This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from Guam's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . IPv4 R&E Routing Table Report 21:25 GMT Sat 19 Jul, 2025 IPv4 BGP Table (Global) as seen at Guam. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Guam/ Analysis Summary ---------------- BGP routing table entries examined: 988652 Prefixes after maximum aggregation (per Origin AS): 382831 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 486927 Number of IPv4 prefixes with a valid ROA: 555735 Number of IPv4 prefixes with an invalid ROA: 20 Number of IPv4 prefixes with no ROA: 432897 Total ASes present in the Internet Routing Table: 76974 Prefixes per ASN: 12.84 Origin-only ASes present in the Internet Routing Table: 65878 Origin ASes announcing only one prefix: 26925 Transit ASes present in the Internet Routing Table: 11096 Transit-only ASes present in the Internet Routing Table: 566 Paths with bogon ASNs present in the IPv4 Routing Table: 62 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 52 Max AS path prepend of ASN ( 7438) 33 Prefixes from unregistered ASNs in the Routing Table: 1112 Number of instances of unregistered ASNs: 1147 Number of 32-bit ASNs allocated by the RIRs: 46890 Number of 32-bit ASNs visible in the Routing Table: 38549 Prefixes from 32-bit ASNs in the Routing Table: 205488 Number of bogon 32-bit ASNs visible in the Routing Table: 84 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 321 Number of addresses announced to Internet: 3106995265 Equivalent to 185 /8s, 48 /16s and 252 /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: 323222 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 260996 Total APNIC prefixes after maximum aggregation: 77697 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 252168 Unique aggregates announced from the APNIC address blocks: 104954 APNIC Region origin ASes present in the Internet Routing Table: 14693 APNIC Prefixes per ASN: 17.16 APNIC Region origin ASes announcing only one prefix: 4500 APNIC Region transit ASes present in the Internet Routing Table: 1980 Average APNIC Region AS path length visible: 5.2 Max APNIC Region AS path length visible: 35 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10233 Number of APNIC addresses announced to Internet: 749238080 Equivalent to 44 /8s, 168 /16s and 119 /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: 291813 Total ARIN prefixes after maximum aggregation: 132067 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 293219 Unique aggregates announced from the ARIN address blocks: 141194 ARIN Region origin ASes present in the Internet Routing Table: 19234 ARIN Prefixes per ASN: 15.24 ARIN Region origin ASes announcing only one prefix: 7032 ARIN Region transit ASes present in the Internet Routing Table: 2007 Average ARIN Region AS path length visible: 4.8 Max ARIN Region AS path length visible: 34 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5253 Number of ARIN addresses announced to Internet: 1349310976 Equivalent to 80 /8s, 108 /16s and 218 /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: 275755 Total RIPE prefixes after maximum aggregation: 135886 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 274865 Unique aggregates announced from the RIPE address blocks: 177400 RIPE Region origin ASes present in the Internet Routing Table: 28944 RIPE Prefixes per ASN: 9.50 RIPE Region origin ASes announcing only one prefix: 12053 RIPE Region transit ASes present in the Internet Routing Table: 4002 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12559 Number of RIPE addresses announced to Internet: 732198849 Equivalent to 43 /8s, 164 /16s and 119 /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: 124642 Total LACNIC prefixes after maximum aggregation: 29722 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 120983 Unique aggregates announced from the LACNIC address blocks: 49182 LACNIC Region origin ASes present in the Internet Routing Table: 11255 LACNIC Prefixes per ASN: 10.75 LACNIC Region origin ASes announcing only one prefix: 2653 LACNIC Region transit ASes present in the Internet Routing Table: 2531 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 37 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9219 Number of LACNIC addresses announced to Internet: 171071296 Equivalent to 10 /8s, 50 /16s and 87 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 34334 Total AfriNIC prefixes after maximum aggregation: 6725 AfriNIC Deaggregation factor: 5.11 Prefixes being announced from the AfriNIC address blocks: 47096 Unique aggregates announced from the AfriNIC address blocks: 13931 AfriNIC Region origin ASes present in the Internet Routing Table: 1916 AfriNIC Prefixes per ASN: 24.58 AfriNIC Region origin ASes announcing only one prefix: 687 AfriNIC Region transit ASes present in the Internet Routing Table: 387 Average AfriNIC Region AS path length visible: 6.2 Max AfriNIC Region AS path length visible: 32 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1285 Number of AfriNIC addresses announced to Internet: 104976128 Equivalent to 6 /8s, 65 /16s and 207 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & 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 11823 8762 116 CHINAMOBILE-CN China Mobile Communication 7545 6147 839 612 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4474 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4445 535 311 BBIL-AP BHARTI Airtel Ltd., IN 7552 3918 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3702 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3278 1868 100 VNPT-AS-VN VNPT Corp, VN 24560 2905 863 520 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2741 