IPv4 R&E Routing Table Report 21:35 GMT Sun 13 Sep, 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: 1071863 Prefixes after maximum aggregation (per Origin AS): 413046 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 532414 Number of IPv4 prefixes with a valid ROA: 746047 Number of IPv4 prefixes with an invalid ROA: 186 Number of IPv4 prefixes with no ROA: 325630 Total ASes present in the Internet Routing Table: 79308 Prefixes per ASN: 13.52 Origin-only ASes present in the Internet Routing Table: 67861 Origin ASes announcing only one prefix: 27764 Transit ASes present in the Internet Routing Table: 11447 Transit-only ASes present in the Internet Routing Table: 613 Paths with bogon ASNs present in the IPv4 Routing Table: 344 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 54 Max AS path prepend of ASN ( 37447) 50 Prefixes from unregistered ASNs in the Routing Table: 1442 Number of instances of unregistered ASNs: 1459 Number of 32-bit ASNs allocated by the RIRs: 51211 Number of 32-bit ASNs visible in the Routing Table: 41627 Prefixes from 32-bit ASNs in the Routing Table: 240839 Number of bogon 32-bit ASNs visible in the Routing Table: 50 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 516 Number of addresses announced to Internet: 3125404928 Equivalent to 186 /8s, 73 /16s and 229 /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: 353023 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 289679 Total APNIC prefixes after maximum aggregation: 85879 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 276975 Unique aggregates announced from the APNIC address blocks: 110488 APNIC Region origin ASes present in the Internet Routing Table: 15361 APNIC Prefixes per ASN: 18.03 APNIC Region origin ASes announcing only one prefix: 4741 APNIC Region transit ASes present in the Internet Routing Table: 2052 Average APNIC Region AS path length visible: 5.1 Max APNIC Region AS path length visible: 40 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10963 Number of APNIC addresses announced to Internet: 748664064 Equivalent to 44 /8s, 159 /16s and 181 /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: 312359 Total ARIN prefixes after maximum aggregation: 139127 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 310539 Unique aggregates announced from the ARIN address blocks: 152195 ARIN Region origin ASes present in the Internet Routing Table: 19482 ARIN Prefixes per ASN: 15.94 ARIN Region origin ASes announcing only one prefix: 7150 ARIN Region transit ASes present in the Internet Routing Table: 1980 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: 5772 Number of ARIN addresses announced to Internet: 1355526400 Equivalent to 80 /8s, 203 /16s and 177 /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: 298687 Total RIPE prefixes after maximum aggregation: 148573 RIPE Deaggregation factor: 2.01 Prefixes being announced from the RIPE address blocks: 304262 Unique aggregates announced from the RIPE address blocks: 199125 RIPE Region origin ASes present in the Internet Routing Table: 29841 RIPE Prefixes per ASN: 10.20 RIPE Region origin ASes announcing only one prefix: 12338 RIPE Region transit ASes present in the Internet Routing Table: 4166 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: 13868 Number of RIPE addresses announced to Internet: 749528064 Equivalent to 44 /8s, 172 /16s and 228 /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: 131604 Total LACNIC prefixes after maximum aggregation: 31611 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 125632 Unique aggregates announced from the LACNIC address blocks: 51459 LACNIC Region origin ASes present in the Internet Routing Table: 11503 LACNIC Prefixes per ASN: 10.92 LACNIC Region origin ASes announcing only one prefix: 2775 LACNIC Region transit ASes present in the Internet Routing Table: 