IPv4 R&E Routing Table Report 21:35 GMT Wed 13 May, 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: 1045786 Prefixes after maximum aggregation (per Origin AS): 401744 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 517197 Number of IPv4 prefixes with a valid ROA: 645144 Number of IPv4 prefixes with an invalid ROA: 258 Number of IPv4 prefixes with no ROA: 400384 Total ASes present in the Internet Routing Table: 78519 Prefixes per ASN: 13.32 Origin-only ASes present in the Internet Routing Table: 67244 Origin ASes announcing only one prefix: 27428 Transit ASes present in the Internet Routing Table: 11275 Transit-only ASes present in the Internet Routing Table: 588 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: 1255 Number of instances of unregistered ASNs: 1285 Number of 32-bit ASNs allocated by the RIRs: 49733 Number of 32-bit ASNs visible in the Routing Table: 40611 Prefixes from 32-bit ASNs in the Routing Table: 229895 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: 440 Number of addresses announced to Internet: 3103239424 Equivalent to 184 /8s, 247 /16s and 173 /24s Percentage of available address space announced: 83.8 Percentage of allocated address space announced: 83.8 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: 342472 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 283657 Total APNIC prefixes after maximum aggregation: 82998 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 270263 Unique aggregates announced from the APNIC address blocks: 107980 APNIC Region origin ASes present in the Internet Routing Table: 15195 APNIC Prefixes per ASN: 17.79 APNIC Region origin ASes announcing only one prefix: 4651 APNIC Region transit ASes present in the Internet Routing Table: 2059 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: 10776 Number of APNIC addresses announced to Internet: 747619840 Equivalent to 44 /8s, 143 /16s and 198 /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: 303202 Total ARIN prefixes after maximum aggregation: 136535 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 302652 Unique aggregates announced from the ARIN address blocks: 147670 ARIN Region origin ASes present in the Internet Routing Table: 19428 ARIN Prefixes per ASN: 15.58 ARIN Region origin ASes announcing only one prefix: 7109 ARIN Region transit ASes present in the Internet Routing Table: 1966 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: 5578 Number of ARIN addresses announced to Internet: 1347585024 Equivalent to 80 /8s, 82 /16s and 132 /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: 290780 Total RIPE prefixes after maximum aggregation: 143574 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 293913 Unique aggregates announced from the RIPE address blocks: 191539 RIPE Region origin ASes present in the Internet Routing Table: 29493 RIPE Prefixes per ASN: 9.97 RIPE Region origin ASes announcing only one prefix: 12211 RIPE Region transit ASes present in the Internet Routing Table: 4067 Average RIPE Region AS path length visible: 5.4 Max RIPE Region AS path length visible: 38 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13425 Number of RIPE addresses announced to Internet: 733757952 Equivalent to 43 /8s, 188 /16s and 66 /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: 129795 Total LACNIC prefixes after maximum aggregation: 30826 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 124212 Unique aggregates announced from the LACNIC address blocks: 50251 LACNIC Region origin ASes present in the Internet Routing Table: 11396 LACNIC Prefixes per ASN: 10.90 LACNIC Region origin ASes announcing only one prefix: 2722 LACNIC Region transit ASes present in the Internet Routing Table: 2598 Average LACNIC Region AS path length visible: 6.3 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9440 Number of LACNIC addresses announced to