Routing Table Report 04:00 +10GMT Mon 13 Feb, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 397579
Prefixes after maximum aggregation: 169635
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 192391
Total ASes present in the Internet Routing Table: 40099
Prefixes per ASN: 9.91
Origin-only ASes present in the Internet Routing Table: 32742
Origin ASes announcing only one prefix: 15532
Transit ASes present in the Internet Routing Table: 5405
Transit-only ASes present in the Internet Routing Table: 147
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: 329
Unregistered ASNs in the Routing Table: 128
Number of 32-bit ASNs allocated by the RIRs: 2272
Number of 32-bit ASNs visible in the Routing Table: 1952
Prefixes from 32-bit ASNs in the Routing Table: 4683
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 142
Number of addresses announced to Internet: 2514366672
Equivalent to 149 /8s, 222 /16s and 48 /24s
Percentage of available address space announced: 67.8
Percentage of allocated address space announced: 67.8
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: 168840
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 98061
Total APNIC prefixes after maximum aggregation: 31690
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 94385
Unique aggregates announced from the APNIC address blocks: 39213
APNIC Region origin ASes present in the Internet Routing Table: 4655
APNIC Prefixes per ASN: 20.28
APNIC Region origin ASes announcing only one prefix: 1241
APNIC Region transit ASes present in the Internet Routing Table: 738
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 144
Number of APNIC addresses announced to Internet: 635847712
Equivalent to 37 /8s, 230 /16s and 68 /24s
Percentage of available APNIC address space announced: 80.6
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: 148245
Total ARIN prefixes after maximum aggregation: 75339
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120175
Unique aggregates announced from the ARIN address blocks: 49420
ARIN Region origin ASes present in the Internet Routing Table: 14911
ARIN Prefixes per ASN: 8.06
ARIN Region origin ASes announcing only one prefix: 5698
ARIN Region transit ASes present in the Internet Routing Table: 1572
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: 804408512
Equivalent to 47 /8s, 242 /16s and 76 /24s
Percentage of available ARIN address space announced: 63.9
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: 98875
Total RIPE prefixes after maximum aggregation: 52368
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 90698
Unique aggregates announced from the RIPE address blocks: 56095
RIPE Region origin ASes present in the Internet Routing Table: 16309
RIPE Prefixes per ASN: 5.56
RIPE Region origin ASes announcing only one prefix: 7995
RIPE Region transit ASes present in the Internet Routing Table: 2608
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: 1346
Number of RIPE addresses announced to Internet: 500696392
Equivalent to 29 /8s, 216 /16s and 5 /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: 38553
Total LACNIC prefixes after maximum aggregation: 8066
LACNIC Deaggregation factor: 4.78
Prefixes being announced from the LACNIC address blocks: 38171
Unique aggregates announced from the LACNIC address blocks: 19501
LACNIC Region origin ASes present in the Internet Routing Table: 1572
LACNIC Prefixes per ASN: 24.28
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 291
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 443
Number of LACNIC addresses announced to Internet: 96530568
Equivalent to 5 /8s, 192 /16s and 240 /24s
Percentage of available LACNIC address space announced: 63.9
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: 8986
Total AfriNIC prefixes after maximum aggregation: 2094
AfriNIC Deaggregation factor: 4.29
Prefixes being announced from the AfriNIC address blocks: 7008
Unique aggregates announced from the AfriNIC address blocks: 2153
AfriNIC Region origin ASes present in the Internet Routing Table: 509
AfriNIC Prefixes per ASN: 13.77
AfriNIC Region origin ASes announcing only one prefix: 159
AfriNIC Region transit ASes present in the Internet Routing Table: 116
Average AfriNIC Region AS path length visible: 4.6
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: 30896128
Equivalent to 1 /8s, 215 /16s and 112 /24s
Percentage of available AfriNIC address space announced: 46.0
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 2475 11102 983 Korea Telecom (KIX)
17974 1728 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1642 303 85 TPG Internet Pty Ltd
4755 1532 385 156 TATA Communications formerly
7552 1393 1064 7 Vietel Corporation
9829 1172 989 28 BSNL National Internet Backbo
4808 1147 2110 313 CNCGROUP IP network: China169
9583 1124 83 482 Sify Limited
24560 1014 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 3442 3807 201 bellsouth.net, inc.
7029 3391 1014 159 Windstream Communications Inc
18566 2092 382 177 Covad Communications
1785 1869 680 125 PaeTec Communications, Inc.
20115 1625 1550 631 Charter Communications
4323 1610 1062 385 Time Warner Telecom
22773 1512 2910 109 Cox Communications, Inc.
19262 1386 4687 396 Verizon Global Networks
30036 1385 244 750 Mediacom Communications Corp
7018 1307 6995 850 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 1753 480 15 Corbina telecom
2118 1385 97 13 EUnet/RELCOM Autonomous Syste
15557 1095 2161 63 LDCOM NETWORKS
34984 650 188 172 BILISIM TELEKOM
6830 644 1927 413 UPC Distribution Services
20940 608 195 470 Akamai Technologies European
12479 584 642 53 Uni2 Autonomous System
8551 575 360 81 Bezeq International
31148 538 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 1751 324 162 TVCABLE BOGOTA
28573 1654 1085 75 NET Servicos de Comunicao S.A
8151 1475 3003 342 UniNet S.A. de C.V.
