IPv4 R&E Routing Table Report 23:00 GMT Fri 18 Sep, 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: 1072904 Prefixes after maximum aggregation (per Origin AS): 413328 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 534012 Number of IPv4 prefixes with a valid ROA: 751155 Number of IPv4 prefixes with an invalid ROA: 399 Number of IPv4 prefixes with no ROA: 321350 Total ASes present in the Internet Routing Table: 79234 Prefixes per ASN: 13.54 Origin-only ASes present in the Internet Routing Table: 67856 Origin ASes announcing only one prefix: 27760 Transit ASes present in the Internet Routing Table: 11378 Transit-only ASes present in the Internet Routing Table: 618 Paths with bogon ASNs present in the IPv4 Routing Table: 50 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: 1246 Number of instances of unregistered ASNs: 1258 Number of 32-bit ASNs allocated by the RIRs: 51276 Number of 32-bit ASNs visible in the Routing Table: 41639 Prefixes from 32-bit ASNs in the Routing Table: 241772 Number of bogon 32-bit ASNs visible in the Routing Table: 32 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 529 Number of addresses announced to Internet: 3125989120 Equivalent to 186 /8s, 82 /16s and 207 /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: 353578 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 290823 Total APNIC prefixes after maximum aggregation: 85874 APNIC Deaggregation factor: 3.39 Prefixes being announced from the APNIC address blocks: 278478 Unique aggregates announced from the APNIC address blocks: 110732 APNIC Region origin ASes present in the Internet Routing Table: 15338 APNIC Prefixes per ASN: 18.16 APNIC Region origin ASes announcing only one prefix: 4703 APNIC Region transit ASes present in the Internet Routing Table: 2083 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10963 Number of APNIC addresses announced to Internet: 748890880 Equivalent to 44 /8s, 163 /16s and 43 /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: 312138 Total ARIN prefixes after maximum aggregation: 139131 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 309917 Unique aggregates announced from the ARIN address blocks: 152637 ARIN Region origin ASes present in the Internet Routing Table: 19452 ARIN Prefixes per ASN: 15.93 ARIN Region origin ASes announcing only one prefix: 7159 ARIN Region transit ASes present in the Internet Routing Table: 1919 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: 5767 Number of ARIN addresses announced to Internet: 1355462912 Equivalent to 80 /8s, 202 /16s and 185 /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: 299299 Total RIPE prefixes after maximum aggregation: 148900 RIPE Deaggregation factor: 2.01 Prefixes being announced from the RIPE address blocks: 305423 Unique aggregates announced from the RIPE address blocks: 200084 RIPE Region origin ASes present in the Internet Routing Table: 29853 RIPE Prefixes per ASN: 10.23 RIPE Region origin ASes announcing only one prefix: 12347 RIPE Region transit ASes present in the Internet Routing Table: 4150 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 44 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13873 Number of RIPE addresses announced to Internet: 749984256 Equivalent to 44 /8s, 179 /16s and 218 /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: 131554 Total LACNIC prefixes after maximum aggregation: 31660 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 125462 Unique aggregates announced from the LACNIC address blocks: 51522 LACNIC Region origin ASes present in the Internet Routing Table: 11512 LACNIC Prefixes per ASN: 10.90 LACNIC Region origin ASes announcing only one prefix: 2785 LACNIC Region transit ASes present in the Internet Routing Table: 2646 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9584 Number of LACNIC addresses announced to Internet: 167571968 Equivalent to 9 /8s, 252 /16s and 242 /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: 37844 Total AfriNIC prefixes after maximum aggregation: 7041 AfriNIC Deaggregation factor: 5.37 Prefixes being announced from the AfriNIC address blocks: 53095 Unique aggregates announced from the AfriNIC address blocks: 18604 AfriNIC Region origin ASes present in the Internet Routing Table: 2086 AfriNIC Prefixes per ASN: 25.45 AfriNIC Region origin ASes announcing only one prefix: 766 AfriNIC Region transit ASes present in the Internet Routing Table: 370 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 85 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1452 Number of AfriNIC addresses announced to Internet: 103801600 Equivalent to 6 /8s, 47 /16s and 227 /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 14060 8737 135 CHINAMOBILE-CN - China Mobile Communicati 9498 5116 561 339 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4650 347 24 FPT-VN - FPT Telecom Company, VN 7545 4631 825 314 TPG-INTERNET-AP - TPG Telecom Limited, AU 7552 4077 1331 24 VIETEL-AS-AP - Viettel Group, VN 56046 3613 887 179 CMNET-Jiangsu-AP - China Mobile communica 7713 3501 1043 69 telkomnet-as-ap - PT Telekomunikasi Indon 45899 3401 1868 98 VNPT-AS-VN - VNPT Corp, VN 140292 3112 317 1816 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK - 24560 2478 589 701 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 18147 42650 5652 AMAZON-02 - Amazon.com, Inc., US 22773 4869 3184 424 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4612 306 1124 CABLEONE - CABLE ONE, INC., US 7155 4338 286 87 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3832 1305 74 SHAW - Shaw Communications, CA 396982 3525 5380 596 GOOGLE-CLOUD-PLATFORM - Google LLC, US 36352 3217 239 1144 AS-COLOCROSSING - HostPapa, US 749 3133 54663 2384 DNIC-AS-00749 - United States Department 7029 2820 2577 893 WINDSTREAM - Windstream Communications LL 31898 2753 1368 1145 ORACLE-BMC-31898 - Oracle Corporation, 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 7023 1709 149 UNI2-AS - Orange Espagne SA, ES 39891 4907 302 76 ALJAWWALSTC-AS - Saudi Telecom Company JS 9009 4303 384 2620 M247 - M247 Europe SRL, RO 20940 3814 3388 105 AKAMAI-ASN1 - Akamai International B.V., 212238 3597 260 2720 CDNEXT - Datacamp Limited, GB 12389 3123 2330 866 ROSTELECOM-AS - PJSC Rostelecom, RU 34984 2526 371 599 TELLCOM-AS - Superonline Iletisim Hizmetl 29355 2524 155 28 KCELL-AS - Kcell JSC, KZ 44559 1712 107 959 ITHOSTLINE - IT HOSTLINE LTD, CY 8452 1672 1852 14 TE-AS - IDDQD-AS, EG 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 13202 3307 608 AS8151 - UNINET, MX 10620 3406 443 1115 AS10620 - Telmex Colombia S.A., CO 13999 2237 495 328 AS13999 - Mega Cable, S.A. de C.V., MX 11830 1863 369 65 AS11830 - Instituto Costarricense de Elec 11664 1508 277 34 AS11664 - Techtel LMDS Comunicaciones Int 28573 1377 2433 268 AS28573 - Claro NXT Telecomunicacoes Ltda 3816 1266 762 224 AS3816 - COLOMBIA TELECOMUNICACIONES S.A. 6147 1195 371 21 AS6147 - INTEGRATEL PERU S.A.A., PE 22884 1099 73 385 AS22884 - TOTAL PLAY TELECOMUNICACIONES, 27715 1077 75 53 AS27715 - Locaweb Servicos de Internet S/ 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 36992 1941 1543 328 ETISALAT MISR - ETISALAT MISR, EG 24835 1888 485 24 Vodafone Data - Vodafone Data, EG 24863 1470 389 16 Link Egypt (Link.NET) - Link Egypt (Link. 36903 1356 590 108 Office National des Postes et Telecommuni 36935 1189 523 48 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 61 Wananchi Group (Kenya) Limited - Wananchi 20011 557 160 172 Dimension Data - Dimension Data, ZA 36914 544 82 3 Kenya Education Network - Kenya Education 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 18147 42650 5652 AMAZON-02 - Amazon.com, Inc., US 9808 14060 8737 135 CHINAMOBILE-CN - China Mobile Communicati 8151 13202 3307 608 AS8151 - UNINET, MX 12479 7023 1709 149 UNI2-AS - Orange Espagne SA, ES 9498 5116 561 339 BBIL-AP - BHARTI Airtel Ltd., IN 39891 4907 302 76 ALJAWWALSTC-AS - Saudi Telecom Company JS 22773 4869 3184 424 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 18403 4650 347 24 FPT-VN - FPT Telecom Company, VN 7545 4631 825 314 TPG-INTERNET-AP - TPG Telecom Limited, AU 11492 4612 306 1124 CABLEONE - CABLE ONE, INC., US 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 14060 13925 CHINAMOBILE-CN - China Mobile Communications Gr 8151 13202 12594 AS8151 - UNINET, MX 12479 7023 6874 UNI2-AS - Orange Espagne SA, ES 39891 4907 4831 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 9498 5116 4777 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4650 4626 FPT-VN - FPT Telecom Company, VN 22773 4869 4445 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7545 4631 4317 TPG-INTERNET-AP - TPG Telecom Limited, AU 7155 4338 4251 VIASAT-SP-BACKBONE - ViaSat,Inc., US 7552 4077 4053 VIETEL-AS-AP - Viettel Group, VN 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 394928 UNALLOCATED 8.2.70.0/24 6461 ZAYO-6461 - Zayo Bandwi 23338 UNALLOCATED 8.14.84.0/22 400043 IBRIDGE-01 - IBRIDGE CL 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/Singapore/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: 2914 NTT-DATA-2914 - NTT America, Inc., US 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: 394625 WHITELABELIT - WhiteLabel IT Solutions C 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 /11:97 /12:299 /13:588 /14:1190 /15:2136 /16:13716 /17:8233 /18:13220 /19:25469 /20:45555 /21:53155 /22:113153 /23:110531 /24:685493 /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 7368 13202 AS8151 - UNINET, MX 12479 5937 7023 UNI2-AS - Orange Espagne SA, ES 39891 3656 4907 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 6327 3597 3832 SHAW - Shaw Communications, CA 16509 3554 18147 AMAZON-02 - Amazon.com, Inc., US 11492 3520 4612 CABLEONE - CABLE ONE, INC., US 7155 3269 4338 VIASAT-SP-BACKBONE - ViaSat,Inc., US 22773 3110 4869 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 10620 2241 3406 AS10620 - Telmex Colombia S.A., CO 30036 2195 2543 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2707 2:2902 3:1664 4:6 5:5649 6:213 7:6 8:1344 9:111 11:172 12:1094 13:1376 14:2707 15:491 16:280 17:466 18:1732 20:601 21:4 22:188 23:8563 24:2807 25:2 27:2931 28:7 29:19 31:3964 32:35 34:93 35:293 36:4921 37:4437 38:10370 39:1432 40:452 41:4633 42:2243 43:3496 44:515 45:19946 46:5058 47:475 48:171 49:2455 50:2024 51:957 52:1426 54:449 55:1162 56:11 57:331 58:2885 59:1503 60:1197 61:3334 62:3187 63:1703 64:6618 65:2248 66:6275 67:3319 68:1304 69:4133 70:1090 71:610 72:3341 74:3138 75:1742 76:602 77:2930 78:2148 79:1901 80:2376 81:2312 82:4511 83:1506 84:2200 85:3890 86:1139 87:2998 88:1370 89:4932 90:777 91:8525 92:2764 93:3097 94:4685 95:4780 96:1458 97:304 98:943 99:1101 100:64 101:1611 102:4740 103:33147 104:5749 105:931 106:931 107:2996 108:1790 109:3975 110:2242 111:4236 112:3199 113:1956 114:2606 115:2318 116:2121 117:3885 118:2984 119:2133 120:2863 121:1835 122:3060 123:2224 124:1983 125:3021 126:156 128:1594 129:974 130:1749 131:2582 132:925 133:484 134:1814 135:662 136:1575 137:1404 138:3428 139:1826 140:1873 141:1874 142:2707 143:2340 144:1916 145:716 146:2231 147:2436 148:2886 149:3739 150:1501 151:3176 152:2697 153:2155 154:8760 155:2393 156:3889 157:2565 158:1655 159:2977 160:4125 161:2137 162:4244 163:2760 164:2479 165:2805 166:1220 167:2417 168:4255 169:956 170:5622 171:1135 172:4950 173:3482 174:895 175:1423 176:4064 177:5620 178:4700 179:2776 180:3505 181:4691 182:4094 183:2902 184:2214 185:22077 186:6521 187:5828 188:4827 189:4840 190:9944 191:1948 192:11848 193:9611 194:7980 195:5975 196:3402 197:3259 198:6267 199:6135 200:8327 201:6917 202:10678 203:10707 204:4755 205:3713 206:4465 207:3898 208:4336 209:5462 210:4752 211:2732 212:5237 213:4121 214:1030 215:48 216:7356 217:3831 218:1926 219:414 220:2243 221:1472 222:981 223:3633 End of report