Internet: 169684480 Equivalent to 10 /8s, 29 /16s and 46 /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: 37097 Total AfriNIC prefixes after maximum aggregation: 7056 AfriNIC Deaggregation factor: 5.26 Prefixes being announced from the AfriNIC address blocks: 54305 Unique aggregates announced from the AfriNIC address blocks: 19377 AfriNIC Region origin ASes present in the Internet Routing Table: 2027 AfriNIC Prefixes per ASN: 26.79 AfriNIC Region origin ASes announcing only one prefix: 735 AfriNIC Region transit ASes present in the Internet Routing Table: 391 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 63 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1392 Number of AfriNIC addresses announced to Internet: 104394240 Equivalent to 6 /8s, 56 /16s and 238 /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 13888 8761 121 CHINAMOBILE-CN China Mobile Communication 7545 5884 826 482 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4934 551 327 BBIL-AP BHARTI Airtel Ltd., IN 18403 4544 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4063 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3693 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3534 887 177 CMNET-JIANGSU-AP China Mobile communicati 17561 3472 218 607 LCS-AS-AP LARUS Limited, HK 45899 3361 1868 98 VNPT-AS-VN VNPT Corp, VN 24560 2765 762 733 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 14907 41325 5691 AMAZON-02 - Amazon.com, Inc., US 22773 4788 3115 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4612 306 1082 CABLEONE - CABLE ONE, INC., US 7155 3870 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3717 1305 75 SHAW - Shaw Communications, CA 396982 3338 4865 507 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3139 54728 2390 DNIC-AS-00749 - United States Department 36352 2912 222 913 AS-COLOCROSSING - HostPapa, US 7029 2637 2558 895 WINDSTREAM - Windstream Communications LL 30036 2607 358 464 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 7156 1711 149 UNI2-AS, ES 39891 4975 307 72 ALJAWWALSTC-AS, SA 20940 3917 3389 110 AKAMAI-ASN1, NL 9009 3916 360 2321 M247, RO 12389 3140 2321 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2788 204 2059 CDNEXT, GB 34984 2491 367 584 TELLCOM-AS, TR 8452 1665 1852 14 TE-AS TE-AS, EG 203020 1655 252 831 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 12735 3252 635 UNINET, MX 10620 3434 450 1103 Telmex Colombia S.A., CO 13999 2402 504 348 Mega Cable, S.A. de C.V., MX 11830 1935 369 65 Instituto Costarricense de Electricidad y 11664 1450 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1374 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1228 371 22 INTEGRATEL PERU S.A.A., PE 22884 1073 70 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1073 2392 100 TIM SA, 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 36992 1860 1532 340 ETISALAT-MISR, EG 24835 1807 649 36 RAYA-AS, EG 24863 1269 389 16 LINKdotNET-AS, EG 36935 1251 523 45 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1116 1100 11 MOBINIL, EG 29571 1077 70 18 ORANGE-COTE-IVOIRE, CI 20011 643 173 262 NTT-DATA-Inc, ZA 328608 614 56 161 Africa-on-Cloud-AS, ZA 3741 553 724 322 NTT-DATA-Inc, ZA 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 14907 41325 5691 AMAZON-02 - Amazon.com, Inc., US 9808 13888 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12735 3252 635 UNINET, MX 12479 7156 1711 149 UNI2-AS, ES 7545 5884 826 482 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 307 72 ALJAWWALSTC-AS, SA 9498 4934 551 327 BBIL-AP BHARTI Airtel Ltd., IN 22773 4788 3115 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4612 306 1082 CABLEONE - CABLE ONE, INC., US 18403 4544 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 13888 13767 CHINAMOBILE-CN China Mobile Communications Grou 8151 12735 12100 UNINET, MX 12479 7156 7007 UNI2-AS, ES 7545 5884 5402 