IPv4 R&E Routing Table Report 21:35 GMT Sun 07 Jun, 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: 1050511 Prefixes after maximum aggregation (per Origin AS): 405669 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 521317 Number of IPv4 prefixes with a valid ROA: 691295 Number of IPv4 prefixes with an invalid ROA: 162 Number of IPv4 prefixes with no ROA: 359054 Total ASes present in the Internet Routing Table: 78666 Prefixes per ASN: 13.35 Origin-only ASes present in the Internet Routing Table: 67328 Origin ASes announcing only one prefix: 27485 Transit ASes present in the Internet Routing Table: 11338 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: 5.4 Max AS path length visible: 69 Max AS path prepend of ASN ( 63293) 64 Prefixes from unregistered ASNs in the Routing Table: 1187 Number of instances of unregistered ASNs: 1218 Number of 32-bit ASNs allocated by the RIRs: 50042 Number of 32-bit ASNs visible in the Routing Table: 40819 Prefixes from 32-bit ASNs in the Routing Table: 232496 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: 456 Number of addresses announced to Internet: 3103817216 Equivalent to 185 /8s, 0 /16s and 126 /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: 342772 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 286177 Total APNIC prefixes after maximum aggregation: 84319 APNIC Deaggregation factor: 3.39 Prefixes being announced from the APNIC address blocks: 272919 Unique aggregates announced from the APNIC address blocks: 109324 APNIC Region origin ASes present in the Internet Routing Table: 15211 APNIC Prefixes per ASN: 17.94 APNIC Region origin ASes announcing only one prefix: 4656 APNIC Region transit ASes present in the Internet Routing Table: 2062 Average APNIC Region AS path length visible: 5.2 Max APNIC Region AS path length visible: 44 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10806 Number of APNIC addresses announced to Internet: 747718656 Equivalent to 44 /8s, 145 /16s and 72 /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: 304845 Total ARIN prefixes after maximum aggregation: 137657 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 303558 Unique aggregates announced from the ARIN address blocks: 148420 ARIN Region origin ASes present in the Internet Routing Table: 19455 ARIN Prefixes per ASN: 15.60 ARIN Region origin ASes announcing only one prefix: 7114 ARIN Region transit ASes present in the Internet Routing Table: 1963 Average ARIN Region AS path length visible: 4.9 Max ARIN Region AS path length visible: 69 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5620 Number of ARIN addresses announced to Internet: 1348099840 Equivalent to 80 /8s, 90 /16s and 95 /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: 291580 Total RIPE prefixes after maximum aggregation: 145050 RIPE Deaggregation factor: 2.01 Prefixes being announced from the RIPE address blocks: 295251 Unique aggregates announced from the RIPE address blocks: 193375 RIPE Region origin ASes present in the Internet Routing Table: 29562 RIPE Prefixes per ASN: 9.99 RIPE Region origin ASes announcing only one prefix: 12235 RIPE Region transit ASes present in the Internet Routing Table: 4106 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: 13519 Number of RIPE addresses announced to Internet: 733709568 Equivalent to 43 /8s, 187 /16s and 133 /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: 129087 Total LACNIC prefixes after maximum aggregation: 30890 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 123414 Unique aggregates announced from the LACNIC address blocks: 50344 LACNIC Region origin ASes present in the Internet Routing Table: 11428 LACNIC Prefixes per ASN: 10.80 LACNIC Region origin ASes announcing only one prefix: 2748 LACNIC Region transit ASes present in the Internet Routing Table: 2612 Average LACNIC Region AS path length visible: 6.2 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9473 Number of LACNIC addresses announced to