IPv4 R&E Routing Table Report 21:35 GMT Tue 15 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: 1071396 Prefixes after maximum aggregation (per Origin AS): 413176 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 532663 Number of IPv4 prefixes with a valid ROA: 746775 Number of IPv4 prefixes with an invalid ROA: 185 Number of IPv4 prefixes with no ROA: 324436 Total ASes present in the Internet Routing Table: 79308 Prefixes per ASN: 13.51 Origin-only ASes present in the Internet Routing Table: 67882 Origin ASes announcing only one prefix: 27779 Transit ASes present in the Internet Routing Table: 11426 Transit-only ASes present in the Internet Routing Table: 609 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: 57 Max AS path prepend of ASN (273131) 50 Prefixes from unregistered ASNs in the Routing Table: 1383 Number of instances of unregistered ASNs: 1400 Number of 32-bit ASNs allocated by the RIRs: 51214 Number of 32-bit ASNs visible in the Routing Table: 41630 Prefixes from 32-bit ASNs in the Routing Table: 240431 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: 519 Number of addresses announced to Internet: 3125599232 Equivalent to 186 /8s, 76 /16s and 220 /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: 353202 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 288677 Total APNIC prefixes after maximum aggregation: 85720 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 276545 Unique aggregates announced from the APNIC address blocks: 110501 APNIC Region origin ASes present in the Internet Routing Table: 15343 APNIC Prefixes per ASN: 18.02 APNIC Region origin ASes announcing only one prefix: 4733 APNIC Region transit ASes present in the Internet Routing Table: 2038 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: 10951 Number of APNIC addresses announced to Internet: 748624640 Equivalent to 44 /8s, 159 /16s and 27 /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: 312996 Total ARIN prefixes after maximum aggregation: 139285 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 311079 Unique aggregates announced from the ARIN address blocks: 152499 ARIN Region origin ASes present in the Internet Routing Table: 19483 ARIN Prefixes per ASN: 15.97 ARIN Region origin ASes announcing only one prefix: 7151 ARIN Region transit ASes present in the Internet Routing Table: 1979 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: 5774 Number of ARIN addresses announced to Internet: 1355534080 Equivalent to 80 /8s, 203 /16s and 207 /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: 298778 Total RIPE prefixes after maximum aggregation: 148659 RIPE Deaggregation factor: 2.01 Prefixes being announced from the RIPE address blocks: 304476 Unique aggregates announced from the RIPE address blocks: 199264 RIPE Region origin ASes present in the Internet Routing Table: 29855 RIPE Prefixes per ASN: 10.20 RIPE Region origin ASes announcing only one prefix: 12352 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: 13875 Number of RIPE addresses announced to Internet: 749762048 Equivalent to 44 /8s, 176 /16s and 118 /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: 131488 Total LACNIC prefixes after maximum aggregation: 31655 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 125424 Unique aggregates announced from the LACNIC address blocks: 51432 LACNIC Region origin ASes present in the Internet Routing Table: 11508 LACNIC Prefixes per ASN: 10.90 LACNIC Region origin ASes announcing only one prefix: 2778 LACNIC Region transit ASes present in the Internet Routing Table: 2659 Average LACNIC Region AS path length visible: 6.1 Max LACNIC Region AS path length visible: 57 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9581 Number of LACNIC addresses announced to Internet: 167548416 Equivalent to 9 /8s, 252 /16s and 150 /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: 38074 Total AfriNIC prefixes after maximum aggregation: 7053 AfriNIC Deaggregation factor: 5.40 Prefixes being announced from the AfriNIC address blocks: 53352 Unique aggregates announced from the AfriNIC address blocks: 18537 AfriNIC Region origin ASes present in the Internet Routing Table: 2088 AfriNIC Prefixes per ASN: 25.55 AfriNIC Region origin ASes announcing only one prefix: 765 AfriNIC Region transit ASes present in the Internet Routing Table: 382 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: 1449 Number of AfriNIC addresses announced to Internet: 103872256 Equivalent to 6 /8s, 48 /16s and 247 /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 14020 8735 127 CHINAMOBILE-CN - China Mobile Communicati 9498 5111 561 348 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4648 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 3619 886 179 CMNET-Jiangsu-AP - China Mobile communica 7713 3519 1043 69 telkomnet-as-ap - PT Telekomunikasi Indon 45899 3391 1868 97 VNPT-AS-VN - VNPT Corp, VN 140292 3083 315 1809 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 17882 42642 5636 