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 28 Feb, 2026 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: 1052659 Prefixes after maximum aggregation (per Origin AS): 398428 Deaggregation factor: 2.64 Unique aggregates announced (without unneeded subnets): 509960 Number of IPv4 prefixes with a valid ROA: 627337 Number of IPv4 prefixes with an invalid ROA: 341 Number of IPv4 prefixes with no ROA: 424981 Total ASes present in the Internet Routing Table: 78109 Prefixes per ASN: 13.48 Origin-only ASes present in the Internet Routing Table: 66797 Origin ASes announcing only one prefix: 27234 Transit ASes present in the Internet Routing Table: 11312 Transit-only ASes present in the Internet Routing Table: 588 Paths with bogon ASNs present in the IPv4 Routing Table: 50 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 250 Max AS path prepend of ASN ( 17210) 245 Prefixes from unregistered ASNs in the Routing Table: 1126 Number of instances of unregistered ASNs: 1159 Number of 32-bit ASNs allocated by the RIRs: 48897 Number of 32-bit ASNs visible in the Routing Table: 40012 Prefixes from 32-bit ASNs in the Routing Table: 225359 Number of bogon 32-bit ASNs visible in the Routing Table: 84 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 438 Number of addresses announced to Internet: 3118632484 Equivalent to 185 /8s, 226 /16s and 142 /24s Percentage of available address space announced: 84.2 Percentage of allocated address space announced: 84.2 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: 339309 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 293049 Total APNIC prefixes after maximum aggregation: 83051 APNIC Deaggregation factor: 3.53 Prefixes being announced from the APNIC address blocks: 280316 Unique aggregates announced from the APNIC address blocks: 107386 APNIC Region origin ASes present in the Internet Routing Table: 15161 APNIC Prefixes per ASN: 18.49 APNIC Region origin ASes announcing only one prefix: 4635 APNIC Region transit ASes present in the Internet Routing Table: 2054 Average APNIC Region AS path length visible: 5.4 Max APNIC Region AS path length visible: 54 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10684 Number of APNIC addresses announced to Internet: 757508160 Equivalent to 45 /8s, 38 /16s and 168 /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: 306421 Total ARIN prefixes after maximum aggregation: 136559 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 304926 Unique aggregates announced from the ARIN address blocks: 147134 ARIN Region origin ASes present in the Internet Routing Table: 19422 ARIN Prefixes per ASN: 15.70 ARIN Region origin ASes announcing only one prefix: 7093 ARIN Region transit ASes present in the Internet Routing Table: 2006 Average ARIN Region AS path length visible: 4.9 Max ARIN Region AS path length visible: 250 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5496 Number of ARIN addresses announced to Internet: 1352726016 Equivalent to 80 /8s, 160 /16s and 246 /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: 285626 Total RIPE prefixes after maximum aggregation: 140793 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 288271 Unique aggregates announced from the RIPE address blocks: 186124 RIPE Region origin ASes present in the Internet Routing Table: 29248 RIPE Prefixes per ASN: 9.86 RIPE Region origin ASes announcing only one prefix: 12134 RIPE Region transit ASes present in the Internet Routing Table: 4081 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 37 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13095 Number of RIPE addresses announced to Internet: 733028480 Equivalent to 43 /8s, 177 /16s and 32 /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: 128788 Total LACNIC prefixes after maximum aggregation: 30380 LACNIC Deaggregation factor: 4.24 Prefixes being announced from the LACNIC address blocks: 124457 Unique aggregates announced from the LACNIC address blocks: 49636 LACNIC Region