2663 Average LACNIC Region AS path length visible: 6.1 Max LACNIC Region AS path length visible: 39 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9580 Number of LACNIC addresses announced to Internet: 167561984 Equivalent to 9 /8s, 252 /16s and 203 /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: 38092 Total AfriNIC prefixes after maximum aggregation: 7028 AfriNIC Deaggregation factor: 5.42 Prefixes being announced from the AfriNIC address blocks: 53938 Unique aggregates announced from the AfriNIC address blocks: 18721 AfriNIC Region origin ASes present in the Internet Routing Table: 2080 AfriNIC Prefixes per ASN: 25.93 AfriNIC Region origin ASes announcing only one prefix: 760 AfriNIC Region transit ASes present in the Internet Routing Table: 380 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: 1444 Number of AfriNIC addresses announced to Internet: 103863296 Equivalent to 6 /8s, 48 /16s and 212 /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 14037 8735 127 CHINAMOBILE-CN - China Mobile Communicati 9498 5106 561 345 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4655 347 24 FPT-VN - FPT Telecom Company, VN 7545 4637 831 275 TPG-INTERNET-AP - TPG Telecom Limited, AU 7552 4073 1331 24 VIETEL-AS-AP - Viettel Group, VN 56046 3621 886 179 CMNET-Jiangsu-AP - China Mobile communica 7713 3515 1043 69 telkomnet-as-ap - PT Telekomunikasi Indon 45899 3390 1868 97 VNPT-AS-VN - VNPT Corp, VN 140292 3073 315 1805 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK - 24560 2477 589 700 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 17459 42646 5606 AMAZON-02 - Amazon.com, Inc., US 22773 4851 3136 413 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4611 306 1125 CABLEONE - CABLE ONE, INC., US 7155 4338 286 87 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3819 1305 74 SHAW - Shaw Communications, CA 396982 3503 5379 590 GOOGLE-CLOUD-PLATFORM - Google LLC, US 36352 3219 240 1145 AS-COLOCROSSING - HostPapa, US 749 3133 54663 2384 DNIC-AS-00749 - United States Department 7029 2800 2550 893 WINDSTREAM - Windstream Communications LL 31898 2756 1370 1147 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 6971 1709 149 UNI2-AS - Orange Espagne SA, ES 39891 4907 302 76 ALJAWWALSTC-AS - Saudi Telecom Company JS 9009 4205 374 2556 M247 - M247 Europe SRL, RO 20940 3811 3388 106 AKAMAI-ASN1 - Akamai International B.V., 212238 3591 260 2714 CDNEXT - Datacamp Limited, GB 12389 3123 2330 867 ROSTELECOM-AS - PJSC Rostelecom, RU 34984 2528 371 597 TELLCOM-AS - Superonline Iletisim Hizmetl 29355 2524 155 28 KCELL-AS - Kcell JSC, KZ 44559 1782 111 918 ITHOSTLINE - IT HOSTLINE LTD, CY 8452 1670 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 13177 3305 611 AS8151 - UNINET, MX 10620 3409 443 1116 AS10620 - Telmex Colombia S.A., CO 13999 2235 495 327 AS13999 - Mega Cable, S.A. de C.V., MX 11830 1875 369 65 AS11830 - Instituto Costarricense de Elec 11664 1507 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 1197 371 21 AS6147 - INTEGRATEL PERU S.A.A., PE 22884 1098 70 383 AS22884 - TOTAL PLAY TELECOMUNICACIONES, 27715 1077 75 53 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 1979 509 28 Vodafone Data - Vodafone Data, EG 36992 1939 1543 328 ETISALAT MISR - ETISALAT MISR, EG 24863 1464 389 16 Link Egypt (Link.NET) - Link Egypt (Link. 36903 1353 589 106 Office National des Postes et Telecommuni 36935 1286 523 49 Vodafone Data - Vodafone Data, EG 37069 1127 1100 11 The Egyptian Company for Mobile Services 29571 1086 70 18 Orange Côte d'Ivoire - Orange Côte d'Iv 15399 591 57 62 Wananchi Group (Kenya) Limited - Wananchi 20011 551 160 174 Dimension Data - Dimension Data, ZA 36914 542 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 17459 42646 5606 AMAZON-02 - Amazon.com, Inc., US 9808 14037 8735 127 CHINAMOBILE-CN - China Mobile Communicati 8151 13177 