The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Tuesday, September 3, 2013

[bgp-stats] Routing Table Report - Japan view

* BGP Routing Table Analysis Reports *
Routing Table Report 04:00 +10GMT Wed 04 Sep, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/

Analysis Summary
----------------

BGP routing table entries examined: 465333
Prefixes after maximum aggregation: 187709
Deaggregation factor: 2.48
Unique aggregates announced to Internet: 231340
Total ASes present in the Internet Routing Table: 44865
Prefixes per ASN: 10.37
Origin-only ASes present in the Internet Routing Table: 35052
Origin ASes announcing only one prefix: 16257
Transit ASes present in the Internet Routing Table: 5923
Transit-only ASes present in the Internet Routing Table: 177
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 29
Max AS path prepend of ASN ( 36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5531
Unregistered ASNs in the Routing Table: 1834
Number of 32-bit ASNs allocated by the RIRs: 4997
Number of 32-bit ASNs visible in the Routing Table: 3890
Prefixes from 32-bit ASNs in the Routing Table: 11893
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 356
Number of addresses announced to Internet: 2639240396
Equivalent to 157 /8s, 79 /16s and 156 /24s
Percentage of available address space announced: 71.3
Percentage of allocated address space announced: 71.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 94.9
Total number of prefixes smaller than registry allocations: 163039

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 110330
Total APNIC prefixes after maximum aggregation: 33484
APNIC Deaggregation factor: 3.30
Prefixes being announced from the APNIC address blocks: 112235
Unique aggregates announced from the APNIC address blocks: 46678
APNIC Region origin ASes present in the Internet Routing Table: 4865
APNIC Prefixes per ASN: 23.07
APNIC Region origin ASes announcing only one prefix: 1224
APNIC Region transit ASes present in the Internet Routing Table: 830
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 655
Number of APNIC addresses announced to Internet: 727745216
Equivalent to 43 /8s, 96 /16s and 130 /24s
Percentage of available APNIC address space announced: 85.1

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-133119
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, 150/8, 153/8,
163/8, 171/8, 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: 161511
Total ARIN prefixes after maximum aggregation: 81000
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 162000
Unique aggregates announced from the ARIN address blocks: 75363
ARIN Region origin ASes present in the Internet Routing Table: 15847
ARIN Prefixes per ASN: 10.22
ARIN Region origin ASes announcing only one prefix: 6023
ARIN Region transit ASes present in the Internet Routing Table: 1669
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 27
Number of ARIN region 32-bit ASNs visible in the Routing Table: 20
Number of ARIN addresses announced to Internet: 1071135488
Equivalent to 63 /8s, 216 /16s and 59 /24s
Percentage of available ARIN address space announced: 56.7

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, 62464-63487, 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, 128/8,
129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
173/8, 174/8, 184/8, 192/8, 198/8, 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: 119103
Total RIPE prefixes after maximum aggregation: 60986
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 122954
Unique aggregates announced from the RIPE address blocks: 79373
RIPE Region origin ASes present in the Internet Routing Table: 17395
RIPE Prefixes per ASN: 7.07
RIPE Region origin ASes announcing only one prefix: 8245
RIPE Region transit ASes present in the Internet Routing Table: 2819
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2393
Number of RIPE addresses announced to Internet: 657278180
Equivalent to 39 /8s, 45 /16s and 68 /24s
Percentage of available RIPE address space announced: 95.6

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
59392-61439, 196608-199679
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,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 50807
Total LACNIC prefixes after maximum aggregation: 9655
LACNIC Deaggregation factor: 5.26
Prefixes being announced from the LACNIC address blocks: 55575
Unique aggregates announced from the LACNIC address blocks: 25706
LACNIC Region origin ASes present in the Internet Routing Table: 2003
LACNIC Prefixes per ASN: 27.75
LACNIC Region origin ASes announcing only one prefix: 567
LACNIC Region transit ASes present in the Internet Routing Table: 379
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 816
Number of LACNIC addresses announced to Internet: 135806504
Equivalent to 8 /8s, 24 /16s and 62 /24s
Percentage of available LACNIC address space announced: 80.9