origin ASes present in the Internet Routing Table: 11355 LACNIC Prefixes per ASN: 10.96 LACNIC Region origin ASes announcing only one prefix: 2658 LACNIC Region transit ASes present in the Internet Routing Table: 2577 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9361 Number of LACNIC addresses announced to Internet: 170895968 Equivalent to 10 /8s, 47 /16s and 170 /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: 37649 Total AfriNIC prefixes after maximum aggregation: 6936 AfriNIC Deaggregation factor: 5.43 Prefixes being announced from the AfriNIC address blocks: 54250 Unique aggregates announced from the AfriNIC address blocks: 19299 AfriNIC Region origin ASes present in the Internet Routing Table: 2007 AfriNIC Prefixes per ASN: 27.03 AfriNIC Region origin ASes announcing only one prefix: 714 AfriNIC Region transit ASes present in the Internet Routing Table: 393 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 63 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1376 Number of AfriNIC addresses announced to Internet: 103227904 Equivalent to 6 /8s, 39 /16s and 34 /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 13926 9125 162 CHINAMOBILE-CN China Mobile Communication 7545 5990 831 541 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4839 4192 76 ERX-CERNET-BKB China Education and Resear 9498 4807 546 330 BBIL-AP BHARTI Airtel Ltd., IN 18403 4532 347 24 FPT-AS-AP FPT Telecom Company, VN 45899 4409 1873 53 VNPT-AS-VN VNPT Corp, VN 7552 4050 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3672 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3615 908 229 CMNET-JIANGSU-AP China Mobile communicati 24560 2981 863 510 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 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 14401 41220 5554 AMAZON-02 - Amazon.com, Inc., US 174 5439 8766 849 COGENT-174 - Cogent Communications, LLC, 22773 4782 3102 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4640 308 1017 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3709 1321 71 SHAW - Shaw Communications, CA 396982 3288 4856 484 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3142 54728 2393 DNIC-AS-00749 - United States Department 16625 2769 1209 2124 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2700 221 890 AS-COLOCROSSING - HostPapa, 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 7232 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 20940 3860 3393 115 AKAMAI-ASN1, NL 9009 3826 355 2252 M247, RO 12389 3178 2319 873 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2657 192 1948 CDNEXT, GB 34984 2470 366 577 TELLCOM-AS, TR 8452 1699 1853 19 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1604 243 782 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 12754 3301 599 UNINET, MX 10620 3451 457 1105 Telmex Colombia S.A., CO 13999 2453 506 349 Mega Cable, S.A. de C.V., MX 11830 1958 369 65 Instituto Costarricense de Electricidad y 11664 1442 278 33 Techtel LMDS Comunicaciones Interactivas 28573 1377 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1249 371 22 INTEGRATEL PERU S.A.A., PE 22884 1060 67 360 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1060 2475 94 TIM SA, BR 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 2012 648 34 RAYA-AS, EG 36992 1846 1532 339 ETISALAT-MISR, EG 24863 1285 389 16 LINKdotNET-AS, EG 36935 1246 523 46 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1115 1100 11 MOBINIL, EG 29571 1073 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 328608 565 47 167 Africa-on-Cloud-AS, ZA 15399 557 58 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 14401 41220 5554 AMAZON-02 - Amazon.com, Inc., US 9808 13926 9125 162 CHINAMOBILE-CN China Mobile Communication 8151 12754 3301 599 UNINET, MX 12479 7232 1711 149 UNI2-AS, ES 7545 5990 831 541 TPG-INTERNET-AP TPG Telecom Limited, AU 174 5439 8766 849 COGENT-174 - Cogent Communications, LLC, 39891 4969 306 72 ALJAWWALSTC-AS, SA 4538 4839 4192 76 ERX-CERNET-BKB