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 4903 ALJAWWALSTC-AS, SA 9498 4934 4607 BBIL-AP BHARTI Airtel Ltd., IN 18403 4544 4519 FPT-AS-AP FPT Telecom Company, VN 22773 4788 4423 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4063 4035 VIETEL-AS-AP Viettel Group, VN 20940 3917 3807 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 46198 UNALLOCATED 8.10.6.0/24 23520 LIBERTY-NETWORKS - Colu 46198 UNALLOCATED 8.10.7.0/24 23520 LIBERTY-NETWORKS - Colu 395729 UNALLOCATED 8.28.58.0/24 32787 PROLEXIC-TECHNOLOGIES-D 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 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 400273 UNALLOCATED 8.41.137.0/24 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 Complete listing at https://bgp.nsrc.org/REN/USP/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.130.204.0/24 Origin: 18807 COMM-WIRELESS-N - Community Wireless, ZZ 23.130.204.0/24 Transit: 10796 TWC-10796-MIDWEST - Charter Communicatio 23.131.100.0/24 Origin: 401541 OSIE - Osie, ZZ 23.131.100.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure 23.131.156.0/24 Origin: 401541 OSIE - Osie, ZZ 23.131.156.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure 23.131.212.0/24 Origin: 401541 OSIE - Osie, ZZ 23.131.212.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure 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 /11:95 /12:297 /13:584 /14:1193 /15:2110 /16:13602 /17:8305 /18:13366 /19:25488 /20:45777 /21:52369 /22:113356 /23:108222 /24:660952 /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 6956 12735 UNINET, MX 12479 6093 7156 UNI2-AS, ES 39891 3660 4975 ALJAWWALSTC-AS, SA 6327 3498 3717 SHAW - Shaw Communications, CA 11492 3488 4612 CABLEONE - CABLE ONE, INC., US 22773 3064 4788 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2825 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2710 14907 AMAZON-02 - Amazon.com, Inc., US 30036 2261 2607 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2238 3434 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) ---------------------------------------------- 1:2505 2:2067 3:993 4:5 5:5108 6:201 7:6 8:1471 9:59 11:172 12:1156 13:692 14:2704 15:465 16:208 17:443 18:914 20:608 21:4 22:188 23:8376 24:2773 25:2 27:2822 28:1 29:19 31:3531 32:36 34:87 35:284 36:4769 37:4444 38:9661 39:1296 40:438 41:4579 42:2164 43:3148 44:453 45:19806 46:4881 47:414 48:129 49:2233 50:2010 51:717 52:1325 54:283 55:1016 56:11 57:323 58:2339 59:1371 60:1175 61:3155 62:3134 63:1691 64:6381 65:2149 66:6137 67:3268 68:1505 69:4219 70:1054 71:616 72:3184 74:3066 75:1501 76:600 77:2946 78:2051 79:1791 80:2350 81:2244 82:4178 83:1459 84:2153 85:3841 86:1097 87:2497 88:1337 89:4775 90:808 91:8469 92:2787 93:3041 94:4406 95:4744 96:1444 97:309 98:948 99:835 100:71 101:1463 102:4552 103:32477 104:5372 105:863 106:899 107:2947 108:1272 109:4258 110:2282 111:4120 112:3180 113:1991 114:2382 115:2327 116:2122 117:3486 118:3045 119:2038 120:2721 121:1557 122:3012 123:2308 124:1655 125:2987 126:158 128:1606 129:978 130:1677 131:2429 132:883 133:486 134:1696 135:610 136:1481 137:1559 138:3402 139:1629 140:1829 141:1746 142:2576 143:2051 144:1786 145:638 146:2196 147:2262 148:2806 149:3124 150:1369 151:2903 152:2341 153:1625 154:9521 155:2303 156:5015 157:2341 158:1580 159:2872 160:3818 161:1967 162:4077 163:2578 164:2422 165:2674 166:1282 167:2321 168:4033 169:862 170:5621 171:1140 172:4799 173:3456 174:893 175:1357 176:3954 177:5022 178:4402 179:2379 180:3058 181:4571 182:4038 183:2839 184:2004 185:21936 186:6171 187:5065 188:4581 189:4537 190:9835 191:1984 192:11533 193:9642 194:7885 195:5839 196:3392 197:3215 198:6280 199:6051 200:8284 201:6371 202:10694 203:10667 204:4811 205:3735 206:4456 207:3991 208:4369 209:5477 210:4743 211:2688 212:5090 213:4139 214:1040 215:47 216:7295 217:3623 218:1709 219:413 220:2187 221:1319 222:934 223:3437 End of report