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 11600
Total AfriNIC prefixes after maximum aggregation: 2536
AfriNIC Deaggregation factor: 4.57
Prefixes being announced from the AfriNIC address blocks: 12213
Unique aggregates announced from the AfriNIC address blocks: 3890
AfriNIC Region origin ASes present in the Internet Routing Table: 653
AfriNIC Prefixes per ASN: 18.70
AfriNIC Region origin ASes announcing only one prefix: 198
AfriNIC Region transit ASes present in the Internet Routing Table: 135
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 6
Number of AfriNIC addresses announced to Internet: 46533888
Equivalent to 2 /8s, 198 /16s and 13 /24s
Percentage of available AfriNIC address space announced: 46.2

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 2917 11561 924 Korea Telecom (KIX)
17974 2670 903 91 PT TELEKOMUNIKASI INDONESIA
7545 2064 321 112 TPG Internet Pty Ltd
4755 1769 391 191 TATA Communications formerly
9829 1560 1241 47 BSNL National Internet Backbo
9583 1227 92 506 Sify Limited
9498 1183 309 70 BHARTI Airtel Ltd.
4808 1159 2129 341 CNCGROUP IP network: China169
7552 1139 1080 13 Vietel Corporation
24560 1089 394 160 Bharti Airtel Ltd., Telemedia

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 3069 3689 62 bellsouth.net, inc.
18566 2065 382 184 Covad Communications
22773 2043 2933 125 Cox Communications, Inc.
1785 2006 679 125 PaeTec Communications, Inc.
20115 1674 1645 630 Charter Communications
4323 1615 1103 408 Time Warner Telecom
701 1522 11119 797 UUNET Technologies, Inc.
30036 1349 302 641 Mediacom Communications Corp
7018 1317 11277 830 AT&T WorldNet Services
11492 1220 218 366 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 1726 544 16 Corbina telecom
34984 1315 244 221 BILISIM TELEKOM
31148 982 43 18 FreeNet ISP
20940 977 348 753 Akamai Technologies European
2118 954 97 13 EUnet/RELCOM Autonomous Syste
6830 895 2367 428 UPC Distribution Services
13188 846 99 72 Educational Network
8551 752 370 41 Bezeq International
12479 687 797 53 Uni2 Autonomous System
58113 541 55 339 LIR DATACENTER TELECOM SRL

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
28573 3219 1706 99 NET Servicos de Comunicao S.A
10620 2551 415 271 TVCABLE BOGOTA
7303 1733 1158 223 Telecom Argentina Stet-France
18881 1424 844 20 Global Village Telecom
8151 1275 2761 382 UniNet S.A. de C.V.
11830 933 364 15 Instituto Costarricense de El
27947 839 94 91 Telconet S.A
6503 796 434 64 AVANTEL, S.A.
6147 734 374 25 Telefonica Del Peru
3816 723 302 83 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
36998 1861 112 5 MOBITEL
24863 870 274 30 LINKdotNET AS number
6713 543 633 26 Itissalat Al-MAGHRIB
8452 435 956 9 TEDATA
24835 291 80 8 RAYA Telecom - Egypt
3741 258 921 217 The Internet Solution
36992 222 501 28 Etisalat MISR
15706 221 32 6 Sudatel Internet Exchange Aut
29571 220 17 12 Ci Telecom Autonomous system
12258 193 28 71 Vodacom Internet Company

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
28573 3219 1706 99 NET Servicos de Comunicao S.A
6389 3069 3689 62 bellsouth.net, inc.
4766 2917 11561 924 Korea Telecom (KIX)
17974 2670 903 91 PT TELEKOMUNIKASI INDONESIA
10620 2551 415 271 TVCABLE BOGOTA
18566 2065 382 184 Covad Communications
7545 2064 321 112 TPG Internet Pty Ltd
22773 2043 2933 125 Cox Communications, Inc.
1785 2006 679 125 PaeTec Communications, Inc.
36998 1861 112 5 MOBITEL

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3069 3007 bellsouth.net, inc.
17974 2670 2579 PT TELEKOMUNIKASI INDONESIA
10620 2551 2280 TVCABLE BOGOTA
4766 2917 1993 Korea Telecom (KIX)
7545 2064 1952 TPG Internet Pty Ltd
22773 2043 1918 Cox Communications, Inc.
18566 2065 1881 Covad Communications
1785 2006 1881 PaeTec Communications, Inc.
36998 1861 1856 MOBITEL
8402 1726 1710 Corbina telecom