Internet: 169750784 Equivalent to 10 /8s, 30 /16s and 49 /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: 37635 Total AfriNIC prefixes after maximum aggregation: 7038 AfriNIC Deaggregation factor: 5.35 Prefixes being announced from the AfriNIC address blocks: 54912 Unique aggregates announced from the AfriNIC address blocks: 19462 AfriNIC Region origin ASes present in the Internet Routing Table: 2037 AfriNIC Prefixes per ASN: 26.96 AfriNIC Region origin ASes announcing only one prefix: 732 AfriNIC Region transit ASes present in the Internet Routing Table: 393 Average AfriNIC Region AS path length visible: 6.0 Max AfriNIC Region AS path length visible: 61 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1401 Number of AfriNIC addresses announced to Internet: 104289536 Equivalent to 6 /8s, 55 /16s and 85 /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 13949 8737 119 CHINAMOBILE-CN - China Mobile Communicati 7545 5872 824 472 TPG-INTERNET-AP - TPG Telecom Limited, AU 9498 4952 552 328 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4544 347 24 FPT-VN - FPT Telecom Company, VN 7552 4065 1331 24 VIETEL-AS-AP - Viettel Group, VN 7713 3698 1044 64 telkomnet-as-ap - PT Telekomunikasi Indon 56046 3541 887 177 CMNET-Jiangsu-AP - China Mobile communica 17561 3437 216 600 LCS-AS-AP - LARUS Limited, HK 45899 3371 1868 98 VNPT-AS-VN - VNPT Corp, VN 24560 2740 745 735 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 15087 41427 5624 AMAZON-02 - Amazon.com, Inc., US 22773 4763 3114 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4594 305 1090 CABLEONE - CABLE ONE, INC., US 7155 3871 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3727 1305 74 SHAW - Shaw Communications, CA 396982 3369 4868 517 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3137 54728 2388 DNIC-AS-00749 - United States Department 36352 3070 232 1046 AS-COLOCROSSING - HostPapa, US 7029 2645 2541 894 WINDSTREAM - Windstream Communications LL 30036 2546 353 588 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 7150 1711 149 UNI2-AS - Orange Espagne SA, ES 39891 4975 307 72 ALJAWWALSTC-AS - Saudi Telecom Company JS 9009 4072 370 2466 M247 - M247 Europe SRL, RO 20940 3794 3389 109 AKAMAI-ASN1 - Akamai International B.V., 12389 3147 2318 869 ROSTELECOM-AS - PJSC Rostelecom, RU 212238 3008 218 2248 CDNEXT - Datacamp Limited, GB 34984 2483 367 586 TELLCOM-AS - Superonline Iletisim Hizmetl 8452 1723 1852 14 TE-AS - IDDQD-AS, EG 203020 1654 253 828 HostRoyale - HostRoyale Technologies Pvt 13188 1607 100 27 TRIOLAN - CONTENT DELIVERY NETWORK LTD, 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 12798 3256 632 AS8151 - UNINET, MX 10620 3432 450 1101 AS10620 - Telmex Colombia S.A., CO 13999 2347 500 347 AS13999 - Mega Cable, S.A. de C.V., MX 11830 1930 369 65 AS11830 - Instituto Costarricense de Elec 11664 1482 277 34 AS11664 - Techtel LMDS Comunicaciones Int 28573 1365 2431 269 AS28573 - Claro NXT Telecomunicacoes Ltda 3816 1343 772 213 AS3816 - COLOMBIA TELECOMUNICACIONES S.A. 6147 1224 371 22 AS6147 - INTEGRATEL PERU S.A.A., PE 22884 1094 71 362 AS22884 - TOTAL PLAY TELECOMUNICACIONES, 26615 1072 2392 100 AS26615 - TIM S/A, 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 24835 2027 633 35 Vodafone Data - Vodafone Data, EG 36992 1861 1532 337 ETISALAT MISR - ETISALAT MISR, EG 36935 1292 523 45 Vodafone Data - Vodafone Data, EG 24863 1272 389 16 Link Egypt (Link.NET) - Link Egypt (Link. 36903 1232 555 98 Office National des Postes et Telecommuni 37069 1116 1100 11 The Egyptian Company for Mobile Services 29571 1085 70 18 Orange Côte d'Ivoire - Orange Côte d'Iv 328608 621 56 173 Africa on Cloud - Africa on Cloud, ZA 20011 598 157 222 Dimension Data - Dimension Data, ZA 36914 551 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 15087 41427 5624 AMAZON-02 - Amazon.com, Inc., US 9808 13949 8737 119 CHINAMOBILE-CN - China Mobile Communicati 8151 12798 3256 632 AS8151 - UNINET, MX 12479 7150 1711 149 UNI2-AS - Orange