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.

Thursday, November 14, 2013

[bgp-stats] Routing Table Report - Hong Kong view

* BGP Routing Table Analysis Reports *
Routing Table Report 06:00 +10GMT Fri 15 Nov, 2013

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

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

BGP routing table entries examined: 470399
Prefixes after maximum aggregation: 188169
Deaggregation factor: 2.50
Unique aggregates announced to Internet: 234450
Total ASes present in the Internet Routing Table: 45385
Prefixes per ASN: 10.36
Origin-only ASes present in the Internet Routing Table: 35390
Origin ASes announcing only one prefix: 16315
Transit ASes present in the Internet Routing Table: 5845
Transit-only ASes present in the Internet Routing Table: 155
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 37
Max AS path prepend of ASN ( 55644) 31
Prefixes from unregistered ASNs in the Routing Table: 6958
Unregistered ASNs in the Routing Table: 530
Number of 32-bit ASNs allocated by the RIRs: 5348
Number of 32-bit ASNs visible in the Routing Table: 4150
Prefixes from 32-bit ASNs in the Routing Table: 12937
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 1071
Number of addresses announced to Internet: 2648228096
Equivalent to 157 /8s, 216 /16s and 193 /24s
Percentage of available address space announced: 71.5
Percentage of allocated address space announced: 71.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.2
Total number of prefixes smaller than registry allocations: 163983

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

Prefixes being announced by APNIC Region ASes: 109414
Total APNIC prefixes after maximum aggregation: 33179
APNIC Deaggregation factor: 3.30
Prefixes being announced from the APNIC address blocks: 111590
Unique aggregates announced from the APNIC address blocks: 47702
APNIC Region origin ASes present in the Internet Routing Table: 4849
APNIC Prefixes per ASN: 23.01
APNIC Region origin ASes announcing only one prefix: 1242
APNIC Region transit ASes present in the Internet Routing Table: 811
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 740
Number of APNIC addresses announced to Internet: 723910144
Equivalent to 43 /8s, 37 /16s and 254 /24s
Percentage of available APNIC address space announced: 84.6

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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: 162339
Total ARIN prefixes after maximum aggregation: 81433
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 163296
Unique aggregates announced from the ARIN address blocks: 75992
ARIN Region origin ASes present in the Internet Routing Table: 15901
ARIN Prefixes per ASN: 10.27
ARIN Region origin ASes announcing only one prefix: 6008
ARIN Region transit ASes present in the Internet Routing Table: 1618
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 20
Number of ARIN region 32-bit ASNs visible in the Routing Table: 34
Number of ARIN addresses announced to Internet: 1072952320
Equivalent to 63 /8s, 243 /16s and 244 /24s
Percentage of available ARIN address space announced: 56.8

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: 120519
Total RIPE prefixes after maximum aggregation: 60919
RIPE Deaggregation factor: 1.98
Prefixes being announced from the RIPE address blocks: 124161
Unique aggregates announced from the RIPE address blocks: 78792
RIPE Region origin ASes present in the Internet Routing Table: 17501
RIPE Prefixes per ASN: 7.09
RIPE Region origin ASes announcing only one prefix: 8305
RIPE Region transit ASes present in the Internet Routing Table: 2813
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2474
Number of RIPE addresses announced to Internet: 656668416
Equivalent to 39 /8s, 35 /16s and 247 /24s
Percentage of available RIPE address space announced: 95.5

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, 61952-62463, 196608-200191
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: 52725
Total LACNIC prefixes after maximum aggregation: 9880
LACNIC Deaggregation factor: 5.34
Prefixes being announced from the LACNIC address blocks: 57883
Unique aggregates announced from the LACNIC address blocks: 27025
LACNIC Region origin ASes present in the Internet Routing Table: 2041
LACNIC Prefixes per ASN: 28.36
LACNIC Region origin ASes announcing only one prefix: 559
LACNIC Region transit ASes present in the Internet Routing Table: 398
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 896
Number of LACNIC addresses announced to Internet: 142932992
Equivalent to 8 /8s, 132 /16s and 252 /24s
Percentage of available LACNIC address space announced: 85.2

