Routing Table Report 04:00 +10GMT Sun 01 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 403590
Prefixes after maximum aggregation: 171764
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 195921
Total ASes present in the Internet Routing Table: 40543
Prefixes per ASN: 9.95
Origin-only ASes present in the Internet Routing Table: 32961
Origin ASes announcing only one prefix: 15469
Transit ASes present in the Internet Routing Table: 5422
Transit-only ASes present in the Internet Routing Table: 139
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 32
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 561
Unregistered ASNs in the Routing Table: 270
Number of 32-bit ASNs allocated by the RIRs: 2342
Number of 32-bit ASNs visible in the Routing Table: 2160
Prefixes from 32-bit ASNs in the Routing Table: 5298
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 1278
Number of addresses announced to Internet: 2531366984
Equivalent to 150 /8s, 225 /16s and 152 /24s
Percentage of available address space announced: 68.3
Percentage of allocated address space announced: 68.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 171321
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 98913
Total APNIC prefixes after maximum aggregation: 32177
APNIC Deaggregation factor: 3.07
Prefixes being announced from the APNIC address blocks: 95312
Unique aggregates announced from the APNIC address blocks: 39369
APNIC Region origin ASes present in the Internet Routing Table: 4683
APNIC Prefixes per ASN: 20.35
APNIC Region origin ASes announcing only one prefix: 1239
APNIC Region transit ASes present in the Internet Routing Table: 731
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 170
Number of APNIC addresses announced to Internet: 642339424
Equivalent to 38 /8s, 73 /16s and 82 /24s
Percentage of available APNIC address space announced: 81.5
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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, 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: 149049
Total ARIN prefixes after maximum aggregation: 75895
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 120565
Unique aggregates announced from the ARIN address blocks: 49930
ARIN Region origin ASes present in the Internet Routing Table: 14928
ARIN Prefixes per ASN: 8.08
ARIN Region origin ASes announcing only one prefix: 5682
ARIN Region transit ASes present in the Internet Routing Table: 1574
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 805098432
Equivalent to 47 /8s, 252 /16s and 211 /24s
Percentage of available ARIN address space announced: 64.0
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, 393216-394239
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,
53/8, 54/8, 55/8, 56/8, 57/8, 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, 173/8,
174/8, 184/8, 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: 100810
Total RIPE prefixes after maximum aggregation: 53213
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 92093
Unique aggregates announced from the RIPE address blocks: 57209
RIPE Region origin ASes present in the Internet Routing Table: 16350
RIPE Prefixes per ASN: 5.63
RIPE Region origin ASes announcing only one prefix: 7950
RIPE Region transit ASes present in the Internet Routing Table: 2624
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1464
Number of RIPE addresses announced to Internet: 502215944
Equivalent to 29 /8s, 239 /16s and 53 /24s
Percentage of available RIPE address space announced: 80.9
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
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 40249
Total LACNIC prefixes after maximum aggregation: 8116
LACNIC Deaggregation factor: 4.96
Prefixes being announced from the LACNIC address blocks: 39827
Unique aggregates announced from the LACNIC address blocks: 19738
LACNIC Region origin ASes present in the Internet Routing Table: 1573
LACNIC Prefixes per ASN: 25.32
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 294
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 21
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 505
Number of LACNIC addresses announced to Internet: 98683264
Equivalent to 5 /8s, 225 /16s and 201 /24s
Percentage of available LACNIC address space announced: 65.4
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8864
Total AfriNIC prefixes after maximum aggregation: 2113
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6921
Unique aggregates announced from the AfriNIC address blocks: 2160
AfriNIC Region origin ASes present in the Internet Routing Table: 522
AfriNIC Prefixes per ASN: 13.26
AfriNIC Region origin ASes announcing only one prefix: 162
AfriNIC Region transit ASes present in the Internet Routing Table: 115
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 31511296
Equivalent to 1 /8s, 224 /16s and 211 /24s
Percentage of available AfriNIC address space announced: 47.0
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 2492 11109 992 Korea Telecom (KIX)
17974 1786 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1659 301 89 TPG Internet Pty Ltd
4755 1573 386 158 TATA Communications formerly
9583 1236 94 541 Sify Limited
9829 1208 1025 29 BSNL National Internet Backbo
7552 1173 1062 11 Vietel Corporation
4808 1101 2050 316 CNCGROUP IP network: China169
24560 1021 385 167 Bharti Airtel Ltd., Telemedia
18101 950 131 160 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3378 3807 196 bellsouth.net, inc.
7029 3327 972 292 Windstream Communications Inc
18566 2092 383 179 Covad Communications
1785 1889 680 129 PaeTec Communications, Inc.
20115 1633 1559 624 Charter Communications
4323 1604 1060 382 Time Warner Telecom
22773 1552 2910 111 Cox Communications, Inc.
30036 1417 257 747 Mediacom Communications Corp
7018 1278 9775 829 AT&T WorldNet Services
11492 1184 216 364 Cable One
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1766 544 16 Corbina telecom
2118 1394 97 14 EUnet/RELCOM Autonomous Syste
31148 677 37 9 FreeNet ISP
34984 673 188 174 BILISIM TELEKOM
12479 656 658 57 Uni2 Autonomous System
20940 648 206 498 Akamai Technologies European
6830 641 1943 412 UPC Distribution Services
8551 571 360 81 Bezeq International
3320 532 8442 398 Deutsche Telekom AG
2578 500 33 7 Demos, Moscow, Russia
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1820 331 131 TVCABLE BOGOTA
28573 1745 1105 60 NET Servicos de Comunicao S.A
6503 1500 418 65 AVANTEL, S.A.