7303 1263 758 182 Telecom Argentina Stet-France
26615 880 668 34 Tim Brasil S.A.
27947 651 67 103 Telconet S.A
11172 631 91 74 Servicios Alestra S.A de C.V
22047 581 322 17 VTR PUNTO NET S.A.
3816 551 237 91 Empresa Nacional de Telecomun
7738 550 1050 31 Telecomunicacoes da Bahia 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 1240 958 13 TEDATA
24863 830 156 44 LINKdotNET AS number
6713 486 649 18 Itissalat Al-MAGHRIB
3741 278 939 229 The Internet Solution
33776 236 13 14 Starcomms Nigeria Limited
15706 222 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 Vodacom Internet Company
24835 194 80 8 RAYA Telecom - Egypt
29571 189 17 11 Ci Telecom Autonomous system
16637 163 664 82 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 3442 3807 201 bellsouth.net, inc.
7029 3391 1014 159 Windstream Communications Inc
4766 2475 11102 983 Korea Telecom (KIX)
18566 2092 382 177 Covad Communications
1785 1869 680 125 PaeTec Communications, Inc.
8402 1753 480 15 Corbina telecom
10620 1751 324 162 TVCABLE BOGOTA
17974 1728 503 36 PT TELEKOMUNIKASI INDONESIA
28573 1654 1085 75 NET Servicos de Comunicao S.A
7545 1642 303 85 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 3391 3232 Windstream Communications Inc
18566 2092 1915 Covad Communications
1785 1869 1744 PaeTec Communications, Inc.
8402 1753 1738 Corbina telecom
17974 1728 1692 PT TELEKOMUNIKASI INDONESIA
10620 1751 1589 TVCABLE BOGOTA
28573 1654 1579 NET Servicos de Comunicao S.A
7545 1642 1557 TPG Internet Pty Ltd
4766 2475 1492 Korea Telecom (KIX)
22773 1512 1403 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
37.98.200.0/21 56687 Nimad Rah Khoozestan PLC
37.98.208.0/20 8374 Polkomtel S.A.
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 /11:80 /12:231
/13:458 /14:816 /15:1469 /16:12132 /17:6199 /18:10318
/19:20475 /20:28281 /21:29228 /22:39828 /23:36972 /24:207369
/25:1196 /26:1436 /27:775 /28:168 /29:59 /30:13
/31:0 /32:18
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3047 3391 Windstream Communications Inc
6389 2112 3442 bellsouth.net, inc.
18566 2041 2092 Covad Communications
8402 1732 1753 Corbina telecom
10620 1645 1751 TVCABLE BOGOTA
30036 1343 1385 Mediacom Communications Corp
11492 1118 1155 Cable One
1785 1065 1869 PaeTec Communications, Inc.
8452 1048 1240 TEDATA
15557 1045 1095 LDCOM NETWORKS
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:505 2:725 4:14 5:1 6:3 8:384
12:1960 13:1 14:592 15:11 16:3 17:7
20:9 23:131 24:1724 27:1197 31:946 32:65
33:2 34:2 36:9 37:177 38:778 40:115
41:3188 42:95 43:1 44:3 46:1280 47:3
49:322 50:514 52:13 54:2 55:10 56:3
57:38 58:961 59:492 60:344 61:1195 62:949
63:2004 64:4135 65:2284 66:4427 67:2037 68:1175
69:3159 70:927 71:412 72:1793 74:2653 75:463
76:322 77:979 78:936 79:503 80:1227 81:881
82:568 83:529 84:582 85:1156 86:742 87:920
88:334 89:1549 90:272 91:4482 92:541 93:1333
94:1356 95:1088 96:418 97:310 98:800 99:38
100:4 101:140 103:782 106:65 107:152 108:150
109:1486 110:696 111:847 112:435 113:530 114:598
115:764 116:864 117:725 118:898 119:1250 120:360
121:679 122:1622 123:1070 124:1337 125:1368 128:542
129:190 130:215 131:590 132:164 133:21 134:233
135:60 136:206 137:153 138:286 139:145 140:486
141:263 142:389 143:411 144:519 145:70 146:484
147:240 148:726 149:281 150:165 151:197 152:447
153:170 154:7 155:403 156:211 157:367 158:156
159:515 160:321 161:244 162:341 163:187 164:531
165:391 166:557 167:455 168:752 169:147 170:834
171:112 172:2 173:1730 174:588 175:416 176:514
177:479 178:1254 180:1180 181:65 182:716 183:278
184:424 185:1 186:2032 187:839 188:1032 189:1173
190:5486 192:5978 193:5519 194:4326 195:3398 196:1299
197:165 198:3616 199:4378 200:5719 201:1731 202:8439
203:8631 204:4356 205:2438 206:2737 207:2804 208:4067
209:3568 210:2751 211:1478 212:2037 213:1846 214:859
215:95 216:4999 217:1473 218:551 219:340 220:1253
221:558 222:325 223:311
End of report