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
30031 UNALLOCATED 12.27.122.0/24 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 12.45.103.0/24 209 Qwest
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
14764 UNALLOCATED 12.108.237.0/24 7018 AT&T WorldNet Servic
33649 UNALLOCATED 12.111.112.0/24 19029 New Edge Networks
30621 UNALLOCATED 12.151.74.0/23 7018 AT&T WorldNet Servic

Complete listing at http://thyme.rand.apnic.net/current/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
100.100.0.0/24 4847 China Networks Inter-Exchange

Complete listing at http://thyme.rand.apnic.net/current/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.90.192.0/18 36086 Broad Communications Technolo
23.91.0.0/19 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.92.16.0/21 8001 Net Access Corporation
23.92.24.0/22 6939 Hurricane Electric
23.92.48.0/20 29761 OC3 Networks & Web Solutions,
23.92.64.0/24 54540 Incero LLC
23.92.65.0/24 54540 Incero LLC
23.92.66.0/24 54540 Incero LLC

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 /8:16 /9:11 /10:30 /11:93 /12:250
/13:479 /14:905 /15:1615 /16:12775 /17:6685 /18:11100
/19:22681 /20:32389 /21:34969 /22:49189 /23:42973 /24:246684
/25:869 /26:1003 /27:466 /28:44 /29:77 /30:16
/31:0 /32:14

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2016 2065 Covad Communications
36998 1826 1861 MOBITEL
6389 1714 3069 bellsouth.net, inc.
8402 1452 1726 Corbina telecom
22773 1329 2043 Cox Communications, Inc.
30036 1212 1349 Mediacom Communications Corp
11492 1181 1220 Cable One
1785 1078 2006 PaeTec Communications, Inc.
6983 1025 1152 ITC^Deltacom
7011 932 1175 Citizens Utilities

Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:811 2:841 3:3 4:19 5:931 6:19
8:605 9:7 12:1895 13:2 14:871 15:11
16:3 17:11 18:19 20:18 23:374 24:1742
27:1558 31:1431 32:45 33:2 34:5 36:75
37:1851 38:898 39:4 40:179 41:3255 42:254
44:9 46:1965 47:4 49:654 50:838 52:12
54:37 55:4 57:26 58:1159 59:618 60:336
61:1402 62:1221 63:1992 64:4572 65:2294 66:4176
67:2074 68:1088 69:3296 70:862 71:496 72:2003
74:2541 75:326 76:304 77:1169 78:1055 79:625
80:1317 81:1023 82:635 83:583 84:578 85:1237
86:480 87:1046 88:538 89:1829 90:158 91:5612
92:633 93:1671 94:2022 95:1563 96:524 97:347
98:1039 99:44 100:29 101:597 103:3254 105:519
106:141 107:209 108:497 109:1859 110:954 111:1120
112:560 113:794 114:714 115:990 116:978 117:813
118:1124 119:1296 120:369 121:741 122:1867 123:1249
124:1386 125:1421 128:613 129:223 130:309 131:672
132:348 133:160 134:286 135:67 136:270 137:268
138:348 139:179 140:196 141:323 142:552 143:387
144:491 145:101 146:531 147:489 148:686 149:355
150:150 151:565 152:415 153:195 154:30 155:480
156:274 157:408 158:282 159:753 160:350 161:457
162:632 163:222 164:627 165:561 166:255 167:605
168:1032 169:126 170:1081 171:192 172:25 173:1615
174:530 175:499 176:1198 177:2148 178:1908 179:118
180:1529 181:696 182:1258 183:443 184:634 185:797
186:2476 187:1403 188:1891 189:1289 190:7056 192:6947
193:5528 194:4613 195:3585 196:1341 197:1007 198:4657
199:5440 200:5995 201:2596 202:8926 203:8895 204:4518
205:2602 206:2836 207:2899 208:4000 209:3621 210:2941
211:1553 212:2265 213:2041 214:920 215:101 216:5293
217:1650 218:623 219:313 220:1277 221:556 222:325
223:504

End of report
_______________________________________________
bgp-stats mailing list
bgp-stats@lists.apnic.net
http://mailman.apnic.net/mailman/listinfo/bgp-stats
Posted by Admin at 11:34 AM

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)