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: 11768
Total AfriNIC prefixes after maximum aggregation: 2607
AfriNIC Deaggregation factor: 4.51
Prefixes being announced from the AfriNIC address blocks: 12397
Unique aggregates announced from the AfriNIC address blocks: 4081
AfriNIC Region origin ASes present in the Internet Routing Table: 683
AfriNIC Prefixes per ASN: 18.15
AfriNIC Region origin ASes announcing only one prefix: 201
AfriNIC Region transit ASes present in the Internet Routing Table: 132
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: 48049920
Equivalent to 2 /8s, 221 /16s and 47 /24s
Percentage of available AfriNIC address space announced: 47.7

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
17974 2713 903 89 PT TELEKOMUNIKASI INDONESIA
4766 2135 11550 644 Korea Telecom (KIX)
7545 2098 319 111 TPG Internet Pty Ltd
4755 1789 392 190 TATA Communications formerly
9829 1544 1245 45 BSNL National Internet Backbo
4808 1277 2188 366 CNCGROUP IP network: China169
9583 1242 94 508 Sify Limited
9498 1212 309 74 BHARTI Airtel Ltd.
7552 1165 1080 13 Vietel Corporation
24560 1096 380 163 Bharti Airtel Ltd., Telemedia

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

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3052 3688 56 BellSouth.net Inc.
22773 2197 2939 138 Cox Communications, Inc.
18566 2056 379 178 MegaPath Corporation
1785 2028 683 125 PaeTec Communications, Inc.
20115 1681 1653 608 Charter Communications
4323 1646 1098 418 Time Warner Telecom
701 1507 11147 785 MCI Communications Services,
30036 1382 311 583 Mediacom Communications Corp
7018 1342 17795 882 AT&T WorldNet Services
6983 1294 756 579 ITC^Deltacom

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

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1938 544 17 OJSC "Vimpelcom"
3352 1885 2396 44 Ibernet, Internet Access Netw
34984 1363 244 223 TELLCOM ILETISIM HIZMETLERI A
20940 1136 418 866 Akamai Technologies European
31148 1005 45 19 FreeNet ISP
13188 894 99 48 TOV "Bank-Inform"
6849 861 356 30 JSC UKRTELECOM,
8551 785 370 41 Bezeq International
6830 778 2329 430 UPC Distribution Services
12479 680 798 55 Uni2 Autonomous System

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

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3415 1793 87 NET Servicos de Comunicao S.A
10620 2652 430 226 >>UNKNOWN<<
7303 1729 1151 232 Telecom Argentina Stet-France
18881 1621 908 20 Global Village Telecom
8151 1354 2854 413 UniNet S.A. de C.V.
11830 866 364 15 Instituto Costarricense de El
6147 814 373 27 Telefonica Del Peru
27947 813 93 89 Telconet S.A
6503 791 434 62 AVANTEL, S.A.
7738 780 1498 36 Telecomunicacoes da Bahia S.A

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

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1864 112 5 Sudanese Mobile Telephone (ZA
24863 886 338 26 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 418 956 9 TEDATA
24835 297 144 9 RAYA Telecom - Egypt
3741 256 921 214 The Internet Solution
36992 229 501 29 Etisalat MISR
29571 224 17 12 Ci Telecom Autonomous system
15706 221 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

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

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3415 1793 87 NET Servicos de Comunicao S.A
6389 3052 3688 56 BellSouth.net Inc.
17974 2713 903 89 PT TELEKOMUNIKASI INDONESIA
10620 2652 430 226 >>UNKNOWN<<
22773 2197 2939 138 Cox Communications, Inc.
4766 2135 11550 644 Korea Telecom (KIX)
7545 2098 319 111 TPG Internet Pty Ltd
18566 2056 379 178 MegaPath Corporation
1785 2028 683 125 PaeTec Communications, Inc.
8402 1938 544 17 OJSC "Vimpelcom"

