IPv4 R&E Routing Table Report 23:00 GMT Fri 13 Mar, 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: 1034640 Prefixes after maximum aggregation (per Origin AS): 398008 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 511842 Number of IPv4 prefixes with a valid ROA: 623573 Number of IPv4 prefixes with an invalid ROA: 530 Number of IPv4 prefixes with no ROA: 410537 Total ASes present in the Internet Routing Table: 78035 Prefixes per ASN: 13.26 Origin-only ASes present in the Internet Routing Table: 66841 Origin ASes announcing only one prefix: 27245 Transit ASes present in the Internet Routing Table: 11194 Transit-only ASes present in the Internet Routing Table: 588 Paths with bogon ASNs present in the IPv4 Routing Table: 41 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 70 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1102 Number of instances of unregistered ASNs: 1134 Number of 32-bit ASNs allocated by the RIRs: 48926 Number of 32-bit ASNs visible in the Routing Table: 40057 Prefixes from 32-bit ASNs in the Routing Table: 224979 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: 413 Number of addresses announced to Internet: 3106919168 Equivalent to 185 /8s, 47 /16s and 211 /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: 337404 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 281189 Total APNIC prefixes after maximum aggregation: 81759 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 268365 Unique aggregates announced from the APNIC address blocks: 107210 APNIC Region origin ASes present in the Internet Routing Table: 15101 APNIC Prefixes per ASN: 17.77 APNIC Region origin ASes announcing only one prefix: 4606 APNIC Region transit ASes present in the Internet Routing Table: 2042 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 52 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10671 Number of APNIC addresses announced to Internet: 751835648 Equivalent to 44 /8s, 208 /16s and 26 /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: 303435 Total ARIN prefixes after maximum aggregation: 136993 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 302059 Unique aggregates announced from the ARIN address blocks: 147095 ARIN Region origin ASes present in the Internet Routing Table: 19366 ARIN Prefixes per ASN: 15.60 ARIN Region origin ASes announcing only one prefix: 7078 ARIN Region transit ASes present in the Internet Routing Table: 1927 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5499 Number of ARIN addresses announced to Internet: 1348822016 Equivalent to 80 /8s, 101 /16s and 100 /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, 393216-402332 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: 285131 Total RIPE prefixes after maximum aggregation: 140944 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 287823 Unique aggregates announced from the RIPE address blocks: 187418 RIPE Region origin ASes present in the Internet Routing Table: 29289 RIPE Prefixes per ASN: 9.83 RIPE Region origin ASes announcing only one prefix: 12150 RIPE Region transit ASes present in the Internet Routing Table: 4065 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 30 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13141 Number of RIPE addresses announced to Internet: 732393472 Equivalent to 43 /8s, 167 /16s and 112 /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: 126888 Total LACNIC prefixes after maximum aggregation: 30666 LACNIC Deaggregation factor: 4.14 Prefixes being announced from the LACNIC address blocks: 122643 Unique aggregates announced from the LACNIC address blocks: 50249 LACNIC Region origin ASes present in the Internet Routing Table: 11351 LACNIC Prefixes per ASN: 10.80 LACNIC Region origin ASes announcing only one prefix: 2678 LACNIC Region transit ASes present in the Internet Routing Table: 2564 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: 9367 Number of LACNIC addresses announced to Internet: 170357248 Equivalent to 10 /8s, 39 /16s and 114 /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: 36895 Total AfriNIC prefixes after maximum aggregation: 6942 AfriNIC Deaggregation factor: 5.31 Prefixes being announced from the AfriNIC address blocks: 53337 Unique aggregates announced from the AfriNIC address blocks: 19505 AfriNIC Region origin ASes present in the Internet Routing Table: 2012 AfriNIC Prefixes per ASN: 26.51 AfriNIC Region origin ASes announcing only one prefix: 733 AfriNIC Region transit ASes present in the Internet Routing Table: 386 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1379 Number of AfriNIC addresses announced to Internet: 103312384 Equivalent to 6 /8s, 40 /16s and 108 /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 13730 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 5973 830 523 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4845 548 319 BBIL-AP BHARTI Airtel Ltd., IN 18403 4563 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4021 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3672 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3468 887 177 CMNET-JIANGSU-AP China Mobile communicati 45899 3336 1868 99 VNPT-AS-VN VNPT Corp, VN 24560 3006 865 515 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2806 177 538 LCS-AS-AP LARUS Limited, HK 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 14451 41234 5553 AMAZON-02 - Amazon.com, Inc., US 22773 