Routing Table Report 00:00 GMT Wed 04 Jan, 2012
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 392329
Prefixes after maximum aggregation: 169733
Deaggregation factor: 2.31
Unique aggregates announced to Internet: 184663
Total ASes present in the Internet Routing Table: 39731
Prefixes per ASN: 9.87
Origin-only ASes present in the Internet Routing Table: 32625
Origin ASes announcing only one prefix: 15529
Transit ASes present in the Internet Routing Table: 5294
Transit-only ASes present in the Internet Routing Table: 133
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 30
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 6470
Unregistered ASNs in the Routing Table: 1051
Number of 32-bit ASNs allocated by the RIRs: 2153
Number of 32-bit ASNs visible in the Routing Table: 1812
Prefixes from 32-bit ASNs in the Routing Table: 4323
Special use prefixes present in the Routing Table: 88
Prefixes being announced from unallocated address space: 126
Number of addresses announced to Internet: 2335279846
Equivalent to 139 /8s, 49 /16s and 138 /24s
Percentage of available address space announced: 63.0
Percentage of allocated address space announced: 63.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.8
Total number of prefixes smaller than registry allocations: 164776
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94314
Total APNIC prefixes after maximum aggregation: 30280
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 90759
Unique aggregates announced from the APNIC address blocks: 37269
APNIC Region origin ASes present in the Internet Routing Table: 4606
APNIC Prefixes per ASN: 19.70
APNIC Region origin ASes announcing only one prefix: 1264
APNIC Region transit ASes present in the Internet Routing Table: 737
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 125
Number of APNIC addresses announced to Internet: 616633856
Equivalent to 36 /8s, 193 /16s and 22 /24s
Percentage of available APNIC address space announced: 78.2
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: 149579
Total ARIN prefixes after maximum aggregation: 77156
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 121448
Unique aggregates announced from the ARIN address blocks: 46072
ARIN Region origin ASes present in the Internet Routing Table: 14837
ARIN Prefixes per ASN: 8.19
ARIN Region origin ASes announcing only one prefix: 5667
ARIN Region transit ASes present in the Internet Routing Table: 1517
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 14
Number of ARIN addresses announced to Internet: 666704136
Equivalent to 39 /8s, 189 /16s and 25 /24s
Percentage of available ARIN address space announced: 53.0
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: 97619
Total RIPE prefixes after maximum aggregation: 52084
RIPE Deaggregation factor: 1.87
Prefixes being announced from the RIPE address blocks: 88763
Unique aggregates announced from the RIPE address blocks: 54075
RIPE Region origin ASes present in the Internet Routing Table: 16239
RIPE Prefixes per ASN: 5.47
RIPE Region origin ASes announcing only one prefix: 7983
RIPE Region transit ASes present in the Internet Routing Table: 2570
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1265
Number of RIPE addresses announced to Internet: 479415180
Equivalent to 28 /8s, 147 /16s and 75 /24s
Percentage of available RIPE address space announced: 77.2
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: 37662
Total LACNIC prefixes after maximum aggregation: 8060
LACNIC Deaggregation factor: 4.67
Prefixes being announced from the LACNIC address blocks: 37104
Unique aggregates announced from the LACNIC address blocks: 19132
LACNIC Region origin ASes present in the Internet Routing Table: 1559
LACNIC Prefixes per ASN: 23.80
LACNIC Region origin ASes announcing only one prefix: 455
LACNIC Region transit ASes present in the Internet Routing Table: 285
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 404
Number of LACNIC addresses announced to Internet: 95105288
Equivalent to 5 /8s, 171 /16s and 49 /24s
Percentage of available LACNIC address space announced: 63.0
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: 8591
Total AfriNIC prefixes after maximum aggregation: 2081
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 6625
Unique aggregates announced from the AfriNIC address blocks: 2082
AfriNIC Region origin ASes present in the Internet Routing Table: 504
AfriNIC Prefixes per ASN: 13.14
AfriNIC Region origin ASes announcing only one prefix: 160
AfriNIC Region transit ASes present in the Internet Routing Table: 113
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 30798592
Equivalent to 1 /8s, 213 /16s and 243 /24s
Percentage of available AfriNIC address space announced: 45.9
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 1904 11096 654 Korea Telecom (KIX)
17974 1720 503 37 PT TELEKOMUNIKASI INDONESIA
7545 1626 303 86 TPG Internet Pty Ltd
4755 1516 385 157 Videsh Sanchar Nigam Ltd. Aut
7552 1412 1064 7 Vietel Corporation
9829 1169 989 28 BSNL National Internet Backbo
9583 1110 81 497 Sify Limited
4808 1046 2021 299 CNCGROUP IP network: China169
24560 986 381 164 Bharti Airtel Ltd.
18101 976 131 157 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3475 3814 217 bellsouth.net, inc.
7029 2954 1042 212 Windstream Communications Inc
18566 2094 383 177 Covad Communications
1785 1862 680 122 AppliedTheory Corporation
4323 1622 1081 385 Time Warner Telecom
20115 1615 1551 619 Charter Communications
22773 1518 2909 107 Cox Communications, Inc.
