Routing Table Report 00:00 GMT Thu 23 Feb, 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: 402166
Prefixes after maximum aggregation: 171472
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 193452
Total ASes present in the Internet Routing Table: 40184
Prefixes per ASN: 10.01
Origin-only ASes present in the Internet Routing Table: 32891
Origin ASes announcing only one prefix: 15540
Transit ASes present in the Internet Routing Table: 5285
Transit-only ASes present in the Internet Routing Table: 131
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 28
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5212
Unregistered ASNs in the Routing Table: 149
Number of 32-bit ASNs allocated by the RIRs: 2289
Number of 32-bit ASNs visible in the Routing Table: 2008
Prefixes from 32-bit ASNs in the Routing Table: 4829
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 272
Number of addresses announced to Internet: 2521533917
Equivalent to 150 /8s, 75 /16s and 141 /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: 169399
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96484
Total APNIC prefixes after maximum aggregation: 30650
APNIC Deaggregation factor: 3.15
Prefixes being announced from the APNIC address blocks: 92880
Unique aggregates announced from the APNIC address blocks: 39222
APNIC Region origin ASes present in the Internet Routing Table: 4635
APNIC Prefixes per ASN: 20.04
APNIC Region origin ASes announcing only one prefix: 1244
APNIC Region transit ASes present in the Internet Routing Table: 732
Average APNIC Region AS path length visible: 3.9
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 151
Number of APNIC addresses announced to Internet: 640059648
Equivalent to 38 /8s, 38 /16s and 137 /24s
Percentage of available APNIC address space announced: 81.2
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: 151309
Total ARIN prefixes after maximum aggregation: 77688
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 122853
Unique aggregates announced from the ARIN address blocks: 49568
ARIN Region origin ASes present in the Internet Routing Table: 14921
ARIN Prefixes per ASN: 8.23
ARIN Region origin ASes announcing only one prefix: 5672
ARIN Region transit ASes present in the Internet Routing Table: 1518
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 18
Number of ARIN region 32-bit ASNs visible in the Routing Table: 15
Number of ARIN addresses announced to Internet: 805426184
Equivalent to 48 /8s, 1 /16s and 212 /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: 101481
Total RIPE prefixes after maximum aggregation: 52811
RIPE Deaggregation factor: 1.92
Prefixes being announced from the RIPE address blocks: 92358
Unique aggregates announced from the RIPE address blocks: 56726
RIPE Region origin ASes present in the Internet Routing Table: 16343
RIPE Prefixes per ASN: 5.65
RIPE Region origin ASes announcing only one prefix: 8019
RIPE Region transit ASes present in the Internet Routing Table: 2557
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1381
Number of RIPE addresses announced to Internet: 501193612
Equivalent to 29 /8s, 223 /16s and 155 /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: 38881
Total LACNIC prefixes after maximum aggregation: 8135
LACNIC Deaggregation factor: 4.78
Prefixes being announced from the LACNIC address blocks: 38504
Unique aggregates announced from the LACNIC address blocks: 19495
LACNIC Region origin ASes present in the Internet Routing Table: 1573
LACNIC Prefixes per ASN: 24.48
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 294
Average LACNIC Region AS path length visible: 3.9
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 457
Number of LACNIC addresses announced to Internet: 96852488
Equivalent to 5 /8s, 197 /16s and 218 /24s
Percentage of available LACNIC address space announced: 64.1
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: 8951
Total AfriNIC prefixes after maximum aggregation: 2096
AfriNIC Deaggregation factor: 4.27
Prefixes being announced from the AfriNIC address blocks: 6964
Unique aggregates announced from the AfriNIC address blocks: 2075
AfriNIC Region origin ASes present in the Internet Routing Table: 517
AfriNIC Prefixes per ASN: 13.47
AfriNIC Region origin ASes announcing only one prefix: 161
AfriNIC Region transit ASes present in the Internet Routing Table: 120
Average AfriNIC Region AS path length visible: 3.9
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: 31454208
Equivalent to 1 /8s, 223 /16s and 244 /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 1923 11104 677 Korea Telecom (KIX)
17974 1735 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1640 303 86 TPG Internet Pty Ltd
4755 1557 385 156 Videsh Sanchar Nigam Ltd. Aut
7552 1282 1064 7 Vietel Corporation
9829 1182 997 29 BSNL National Internet Backbo
9583 1126 84 483 Sify Limited
4808 1072 2043 308 CNCGROUP IP network: China169
24560 1019 385 167 Bharti Airtel Ltd.
18101 951 131 156 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 3438 3807 200 bellsouth.net, inc.
7029 3352 1044 172 Windstream Communications Inc
18566 2092 382 177 Covad Communications
1785 1875 680 126 AppliedTheory Corporation
20115 1627 1551 629 Charter Communications
4323 1606 1059 380 Time Warner Telecom
22773 1531 2910 110 Cox Communications, Inc.
