IPv4 R&E Routing Table Report 21:35 GMT Wed 07 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: 1073276 Prefixes after maximum aggregation (per Origin AS): 415138 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 536175 Number of IPv4 prefixes with a valid ROA: 754479 Number of IPv4 prefixes with an invalid ROA: 177 Number of IPv4 prefixes with no ROA: 318620 Total ASes present in the Internet Routing Table: 79467 Prefixes per ASN: 13.51 Origin-only ASes present in the Internet Routing Table: 68018 Origin ASes announcing only one prefix: 27898 Transit ASes present in the Internet Routing Table: 11449 Transit-only ASes present in the Internet Routing Table: 626 Paths with bogon ASNs present in the IPv4 Routing Table: 372 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 93 Max AS path prepend of ASN (152107) 90 Prefixes from unregistered ASNs in the Routing Table: 1348 Number of instances of unregistered ASNs: 1371 Number of 32-bit ASNs allocated by the RIRs: 51522 Number of 32-bit ASNs visible in the Routing Table: 41847 Prefixes from 32-bit ASNs in the Routing Table: 242715 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: 576 Number of addresses announced to Internet: 3125926400 Equivalent to 186 /8s, 81 /16s and 218 /24s Percentage of available address space announced: 84.4 Percentage of allocated address space announced: 84.4 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: 355164 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 284904 Total APNIC prefixes after maximum aggregation: 85608 APNIC Deaggregation factor: 3.33 Prefixes being announced from the APNIC address blocks: 272599 Unique aggregates announced from the APNIC address blocks: 110914 APNIC Region origin ASes present in the Internet Routing Table: 15409 APNIC Prefixes per ASN: 17.69 APNIC Region origin ASes announcing only one prefix: 4791 APNIC Region transit ASes present in the Internet Routing Table: 2046 Average APNIC Region AS path length visible: 5.4 Max APNIC Region AS path length visible: 93 Number of APNIC region 32-bit ASNs visible in the Routing Table: 11014 Number of APNIC addresses announced to Internet: 748947712 Equivalent to 44 /8s, 164 /16s and 9 /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: 316450 Total ARIN prefixes after maximum aggregation: 140371 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 313492 Unique aggregates announced from the ARIN address blocks: 153584 ARIN Region origin ASes present in the Internet Routing Table: 19516 ARIN Prefixes per ASN: 16.06 ARIN Region origin ASes announcing only one prefix: 7198 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: 5819 Number of ARIN addresses announced to Internet: 1355225600 Equivalent to 80 /8s, 199 /16s and 26 /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: 299887 Total RIPE prefixes after maximum aggregation: 149518 RIPE Deaggregation factor: 2.01 Prefixes being announced from the RIPE address blocks: 306292 Unique aggregates announced from the RIPE address blocks: 200998 RIPE Region origin ASes present in the Internet Routing Table: 29893 RIPE Prefixes per ASN: 10.25 RIPE Region origin ASes announcing only one prefix: 12372 RIPE Region transit ASes present in the Internet Routing Table: 4178 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 49 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13964 Number of RIPE addresses announced to Internet: 750340608 Equivalent to 44 /8s, 185 /16s and 74 /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: 132170 Total LACNIC prefixes after maximum aggregation: 31747 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 125865 Unique aggregates announced from the LACNIC address blocks: 51524 LACNIC Region origin ASes present in the Internet Routing Table: 11513 LACNIC Prefixes per ASN: 10.93 LACNIC Region origin ASes announcing only one prefix: 2765 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: 39 