4779 3101 367 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4647 308 1020 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3708 1321 75 SHAW - Shaw Communications, CA 396982 3292 4856 487 GOOGLE-CLOUD-PLATFORM - Google LLC, US 174 3238 8767 852 COGENT-174 - Cogent Communications, LLC, 749 3142 54729 2393 DNIC-AS-00749 - United States Department 36352 2700 221 890 AS-COLOCROSSING - HostPapa, US 16625 2690 1172 2088 AKAMAI-AS - Akamai Technologies, Inc., US 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 7203 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 9009 3829 355 2248 M247, RO 20940 3824 3393 112 AKAMAI-ASN1, NL 12389 3144 2319 868 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2670 193 1957 CDNEXT, GB 34984 2463 366 569 TELLCOM-AS, TR 8452 1697 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1606 243 787 HOSTROYALE, IN 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 12807 3302 595 UNINET, MX 10620 3452 457 1103 Telmex Colombia S.A., CO 13999 2455 506 346 Mega Cable, S.A. de C.V., MX 11830 1956 369 65 Instituto Costarricense de Electricidad y 11664 1453 278 33 Techtel LMDS Comunicaciones Interactivas 28573 1371 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1234 371 22 INTEGRATEL PERU S.A.A., PE 22884 1057 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1056 2475 94 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 2044 648 34 RAYA-AS, EG 36992 1845 1531 336 ETISALAT-MISR, EG 24863 1289 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1228 520 43 Vodafone-, EG 37069 1108 1100 11 MOBINIL, EG 29571 1072 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 15399 555 57 59 WANANCHI-, KE 36914 552 82 3 KENET-AS, 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 14451 41234 5553 AMAZON-02 - Amazon.com, Inc., US 9808 13730 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12807 3302 595 UNINET, MX 12479 7203 1711 149 UNI2-AS, ES 7545 5973 830 523 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 9498 4845 548 319 BBIL-AP BHARTI Airtel Ltd., IN 22773 4779 3101 367 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4647 308 1020 CABLEONE - CABLE ONE, INC., US 18403 4563 347 25 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 13730 13610 CHINAMOBILE-CN China Mobile Communications Grou 8151 12807 12212 UNINET, MX 12479 7203 7054 UNI2-AS, ES 7545 5973 5450 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 18403 4563 4538 FPT-AS-AP FPT Telecom Company, VN 9498 4845 4526 BBIL-AP BHARTI Airtel Ltd., IN 22773 4779 4412 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4021 3992 VIETEL-AS-AP Viettel Group, VN 7155 3861 3776 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 402287 UNALLOCATED 8.12.64.0/24 3356 LEVEL3 - Level 3 Parent 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887 - C 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 397665 UNALLOCATED 12.24.28.0/24 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 /10:40 /11:95 /12:296 /13:580 /14:1189 /15:2091 /16:13581 /17:8231 /18:13212 /19:25302 /20:45588 /21:52170 /22:113500 /23:107029 /24:651706 /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 6970 12807 UNINET, MX 12479 6140 7203 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3507 4647 CABLEONE - CABLE ONE, INC., US 6327 3488 3708 SHAW - Shaw Communications, CA 22773 3047 4779 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2587 14451 AMAZON-02 - Amazon.com, Inc., US 30036 2316 2664 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2232 3452 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) ---------------------------------------------- 1:2491 2:1598 3:994 4:5 5:5199 6:196 7:6 8:1501 9:29 11:172 12:1194 13:644 14:2667 15:459 16:167 17:420 18:915 20:603 21:4 22:188 23:8178 24:2827 25:2 27:2822 28:1 29:19 31:3412 32:30 34:90 35:291 36:4630 37:4454 38:9965 39:1267 40:419 41:4531 42:2072 43:3038 44:442 45:19970 46:4900 47:408 48:89 49:2192 50:2074 51:602 52:1306 54:279 55:1123 56:11 57:317 58:2363 59:1362 60:1174 61:3109 62:3115 63:1755 64:6261 65:2116 66:6002 67:3260 68:1500 69:4218 70:1047 71:613 72:3118 74:2985 75:1490 76:586 77:2873 78:1910 79:1791 80:2338 81:2210 82:4022 83:1442 84:2041 85:3810 86:1103 87:2271 88:1352 89:4718 90:797 91:8424 92:2835 93:3007 94:4316 95:4622 96:1441 97:312 98:948 99:802 100:68 101:1607 102:4475 103:33051 104:5480 105:814 106:924 107:2859 108:1219 109:4221 110:2298 111:4066 112:3150 113:1981 114:2182 115:2279 116:2192 117:3420 118:3005 119:2069 120:2682 121:1508 122:2980 123:2251 124:1667 125:3008 126:125 128:1661 129:955 130:1587 131:2470 132:798 133:463 134:1644 135:586 136:1600 137:1356 138:3160 139:1639 140:1785 141:1590 142:2556 143:2145 144:1731 145:630 146:2196 147:2152 148:2735 149:3056 150:1332 151:2706 152:2246 153:954 154:9518 155:2310 156:4376 157:2262 158:1503 159:2773 160:3840 161:1948 162:4018 163:2394 164:2037 165:2626 166:1296 167:2249 168:3990 169:891 170:5551 171:1105 172:4594 173:3467 174:883 175:1370 176:3828 177:4907 178:4328 179:2289 180:3158 181:4449 182:4012 183:2817 184:2013 185:21776 186:5718 187:4999 188:4567 189:4501 190:9741 191:1587 192:11479 193:9587 194:7842 195:5727 196:3310 197:3330 198:6102 199:6106 200:8073 201:6409 202:10666 203:10622 204:4723 205:3716 206:4479 207:3862 208:4367 209:5379 210:4726 211:2685 212:4998 213:4100 214:1049 215:46 216:7261 217:3543 218:1677 219:420 220:2159 221:1313 222:935 223:3338 End of report