:4693 211:2737 212:5232 213:4145 214:1033 215:58 216:7327 217:3940 218:1926 219:412 220:2229 221:1435 222:977 223:3670 End of report