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9593 Number of LACNIC addresses announced to Internet: 167389952 Equivalent to 9 /8s, 250 /16s and 43 /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: 38517 Total AfriNIC prefixes after maximum aggregation: 7109 AfriNIC Deaggregation factor: 5.42 Prefixes being announced from the AfriNIC address blocks: 54451 Unique aggregates announced from the AfriNIC address blocks: 18673 AfriNIC Region origin ASes present in the Internet Routing Table: 2093 AfriNIC Prefixes per ASN: 26.02 AfriNIC Region origin ASes announcing only one prefix: 772 AfriNIC Region transit ASes present in the Internet Routing Table: 389 Average AfriNIC Region AS path length visible: 6.2 Max AfriNIC Region AS path length visible: 54 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1457 Number of AfriNIC addresses announced to Internet: 103714816 Equivalent to 6 /8s, 46 /16s and 144 /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 14068 8737 135 CHINAMOBILE-CN - China Mobile Communicati 9498 5105 560 328 BBIL-AP - BHARTI Airtel Ltd., IN 7545 4642 833 276 TPG-INTERNET-AP - TPG Telecom Limited, AU 7552 4081 1331 24 VIETEL-AS-AP - Viettel Group, VN 56046 3613 886 179 CMNET-Jiangsu-AP - China Mobile communica 7713 3441 1044 70 telkomnet-as-ap - PT Telekomunikasi Indon 45899 3382 1868 97 VNPT-AS-VN - VNPT Corp, VN 140292 3079 315 1815 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK - 24560 2384 538 663 AIRTELBROADBAND-AS-AP - Bharti Airtel Ltd 4755 2275 428 193 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 19237 42592 5623 AMAZON-02 - Amazon.com, Inc., US 22773 4913 3324 456 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4628 307 1092 CABLEONE - CABLE ONE, INC., US 7155 4337 286 87 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3836 1305 73 SHAW - Shaw Communications, CA 396982 3540 5380 595 GOOGLE-CLOUD-PLATFORM - Google LLC, US 36352 3253 242 1157 AS-COLOCROSSING - HostPapa, US 749 3133 54647 2384 DNIC-AS-00749 - United States Department 7029 2872 2572 918 WINDSTREAM - Windstream Communications LL 31898 2801 1387 1170 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 6940 1709 149 UNI2-AS - Orange Espagne SA, ES 39891 4976 307 73 ALJAWWALSTC-AS - Saudi Telecom Company JS 9009 4368 390 2666 M247 - M247 Europe SRL, RO 20940 3810 3388 106 AKAMAI-ASN1 - Akamai International B.V., 212238 3641 262 2766 CDNEXT - Datacamp Limited, GB 12389 3124 2330 870 ROSTELECOM-AS - PJSC Rostelecom, RU 29355 2523 155 28 KCELL-AS - Kcell JSC, KZ 34984 2522 371 601 TELLCOM-AS - Superonline Iletisim Hizmetl 3257 1736 2082 975 GTT-BACKBONE - GTT Communications Inc., U 8452 1717 1852 14 TE-AS - IDDQD-AS, EG 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 13257 3296 616 AS8151 - UNINET, MX 10620 3398 442 1121 AS10620 - Telmex Colombia S.A., CO 13999 2224 493 324 AS13999 - Mega Cable, S.A. de C.V., MX 11830 1862 369 65 AS11830 - Instituto Costarricense de Elec 11664 1507 277 34 AS11664 - Techtel LMDS Comunicaciones Int 28573 1383 2433 268 AS28573 - Claro NXT Telecomunicacoes Ltda 3816 1267 762 225 AS3816 - COLOMBIA TELECOMUNICACIONES S.A. 6147 1178 371 21 AS6147 - INTEGRATEL PERU S.A.A., PE 22884 1099 73 379 AS22884 - TOTAL PLAY TELECOMUNICACIONES, 27715 1078 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 1943 1543 326 ETISALAT MISR - ETISALAT MISR, EG 24863 1457 389 20 Link Egypt (Link.NET) - Link Egypt (Link. 36903 1352 588 110 Office National des Postes et Telecommuni 36935 1303 524 47 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 562 162 174 Dimension Data - Dimension Data, ZA 36914 547 82 3 Kenya Education Network - Kenya Education 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 19237 42592 5623 AMAZON-02 - Amazon.com, Inc., US 9808 14068 8737 135 CHINAMOBILE-CN - China Mobile Communicati 8151 13257 3296 616 AS8151 - UNINET, MX 12479 6940 1709 149 UNI2-AS - Orange Espagne SA, ES 9498 5105 560 328 BBIL-AP - BHARTI Airtel Ltd., IN 39891 