IPv4 R&E Routing Table Report 23:00 GMT Fri 01 May, 2026 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 1044783 Prefixes after maximum aggregation (per Origin AS): 400438 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 515744 Number of IPv4 prefixes with a valid ROA: 626587 Number of IPv4 prefixes with an invalid ROA: 842 Number of IPv4 prefixes with no ROA: 417354 Total ASes present in the Internet Routing Table: 78335 Prefixes per ASN: 13.34 Origin-only ASes present in the Internet Routing Table: 67136 Origin ASes announcing only one prefix: 27386 Transit ASes present in the Internet Routing Table: 11199 Transit-only ASes present in the Internet Routing Table: 590 Paths with bogon ASNs present in the IPv4 Routing Table: 40 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 216 Max AS path prepend of ASN (205624) 211 Prefixes from unregistered ASNs in the Routing Table: 1007 Number of instances of unregistered ASNs: 1036 Number of 32-bit ASNs allocated by the RIRs: 49582 Number of 32-bit ASNs visible in the Routing Table: 40481 Prefixes from 32-bit ASNs in the Routing Table: 229146 Number of bogon 32-bit ASNs visible in the Routing Table: 76 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 431 Number of addresses announced to Internet: 3104817152 Equivalent to 185 /8s, 15 /16s and 192 /24s Percentage of available address space announced: 83.9 Percentage of allocated address space announced: 83.9 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: 340742 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 285080 Total APNIC prefixes after maximum aggregation: 82618 APNIC Deaggregation factor: 3.45 Prefixes being announced from the APNIC address blocks: 271381 Unique aggregates announced from the APNIC address blocks: 107774 APNIC Region origin ASes present in the Internet Routing Table: 15153 APNIC Prefixes per ASN: 17.91 APNIC Region origin ASes announcing only one prefix: 4610 APNIC Region transit ASes present in the Internet Routing Table: 2050 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10749 Number of APNIC addresses announced to Internet: 749071360 Equivalent to 44 /8s, 165 /16s and 236 /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: 303371 Total ARIN prefixes after maximum aggregation: 136375 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 302628 Unique aggregates announced from the ARIN address blocks: 147505 ARIN Region origin ASes present in the Internet Routing Table: 19400 ARIN Prefixes per ASN: 15.60 ARIN Region origin ASes announcing only one prefix: 7113 ARIN Region transit ASes present in the Internet Routing Table: 1895 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 216 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5557 Number of ARIN addresses announced to Internet: 1348230144 Equivalent to 80 /8s, 92 /16s and 92 /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: 289603 Total RIPE prefixes after maximum aggregation: 143034 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 292659 Unique aggregates announced from the RIPE address blocks: 190823 RIPE Region origin ASes present in the Internet Routing Table: 29449 RIPE Prefixes per ASN: 9.94 RIPE Region origin ASes announcing only one prefix: 12216 RIPE Region transit ASes present in the Internet Routing Table: 4083 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13354 Number of RIPE addresses announced to Internet: 733124096 Equivalent to 43 /8s, 178 /16s and 150 /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: 128465 Total LACNIC prefixes after maximum aggregation: 30809 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 122976 Unique aggregates announced from the LACNIC address blocks: 50306 LACNIC Region origin ASes present in the Internet Routing Table: 11384 LACNIC Prefixes per ASN: 10.80 LACNIC Region origin ASes announcing only one prefix: 2713 LACNIC Region transit ASes present in the Internet Routing Table: 2583 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9431 Number of LACNIC addresses announced to Internet: 169959680 Equivalent to 10 /8s, 33 /16s and 97 /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: 37257 Total AfriNIC prefixes after maximum aggregation: 6987 AfriNIC Deaggregation factor: 5.33 Prefixes being announced from the AfriNIC address blocks: 54708 Unique aggregates announced from the AfriNIC address blocks: 18969 AfriNIC Region origin ASes present in the Internet Routing Table: 2023 AfriNIC Prefixes per ASN: 27.04 AfriNIC Region origin ASes announcing only one prefix: 734 AfriNIC Region transit ASes present in the Internet Routing Table: 383 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1390 Number of AfriNIC addresses announced to Internet: 104233728 Equivalent to 6 /8s, 54 /16s and 123 /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 13863 8761 121 CHINAMOBILE-CN China Mobile Communication 7545 5883 826 483 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4935 552 322 BBIL-AP BHARTI Airtel Ltd., IN 18403 4540 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 4057 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3678 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3538 887 177 CMNET-JIANGSU-AP China Mobile communicati 17561 3474 218 565 LCS-AS-AP LARUS Limited, HK 45899 3365 1868 100 VNPT-AS-VN VNPT Corp, VN 24560 2901 813 659 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14849 41290 5688 AMAZON-02 - Amazon.com, Inc., US 22773 4781 3116 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4653 309 1047 CABLEONE - CABLE ONE, INC., US 7155 3870 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3726 1305 75 SHAW - Shaw Communications, CA 174 3407 8770 846 