Espagne SA, ES 7545 5872 824 472 TPG-INTERNET-AP - TPG Telecom Limited, AU 39891 4975 307 72 ALJAWWALSTC-AS - Saudi Telecom Company JS 9498 4952 552 328 BBIL-AP - BHARTI Airtel Ltd., IN 22773 4763 3114 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4594 305 1090 CABLEONE - CABLE ONE, INC., US 18403 4544 347 24 FPT-VN - 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 13949 13830 CHINAMOBILE-CN - China Mobile Communications Gr 8151 12798 12166 AS8151 - UNINET, MX 12479 7150 7001 UNI2-AS - Orange Espagne SA, ES 7545 5872 5400 TPG-INTERNET-AP - TPG Telecom Limited, AU 39891 4975 4903 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 9498 4952 4624 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4544 4520 FPT-VN - FPT Telecom Company, VN 22773 4763 4400 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4065 4041 VIETEL-AS-AP - Viettel Group, VN 7155 3871 3781 VIASAT-SP-BACKBONE - ViaSat,Inc., US 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 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 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4 - AT&T En 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 23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 174 COGENT-174 - Cogent Communications, LLC, 23.137.200.0/24 Origin: 16276 OVH - OVH SAS, FR 23.137.200.0/24 Transit: 7575 AARNET-AS-AP - Australian Academic and R 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 /12:298 /13:584 /14:1190 /15:2110 /16:13576 /17:8277 /18:13301 /19:25434 /20:45727 /21:52437 /22:113535 /23:108319 /24:665558 /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 7014 12798 AS8151 - UNINET, MX 12479 6082 7150 UNI2-AS - Orange Espagne SA, ES 39891 3660 4975 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 6327 3508 3727 SHAW - Shaw Communications, CA 11492 3471 4594 CABLEONE - CABLE ONE, INC., US 22773 3055 4763 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2826 3871 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2735 15087 AMAZON-02 - Amazon.com, Inc., US 10620 2236 3432 AS10620 - Telmex Colombia S.A., CO 30036 2202 2546 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) ---------------------------------------------- 1:2514 2:2049 3:993 4:5 5:5227 6:202 7:6 8:1427 9:69 11:172 12:1118 13:708 14:2717 15:467 16:220 17:443 18:931 20:612 21:4 22:188 23:8407 24:2776 25:2 27:2810 28:1 29:19 31:3812 32:36 34:87 35:286 36:4786 37:4437 38:9938 39:1308 40:375 41:4558 42:2142 43:3214 44:457 45:19743 46:4945 47:421 48:168 49:2307 50:2023 51:823 52:1348 54:290 55:1173 56:11 57:317 58:2747 59:1489 60:1166 61:3134 62:3152 63:1674 64:6436 65:2148 66:6019 67:3273 68:1256 69:4083 70:1052 71:617 72:3194 74:3092 75:1501 76:593 77:2906 78:2061 79:1750 80:2342 81:2286 82:4329 83:1460 84:2209 85:3852 86:1094 87:2701 88:1315 89:4753 90:801 91:8429 92:2786 93:3013 94:4445 95:4682 96:1449 97:309 98:943 99:855 100:69 101:1465 102:4721 103:32434 104:5480 105:858 106:900 107:2953 108:1289 109:3955 110:2278 111:4130 112:3096 113:1988 114:2530 115:2329 116:2070 117:3598 118:3043 119:2126 120:2967 121:1647 122:3011 123:2235 124:1931 125:2984 126:158 128:1610 129:975 130:1690 131:2441 132:894 133:483 134:1730 135:621 136:1474 137:1565 138:3410 139:1804 140:1858 141:1751 142:2580 143:2084 144:1771 145:657 146:2190 147:2268 148:2797 149:3273 150:1374 151:2969 152:2379 153:1763 154:9632 155:2349 156:4980 157:2428 158:1589 159:2867 160:3859 161:2022 162:4130 163:2619 164:2383 165:2763 166:1261 167:2365 168:4077 169:879 170:5626 171:1139 172:4898 173:3443 174:898 175:1360 176:3967 177:5093 178:4473 179:2422 180:3407 181:4598 182:4041 183:2861 184:2017 185:21813 186:6273 187:5051 188:4651 189:4567 190:9912 191:1705 192:11788 193:9615 194:7825 195:5828 196:3397 197:3235 198:6276 199:6073 200:8308 201:6497 202:10679 203:10698 204:4801 205:3790 206:4441 207:4011 208:4380 209:5491 210:4764 211:2695 212:5097 213:4089 214:1040 215:47 216:7251 217:3635 218:1764 219:407 220:2216 221:1326 222:948 223:3584 End of report