Routing Table Report 04:00 +10GMT Thu 23 Feb, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 398478
Prefixes after maximum aggregation: 169958
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 193187
Total ASes present in the Internet Routing Table: 40175
Prefixes per ASN: 9.92
Origin-only ASes present in the Internet Routing Table: 32767
Origin ASes announcing only one prefix: 15525
Transit ASes present in the Internet Routing Table: 5415
Transit-only ASes present in the Internet Routing Table: 143
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 330
Unregistered ASNs in the Routing Table: 130
Number of 32-bit ASNs allocated by the RIRs: 2289
Number of 32-bit ASNs visible in the Routing Table: 1993
Prefixes from 32-bit ASNs in the Routing Table: 4803
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 266
Number of addresses announced to Internet: 2519634256
Equivalent to 150 /8s, 46 /16s and 145 /24s
Percentage of available address space announced: 68.0
Percentage of allocated address space announced: 68.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 169409
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 98078
Total APNIC prefixes after maximum aggregation: 31698
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 94396
Unique aggregates announced from the APNIC address blocks: 39166
APNIC Region origin ASes present in the Internet Routing Table: 4662
APNIC Prefixes per ASN: 20.25
APNIC Region origin ASes announcing only one prefix: 1241
APNIC Region transit ASes present in the Internet Routing Table: 736
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 151
Number of APNIC addresses announced to Internet: 638859872
Equivalent to 38 /8s, 20 /16s and 58 /24s
Percentage of available APNIC address space announced: 81.0
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: 148480
Total ARIN prefixes after maximum aggregation: 75373
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120310
Unique aggregates announced from the ARIN address blocks: 49544
ARIN Region origin ASes present in the Internet Routing Table: 14912
ARIN Prefixes per ASN: 8.07
ARIN Region origin ASes announcing only one prefix: 5674
ARIN Region transit ASes present in the Internet Routing Table: 1573
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: 15
Number of ARIN addresses announced to Internet: 805344704
Equivalent to 48 /8s, 0 /16s and 149 /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: 99382
Total RIPE prefixes after maximum aggregation: 52610
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 91094
Unique aggregates announced from the RIPE address blocks: 56671
RIPE Region origin ASes present in the Internet Routing Table: 16320
RIPE Prefixes per ASN: 5.58
RIPE Region origin ASes announcing only one prefix: 8004
RIPE Region transit ASes present in the Internet Routing Table: 2611
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1370
Number of RIPE addresses announced to Internet: 501003784
Equivalent to 29 /8s, 220 /16s and 182 /24s
Percentage of available RIPE address space announced: 80.7
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: 38588
Total LACNIC prefixes after maximum aggregation: 8104
LACNIC Deaggregation factor: 4.76
Prefixes being announced from the LACNIC address blocks: 38253
Unique aggregates announced from the LACNIC address blocks: 19475
LACNIC Region origin ASes present in the Internet Routing Table: 1574
LACNIC Prefixes per ASN: 24.30
LACNIC Region origin ASes announcing only one prefix: 442
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: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 453
Number of LACNIC addresses announced to Internet: 96696968
Equivalent to 5 /8s, 195 /16s and 122 /24s
Percentage of available LACNIC address space announced: 64.0
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: 8967
Total AfriNIC prefixes after maximum aggregation: 2081
AfriNIC Deaggregation factor: 4.31
Prefixes being announced from the AfriNIC address blocks: 6976
Unique aggregates announced from the AfriNIC address blocks: 2090
AfriNIC Region origin ASes present in the Internet Routing Table: 516
AfriNIC Prefixes per ASN: 13.52
AfriNIC Region origin ASes announcing only one prefix: 164
AfriNIC Region transit ASes present in the Internet Routing Table: 117
Average AfriNIC Region AS path length visible: 4.4
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: 31482624
Equivalent to 1 /8s, 224 /16s and 99 /24s
Percentage of available AfriNIC address space announced: 46.9
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 2485 11107 989 Korea Telecom (KIX)
17974 1725 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1643 303 84 TPG Internet Pty Ltd
4755 1557 385 156 TATA Communications formerly
7552 1282 1064 7 Vietel Corporation
9829 1182 997 29 BSNL National Internet Backbo
4808 1149 2113 318 CNCGROUP IP network: China169
9583 1126 84 483 Sify Limited
24560 1019 385 167 Bharti Airtel Ltd., Telemedia
18101 950 130 155 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 3438 3807 199 bellsouth.net, inc.
7029 3411 1014 159 Windstream Communications Inc
18566 2091 382 177 Covad Communications
1785 1872 680 126 PaeTec Communications, Inc.
20115 1629 1551 630 Charter Communications
4323 1607 1043 381 Time Warner Telecom
22773 1532 2910 110 Cox Communications, Inc.
30036 1412 253 748 Mediacom Communications Corp
19262 1390 4703 399 Verizon Global Networks
7018 1308 6980 849 AT&T WorldNet Services
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 1770 480 15 Corbina telecom
2118 1398 97 13 EUnet/RELCOM Autonomous Syste
15557 1099 2184 60 LDCOM NETWORKS
34984 658 188 172 BILISIM TELEKOM
6830 644 1927 413 UPC Distribution Services
20940 618 198 474 Akamai Technologies European
12479 608 644 55 Uni2 Autonomous System
8551 566 360 81 Bezeq International
31148 541 37 9 FreeNet ISP
3320 533 8450 399 Deutsche Telekom AG
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 1749 324 171 TVCABLE BOGOTA
28573 1671 1085 65 NET Servicos de Comunicao S.A
8151 1478 3007 348 UniNet S.A. de C.V.