30036 1412 253 748 Mediacom Communications Corp
19262 1389 4703 399 Verizon Global Networks
7018 1318 7013 859 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 1729 480 15 Corbina telecom
2118 1399 97 13 EUnet/RELCOM Autonomous Syste
15557 1099 2184 60 LDCOM NETWORKS
286 1057 806 200 KPNQwest Backbone AS
34984 658 188 172 Tellcom Iletisim Hizmetleri
6830 644 1927 413 UPC Distribution Services
20940 615 199 478 Akamai Technologies European
12479 608 644 55 Uni2 Autonomous System
8551 569 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
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 1749 324 171 TVCABLE BOGOTA
28573 1670 1086 66 Types of queries are: POCs, o
8151 1522 2990 345 Uninet S.A. de C.V.
7303 1296 790 185 Telecom Argentina Stet-France
26615 852 672 33 Types of queries are: POCs, o
27947 648 67 107 Telconet S.A
11172 634 107 74 Alestra
22047 581 322 17 Types of queries are: POCs, o
6503 562 418 68 AVANTEL, S.A.
3816 556 238 91 COLOMBIA TELECOMUNICACIONES S
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 1224 958 13 TEDATA
24863 832 274 35 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 YEBO-AS
24835 194 80 8 RAYA Telecom - Egypt
16637 157 664 86 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 3438 3807 200 bellsouth.net, inc.
7029 3352 1044 172 Windstream Communications Inc
18566 2092 382 177 Covad Communications
4766 1923 11104 677 Korea Telecom (KIX)
1785 1875 680 126 AppliedTheory Corporation
10620 1749 324 171 TVCABLE BOGOTA
17974 1735 503 36 PT TELEKOMUNIKASI INDONESIA
8402 1729 480 15 Corbina telecom
28573 1670 1086 66 Types of queries are: POCs, o
7545 1640 303 86 TPG Internet Pty Ltd
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 3352 3180 Windstream Communications Inc
18566 2092 1915 Covad Communications
1785 1875 1749 AppliedTheory Corporation
8402 1729 1714 Corbina telecom
17974 1735 1699 PT TELEKOMUNIKASI INDONESIA
28573 1670 1604 Types of queries are: POCs, o
10620 1749 1578 TVCABLE BOGOTA
7545 1640 1554 TPG Internet Pty Ltd
22773 1531 1421 Cox Communications, Inc.
4755 1557 1401 Videsh Sanchar Nigam Ltd. Aut
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
23456 UNALLOCATED 8.14.101.0/24 6461 AboveNet Communicati
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
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.245.1/32 286 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
10.29.245.27/32 286 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
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/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 /8:19 /9:12 /10:28 /11:81 /12:232
/13:459 /14:816 /15:1506 /16:12299 /17:6489 /18:10768
/19:21027 /20:29422 /21:29723 /22:40255 /23:37538 /24:209854
/25:66 /26:82 /27:109 /28:280 /29:103 /30:530
/31:19 /32:449
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2989 3352 Windstream Communications Inc
6389 2109 3438 bellsouth.net, inc.
18566 2041 2092 Covad Communications
8402 1708 1729 Corbina telecom
10620 1646 1749 TVCABLE BOGOTA
30036 1362 1412 Mediacom Communications Corp
11492 1121 1158 Cable One
1785 1063 1875 AppliedTheory Corporation
15557 1046 1099 LDCOM NETWORKS
7011 1038 1154 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:507 2:694 4:18 6:3 8:387 12:1965
13:1 14:607 15:11 16:3 17:7 20:8
23:136 24:1744 27:1195 31:944 32:124 33:2
34:2 36:9 37:186 38:783 39:4 40:116
41:3112 42:97 43:1 44:3 46:1327 47:3
49:335 50:509 52:13 54:2 55:10 56:3
57:46 58:971 59:495 60:345 61:1203 62:977
63:2024 64:4131 65:2285 66:4481 67:2074 68:1357
69:3276 70:954 71:407 72:1818 73:1 74:2710
75:482 76:329 77:974 78:968 79:522 80:1226
81:886 82:643 83:530 84:596 85:1148 86:735
87:922 88:350 89:1573 90:283 91:4505 92:514
93:1353 94:1392 95:1116 96:422 97:312 98:841
99:38 100:4 101:273 103:838 106:66 107:159
108:177 109:1552 110:728 111:859 112:442 113:547
114:618 115:767 116:885 117:723 118:915 119:1264
120:369 121:710 122:1630 123:1085 124:1392 125:1326
128:540 129:193 130:220 131:592 132:164 133:21
134:236 135:62 136:215 137:182 138:287 139:156
140:490 141:261 142:394 143:405 144:517 145:69
146:487 147:246 148:768 149:301 150:163 151:198
152:447 153:172 154:7 155:411 156:213 157:371
158:162 159:517 160:321 161:241 162:342 163:187
164:531 165:413 166:559 167:458 168:766 169:149
170:838 171:116 172:4 173:1737 174:601 175:443
176:509 177:496 178:1278 180:1209 181:68 182:747
183:280 184:431 185:1 186:2005 187:855 188:1084
189:1180 190:5467 192:6011 193:5564 194:4372 195:3447
196:1291 197:167 198:3633 199:4426 200:5716 201:1743
202:8461 203:8690 204:4368 205:2445 206:2764 207:2802
208:4096 209:3584 210:2786 211:1490 212:2073 213:1853
214:855 215:101 216:5056 217:1510 218:554 219:341
220:1234 221:562 222:347 223:314
End of report