COGENT-174 - Cogent Communications, LLC, 396982 3338 4864 507 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3138 54728 2389 DNIC-AS-00749 - United States Department 36352 2720 222 904 AS-COLOCROSSING - HostPapa, US 7029 2631 2560 921 WINDSTREAM - Windstream Communications LL Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7170 1711 149 UNI2-AS, ES 39891 4943 305 72 ALJAWWALSTC-AS, SA 9009 3860 355 2265 M247, RO 20940 3792 3389 110 AKAMAI-ASN1, NL 12389 3141 2321 870 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2761 201 2036 CDNEXT, GB 34984 2450 365 578 TELLCOM-AS, TR 8452 1725 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/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12849 3294 633 UNINET, MX 10620 3429 450 1105 Telmex Colombia S.A., CO 13999 2432 506 350 Mega Cable, S.A. de C.V., MX 11830 1936 369 65 Instituto Costarricense de Electricidad y 11664 1446 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 1229 379 23 INTEGRATEL PERU S.A.A., PE 22884 1071 70 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1071 2392 100 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 2027 649 36 RAYA-AS, EG 36992 1859 1533 336 ETISALAT-MISR, EG 24863 1273 389 16 LINKdotNET-AS, EG 36935 1243 522 44 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1117 1100 11 MOBINIL, EG 29571 1071 78 19 ORANGE-COTE-IVOIRE, CI 20011 589 155 220 NTT-DATA-Inc, ZA 328608 562 53 158 Africa-on-Cloud-AS, ZA 15399 553 57 58 WANANCHI-, KE Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14849 41290 5688 AMAZON-02 - Amazon.com, Inc., US 9808 13863 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12849 3294 633 UNINET, MX 12479 7170 1711 149 UNI2-AS, ES 7545 5883 826 483 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4943 305 72 ALJAWWALSTC-AS, SA 9498 4935 552 322 BBIL-AP BHARTI Airtel Ltd., IN 22773 4781 3116 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4653 309 1047 CABLEONE - CABLE ONE, INC., US 18403 4540 347 26 FPT-AS-AP FPT Telecom Company, VN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13863 13742 CHINAMOBILE-CN China Mobile Communications Grou 8151 12849 12216 UNINET, MX 12479 7170 7021 UNI2-AS, ES 7545 5883 5400 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4943 4871 ALJAWWALSTC-AS, SA 9498 4935 4613 BBIL-AP BHARTI Airtel Ltd., IN 18403 4540 4514 FPT-AS-AP FPT Telecom Company, VN 22773 4781 4417 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4057 4029 VIETEL-AS-AP Viettel Group, VN 7155 3870 3780 VIASAT-SP-BACKBONE - ViaSat,Inc., US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887 - C 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 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/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 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, FR 23.137.200.0/24 Transit: 174 COGENT-174 - Cogent Communications, LLC, 23.140.216.0/24 Origin: 27176 DATAWAGON - DataWagon LLC, US 23.140.216.0/24 Transit: 20278 NEXEON - Nexeon Technologies, Inc., US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS - Charter Communicat 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS - UnReal Servers, LLC, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:16 /9:14 /10:39 /11:95 /12:297 /13:581 /14:1189 /15:2098 /16:13590 /17:8252 /18:13277 /19:25417 /20:45608 /21:52368 /22:113605 /23:107549 /24:660788 /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 7045 12849 UNINET, MX 12479 6111 7170 UNI2-AS, ES 39891 3628 4943 ALJAWWALSTC-AS, SA 11492 3517 4653 CABLEONE - CABLE ONE, INC., US 6327 3507 3726 SHAW - Shaw Communications, CA 22773 3054 4781 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2825 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2673 14849 AMAZON-02 - Amazon.com, Inc., US 30036 2275 2621 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2233 3429 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2477 2:2022 3:1010 4:5 5:5179 6:199 7:6 8:1491 9:43 11:172 12:1184 13:703 14:2702 15:463 16:208 17:428 18:920 20:588 21:4 22:188 23:8167 24:2781 25:2 27:2807 28:1 29:19 31:3486 32:36 34:90 35:284 36:4746 37:4436 38:10174 39:1294 40:438 41:4566 42:2166 43:3156 44:449 45:19860 46:4861 47:438 48:127 49:2349 50:2014 51:693 52:1326 54:290 55:1211 56:11 57:323 58:2361 59:1380 60:1175 61:3163 62:3125 63:1701 64:6374 65:2140 66:6102 67:3266 68:1498 69:4218 70:1058 71:608 72:3183 74:3043 75:1501 76:589 77:2914 78:1997 79:1792 80:2346 81:2239 82:4143 83:1447 84:2138 85:3840 86:1086 87:2485 88:1333 89:4802 90:809 91:8463 92:2813 93:3019 94:4392 95:4724 96:1449 97:315 98:942 99:832 100:70 101:1625 102:4530 103:33040 104:5378 105:863 106:900 107:2892 108:1249 109:4244 110:2289 111:4125 112:3176 113:1973 114:2284 115:2312 116:2162 117:3490 118:3039 119:2084 120:2710 121:1542 122:2987 123:2289 124:1708 125:3017 126:126 128:1572 129:959 130:1639 131:2468 132:876 133:486 134:1673 135:606 136:1542 137:1347 138:3335 139:1613 140:1762 141:1734 142:2548 143:2089 144:1779 145:639 146:2186 147:2242 148:2792 149:3200 150:1386 151:2912 152:2555 153:1492 154:10196 155:2306 156:4875 157:2384 158:1570 159:2863 160:3835 161:1963 162:4042 163:2541 164:2453 165:2672 166:1280 167:2310 168:4000 169:872 170:5573 171:1134 172:4747 173:3461 174:880 175:1366 176:3883 177:4862 178:4384 179:2327 180:3201 181:4562 182:4022 183:2827 184:2007 185:21856 186:6076 187:5031 188:4554 189:4561 190:9844 191:1664 192:11460 193:9627 194:7886 195:5819 196:3363 197:3345 198:6117 199:6075 200:8105 201:6403 202:10649 203:10646 204:4781 205:3691 206:4609 207:3850 208:4375 209:5429 210:4732 211:2688 212:5087 213:4102 214:1044 215:47 216:7305 217:3604 218:1699 219:416 220:2191 221:1344 222:938 223:3443 End of report