AMAZON-02 - Amazon.com, Inc., US 22773 4859 3199 421 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 3832 1305 74 SHAW - Shaw Communications, CA 396982 3521 5379 592 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 2807 2562 896 WINDSTREAM - Windstream Communications LL 31898 2758 1370 1148 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 7005 1709 149 UNI2-AS - Orange Espagne SA, ES 39891 4907 302 76 ALJAWWALSTC-AS - Saudi Telecom Company JS 9009 4209 375 2560 M247 - M247 Europe SRL, RO 20940 3809 3388 104 AKAMAI-ASN1 - Akamai International B.V., 212238 3591 260 2714 CDNEXT - Datacamp Limited, GB 12389 3123 2330 867 ROSTELECOM-AS - PJSC Rostelecom, RU 34984 2527 371 600 TELLCOM-AS - Superonline Iletisim Hizmetl 29355 2524 155 28 KCELL-AS - Kcell JSC, KZ 44559 1752 110 946 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 13135 3305 610 AS8151 - UNINET, MX 10620 3406 443 1115 AS10620 - Telmex Colombia S.A., CO 13999 2236 495 327 AS13999 - Mega Cable, S.A. de C.V., MX 11830 1871 369 65 AS11830 - Instituto Costarricense de Elec 11664 1509 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 1198 371 21 AS6147 - INTEGRATEL PERU S.A.A., PE 22884 1100 74 385 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 1940 1543 328 ETISALAT MISR - ETISALAT MISR, EG 24863 1469 389 16 Link Egypt (Link.NET) - Link Egypt (Link. 36903 1356 590 108 Office National des Postes et Telecommuni 36935 1286 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 591 57 62 Wananchi Group (Kenya) Limited - Wananchi 20011 557 160 172 Dimension Data - Dimension Data, ZA 36914 549 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 17882 42642 5636 AMAZON-02 - Amazon.com, Inc., US 9808 14020 8735 127 CHINAMOBILE-CN - China Mobile Communicati 8151 13135 3305 610 AS8151 - UNINET, MX 12479 7005 1709 149 UNI2-AS - Orange Espagne SA, ES 9498 5111 561 348 BBIL-AP - BHARTI Airtel Ltd., IN 39891 4907 302 76 ALJAWWALSTC-AS - Saudi Telecom Company JS 22773 4859 3199 421 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 18403 4648 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 14020 13893 CHINAMOBILE-CN - China Mobile Communications Gr 8151 13135 12525 AS8151 - UNINET, MX 12479 7005 6856 UNI2-AS - Orange Espagne SA, ES 39891 4907 4831 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 9498 5111 4763 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4648 4624 FPT-VN - FPT Telecom Company, VN 22773 4859 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 /12:299 /13:591 /14:1194 /15:2144 /16:13752 /17:8299 /18:13282 /19:25501 /20:45533 /21:53169 /22:113364 /23:110640 /24:683461 /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 7331 13135 AS8151 - UNINET, MX 12479 5921 7005 UNI2-AS - Orange Espagne SA, ES 39891 3656 4907 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 6327 3597 3832 SHAW - Shaw Communications, CA 11492 3520 4611 CABLEONE - CABLE ONE, INC., US 16509 3457 17882 AMAZON-02 - Amazon.com, Inc., US 7155 3269 4338 VIASAT-SP-BACKBONE - ViaSat,Inc., US 22773 3109 4859 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 10620 2241 3406 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) ---------------------------------------------- 1:2702 2:2891 3:1567 4:5 5:5619 6:214 7:6 8:1345 9:111 11:172 12:1095 13:1319 14:2695 15:489 16:285 17:464 18:1695 20:618 21:4 22:188 23:8576 24:2804 25:2 27:2947 28:7 29:19 31:3925 32:35 34:93 35:293 36:4904 37:4447 38:10320 39:1423 40:461 41:4626 42:2239 43:3456 44:514 45:19804 46:5039 47:459 48:171 49:2316 50:2013 51:951 52:1421 54:438 55:1163 56:11 57:332 58:2854 59:1492 60:1197 61:3316 62:3181 63:1704 64:6672 65:2237 66:6282 67:3337 68:1302 69:4105 70:1084 71:615 72:3260 74:3151 75:1734 76:594 77:2925 78:2142 79:1945 80:2375 81:2312 82:4411 83:1496 84:2180 85:3884 86:1138 87:3021 88:1340 89:4897 90:778 91:8519 92:2747 93:3068 94:4646 95:4759 96:1455 97:305 98:943 99:1104 100:65 101:1608 102:4744 103:32499 104:5727 105:935 106:931 107:3024 108:1690 109:3979 110:2233 111:4218 112:3155 113:1956 114:2611 115:2348 116:2100 117:3880 118:3041 119:2086 120:2865 121:1837 122:3058 123:2243 124:1935 125:2968 126:156 128:1626 129:980 130:1764 131:2574 132:896 133:484 134:1795 135:673 136:1599 137:1610 138:3452 139:1830 140:1878 141:1871 142:2694 143:2348 144:1909 145:700 146:2245 147:2401 148:2880 149:3735 150:1429 151:3078 152:2457 153:2167 154:8739 155:2395 156:3918 157:2464 158:1656 159:2962 160:4089 161:2104 162:4244 163:2757 164:2447 165:2767 166:1259 167:2406 168:4257 169:958 170:5624 171:1132 172:4938 173:3479 174:895 175:1420 176:4065 177:5606 178:4682 179:2767 180:3346 181:4692 182:4097 183:2893 184:2219 185:22066 186:6527 187:5811 188:4781 189:4836 190:9939 191:1938 192:11856 193:9615 194:7961 195:5965 196:3420 197:3247 198:6358 199:6133 200:8477 201:6845 202:10680 203:10726 204:4796 205:3771 206:4505 207:4082 208:4341 209:5547 210:4783 211:2728 212:5245 213:4140 214:1030 215:50 216:7362 217:3827 218:1926 219:412 220:2240 221:1445 222:983 223:3623 End of report