China Education and Resear 9498 4807 546 330 BBIL-AP BHARTI Airtel Ltd., IN 22773 4782 3102 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13926 13764 CHINAMOBILE-CN China Mobile Communications Grou 8151 12754 12155 UNINET, MX 12479 7232 7083 UNI2-AS, ES 7545 5990 5449 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 4538 4839 4763 ERX-CERNET-BKB China Education and Research Net 174 5439 4590 COGENT-174 - Cogent Communications, LLC, US 18403 4532 4508 FPT-AS-AP FPT Telecom Company, VN 9498 4807 4477 BBIL-AP BHARTI Airtel Ltd., IN 22773 4782 4414 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 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 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887 - C 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 13450 UNALLOCATED 8.29.117.0/24 55002 DEFENSE-NET - F5, Inc., 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 33491 COMCAST-33491 - Comcast 397665 UNALLOCATED 12.24.28.0/24 7018 ATT-INTERNET4 - AT&T En Complete listing at https://bgp.nsrc.org/REN/Guam/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 10.2.3.8/30 21996 GUAMCELL - GUAMCELL Communications, US 192.88.99.0/24 6939 HURRICANE - Hurricane Electric LLC, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-spar 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: 3605 ERX-KUENTOS-AS Guam Cablevision, LLC., G 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/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 /10:40 /11:95 /12:300 /13:586 /14:1205 /15:2122 /16:13809 /17:8490 /18:14186 /19:26189 /20:47182 /21:53552 /22:114974 /23:109279 /24:659888 /25:74 /26:83 /27:114 /28:40 /29:65 /30:10 /31:4 /32:342 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6925 12754 UNINET, MX 12479 6162 7232 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3500 4640 CABLEONE - CABLE ONE, INC., US 6327 3488 3709 SHAW - Shaw Communications, CA 22773 3050 4782 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2612 14401 AMAZON-02 - Amazon.com, Inc., US 30036 2311 2657 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2231 3451 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) ---------------------------------------------- 1:2577 2:1495 3:977 4:11 5:5004 6:192 7:6 8:1539 9:26 11:172 12:1192 13:645 14:2733 15:455 16:177 17:402 18:923 20:609 21:4 22:188 23:8211 24:2630 25:2 27:2848 29:19 31:3401 32:34 34:85 35:291 36:4672 37:4470 38:11414 39:1270 40:424 41:4655 42:2057 43:3111 44:441 45:20027 46:4919 47:422 48:71 49:2247 50:2080 51:599 52:1283 54:267 55:1018 56:11 57:322 58:2582 59:1476 60:1184 61:3381 62:3155 63:1768 64:6239 65:2115 66:6041 67:3260 68:1501 69:4242 70:1032 71:621 72:3083 74:2981 75:1498 76:591 77:2788 78:1897 79:1811 80:2365 81:2189 82:4055 83:1458 84:2053 85:3814 86:1110 87:2371 88:1351 89:4710 90:812 91:8461 92:2849 93:3021 94:4383 95:4542 96:1447 97:313 98:950 99:799 100:67 101:1625 102:4610 103:32823 104:5489 105:1061 106:943 107:2855 108:1200 109:4273 110:2305 111:4165 112:3175 113:2107 114:2204 115:2350 116:2224 117:3507 118:3094 119:2181 120:2744 121:1602 122:3017 123:2456 124:1831 125:3047 126:121 128:1681 129:958 130:1612 131:2423 132:790 133:478 134:1637 135:568 136:1632 137:1366 138:3157 139:1704 140:1806 141:1599 142:2504 143:2147 144:1731 145:630 146:2209 147:2166 148:2798 149:3057 150:1339 151:2686 152:2284 153:1021 154:9773 155:2300 156:4429 157:2287 158:1503 159:2773 160:3765 161:1967 162:4020 163:2401 164:2027 165:2626 166:1293 167:2245 168:4021 169:892 170:5571 171:1137 172:4569 173:3452 174:884 175:1404 176:3802 177:4864 178:4351 179:2344 180:3167 181:4558 182:3999 183:2868 184:2010 185:21712 186:5911 187:4965 188:4577 189:4555 190:9878 191:1605 192:11497 193:9595 194:7937 195:5794 196:3307 197:3312 198:6163 199:6124 200:8256 201:6426 202:11152 203:10966 204:4730 205:3726 206:4567 207:3884 208:4402 209:5387 210:5183 211:2872 212:5022 213:4105 214:1073 215:51 216:7226 217:3530 218:1981 219:654 220:2335 221:1338 222:1435 223:3367 End of report