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

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

ASN No of nets Net Savings Description
6389 3052 2996 BellSouth.net Inc.
17974 2713 2624 PT TELEKOMUNIKASI INDONESIA
10620 2652 2426 >>UNKNOWN<<
22773 2197 2059 Cox Communications, Inc.
7545 2098 1987 TPG Internet Pty Ltd
8402 1938 1921 OJSC "Vimpelcom"
1785 2028 1903 PaeTec Communications, Inc.
18566 2056 1878 MegaPath Corporation
36998 1864 1859 Sudanese Mobile Telephone (ZA
3352 1885 1841 Ibernet, Internet Access Netw

Complete listing at http://thyme.rand.apnic.net/hk/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65010 PRIVATE 1.38.8.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.9.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.11.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.32.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.160.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.192.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.224.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.240.0/21 38266 Hutchison Essar Ltd.
65514 PRIVATE 5.102.224.0/19 47956 XFONE COMMUNICATION
62828 UNALLOCATED 8.21.130.0/24 3356 Level 3 Communicatio

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

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

Prefix Origin AS Description
0.0.0.0/0 4641 The Chinese University of Hon

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

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

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.90.192.0/18 3257 Tiscali Intl Network
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/hk/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

!!Default route being announced!!

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:16 /9:11 /10:30 /11:92 /12:253
/13:474 /14:916 /15:1599 /16:12753 /17:6685 /18:11172
/19:23005 /20:32801 /21:35711 /22:50061 /23:44259 /24:250529
/25:3 /26:5 /27:9 /28:7 /29:6 /30:0
/31:0 /32:1

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

ASN No of nets Total ann. Description
18566 2010 2056 MegaPath Corporation
36998 1829 1864 Sudanese Mobile Telephone (ZA
6389 1705 3052 BellSouth.net Inc.
8402 1601 1938 OJSC "Vimpelcom"
3352 1477 1885 Ibernet, Internet Access Netw
22773 1456 2197 Cox Communications, Inc.
30036 1228 1382 Mediacom Communications Corp
11492 1191 1229 Cable One
1785 1078 2028 PaeTec Communications, Inc.
6983 1034 1294 ITC^Deltacom

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

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

1:896 2:850 3:3 4:17 5:1024 6:21
8:618 12:1890 13:3 14:895 15:11 16:3
17:17 18:19 20:21 23:561 24:1739 27:1644
31:1437 32:44 33:2 34:5 36:86 37:1919
38:919 39:5 40:179 41:3272 42:256 44:14
46:2015 47:10 49:690 50:830 52:12 54:43
55:7 56:4 57:26 58:1090 59:572 60:377
61:1466 62:1238 63:1978 64:4346 65:2338 66:4141
67:2115 68:1109 69:3289 70:871 71:489 72:2038
74:2559 75:326 76:296 77:1161 78:1055 79:676
80:1641 81:1147 82:650 83:674 84:586 85:1256
86:382 87:1013 88:623 89:1561 90:150 91:5653
92:625 93:1603 94:2036 95:1633 96:511 97:350
98:1034 99:41 100:31 101:638 103:3592 105:527
106:133 107:215 108:533 109:1946 110:975 111:1111
112:593 113:807 114:746 115:1037 116:1005 117:818
118:1188 119:1276 120:335 121:750 122:1842 123:1265
124:1402 125:1432 128:679 129:229 130:329 131:662
132:366 133:158 134:557 135:72 136:283 137:248
138:351 139:177 140:197 141:332 142:542 143:432
144:499 145:90 146:528 147:408 148:782 149:368
150:135 151:652 152:411 153:206 154:53 155:508
156:295 157:419 158:280 159:694 160:362 161:454
162:851 163:223 164:631 165:586 166:260 167:634
168:1042 169:125 170:1118 171:185 172:27 173:1593
174:688 175:522 176:1307 177:2483 178:1977 179:291
180:1585 181:867 182:1375 183:465 184:667 185:1016
186:2620 187:1472 188:1852 189:1260 190:7300 192:7043
193:5423 194:4044 195:3369 196:1340 197:1042 198:4740
199:5477 200:6069 201:2514 202:8937 203:8895 204:4531
205:2648 206:2836 207:2832 208:4010 209:3657 210:2984
211:1558 212:2169 213:1979 214:903 215:91 216:5437
217:1692 218:625 219:321 220:1272 221:577 222:327
223:504

End of report
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