812 179 CMNET-JIANGSU-AP China Mobile communicati 4755 2181 434 191 TATACOMM-AS TATA Communications formerly Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13698 40975 5285 AMAZON-02, US 11492 4810 319 622 CABLEONE, US 7155 3855 286 85 VIASAT-SP-BACKBONE, US 6327 3637 1320 82 SHAW, CA 174 3461 8771 860 COGENT-174, US 22773 3339 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3223 54766 2474 DNIC-AS-00749, US 396982 3195 3855 431 GOOGLE-CLOUD-PLATFORM, US 16625 2925 1234 2181 AKAMAI-AS, US 4155 2864 217 1731 USDA-1, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7602 1712 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3925 3395 138 AKAMAI-ASN1, NL 9009 3787 360 2108 M247, RO 12389 3119 2317 872 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2403 361 583 TELLCOM-AS, TR 212238 2322 164 1690 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1545 1852 14 TE-AS TE-AS, EG 203020 1475 163 648 HOSTROYALE, IN Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12308 3255 574 UNINET, MX 10620 3514 482 1020 Telmex Colombia S.A., CO 13999 2529 511 349 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1370 2435 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1346 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1195 371 22 Telefonica del Peru S.A.A., PE 11664 1179 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1069 68 372 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1022 373 162 Axtel, S.A.B. de C.V., MX Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1733 660 28 RAYA-AS, EG 29571 1607 102 33 ORANGE-COTE-IVOIRE, CI 36903 1249 554 96 MT-MPLS, MA 36992 1221 1482 324 ETISALAT-MISR, EG 24863 1213 389 22 LINKdotNET-AS, EG 37069 1101 1112 11 MOBINIL, EG 36935 822 520 43 Vodafone-, EG 36914 578 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 15399 542 57 60 WANANCHI-, KE Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13698 40975 5285 AMAZON-02, US 8151 12308 3255 574 UNINET, MX 9808 11823 8762 116 CHINAMOBILE-CN China Mobile Communication 12479 7602 1712 148 UNI2-AS, ES 7545 6147 839 612 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4810 319 622 CABLEONE, US 39891 4798 293 63 ALJAWWALSTC-AS, SA 18403 4474 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4445 535 311 BBIL-AP BHARTI Airtel Ltd., IN 20940 3925 3395 138 AKAMAI-ASN1, NL Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 8151 12308 11734 UNINET, MX 9808 11823 11707 CHINAMOBILE-CN China Mobile Communications Grou 12479 7602 7454 UNI2-AS, ES 7545 6147 5535 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4474 4449 FPT-AS-AP FPT Telecom Company, VN 11492 4810 4188 CABLEONE, US 9498 4445 4134 BBIL-AP BHARTI Airtel Ltd., IN 7552 3918 3891 VIETEL-AS-AP Viettel Group, VN 20940 3925 3787 AKAMAI-ASN1, NL Complete listing at https://bgp.nsrc.org/REN/Guam/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 398074 UNALLOCATED 8.28.115.0/24 32787 PROLEXIC-TECHNOLOGIES-D 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, US 23.147.225.0/24 Origin: 27392 639-DATACENTERS, US 23.147.225.0/24 Transit: 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Guam/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 /10:41 /11:92 /12:298 /13:578 /14:1200 /15:2129 /16:13770 /17:8198 /18:13462 /19:24515 /20:44151 /21:51717 /22:111702 /23:102660 /24:613352 /25:137 /26:113 /27:103 /28:20 /29:72 /30:8 /31:0 /32:304 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6544 7602 UNI2-AS, ES 8151 6528 12308 UNINET, MX 11492 3604 4810 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3433 3637 SHAW, CA 7155 2814 3855 VIASAT-SP-BACKBONE, US 22773 2493 3339 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2352 13698 AMAZON-02, US 30036 2270 2611 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2201 3514 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Guam/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2418 2:1493 3:854 4:12 5:4716 6:163 7:6 8:1551 9:1 11:172 12:1335 13:459 14:2557 15:365 16:286 17:379 18:896 20:558 21:4 22:188 23:7701 24:2725 25:2 27:2751 29:19 31:3343 32:35 33:1 34:80 35:261 36:3626 37:4561 38:9455 39:911 40:253 41:4205 42:1977 43:2660 44:369 45:18598 46:5088 47:336 49:1889 50:1949 51:591 52:1554 54:327 55:1113 56:11 57:272 58:2180 59:1277 60:1174 61:2833 62:2967 63:1798 64:5537 65:2162 66:4721 67:3101 68:1088 69:3974 70:1046 71:622 72:2849 74:2789 75:1512 76:602 77:2758 78:1900 79:1692 80:2198 81:2042 82:3179 83:1442 84:1891 85:3456 86:1087 87:2123 88:1312 89:4424 90:778 91:8409 92:2698 93:2944 94:4067 95:4398 96:1488 97:310 98:955 99:696 100:71 101:1182 102:3862 103:32090 104:5211 105:765 106:969 107:2639 108:1179 109:4169 110:2225 111:3309 112:2234 113:1858 114:1955 115:2175 116:2054 117:2577 118:2889 119:1915 120:2133 121:1336 122:2796 123:2225 124:1651 125:2874 126:91 128:1621 129:966 130:1303 131:2034 132:774 133:450 134:1645 135:350 136:1450 137:1265 138:2826 139:1582 140:1635 141:1516 142:1907 143:1989 144:1175 145:562 146:2165 147:2102 148:2711 149:2935 150:1225 151:2226 152:2071 153:589 154:7572 155:1846 156:3089 157:1933 158:1341 159:2512 160:3604 161:1888 162:3861 163:2241 164:1847 165:2346 166:1520 167:2022 168:3993 169:782 170:5120 171:1006 172:4220 173:3389 174:918 175:1314 176:3722 177:4752 178:3931 179:2301 180:2587 181:4121 182:3504 183:2124 184:2102 185:21575 186:5221 187:4679 188:4273 189:4340 190:9556 191:1502 192:11342 193:9472 194:7785 195:5595 196:3291 197:3197 198:6123 199:8602 200:8222 201:6387 202:10289 203:10529 204:4650 205:3610 206:4529 207:3550 208:4290 209:5131 210:4541 211:2588 212:4562 213:3820 214:1023 215:46 216:6738 217:3210 218:1377 219:393 220:2137 221:1191 222:740 223:2675 End of report