30036 1477 263 691 Mediacom Communications Corp
19262 1388 4683 401 Verizon Global Networks
7018 1313 7047 867 AT&T WorldNet Services
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1516 480 15 Corbina telecom
286 1095 806 197 KPNQwest Backbone AS
15557 1092 2161 64 LDCOM NETWORKS
2118 672 99 14 EUnet/RELCOM Autonomous Syste
6830 643 1927 413 UPC Distribution Services
34984 635 132 197 Tellcom Iletisim Hizmetleri
20940 560 179 448 Akamai Technologies European
12479 552 636 53 Uni2 Autonomous System
9116 541 326 32 Goldenlines main autonomous s
3292 532 2106 408 TDC Tele Danmark
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1721 319 159 TVCABLE BOGOTA
28573 1562 1064 76 Types of queries are: POCs, o
8151 1502 2962 350 Uninet S.A. de C.V.
7303 1253 755 177 Telecom Argentina Stet-France
27947 634 73 94 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
7738 551 1050 31 Telecomunicacoes da Bahia S.A
3816 549 237 92 COLOMBIA TELECOMUNICACIONES S
6503 549 434 69 AVANTEL, S.A.
10481 547 429 25 Prima S.A.
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1039 958 13 TEDATA
24863 792 146 34 LINKdotNET AS number
3741 280 939 229 The Internet Solution
6713 250 649 18 Itissalat Al-MAGHRIB
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
29571 217 17 13 Ci Telecom Autonomous system
12258 196 28 61 YEBO-AS
24835 189 80 8 RAYA Telecom - Egypt
16637 157 664 85 Johnnic e-Ventures
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3475 3814 217 bellsouth.net, inc.
7029 2954 1042 212 Windstream Communications Inc
18566 2094 383 177 Covad Communications
4766 1904 11096 654 Korea Telecom (KIX)
1785 1862 680 122 AppliedTheory Corporation
10620 1721 319 159 TVCABLE BOGOTA
17974 1720 503 37 PT TELEKOMUNIKASI INDONESIA
7545 1626 303 86 TPG Internet Pty Ltd
4323 1622 1081 385 Time Warner Telecom
20115 1615 1551 619 Charter Communications
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2954 2742 Windstream Communications Inc
18566 2094 1917 Covad Communications
1785 1862 1740 AppliedTheory Corporation
17974 1720 1683 PT TELEKOMUNIKASI INDONESIA
10620 1721 1562 TVCABLE BOGOTA
7545 1626 1540 TPG Internet Pty Ltd
8402 1516 1501 Corbina telecom
28573 1562 1486 Types of queries are: POCs, o
22773 1518 1411 Cox Communications, Inc.
7552 1412 1405 Vietel Corporation
Complete listing at http://thyme.rand.apnic.net/rviews/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 7018 AT&T WorldNet Servic
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 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.244.56/29 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/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
37.28.152.0/21 23456 >>UNKNOWN<<
37.28.192.0/18 12353 Vodafone Portugal
Complete listing at http://thyme.rand.apnic.net/rviews/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 /8:20 /9:12 /10:27 /11:81 /12:237
/13:465 /14:820 /15:1480 /16:12231 /17:6391 /18:10503
/19:20709 /20:29107 /21:28711 /22:39063 /23:36448 /24:204263
/25:69 /26:84 /27:109 /28:296 /29:113 /30:548
/31:52 /32:490
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2566 2954 Windstream Communications Inc
6389 2119 3475 bellsouth.net, inc.
18566 2043 2094 Covad Communications
10620 1616 1721 TVCABLE BOGOTA
8402 1495 1516 Corbina telecom
30036 1436 1477 Mediacom Communications Corp
11492 1115 1152 Cable One
1785 1064 1862 AppliedTheory Corporation
7011 1051 1168 Citizens Utilities
15557 1042 1092 LDCOM NETWORKS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:491 2:414 4:19 5:1 6:3 8:369
12:1949 13:1 14:582 15:11 16:3 17:7
20:9 23:84 24:1718 27:1168 31:835 32:122
33:2 34:2 36:4 37:10 38:795 39:1
40:114 41:3006 42:85 43:1 44:3 46:1165
47:3 49:299 50:474 52:13 55:5 56:2
57:51 58:947 59:488 60:344 61:1185 62:953
63:1987 64:4145 65:2306 66:4396 67:2027 68:1353
69:3250 70:971 71:410 72:1815 73:1 74:2700
75:444 76:332 77:943 78:871 79:515 80:1194
81:855 82:546 83:536 84:582 85:1175 86:756
87:918 88:352 89:1620 90:260 91:4412 92:535
93:1520 94:1348 95:1045 96:402 97:288 98:777
99:38 100:18 101:249 103:611 106:10 107:120
108:103 109:1435 110:705 111:838 112:434 113:516
114:608 115:738 116:894 117:736 118:908 119:1256
120:366 121:696 122:1586 123:1038 124:1368 125:1350
128:525 129:192 130:189 131:588 132:163 133:21
134:227 135:54 136:213 137:151 138:285 139:137
140:491 141:257 142:383 143:394 144:499 145:67
146:477 147:230 148:686 149:276 150:165 151:192
152:444 153:169 154:7 155:398 156:210 157:366
158:155 159:506 160:340 161:221 162:335 163:188
164:522 165:415 166:546 167:455 168:816 169:147
170:826 171:95 172:4 173:1802 174:599 175:438
176:321 177:446 178:1152 180:1236 181:43 182:684
183:264 184:422 185:1 186:1462 187:810 188:1012
189:1171 190:5352 192:6012 193:5470 194:3823 195:3258
196:1296 197:175 198:3633 199:4257 200:5608 201:1690
202:8605 203:8583 204:4347 205:2429 206:2735 207:2808
208:4019 209:3565 210:2763 211:1484 212:2016 213:1827
214:819 215:93 216:4949 217:1489 218:572 219:339
220:1257 221:562 222:326 223:266
End of report
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