7303 1264 758 183 Telecom Argentina Stet-France
26615 851 668 32 Tim Brasil S.A.
27947 662 67 108 Telconet S.A
11172 633 91 73 Servicios Alestra S.A de C.V
22047 581 322 17 VTR PUNTO NET S.A.
3816 552 237 91 Empresa Nacional de Telecomun
6503 552 418 66 AVANTEL, S.A.
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 1221 958 13 TEDATA
24863 834 274 37 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 277 923 228 The Internet Solution
33776 242 13 8 Starcomms Nigeria Limited
15706 227 32 6 Sudatel Internet Exchange Aut
29571 214 17 12 Ci Telecom Autonomous system
12258 197 28 62 Vodacom Internet Company
24835 194 80 8 RAYA Telecom - Egypt
16637 157 647 81 MTN Network Solutions
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 3438 3807 199 bellsouth.net, inc.
7029 3411 1014 159 Windstream Communications Inc
4766 2485 11107 989 Korea Telecom (KIX)
18566 2091 382 177 Covad Communications
1785 1872 680 126 PaeTec Communications, Inc.
8402 1770 480 15 Corbina telecom
10620 1749 324 171 TVCABLE BOGOTA
17974 1725 503 36 PT TELEKOMUNIKASI INDONESIA
28573 1671 1085 65 NET Servicos de Comunicao S.A
7545 1643 303 84 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 3411 3252 Windstream Communications Inc
18566 2091 1914 Covad Communications
8402 1770 1755 Corbina telecom
1785 1872 1746 PaeTec Communications, Inc.
17974 1725 1689 PT TELEKOMUNIKASI INDONESIA
28573 1671 1606 NET Servicos de Comunicao S.A
10620 1749 1578 TVCABLE BOGOTA
7545 1643 1559 TPG Internet Pty Ltd
4766 2485 1496 Korea Telecom (KIX)
22773 1532 1422 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
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,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser
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
23.27.0.0/16 18779 Guru.com
27.112.114.0/24 23884 Proimage Engineering and Comm
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 /10:27 /11:81 /12:232
/13:459 /14:811 /15:1472 /16:12155 /17:6217 /18:10389
/19:20473 /20:28348 /21:29283 /22:39895 /23:37044 /24:207910
/25:1179 /26:1433 /27:781 /28:168 /29:57 /30:14
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3067 3411 Windstream Communications Inc
6389 2110 3438 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1749 1770 Corbina telecom
10620 1646 1749 TVCABLE BOGOTA
30036 1362 1412 Mediacom Communications Corp
11492 1121 1158 Cable One
1785 1063 1872 PaeTec Communications, Inc.
15557 1046 1099 LDCOM NETWORKS
7011 1038 1154 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:504 2:723 4:14 6:3 8:385 12:1958
13:1 14:602 15:11 16:3 17:7 20:8
23:136 24:1728 27:1195 31:940 32:65 33:2
34:2 36:9 37:184 38:781 40:116 41:3123
42:96 43:1 44:3 46:1323 47:3 49:332
50:506 52:13 54:2 55:9 56:3 57:38
58:966 59:496 60:344 61:1191 62:966 63:2007
64:4111 65:2283 66:4457 67:2034 68:1175 69:3163
70:908 71:407 72:1789 74:2657 75:469 76:320
77:973 78:965 79:509 80:1222 81:878 82:630
83:527 84:585 85:1144 86:727 87:912 88:334
89:1559 90:283 91:4489 92:513 93:1352 94:1384
95:1116 96:419 97:312 98:834 99:38 100:4
101:154 103:824 106:66 107:160 108:171 109:1542
110:704 111:858 112:439 113:531 114:603 115:765
116:868 117:709 118:903 119:1258 120:365 121:686
122:1623 123:1077 124:1339 125:1316 128:539 129:190
130:218 131:580 132:164 133:21 134:234 135:62
136:215 137:182 138:287 139:144 140:486 141:260
142:393 143:405 144:517 145:69 146:485 147:236
148:734 149:301 150:163 151:198 152:447 153:172
154:7 155:396 156:213 157:369 158:162 159:517
160:321 161:245 162:342 163:187 164:531 165:392
166:559 167:458 168:765 169:148 170:838 171:116
172:4 173:1719 174:597 175:421 176:508 177:496
178:1275 180:1184 181:68 182:730 183:280 184:430
185:1 186:2005 187:855 188:1081 189:1180 190:5465
192:5983 193:5538 194:4345 195:3395 196:1285 197:167
198:3614 199:4412 200:5712 201:1739 202:8403 203:8630
204:4362 205:2441 206:2746 207:2797 208:4066 209:3552
210:2760 211:1479 212:2018 213:1842 214:856 215:101
216:5042 217:1503 218:548 219:340 220:1226 221:561
222:324 223:314
End of report