4976 307 73 ALJAWWALSTC-AS - Saudi Telecom Company JS 22773 4913 3324 456 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 7545 4642 833 276 TPG-INTERNET-AP - TPG Telecom Limited, AU 11492 4628 307 1092 CABLEONE - CABLE ONE, INC., US 9009 4368 390 2666 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 14068 13933 CHINAMOBILE-CN - China Mobile Communications Gr 8151 13257 12641 AS8151 - UNINET, MX 12479 6940 6791 UNI2-AS - Orange Espagne SA, ES 39891 4976 4903 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 9498 5105 4777 BBIL-AP - BHARTI Airtel Ltd., IN 22773 4913 4457 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7545 4642 4366 TPG-INTERNET-AP - TPG Telecom Limited, AU 7155 4337 4250 VIASAT-SP-BACKBONE - ViaSat,Inc., US 7552 4081 4057 VIETEL-AS-AP - Viettel Group, VN 6327 3836 3763 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 218482 UNALLOCATED 2.152.86.0/24 212477 ROYALE-AS - RoyaleHosti 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 Complete listing at https://bgp.nsrc.org/REN/USP/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.130.96.0/24 Origin: 21699 IO - IO INC, US 23.130.96.0/24 Transit: 30058 FDCSERVERS - FDCservers.net, US 23.130.97.0/24 Origin: 21699 IO - IO INC, US 23.130.97.0/24 Transit: 30058 FDCSERVERS - FDCservers.net, US 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 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 /14:1190 /15:2134 /16:13734 /17:8282 /18:13283 /19:25511 /20:45231 /21:53225 /22:113545 /23:110643 /24:685443 /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 7414 13257 AS8151 - UNINET, MX 12479 5859 6940 UNI2-AS - Orange Espagne SA, ES 16509 3741 19237 AMAZON-02 - Amazon.com, Inc., US 39891 3661 4976 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 6327 3602 3836 SHAW - Shaw Communications, CA 11492 3511 4628 CABLEONE - CABLE ONE, INC., US 7155 3268 4337 VIASAT-SP-BACKBONE - ViaSat,Inc., US 22773 3134 4913 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 10620 2233 3398 AS10620 - Telmex Colombia S.A., CO 30036 2195 2541 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) ---------------------------------------------- 1:2025 2:2904 3:2049 4:6 5:5493 6:211 7:6 8:1497 9:274 11:172 12:1082 13:1496 14:2714 15:487 16:303 17:470 18:2097 20:619 21:4 22:188 23:8605 24:2816 25:2 27:2943 28:8 29:19 31:3966 32:33 34:94 35:294 36:4897 37:4452 38:10528 39:1444 40:451 41:4623 42:1045 43:3455 44:530 45:19930 46:4976 47:459 48:171 49:2323 50:2035 51:1041 52:1538 54:481 55:1169 56:11 57:331 58:2674 59:1486 60:1196 61:3230 62:3183 63:1680 64:6727 65:2282 66:6296 67:3328 68:1346 69:4130 70:1086 71:613 72:3301 74:3150 75:1756 76:592 77:2908 78:2153 79:1965 80:2393 81:2295 82:4431 83:1522 84:2174 85:3922 86:1153 87:2983 88:1367 89:4953 90:777 91:8534 92:2784 93:3055 94:4658 95:4764 96:1461 97:304 98:963 99:1181 100:65 101:1372 102:4758 103:32382 104:5787 105:965 106:967 107:3007 108:1874 109:3999 110:2233 111:4229 112:3251 113:1693 114:2618 115:2328 116:2080 117:3878 118:2607 119:2067 120:2857 121:1822 122:3074 123:2223 124:1938 125:2974 126:175 128:1622 129:1004 130:1783 131:2624 132:955 133:483 134:1826 135:677 136:1584 137:1617 138:3432 139:1839 140:1882 141:1896 142:2733 143:2386 144:1931 145:702 146:2262 147:2393 148:2879 149:3601 150:1477 151:3176 152:2486 153:2271 154:9095 155:2387 156:4209 157:2497 158:1658 159:2984 160:4172 161:2140 162:4247 163:2804 164:2477 165:2800 166:1258 167:2417 168:4280 169:983 170:5592 171:1138 172:4967 173:3489 174:894 175:1427 176:4061 177:5633 178:4669 179:2851 180:3347 181:4699 182:4085 183:2673 184:2207 185:22055 186:6617 187:6030 188:4859 189:5005 190:9950 191:1995 192:11975 193:9634 194:7971 195:6020 196:3480 197:3290 198:6473 199:6181 200:8482 201:6961 202:10571 203:10681 204:4776 205:3786 206:4509 207:4052 208:4358 209:5537 210:4689 211:2729 212:5267 213:4139 214:1042 215:50 216:7331 217:3907 218:1928 219:411 220:2245 221:1441 222:980 223:3629 End of report