3305 611 AS8151 - UNINET, MX 12479 6971 1709 149 UNI2-AS - Orange Espagne SA, ES 9498 5106 561 345 BBIL-AP - BHARTI Airtel Ltd., IN 39891 4907 302 76 ALJAWWALSTC-AS - Saudi Telecom Company JS 22773 4851 3136 413 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 18403 4655 347 24 FPT-VN - FPT Telecom Company, VN 7545 4637 831 275 TPG-INTERNET-AP - TPG Telecom Limited, AU 11492 4611 306 1125 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 14037 13910 CHINAMOBILE-CN - China Mobile Communications Gr 8151 13177 12566 AS8151 - UNINET, MX 12479 6971 6822 UNI2-AS - Orange Espagne SA, ES 39891 4907 4831 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 9498 5106 4761 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4655 4631 FPT-VN - FPT Telecom Company, VN 22773 4851 4438 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7545 4637 4362 TPG-INTERNET-AP - TPG Telecom Limited, AU 7155 4338 4251 VIASAT-SP-BACKBONE - ViaSat,Inc., US 7552 4073 4049 VIETEL-AS-AP - Viettel Group, VN 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 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 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 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: 32217 GPIEX - GPIEX INC, US 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 /12:298 /13:592 /14:1194 /15:2144 /16:13751 /17:8302 /18:13303 /19:25527 /20:45608 /21:53482 /22:113407 /23:110685 /24:683403 /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 7343 13177 AS8151 - UNINET, MX 12479 5890 6971 UNI2-AS - Orange Espagne SA, ES 39891 3656 4907 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 6327 3584 3819 SHAW - Shaw Communications, CA 11492 3520 4611 CABLEONE - CABLE ONE, INC., US 16509 3350 17459 AMAZON-02 - Amazon.com, Inc., US 7155 3269 4338 VIASAT-SP-BACKBONE - ViaSat,Inc., US 22773 3109 4851 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 10620 2244 3409 AS10620 - Telmex Colombia S.A., CO 30036 2192 2540 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) ---------------------------------------------- 1:2701 2:2897 3:1552 4:5 5:5483 6:215 7:6 8:1345 9:110 11:172 12:1094 13:1247 14:2695 15:490 16:281 17:464 18:1425 20:619 21:4 22:188 23:8579 24:2800 25:2 27:2944 28:7 29:19 31:3929 32:35 34:91 35:293 36:4903 37:4452 38:10302 39:1431 40:462 41:4629 42:2254 43:3449 44:517 45:19841 46:5042 47:460 48:171 49:2297 50:2014 51:959 52:1401 54:395 55:1159 56:11 57:327 58:2847 59:1493 60:1196 61:3322 62:3167 63:1706 64:6661 65:2237 66:6291 67:3336 68:1297 69:4109 70:1080 71:615 72:3290 74:3149 75:1733 76:592 77:2926 78:2146 79:1930 80:2379 81:2310 82:4392 83:1493 84:2173 85:3886 86:1136 87:3002 88:1341 89:4906 90:769 91:8518 92:2745 93:3070 94:4641 95:4765 96:1454 97:304 98:944 99:1090 100:65 101:1609 102:4771 103:32532 104:5738 105:928 106:930 107:3013 108:1556 109:3982 110:2236 111:4219 112:3154 113:1955 114:2611 115:2349 116:2102 117:3875 118:3042 119:2089 120:2864 121:1848 122:3061 123:2243 124:1934 125:2965 126:156 128:1626 129:977 130:1761 131:2577 132:894 133:484 134:1808 135:673 136:1597 137:1608 138:3468 139:1828 140:1879 141:1884 142:2696 143:2342 144:1908 145:709 146:2246 147:2394 148:2877 149:3735 150:1432 151:3068 152:2455 153:2171 154:9092 155:2383 156:3980 157:2461 158:1656 159:2953 160:4089 161:2102 162:4239 163:2753 164:2435 165:2769 166:1256 167:2408 168:4335 169:958 170:5618 171:1132 172:4934 173:3470 174:895 175:1424 176:4071 177:5609 178:4696 179:2764 180:3351 181:4681 182:4098 183:2895 184:2215 185:22067 186:6571 187:5821 188:4795 189:4839 190:9935 191:1937 192:11848 193:9607 194:7963 195:5971 196:3418 197:3243 198:6355 199:6134 200:8474 201:6910 202:10714 203:10742 204:4787 205:3783 206:4498 207:4083 208:4327 209:5548 210:4786 211:2729 212:5244 213:4147 214:1030 215:50 216:7354 217:3811 218:1926 219:413 220:2240 221:1444 222:986 223:3618 End of report