8151 1366 3018 346 UniNet S.A. de C.V.
7303 1353 827 189 Telecom Argentina Stet-France
26615 901 696 31 Tim Brasil S.A.
27947 670 74 100 Telconet S.A
11172 636 91 73 Servicios Alestra S.A de C.V
22047 584 326 15 VTR PUNTO NET S.A.
3816 568 242 100 Empresa Nacional de Telecomun
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1294 958 13 TEDATA
24863 848 274 35 LINKdotNET AS number
6713 493 649 18 Itissalat Al-MAGHRIB
3741 272 924 229 The Internet Solution
12258 197 28 62 Vodacom Internet Company
33776 182 12 21 Starcomms Nigeria Limited
24835 178 80 8 RAYA Telecom - Egypt
15706 168 32 6 Sudatel Internet Exchange Aut
16637 164 664 82 MTN Network Solutions
29571 159 15 16 Ci Telecom Autonomous system
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3378 3807 196 bellsouth.net, inc.
7029 3327 972 292 Windstream Communications Inc
4766 2492 11109 992 Korea Telecom (KIX)
18566 2092 383 179 Covad Communications
1785 1889 680 129 PaeTec Communications, Inc.
10620 1820 331 131 TVCABLE BOGOTA
17974 1786 503 63 PT TELEKOMUNIKASI INDONESIA
8402 1766 544 16 Corbina telecom
28573 1745 1105 60 NET Servicos de Comunicao S.A
7545 1659 301 89 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3327 3035 Windstream Communications Inc
18566 2092 1913 Covad Communications
1785 1889 1760 PaeTec Communications, Inc.
8402 1766 1750 Corbina telecom
17974 1786 1723 PT TELEKOMUNIKASI INDONESIA
10620 1820 1689 TVCABLE BOGOTA
28573 1745 1685 NET Servicos de Comunicao S.A
7545 1659 1570 TPG Internet Pty Ltd
4766 2492 1500 Korea Telecom (KIX)
22773 1552 1441 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
54439 UNALLOCATED 8.25.174.0/24 17378 DBS International
54470 UNALLOCATED 8.30.171.0/24 3356 Level 3 Communicatio
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
23.27.0.0/20 54500 EGIHosting
23.27.16.0/20 54500 EGIHosting
Complete listing at http://thyme.rand.apnic.net/current/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 /8:19 /9:12 /10:28 /11:81 /12:235
/13:457 /14:833 /15:1483 /16:12182 /17:6274 /18:10474
/19:20579 /20:28747 /21:29733 /22:40353 /23:37550 /24:211086
/25:1192 /26:1434 /27:797 /28:14 /29:7 /30:5
/31:0 /32:15
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3036 3327 Windstream Communications Inc
6389 2095 3378 bellsouth.net, inc.
18566 2041 2092 Covad Communications
8402 1743 1766 Corbina telecom
10620 1709 1820 TVCABLE BOGOTA
30036 1361 1417 Mediacom Communications Corp
6503 1261 1500 AVANTEL, S.A.
11492 1147 1184 Cable One
8452 1102 1294 TEDATA
1785 1067 1889 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:531 2:749 4:14 6:3 8:394 12:1989
13:1 14:603 15:12 16:3 17:7 20:8
23:160 24:1756 27:1255 31:937 32:58 33:2
34:2 36:8 37:315 38:785 40:120 41:3054
42:132 44:3 46:1453 47:3 49:342 50:534
52:13 54:6 55:10 56:3 57:32 58:965
59:494 60:278 61:1203 62:971 63:1992 64:4170
65:2260 66:4494 67:2022 68:1147 69:3185 70:910
71:465 72:1817 74:2577 75:492 76:317 77:959
78:1007 79:499 80:1210 81:899 82:666 83:549
84:516 85:1205 86:408 87:901 88:342 89:1621
90:297 91:4667 92:517 93:1356 94:1477 95:1162
96:377 97:316 98:845 99:37 100:7 101:167
103:928 106:65 107:180 108:220 109:1256 110:758
111:906 112:445 113:594 114:628 115:781 116:911
117:721 118:907 119:1206 120:340 121:696 122:1667
123:1102 124:1365 125:1263 128:558 129:192 130:257
131:596 132:172 133:21 134:241 135:62 136:212
137:176 138:351 139:144 140:383 141:244 142:386
143:399 144:510 145:66 146:483 147:237 148:762
149:298 150:154 151:176 152:459 153:172 154:7
155:428 156:215 157:375 158:176 159:525 160:343
161:248 162:343 163:189 164:555 165:391 166:562
167:464 168:819 169:127 170:843 171:125 172:4
173:1725 174:586 175:437 176:453 177:622 178:1310
180:1196 181:74 182:776 183:277 184:448 185:1
186:2149 187:1026 188:1186 189:1783 190:5546 192:5993
193:5599 194:4609 195:3591 196:1286 197:123 198:3615
199:4480 200:5820 201:1907 202:8461 203:8584 204:4340
205:2474 206:2745 207:2780 208:4050 209:3598 210:2764
211:1452 212:1983 213:1907 214:875 215:108 216:5072
217:1523 218:540 219:321 220:1230 221:555 222:325
223:329
End of report
